CN101921553B - Teflon insulating self-adhesive tape and application method thereof - Google Patents
Teflon insulating self-adhesive tape and application method thereof Download PDFInfo
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- CN101921553B CN101921553B CN 201010216376 CN201010216376A CN101921553B CN 101921553 B CN101921553 B CN 101921553B CN 201010216376 CN201010216376 CN 201010216376 CN 201010216376 A CN201010216376 A CN 201010216376A CN 101921553 B CN101921553 B CN 101921553B
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Abstract
The invention discloses a teflon insulating self-adhesive tape and a application method thereof. The preparation method of the teflon insulating self-adhesive tape comprises the following steps: preparing teflon dispersion resin color masterbatch, and proportionally mixing the teflon dispersion resin color masterbatch and teflon dispersion resin. The teflon insulating self-adhesive tape has the beneficial effects that the self-adhesive tape does not contain any adhesive, and has excellent and stable comprehensive properties; the limited oxygen index of the self-adhesive tape is more than 95, and thus the self-adhesive tape has incombustibility; the volume resistance is greater than or equal to 1*1017 ohm.cm, and thus the self-adhesive tape has favorable insulating property; the water absorptivity is less than 0.01%, and thus the self-adhesive tape has favorable humidity resistance; the self-adhesive tape can be used at -65-250 DEG C for a long time; and the self-adhesive tape has favorable pressure resistance, strong acid and strong base resistance, oxidation resistance and ageing resistance, is applicable to outdoor extreme environment, and is an ideal insulating material. When the self-adhesive tape is stretched for definite multiples at ordinary temperature, the tape can have self-adhesive and adhesive force, and the adhesion at the interlayer and the port is reliable.
Description
Technical field
The present invention relates to a kind of self-adhesive tape of using as electrical material, especially a kind of teflon insulating self-adhesive tape and using method.
Background technology
At present, the self-adhesive tape of Xiao Shouing mainly is to be matrix with rubber on the market, and dip-coating has the tackiness agent of self-adhesion performance or add earlier tackiness agent in prescription and processes.These self-adhesive tapes in use owing to be subjected to the comprehensive action of internal and external factor (as heat, oxygen, ozone, metal ion, ionizing rays, light, mechanical force etc.), it is aging that rubber and tackiness agent can produce, performance descends gradually, to such an extent as to lose insulation effect at last.
Summary of the invention
The objective of the invention is the deficiency at the above existing self-adhesive tape existence, give full play to the characteristic of tetrafluoroethylene, a kind of any glue paste that do not contain is provided, before not using, there is not viscosity, stretch 1～3 times during use, just have good autohension, have good electric insulativity, proof voltage, high-low temperature resistant, ageing-resistant, anti-oxidant, a kind of teflon insulating self-adhesive tape of excellent performance such as not firing, for art of electrical insulation provides utmost point desirable material.
Another object of the present invention provides a kind of using method of teflon insulating self-adhesive tape.
The present invention is achieved in that a kind of teflon insulating self-adhesive tape, and it is by comprising what following making step was made:
One, the making of polytetrafluoroethyldispersion dispersion resin colour batch
1, pigment is mixed by 1: 0.8～1.2 weight ratio with dehydrated alcohol, continuously grinding took out after 20～24 hours then, sieved after 100～150 ℃ of dryings, and sieve is 300～500 orders.Grinding can be to be placed in the corundum ball milling device to carry out, and compound must not surpass 1/3rd of container volume, otherwise will influence grinding effect.
2, the pigment with above processing mixes by 1: 1.5～2.5 weight ratio with polytetrafluoroethyldispersion dispersion resin, makes the polytetrafluoroethyldispersion dispersion resin colour batch; In the process of mixing, preferably under 19～24 ℃ temperature environment, at first the pigment that will handle mixes with the weight proportion of resin (crossing 50 mesh sieves) by 1: 1.5～2.5 of pre-sieve, and the time of high-speed mixing must not surpass 30S (second) at every turn, and purpose is to guarantee that pigment do not assemble agglomerating.Make in this way, the pigment loss is few, and mixing uniformity is good, and equipment is simple, and production cost is low, and is easy to operate.
