CN101705059A - Making method of non-inflammable self-adhesion insulation tape - Google Patents
Making method of non-inflammable self-adhesion insulation tape Download PDFInfo
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- CN101705059A CN101705059A CN200910213876A CN200910213876A CN101705059A CN 101705059 A CN101705059 A CN 101705059A CN 200910213876 A CN200910213876 A CN 200910213876A CN 200910213876 A CN200910213876 A CN 200910213876A CN 101705059 A CN101705059 A CN 101705059A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000009413 insulation Methods 0.000 title claims abstract description 31
- 239000006185 dispersion Substances 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 36
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- 238000009835 boiling Methods 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000000049 pigment Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000009417 prefabrication Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000012153 distilled water Substances 0.000 claims description 7
- 239000012046 mixed solvent Substances 0.000 claims description 7
- 238000003490 calendering Methods 0.000 claims description 6
- 230000035800 maturation Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 210000001161 mammalian embryo Anatomy 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 abstract description 6
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007800 oxidant agent Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- -1 polytetrafluoroethylene Polymers 0.000 abstract 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 2
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 2
- 239000003380 propellant Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000007858 starting material Substances 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 239000011163 secondary particle Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229940043232 butyl acetate Drugs 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Abstract
The invention relates to a making method of a non-inflammable self-adhesion insulation tape. The making method comprises the following steps: by making colored polytetrafluoroethylene dispersion resin, sieving the colored polytetrafluoroethylene dispersion resin after cold storage, then mixing with propellant as paste shape and finally making the insulation tape through the steps of curing, preforming, thrusting, rolling, removing the propellant and the like. The made non-inflammable self-adhesion insulation tape is excellent in comprehensive performance with limited oxygen index up to over 95 and has non-flammable property, volume resistance no less than 1 multiplied by 1, 017 ohm/cm, good insulating performance, good self-adhesion without use of pressure sensitive adhesive, reliable adhesion between tape layers and at a port, water absorption rate less than 0.01 percent and good moisture resistance. The insulation tape can be used within the temperature range of -65-250 DEGC for long time with the dielectric strength not less than 40kV/mm, can resist strong acid, alkali and oxidant, is an ideal insulating material and promotes the replacement of insulating materials of traditional electrician equipment with new generations.
Description
Technical field
The present invention relates to a kind of insulation tape, be specially a kind of making method of non-inflammable self-adhesion insulation tape.
Background technology
Insulation tape refers to specially that the electrician uses is used to prevent electric leakage, plays the adhesive tape of insulating effect, is applicable to the plugging into of electric wire, electric insulation protection.The present widely used insulation tape of forming by polyvinyl chloride base band and pressure-sensitive adhesive layer, and this kind insulation tape has the following disadvantages: 1, the flame resistivity of polyvinyl chloride is poor, and fire-retardant value only is 40; 2, temperature tolerance is poor, and softening temperature is 80 ℃, begins to decompose variable color in 130 ℃; 3, ageing resistance is poor, autocatalytically decomposition easily, variable color, and physical and mechanical properties and insulating property descend rapidly.4, has certain resistance to chemical corrosion, but a rather unstable, 5, pressure sensitive adhesive is aging easily, causes the insulation layer parcel to unclamp.
The development of insulation tape and the level of exploitation are one of keys of influence restriction electrotechnology development, therefore have high pressure resistant, high-low temperature resistant, corrosion-resistant, the insulation tape that excellent properties such as do not fire, are the needs of insulation industry historical development trend.The teflon insulation adhesive tape can remedy the defective of above-mentioned insulation tape.But have the color separation needs of different purposes as insulation paste, and tetrafluoroethylene having not viscosity, is unusual difficulty so make it painted.Traditional method is to adopt polytetrafluoroethyldispersion dispersion resin and pigment to be formed by directly mixing colored polytetrafluoroethyldispersion dispersion resin, but it is inhomogeneous that this kind mode is mixed, cause the arbitrary component conglomeration of resin and pigment or disperse uneven, the product of making can form that the resin network is discontinuous, the phenomenon of pigment concentration of local, directly influences the insulating property of finished product.
Summary of the invention
The objective of the invention is deficiency at the above insulation tape existence, give full play to the characteristic of tetrafluoroethylene, provide a kind of making method, for electrical isolation provides utmost point desirable material with good electric insulativity, proof voltage, high-low temperature resistant, ageing-resistant, a kind of non-inflammable self-adhesion insulation tape of excellent performance such as not firing.