Two, batching
1, the polytetrafluoroethyldispersion dispersion resin colour batch that first step is obtained and polytetrafluoroethyldispersion dispersion resin are placed in the environment below 19 ℃ and deposited 20～24 hours, make raw material loose naturally, are convenient to sieve;
2, adding earlier auxiliary agent in polytetrafluoroethyldispersion dispersion resin, is that stirring is that 5～10min makes auxiliary agent evenly mix with polytetrafluoroethyldispersion dispersion resin under 15～20r/min at rotating speed; The weight ratio of polytetrafluoroethyldispersion dispersion resin and auxiliary agent is 20～30: 100.For guaranteeing that finished product has excellent insulating property, described auxiliary agent is isoparaffin kind solvent oil ISOPAR G.
3, in the above-mentioned polytetrafluoroethyldispersion dispersion resin that has added auxiliary agent and stirred, add the dispersion agent that accounts for gross weight 0.5～1%, be to stir 5～10min under 15～20r/min at rotating speed, obtain the polytetrafluoroethyldispersion dispersion resin compound; Dispersion agent makes the solid particles surface of cohesion form the bilayer structure, outer dispersion agent polar end and pigment have stronger avidity, make the solid particles surface of cohesion easily in moistening, make system even, suspension property increases, do not precipitate, it is the same to reach whole system physico-chemical property, the unlikely flocculation of pigment.The preferred Macrogol 200 of described dispersion agent or poly(oxyethylene glycol) 400.
4, envrionment temperature control is that 10～20: 100 ratio is mixed in polytetrafluoroethyldispersion dispersion resin colour batch and the weight ratio of polytetrafluoroethyldispersion dispersion resin compound in 24 ± 2 ℃, can be to stir 5～10min under 15～20r/min at rotating speed in the process of mixing;
5,20～30 mesh sieve sieve, and remove and stir conglomeration, the dead skin that may cause;
6, the compound that polytetrafluoroethyldispersion dispersion resin colour batch and polytetrafluoroethyldispersion dispersion resin compound are formed is poured in the proportion container and is sealed, and avoids the volatilization of boosting agent; And quiet putting 20～24 hours, the boosting agent is further fully permeated to resin;
7, the compound of the quiet polytetrafluoroethyldispersion dispersion resin colour batch of putting well and polytetrafluoroethyldispersion dispersion resin compound composition is sent into baking oven and carry out slaking, curing temperature is 50～70 ℃, time is 20～24 hours, purpose is: under certain temperature and time, make that resin is more even to absorb the boosting agent more fully, make boosting agent and mixed with resin more even.
A kind of using method of teflon insulating self-adhesive tape, be stretched to 1～3 times of normality at normal temperatures with hand during use, make belt body have self-adhesion and sticking power, then self-adhesive tape one end that stretches is ridden on the conductor tab and pin, after conductor tab tension self-adhesive tape twines some numbers of plies, make belt body be close to conductor tab and firmly one draw along direction, smooth out with the fingers tightly with the suitable steering handle fracture of hand again and get final product.
The invention has the beneficial effects as follows: select polytetrafluoroethyldispersion dispersion resin for use, need not add any tackiness agent and process, over-all properties is superior stable, and limited oxygen index has uninflammability more than 95; Volume resistance 〉=1 * 10
17Ohmcm, insulating property are good; Have good autohension when using by method provided by the invention, between adhesive tape layer, the port bonding is reliable; Water-intake rate＜0.01%, humidity resistance is good; Can be at-65 ℃～250 ℃ temperature range life-time service; Withstand voltage, anti-strong acid, highly basic, strong oxidizer, anti-oxidation, ageing-resistant performance is good, more is applicable under the outdoor severe environment to use, and is a kind of desirable insulating material.
Description of drawings
Fig. 1 is the structural representation of premolding equipment of the present invention;
Fig. 2 is the structural representation of pushing mould of the present invention;
Fig. 3 is the pushing moulding structural representation of calendering step of the present invention;
Fig. 4 is the structural representation of auxiliary agent removal of the present invention and cutting apparatus.
Embodiment
The present invention will be described in detail below in conjunction with the drawings and specific embodiments!
A kind of making method of teflon insulating self-adhesive tape,, it is by comprising what following making step was made:
One, the making of polytetrafluoroethyldispersion dispersion resin colour batch
1, pigment is mixed by 1: 0.8～1.2 weight ratio with dehydrated alcohol, continuously grinding took out after 20～24 hours then, sieved after 100～150 ℃ of dryings, and sieve is 300～500 orders.Wherein the preferred weight ratio of pigment and dehydrated alcohol is 1: 1.Mixed grinding can be to be placed in the corundum ball milling device, and compound must not surpass 1/3rd of container volume, otherwise will influence grinding effect.The index request of pigment wherein: (1), higher thermotolerance is arranged, 400 ℃ of following colour solid stable performances, lovely luster, colour-fast;
(2), require the purity height, particle is fine and smooth and evenly, good dispersity mixes easily; (3), tinting strength wants high, just can obtain tangible coloring effect with micro-.The present invention is the high temperature resistant mineral dye of energy preferably, can be cadmium red, cadmium yellow or phthalocyanine blue etc.Dehydrated alcohol requires: (1), look, flavor, attitude: water white transparency, liquid with peat-reek, (2), volatility: volatile, (3), solvability: can dissolve each other with any ratio with water, (4), boiling point: 78.5 ℃, (5), density: 0.7893, (6), specific refractory power: 1.3611 (20 ℃).
2, the pigment with above processing mixes by 1: 1.5～2.5 weight ratio with polytetrafluoroethyldispersion dispersion resin, makes the polytetrafluoroethyldispersion dispersion resin colour batch; The weight ratio that the pigment of handling mixes with polytetrafluoroethyldispersion dispersion resin is preferably 1: 2.In the process of mixing, preferably under 19～24 ℃ temperature environment, at first the pigment that will handle mixes by 1: 1.5～2.5 proportionings with the resin (crossing 50 mesh sieves) of pre-sieve, and the time of high-speed mixing must not surpass 30S at every turn, and purpose is to guarantee that pigment do not assemble agglomerating.Use this method, the pigment loss is few, and mixing uniformity is good, and equipment is simple, and production cost is low, and is easy to operate.For guaranteeing painted best effect and performance, described polytetrafluoroethyldispersion dispersion resin should satisfy following requirement: (1), degree of cleaning: excellent, (2), tensile strength (Mpa): 20～25, (3), elongation at break (%): 150～200, (4), water ratio (%):＜0.012, (5), particle diameter (um): 300～400; With before pigment mixes, earlier resin is sieved with 50 orders, to guarantee resin particle size dispersion and even.The preferred model of polytetrafluoroethyldispersion dispersion resin is the extrusion type high compression ratio polytetrafluoroethyldispersion dispersion resin of CGF268.
Two, batching
1, the polytetrafluoroethyldispersion dispersion resin colour batch that first step is obtained and polytetrafluoroethyldispersion dispersion resin are placed in the environment below 19 ℃ and deposited 20～24 hours, make raw material loose naturally, are convenient to sieve; Envrionment temperature is preferably at 0～19 ℃.
2, adding auxiliary agent earlier in polytetrafluoroethyldispersion dispersion resin, is to stir 5～10min under 15～20r/min auxiliary agent is evenly mixed with polytetrafluoroethyldispersion dispersion resin at rotating speed; The weight ratio of polytetrafluoroethyldispersion dispersion resin and auxiliary agent is 20～30: 100.For guaranteeing that finished product has excellent insulating property, described auxiliary agent is isoparaffin kind solvent oil ISOPAR G:(1), surface tension (N/m):＜23, (2), Nian Du @25 ℃ (mm2/s): 1.49, Mi Du @25 ℃ (Kg/dm3): 0.748.The requirement of auxiliary agent: (1), good lubricity is arranged is penetrated in the resin easily and goes; Chemical transformation does not take place during (2), with mixed with resin; (3), auxiliary agent is taking off when getting, and can all overflow, and do not leave any resistates that influences the products appearance quality and reduce product properties; (4), under the operating environment temperature, be not easy from prefabrication, to volatilize.Described auxiliary agent can select for use the Heyuan city to give birth to the emerging capable petrochemical industry production ISOPAR G of company limited.