The present invention is achieved in that a kind of making method of non-inflammable self-adhesion insulation tape, and it making step that comprises is as follows:
One, the making of polytetrafluoroethyldispersion dispersion resin
With concentration be 60%, pH value is that 7～10 polytetrafluoroethyldispersion dispersion 100～140 parts by weight, distilled water 140～180 parts by weight, high boiling solvent 20～35 parts by weight and pigment 8～14 parts by weight add in the mixing tank and stir, add the mixed solvent of forming by water 70～90 parts by weight and acetone 50～80 parts by weight then and carry out condensation; By condensation, 0.1～0.2 micron primary particles aggregate become 450 microns secondary particle, at last condensate is filtered and under 90～130 ℃ temperature, carry out drying, promptly make colored polytetrafluoroethyldispersion dispersion resin, the resin color homodisperse that present method makes, electrical property is splendid, and its viscosity also promotes 50% than common polytetrafluoroethyldispersion dispersion resin.
Two, paste shape moulding
1, the colored polytetrafluoroethyldispersion dispersion resin that obtains more than the general refrigerates 20～24h at 8～15 ℃, at dust-free workshop raw material is sieved with 8～10 purpose sieves then, to stop the influence of dust to electrical property.
2, colored polytetrafluoroethyldispersion dispersion resin and the boosting agent after will sieving is mixed into the paste shape, leaves standstill 10～15 (12) h; The parts by weight proportioning of colored polytetrafluoroethyldispersion dispersion resin and boosting agent is: colored polytetrafluoroethyldispersion dispersion resin 60～90, boosting agent 20～30. described boosting agent can be for taking off aromatic hydrocarbon solvent oil EXXSOL D60.
3, leave standstill after, compound is stirred, rotating speed is 15～20r/min, the time is 10～20min; Make boosting agent and starting material uniform mixing.
4, the raw material that stirs leaves standstill 10～12h, and the boosting agent is permeated to starting material, carries out maturation process at 50 ℃～70 ℃ then, and the time is 20～24h; Maturation process can be to carry out slaking in baking oven, and the purpose of slaking is to make the boosting agent to further fully infiltration of starting material by heating.
5, be 2.5～3.8Mpa at pressure; Compression speed is 45～75mm/min, and the dwell time is premolding under 1～8min, makes blank; Preformed equipment can be hydraulic power unit, about the diameter little 1mm of the diameter in its blank chamber than pushing material chamber.
6, blank is pushed, through cutting into fibre strip; A pushing mouthful mould material cavity temperature is controlled at 50 ℃～70 ℃, and the cone angle of the pushing mould that pushes is 30～45 degree, and compression ratio is 80～130; Wherein, compression ratio is the sectional area (S) in material chamber and the ratio of the sectional area (S ') of mouthful mould.
7, fibre strip is carried out two roll-ins and prolong, roller temperature is controlled at 50 ℃～70 ℃ during calendering, and calender speed is controlled at 0.5～5m/min, and the power that produces in the roller operation process makes fiber be oriented flat sheet prefabrication along working direction, and rolling is neat;
8, the boosting agent in the flat sheet prefabrication of making through calendering is removed, temperature is controlled at 100～200 ℃, and too high temperature can cause the finished product to lose autohension.
The non-inflammable self-adhesion insulation tape over-all properties that the present invention adopts unique making method to make is superior, and limited oxygen index has uninflammability more than 95; Volume resistance 〉=1 * 10
17Ohmcm, insulating property are good; Do not use pressure sensitive adhesive agent, self just has good autohension, between adhesive tape layer, port bonding is reliable; Water-intake rate＜0.01%, humidity resistance is good; Can be at～65 ℃～250 ℃ temperature range life-time service; Dielectric strength 〉=40kV/mm, anti-strong acid, highly basic, strong oxidizer are a kind of ideal insulating material, will promote the update of traditional electrical construction equipment insulating material.
Description of drawings
Fig. 1 is the structural representation of boosting agent removal of the present invention and cutting apparatus;
Fig. 2 is the structural representation of preformed equipment of the present invention.
Embodiment
The present invention will be described in detail below in conjunction with the drawings and specific embodiments.
One, the making of painted polytetrafluoroethyldispersion dispersion resin
With stirring in polytetrafluoroethyldispersion dispersion 100～140 parts by weight, distilled water 140～180 parts by weight, high boiling solvent 20～35 parts by weight and pigment 8～14 parts by weight adding mixing tank, add the mixed solvent of forming by water 70～90 parts by weight and acetone 50～80 parts by weight then and carry out condensation; By condensation, 0.1～0.2 micron primary particles aggregate become 450 microns secondary particle, at last condensate is filtered and under 90～130 ℃ temperature, carry out drying, promptly make colored polytetrafluoroethyldispersion dispersion resin, the resin color homodisperse that present method makes, electrical property is splendid, and its viscosity also promotes 50% than common polytetrafluoroethyldispersion dispersion resin.