3, in the above-mentioned polytetrafluoroethyldispersion dispersion resin that has added auxiliary agent and stirred, add the dispersion agent that accounts for gross weight 0.5～1%, be to stir 5～10min under 15～20r/min at rotating speed, obtain the polytetrafluoroethyldispersion dispersion resin compound; Dispersion agent makes the solid particles surface of cohesion form the bilayer structure, outer dispersion agent polar end and pigment have stronger avidity, make the solid particles surface of cohesion easily in moistening, make system even, suspension property increases, do not precipitate, it is the same to reach whole system physico-chemical property, the unlikely flocculation of pigment.Described dispersion agent can be Macrogol 200 or poly(oxyethylene glycol) 400, and dispersion agent should satisfy following requirement:
(1), dispersing agent performance is good, prevent from assembling mutually between the pigment particles, (2), suitable consistency is arranged with resin, pigment, good thermal stability, the good fluidity when (3), forming process does not cause color drift, (4), do not influence the performance of goods.
4, envrionment temperature control is that 10～20: 100 ratio is mixed in polytetrafluoroethyldispersion dispersion resin colour batch and the weight ratio of polytetrafluoroethyldispersion dispersion resin compound under 24 ± 2 ℃, can be to stir 5～10min under 15～20r/min at rotating speed in the process of mixing; The preferred weight ratio of polytetrafluoroethyldispersion dispersion resin colour batch and polytetrafluoroethyldispersion dispersion resin compound is 14～16: 100.
5, sieve at 20～30 mesh sieve, remove and stir conglomeration, the dead skin that may cause;
6, the compound that polytetrafluoroethyldispersion dispersion resin colour batch and polytetrafluoroethyldispersion dispersion resin compound are formed is poured in the proportion container and is sealed, and avoids the volatilization of boosting agent; And quiet putting 20～24 hours, the boosting agent is further fully permeated to resin;
7, the compound of the quiet polytetrafluoroethyldispersion dispersion resin colour batch of putting well and polytetrafluoroethyldispersion dispersion resin compound composition is sent into baking oven and carry out slaking, curing temperature is 50～70 ℃, time is 20～24 hours, purpose is: under certain temperature and time, make that resin is more even to absorb the boosting agent more fully, make boosting agent and mixed with resin more even.
Three, premolding
1, before pressing blank, should carry out the cleaning, clean of operating environment and mould, the dust suction to prevent that static from causing influences quality product;
2, the material chamber is heated, temperature is controlled at 50～60 ℃;
3, the material chamber of past premolding equipment adds the powder through slaking, should guarantee to feed in raw material evenly, and the feeding quantity of every base should be consistent;
4, through the powder of slaking at 25～30KG/CM
2About pressure under premolding, the speed of moulding is about 50～60 millimeters/minute, pressurize 1～2 minute is discharged to guarantee gas, base substrate does not ftracture, does not rupture, extrusion aid does not ooze out and is the best, in order to avoid influence quality of item.Preformed equipment can adopt hydraulic power unit, about the diameter little 1mm of the diameter in its blank chamber than pushing material chamber.As shown in Figure 1, powder (compound that polytetrafluoroethyldispersion dispersion resin colour batch and polytetrafluoroethyldispersion dispersion resin compound are formed) 21 through slaking is being expected in the cavity mould 22, by Upper gasket 23 and lower gasket 24 encapsulation, Upper gasket 23 is provided with dozen embryo piston 25 and suppresses.
5, for reaching good product properties, with the density control 1.3～1.5g/cm of base substrate
3About, the base substrate global density is even.
Four, pushing
1, carries out the cleaning, clean of operating environment and pushing mould earlier;
2, material chamber and a mouthful mould are heated, the temperature in material chamber is 40～50 ℃, and the temperature of mouthful mould is 50～60 ℃;
3, the compression ratio of employing 30～50 pushes; Compression ratio is the sectional area (S) in material chamber and the ratio of the sectional area (S ') of mouthful mould, R. (compression ratio)=S/S '=D
2/ d
2(to the circular port mould).Compression ratio is that an of paramount importance parameter is extruded in pushing.In general, the product of same specification, the ratio compression ratio that compression ratio is big is little better properties.But compression ratio is excessive during pushing, and the raw material bar is too hard, and the raw material band of making has slight crack and white point; Compression ratio is too little, and the hole of goods is many, and shrinking percentage can increase.As shown in Figure 2, compression ratio is the sectional area (S) in material chamber 1 and the ratio of the sectional area (S ') of mouthful mould 3; Be cone mould 2 between material chamber 1 and mouthful mould 3.
4, the cone angle of mould is selected 30～45 degree for use, and the effect of cone angle produces shearing and makes the resin particle fibrosis during pushing, is the good goods of final energy obtained performance, and this parameter is extremely important.
Five, calendering
Make the handful material with the pushing forming method, under the effect of roller pressure, roll into satisfactory strip along the action direction of power, then strip strip fiber being carried out two roll-ins prolongs, roller temperature control is at 50 ℃～70 ℃ during calendering, calender speed control is at 0.5～5m/min, the power that produces in the roller operation process makes fiber be oriented flat sheet prefabrication along working direction, and rolling is neat.As shown in Figure 3, the AB arc district of when thickness is first hot-rolling, 5, the second hot-rollings, 6 contacts of the handful material of h0 and rotation in opposite directions, being nipped, the material that begins from AB arc district is compressed gradually, becomes h1 by the thickness behind two rollers from h0.
Six, auxiliary agent is removed
Can adopt auxiliary agent to remove with cutting apparatus carries out.As shown in Figure 4, auxiliary agent is removed and cutting apparatus, include drying zone 36, apparatus for shaping 32 and cutting device 34, flat sheet prefabrication 10 enters drying zone 36 through drive roll 11 and removes the boosting agent, the temperature of drying zone 36 is divided into four sections generally 100-200 ℃ of scope: first section at 100 ℃, and second section at 150 ℃, the 3rd section at 180 ℃, and the 4th section at 200 ℃.Be provided with some guide reels in the drying zone 36, guide reel can be made up of first guide reel 12, second guide reel 13, the 3rd guide reel 14, the 4th guide reel 15 and the 5th guide reel 16, the 6th guide reel 17, the 7th guide reel 18, the 8th guide reel 19, the 94 guide reel 30 and the tenth guide reel 31, for guaranteeing that goods are stretched, reduce electrical property, the running speed unanimity of each roller; Enter then in the apparatus for shaping 32, apparatus for shaping 32 can be made up of two deflector rolls, and its running speed unanimity is because there is certain hole in the base band of removing after the boosting agent, purpose by apparatus for shaping 32 is to make fiber reorientation arrangement in the vertical, fills and leads up hole and improves insulating property; Last the 11 guide reel 33 enters cutting device 34 and cuts, and makes product by wrap-up 35 rollings at last.
The size of rolling tension force directly influences the quality of product, overtension, the rolling tension causes stretching easily, influences the electrical property of product, the tension force deficiency, product is easy to generate wrinkle, produces axial slip and serious dislocation at the core volume, can't unload volume so that cause, unreeling shaft produces swing significantly when cutting, and the quality of product is cut in influence.