More than the making method of painted polytetrafluoroethyldispersion dispersion resin can be: polytetrafluoroethyldispersion dispersion 100 parts by weight, distilled water 140 parts by weight, high boiling solvent 20 parts by weight and pigment 8 parts by weight are added in the mixing tank stir, add the mixed solvent of forming by water 70 parts by weight and acetone 50 parts by weight then and carry out condensation; At last condensate is filtered and under 90 ℃ temperature, carries out drying, promptly make colored polytetrafluoroethyldispersion dispersion resin.
More than the making method of painted polytetrafluoroethyldispersion dispersion resin can be: polytetrafluoroethyldispersion dispersion 140 parts by weight, distilled water 80 parts by weight, high boiling solvent 35 parts by weight and pigment 14 parts by weight are added in the mixing tank stir, add the mixed solvent of forming by water 90 parts by weight and acetone 80 parts by weight then and carry out condensation; At last condensate is filtered and under 130 ℃ temperature, carry out drying, promptly make colored polytetrafluoroethyldispersion dispersion resin.
Preferably, with 125 parts by weight, distilled water 167 parts by weight, high boiling solvent 25 parts by weight, pigment 10 parts by weight add stirring in the mixing tank, add the mixed solvent of being made up of water 83 parts by weight and acetone 66 parts by weight then and carry out condensation; By condensation, last again condensate filtered and under 110 ℃ temperature, carry out drying, promptly make colored polytetrafluoroethyldispersion dispersion resin.
The concentration of polytetrafluoroethyldispersion dispersion is 60%, pH value is 7～10, the polytetrafluoroethyldispersion dispersion that can adopt the model DF302 of Shandong Dongyue Polymer Material Co., Ltd. to produce.The high boiling solvent DBE that high boiling solvent can adopt sharp Chinese workers company limited of Weifang City, Shandong unit to produce, the index of high boiling solvent DBE is: ester content: 〉=99, outward appearance: colourless transparent liquid, water-content: density g/ml (20 ℃)≤0.1%: 1.08～1.096, acid number mgKOH/g :≤0.15, viscosity cps (25 ℃): 2.4, boiling range: 195～230 ℃.
The index request of pigment: (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-.
Two, paste shape moulding
Because the tetrafluoroethylene molecular structure is the straight chain type thermoplastic high molecular compound, even be heated to the above temperature of fusing point, can only form the gel state of no crystalloid, so can not adopt the method for melt processing of common plastics, the present invention adopts unique paste shape moulding process to make:
1, colored polytetrafluoroethyldispersion dispersion resin is refrigerated 20～24h at 8～15 ℃, at dust-free workshop raw material is sieved with 8～10 purpose sieves then, to stop the influence of dust to electrical property;
2, colored polytetrafluoroethyldispersion dispersion resin and the boosting agent after will sieving is mixed into the paste shape, leaves standstill 10～15h, preferably 12h; The weight part proportioning of colored polytetrafluoroethyldispersion dispersion resin and boosting agent is: colored polytetrafluoroethyldispersion dispersion resin 60～90, boosting agent 20～30; The weight part proportioning of preferred colored polytetrafluoroethyldispersion dispersion resin and boosting agent is: colored polytetrafluoroethyldispersion dispersion resin 70, boosting agent 25.The requirement of described boosting 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), the boosting 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.Preferentially select for use and take off aromatic hydrocarbon solvent oil for satisfying above-mentioned requirements: EXXSOL D60.The index request of solvent oil: initial boiling point: 185 ℃, full boiling point: 199 ℃, Mi Du @15 ℃ (kg/dm3): 0.764, Nian Du @25 ℃ (mm2/s): 1.6, relative evaporation rate (butylacetate=100): 4, Kauri-butanol value: 26, aniline point: 82, aromatic content (%):＜0.5, color (Saybolt colour) :+30, bromine number (mg Br/100g):＜10, Biao Mianzhangli @25 ℃ (mN/m): 24, Zhe Sheshuai @20 ℃: 1.426.
3, leave standstill after, compound is stirred, rotating speed is 15～20r/min, the time is 10～20min; Make boosting agent and starting material uniform mixing.
4, the raw material that stirs leaves standstill 10～12h, and the boosting agent is permeated to starting material, carries out maturation process at 50 ℃～70 ℃ then, and the time is 20～24h; Maturation process can be to carry out slaking in baking oven, and the purpose of slaking is to make the boosting agent to further fully infiltration of starting material by heating.