For solving above problem, wrap-up 35 of the present invention comprises: (1), tension force measuring roll: the major parts of reasonable tension force when being the control rolling, to guarantee suitable rolling tension force; (2), nip rolls: eliminate some wrinkles that under the tensile stress effect, produce; (3), follow the tracks of roller: a tracking roller that can change the position is equipped with in the front at rolling volume core, it mainly acts on is that mould is leaned against on the rolling volume core, carry out contact rolling or the rolling of little gap, smooth product is promptly forwarded on the volume core, realize the purpose of smooth rolling, simultaneously, by following the tracks of roller parent roll is applied certain pressure, air when in time getting rid of rolling between rete is that parent roll does not fluff; (4), wind-up roll: driven the drive system networking that the Controlling System of rolling speed and auxiliary agent are removed by winding motor; (5), rotating disk and blank coil core: after product is rolled up a mandrel, do not allow to shut down more change of lap core, so rotating disk goes back to 180 degree, parent roll leaves out, and the blank coil core enters take-up position, cuts off film then, and film is attached on the new volume core, proceeds rolling.(6), tension control system: the swinging moment that adopts powder clutch control input wind-up roll, formed by active part and secondary part with the control scheme powder clutch that reaches tension stability, link to each other with wind-up roll by transmission rigs such as universal couplings, the centre is inserted fine ferromagnetic powder and is transmitted media as moment, magnetizing coil feeds certain electric current and forms magnetic field, magnetic is magnetized, magnetic after the magnetization is attracted each other and is formed the chain form arrangement, when active part rotates with constant speed, destroy the connection power between the magnetic chain and form the circumference tangential force, the product of this tangential force and magnetic circle radius is the swinging moment that drives the secondary part rolling, is implemented in the continuous rotation output torque is coupled to secondary part from active part.If given magnetizing current is constant, then export torque: M=r. ∑ T=constant, in the formula: r powder clutch magnetic circle radius, the tangential resistance of T magnetic chain formation, and tension force is: F=M/P=r. ∑ T/q, q is film volume radius, along with the increase gradually of q value, if torque M does not change, must cause tension force F to reduce, the change triggers sensing mechanism of tension force sends a feedback signal U2, is formed by stacking integrated signal Δ U increase (setting Δ U=U1U2) with giving signal U1, conversion through oversampling circuit, the output torque M is strengthened, and tension force F is remained unchanged, and reaches tension stability.
A kind of using method of teflon insulating self-adhesive tape, be stretched to 1～3 times of normality at normal temperatures with hand during use, belt body will become soft and produce self-adhesion and sticking power, then an end that stretches is ridden on the conductor tab and pin, after some numbers of plies are twined in the tension of conductor head, make belt body be close to joint and firmly one draw along direction, smooth out with the fingers tightly with the suitable steering handle fracture of hand again and get final product.
Tetrafluoroethylene self-adhesive tape of the present invention does not contain any glue paste, does not have autohension before using, and stretches 1～3 times during use, just has good autohension, between adhesive tape layer, the port bonding is reliable.During concrete operation according to the size of joint, get the tetrafluoroethylene self-adhesive tape of respective length, with hand certain multiple that stretches at normal temperatures, belt will become soft and produce magical self-adhesion and sticking power, and an end that stretches is ridden on the joint, and left hand is pinned, the right hand is counterclockwise strained the winding joint, after twining the suitable number of plies, firmly one draw with a hand-tight suitable direction of amplexiforming, smooth out with the fingers tightly with the suitable steering handle fracture of hand again and get final product.
After testing, tetrafluoroethylene self-adhesive tape stretching voltage-withstand test data such as following table:
| Draw ratio | Withstand voltage (KV/mm) |
| 1 | 9060 |
| 2 | 7000 |
| 3 | 5170 |
| Ultimate elongation | 2860 |
The present invention is not limited to above-mentioned embodiment, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, if these are changed and modification belongs within claim of the present invention and the equivalent technologies scope, then the present invention also comprises these changes and modification.