5, be 2.5～3.8Mpa at pressure; Compression speed is 45～75mm/min, and the dwell time is to make blank under 1～8min; Preformed equipment can be hydraulic power unit, about the diameter little 1mm of the diameter in its blank chamber than pushing material chamber.As shown in Figure 2, raw material 21 by Upper gasket 23 and lower gasket 24 encapsulation, is pressed with dozen embryo piston 25 and suppresses in material cavity mould 22 on Upper gasket 23.
6, blank is pushed, through cutting into fibre strip; A pushing mouthful mould material cavity temperature is controlled at 50 ℃～70 ℃, and the cone angle of the pushing mould that pushes is 30～45 degree, and compression ratio is 80～130; Wherein, compression ratio is the sectional area (S) in material chamber and the ratio of the sectional area (S ') of mouthful mould.
7, fibre strip is carried out two roll-ins and prolong, roller temperature is controlled at 50 ℃～70 ℃ during calendering, and calender speed is controlled at 0.5～5m/min, and the power that produces in the roller operation process make fiber be oriented flat sheet prefabrication along working direction, and rolling is neat;
8, the boosting agent in the flat sheet prefabrication of making through calendering is removed, temperature is controlled at 100～200 ℃, and too high temperature can cause the finished product to lose autohension.
Described boosting agent is removed and can be realized by boosting agent removal and cutting apparatus, as shown in Figure 1, boosting agent removal and cutting apparatus, include drying zone B, apparatus for shaping C and cutting device D, flat sheet prefabrication A enters drying zone B district through drive roll 1 and removes the boosting agent, be provided with some guide reels in the drying zone B, guide reel can be made up of first guide reel 2, second guide reel 3, the 3rd guide reel 4, the 4th guide reel 5 and the 5th guide reel, the 6th guide reel 7, the 7th guide reel 8, the 8th guide reel the 9, the 94 guide reel 10 and the tenth guide reel 11; Enter then among the apparatus for shaping C, apparatus for shaping C 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 C is to make fiber reorientation arrangement in the vertical, fills and leads up hole and improves insulating property; Last the 11 guide reel 12 enters cutting device D and cuts, and makes product by wrap-up E rolling at last.
The non-inflammable self-adhesion insulation tape over-all properties that the present invention adopts unique making method to make is superior, and limited oxygen index has uninflammability more than 95; Volume resistance 〉=1 * 10
17Ohmcm, insulating property are good; Do not use pressure sensitive adhesive agent, self just has good autohension, between adhesive tape layer, port bonding is reliable; Water-intake rate＜0.01%, humidity resistance is good; Can be at～65 ℃～250 ℃ temperature range life-time service; Dielectric strength 〉=40kV/mm, anti-strong acid, highly basic, strong oxidizer are a kind of insulating material of absolute ideal, have promoted the update of traditional electrical construction equipment insulating material.
Claims (7)
1. the making method of a non-inflammable self-adhesion insulation tape is characterized in that, it making step that comprises is as follows:
One, the making of painted polytetrafluoroethyldispersion dispersion resin
With stirring in polytetrafluoroethyldispersion dispersion 100～140 parts by weight, distilled water 140～180 parts by weight, high boiling solvent 20～35 parts by weight and pigment 8～14 parts by weight adding mixing tank, add the mixed solvent of forming by water 70～90 parts by weight and acetone 50～80 parts by weight then and carry out condensation; At last condensate is filtered, and under 90～130 ℃ temperature, carry out drying, promptly make colored polytetrafluoroethyldispersion dispersion resin;
Two, paste shape moulding
1), will more than the colored polytetrafluoroethyldispersion dispersion resin that obtains refrigerate 20～24h at 8～15 ℃, at dust-free workshop raw material is sieved with 8～10 purpose sieves then;
2), colored polytetrafluoroethyldispersion dispersion resin and boosting agent after will sieving be mixed into the paste shape, leaves standstill 10～15h; The parts by weight proportioning of colored polytetrafluoroethyldispersion dispersion resin and boosting agent is: colored polytetrafluoroethyldispersion dispersion resin 60～90, boosting agent 20～30;
3), leave standstill after, compound is stirred, rotating speed is 15～20r/min, the time is 10～20min;
4), the raw material that stirs, leave standstill 10～12h, carry out maturation process at 50 ℃～70 ℃ then, the time is 20～24h;
5), be 2.5～3.8Mpa at pressure, compression speed is 45～75mm/min, the dwell time is premolding under 1～8min, makes blank;
6), blank is pushed, through cutting into fibre strip;
7), fibre strip carried out two roll-ins prolong, roller temperature is controlled at 50 ℃～70 ℃ during calendering, calender speed is controlled 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;
8), to removing through the boosting agent in the flat sheet prefabrication made of calendering, temperature is controlled at 100～200 ℃.