Claims (2)
1. a teflon insulating self-adhesive tape is characterized in that, it is by comprising what following making step was made:
One, the making of polytetrafluoroethyldispersion dispersion resin colour batch
(1), pigment is mixed by the weight ratio of 1:0.8～1.2 with dehydrated alcohol, grind then;
(2), the pigment of above processing is mixed by the weight ratio of 1:1.5～2.5 with polytetrafluoroethyldispersion dispersion resin, make the polytetrafluoroethyldispersion dispersion resin colour batch; Pigment and polytetrafluoroethyldispersion dispersion resin are blended under 19～24 ℃ the temperature environment and carry out, and the time of mixing is in 30s; Polytetrafluoroethyldispersion dispersion resin was the polytetrafluoroethyldispersion dispersion resin behind 50 mesh sieves;
Two, batching
(1), the polytetrafluoroethyldispersion dispersion resin colour batch that first step is obtained and polytetrafluoroethyldispersion dispersion resin are placed in the environment below 19 ℃ and deposited 20～24 hours;
(2), elder generation adds auxiliary agent in polytetrafluoroethyldispersion dispersion resin, be to stir 5～10min under 15～20r/min auxiliary agent is evenly mixed with polytetrafluoroethyldispersion dispersion resin at rotating speed; The weight ratio of polytetrafluoroethyldispersion dispersion resin and auxiliary agent is 20～30:100;
(3), in the above-mentioned polytetrafluoroethyldispersion dispersion resin that has added auxiliary agent and stirred, add the dispersion agent account for gross weight 0.5～1%, be to stir 5～10min under 15～20r/min at rotating speed, obtain the polytetrafluoroethyldispersion dispersion resin compound;
(4), envrionment temperature control is in 22～26 ℃ of scopes, be that the ratio of 10～20:100 is mixed in polytetrafluoroethyldispersion dispersion resin colour batch and the weight ratio of polytetrafluoroethyldispersion dispersion resin compound, the process of mixing is to stir 5～10min under 15～20r/min at rotating speed;
(5), sieve with 20～30 mesh sieve;
(6), the compound that polytetrafluoroethyldispersion dispersion resin colour batch and polytetrafluoroethyldispersion dispersion resin compound are formed is poured in the proportion container and is sealed; And quiet putting 20～24 hours;
(7), compound that the quiet polytetrafluoroethyldispersion dispersion resin colour batch of putting well and polytetrafluoroethyldispersion dispersion resin compound are formed sends into baking oven and carries out slaking, curing temperature is 50～70 ℃, the time is 20～24 hours;
Wherein, to select model for use be the extrusion type high compression ratio polytetrafluoroethyldispersion dispersion resin of CGF268 to described polytetrafluoroethyldispersion dispersion resin;
Described pigment is cadmium red, cadmium yellow or phthalocyanine blue;
Described auxiliary agent is isoparaffin kind solvent oil ISOPAR G;
Described dispersion agent is Macrogol 200 or poly(oxyethylene glycol) 400.
2. a kind of teflon insulating self-adhesive tape as claimed in claim 1 is characterized in that: described grinding is continuously grinding in corundum ball milling device 20～24 hours, takes out then and sieves after 100～150 ℃ of dryings, and sieve is 300～500 orders.
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| CN 201010216376 CN101921553B (en) | 2010-07-02 | 2010-07-02 | Teflon insulating self-adhesive tape and application method thereof |
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| CN 201010216376 CN101921553B (en) | 2010-07-02 | 2010-07-02 | Teflon insulating self-adhesive tape and application method thereof |
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| CN103087645A (en) * | 2012-11-08 | 2013-05-08 | 无锡昆成新材料科技有限公司 | Method for producing isolation rubber compound type insulating self-adhesive tape |
| CN110066610A (en) * | 2019-04-24 | 2019-07-30 | 黄山美澳复合材料有限公司 | A kind of Teflon colour glass cloth rubber belt and preparation method thereof |
| CN115747995B (en) * | 2022-11-30 | 2023-08-22 | 江苏金由新材料有限公司 | Preparation method of colored polytetrafluoroethylene fiber, fiber and fiber product |
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|---|---|---|---|---|
| US5107076A (en) * | 1991-01-08 | 1992-04-21 | W. L. Gore & Associates, Inc. | Easy strip composite dielectric coaxial signal cable |
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| CN101921553A (en) | 2010-12-22 |
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