2. the making method of a kind of non-inflammable self-adhesion insulation tape as claimed in claim 1, it is characterized in that: in described (one) step, with 125 parts by weight, distilled water 167 parts by weight, high boiling solvent 25 parts by weight, pigment 10 parts by weight add stirring in the mixing tank, add the mixed solvent of being made up of water 83 parts by weight and acetone 66 parts by weight then and carry out condensation; By condensation, last again condensate filtered and under 110 ℃ temperature, carry out drying, promptly make colored polytetrafluoroethyldispersion dispersion resin.
3. the making method of a kind of non-inflammable self-adhesion insulation tape as claimed in claim 1 is characterized in that: the concentration of described polytetrafluoroethyldispersion dispersion is 60%, pH value is 7～10.
4. the making method of a kind of non-inflammable self-adhesion insulation tape as claimed in claim 1 is characterized in that: described boosting agent is for taking off aromatic hydrocarbon solvent oil EXXSOL D60.
5. the making method of a kind of non-inflammable self-adhesion insulation tape as claimed in claim 1, it is characterized in that: described maturation process is to carry out slaking in baking oven.
6. the making method of a kind of non-inflammable self-adhesion insulation tape as claimed in claim 1, it is characterized in that: described preformed equipment is hydraulic power unit, raw material is in the material cavity mould, by Upper gasket and lower gasket encapsulation, be pressed with dozen embryo piston and suppress on Upper gasket, the diameter in its material cavity mould is than the little 1mm of diameter in pushing material chamber.
7. the making method of a kind of non-inflammable self-adhesion insulation tape as claimed in claim 1, it is characterized in that: described boosting agent is removed by boosting agent removal and cutting apparatus and is realized, described boosting agent removal and cutting apparatus include drying zone, apparatus for shaping and cutting device, flat sheet prefabrication enters the agent of dry trivial removal boosting through drive roll, enter in the apparatus for shaping then, enter cutting device at last and cut, make product by the wrap-up rolling at last.
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| CN101921553A (en) * | 2010-07-02 | 2010-12-22 | 四会市封王氟塑有限公司 | Teflon insulating self-adhesive tape and application method thereof |
| CN103081030A (en) * | 2010-07-02 | 2013-05-01 | 三品高性能塑料制品控股公司 | PTFE material having an anti-corona effect |
| US10998488B2 (en) | 2012-10-31 | 2021-05-04 | Valqua, Ltd. | Piezoelectric stack |
| CN115747995A (en) * | 2022-11-30 | 2023-03-07 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2275930B (en) * | 1993-03-10 | 1995-10-25 | Coates Brothers Plc | Dispersion |
| CN101597379B (en) * | 2009-04-24 | 2012-05-23 | 四会市生料带厂有限公司 | Manufacturing method of colored polytetrafluoroethylene (PTFE) thread seal tape for winding and sintering |
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2009
- 2009-12-15 CN CN200910213876A patent/CN101705059B/en active Active
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| CN101921553A (en) * | 2010-07-02 | 2010-12-22 | 四会市封王氟塑有限公司 | Teflon insulating self-adhesive tape and application method thereof |
| CN103081030A (en) * | 2010-07-02 | 2013-05-01 | 三品高性能塑料制品控股公司 | PTFE material having an anti-corona effect |
| CN101921553B (en) * | 2010-07-02 | 2013-09-04 | 肇庆市大旺台旺门窗厂 | Teflon insulating self-adhesive tape and application method thereof |
| CN103081030B (en) * | 2010-07-02 | 2016-05-11 | 三品高性能塑料制品控股公司 | There is the PTFE material of anticorona effect |
| US9728299B2 (en) | 2010-07-02 | 2017-08-08 | Produits Plastiques Performants Holding—3P Holding | PTFE material having an anti-corona effect |
| US10998488B2 (en) | 2012-10-31 | 2021-05-04 | Valqua, Ltd. | Piezoelectric stack |
| CN115747995A (en) * | 2022-11-30 | 2023-03-07 | 江苏金由新材料有限公司 | Preparation method of colored polytetrafluoroethylene fiber, fiber and fiber product |
| 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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| Publication number | Publication date |
|---|---|
| CN101705059B (en) | 2012-10-17 |
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