CN103514978A - Double-faced organic silicon polyimide film dry mica paper tape and preparation method thereof - Google Patents

Double-faced organic silicon polyimide film dry mica paper tape and preparation method thereof Download PDF

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Publication number
CN103514978A
CN103514978A CN201310479236.3A CN201310479236A CN103514978A CN 103514978 A CN103514978 A CN 103514978A CN 201310479236 A CN201310479236 A CN 201310479236A CN 103514978 A CN103514978 A CN 103514978A
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CN
China
Prior art keywords
polyimide film
mica paper
mica
tape
additive
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Pending
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CN201310479236.3A
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Chinese (zh)
Inventor
唐崇书
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YANGZHOU XIN-QI-TE CABLE MATERIAL CO LTD
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YANGZHOU XIN-QI-TE CABLE MATERIAL CO LTD
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Priority to CN201310479236.3A priority Critical patent/CN103514978A/en
Publication of CN103514978A publication Critical patent/CN103514978A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a cable fire-resistant insulation material, and particularly relates to a double-faced organic silicon polyimide film dry mica paper tape which comprises mica paper and polyimide films. The polyimide films are arranged on upper and lower surfaces of the mica paper. The mica paper and the polyimide films on upper and lower surfaces are bonded together through glue materials. Each glue material consists of organic silicon resin, a modified additive, an additive, toluene and ethyl acetate. The weight ratio of the organic silicon resin, the modified additive, the additive, the toluene to the ethyl acetate is 10:0.6:0.24:18:12. The glue material content in the mica tape is 3 to 9 g/square meter. The thickness of the mica paper is 0.035 to 0.065mm. The thickness of each polyimide film is 0.03 to 0.035mm. The preparation method of the double-faced organic silicon polyimide film dry mica paper tape has the steps of glue material configuring, dip coating, compositing, drying, cooling, rewinding and slitting. The product has the advantages of easy manufacture, good fire-resistant insulation performance, strong shock-resistant performance and low processing cost.

Description

Two-sided organic silicon polyimide film dry mica paper tape and preparation method thereof
Technical field
The present invention relates to a kind of cable refractory insulating material, be specifically related to a kind of two-sided organic silicon polyimide film dry mica paper tape and preparation method thereof.
Background technology
Economic fast development, the market demand of cable grows with each passing day.And commonly use refractory insulating material in cable production, be mica tape, the quality of refractory insulating material directly or indirectly affects the serviceability of cable.Mica tape is a kind of main insulation material, how many mica tapes is divided into resin-rich mica tape and low resin mica tape according to adhesive content, wherein resin-rich mica tape refers to that adhesive content is at more than 35% mica tape, the part by hydraulic pressure or mould pressing process as motor insulation structure; Low resin mica tape refers to the mica tape that adhesive content is very low, becomes a part for motor insulation structure through vacuum pressure impregnation (VPI) technique.The motor insulation structure that the resin-rich mica tape of take is main body, its mica content is lower, and electric property, overall performance and hot performance are poor, can not meet motor in the requirement in voltage levels, large capacity evolution.And using low resin mica tape as the motor insulation structure of main body, in conjunction with VPI technique, for motor provides good insulation property, as insulating material of new generation, be subject to extensive concern.For the trend of current rail high speed, heavy duty development, realizing locomotive traction motor high-power, miniaturization and and raising running reliability of motor has become important topic, and the insulation system of motor is one of key realizing above-mentioned target.But existing low resin mica tape can not satisfy the demands, therefore, need a kind of new mica tape and preparation method thereof.
Summary of the invention
The object of this invention is to provide a kind of two-sided organic silicon polyimide film dry mica paper tape and preparation method thereof, this production is easy to manufacture, and hot-face insulation performance is good, and shock resistance is strong, and processing cost is low.
The two-sided organic silicon polyimide film of the present invention dry mica paper tape, it is characterized in that, described mica tape comprises mica paper and polyimide film, polyimide film is arranged on mica paper upper and lower surface, the polyimide film of mica paper and its upper and lower surface is bonded together by sizing material, described sizing material comprises organic siliconresin, modified additive, additive, toluene and ethyl acetate, organic siliconresin, modified additive, additive, the ratio of the weight of toluene and ethyl acetate is 10:0.6:0.24:18:12, in described mica tape, the unit are grammes per square metre of sizing material is 3-9 g/ ㎡, described mica paper thickness is 0.035-0.065mm, and polyimide film thickness is 0.03-0.035mm.
The preparation method of the two-sided organic silicon polyimide film of the present invention dry mica paper tape, comprises the following steps:
(1) by cooling acquisition sizing material after organic siliconresin, modified additive, additive, toluene, ethyl acetate and emulsifying dispersant mix and blend, sizing material is placed in to glue groove, mixing time 1-2 hour; The ratio of the weight of described organic siliconresin, modified additive, additive, toluene and ethyl acetate is 10:0.6:0.24:18:12;
(2), by the thick polyimide film uncoiling of 0.03-0.035mm, cross the glue groove that dipping sizing material is housed;
(3) by wide cut compounding machine, undertaken compound, the thick mica paper uncoiling of 0.035-0.065mm is simultaneously attached on the polyimide film that applies sizing material, mica paper another side is combined with each other with the polyimide film of another layer of coating sizing material again, forms two-sided mica tape germ band;
(4) preheating is carried out in two-sided mica tape germ band, preheat temperature is 70-75 ℃; Mica tape germ band after preheating is by the baking oven of wide cut compounding machine, baking oven one, two, the temperature in San, 4th district is respectively 60-65 ℃, 50-55 ℃, 60-65 ℃, 60-65 ℃;
(5) go out the mica tape germ band cooling 7-8min in air at room temperature after baking oven, carry out rolling after cooling;
(6) the mica tape germ band after rolling cuts into banded and rolling by cutting machine, obtains two-sided mica tape.
Preferably, described in step (3), the width of wide cut compounding machine is 1100mm.
Compared with prior art, the present invention has following beneficial effect: first, preheating is carried out in two-sided mica tape germ band, drying and processing is carried out by the baking oven of wide cut compounding machine in mica tape germ band, baking oven one, two, the temperature in San, 4th district is respectively 60-65 ℃, 50-55 ℃, 60-65 ℃, 60-65 ℃; And then cooling, rolling, cut, the two-sided mica tape flexibility making is good, and Wrapping technical is good, and gas permeability is high, and hot-face insulation is good, and production cost is low, saves the energy; The second, by cooling, rolling, form the not aluminium-plastic tape of self-adhesion of interlayer, in cutting process, rolling is wanted closely, to guarantee without burr, without burr, surfacing is clean; The 3rd, the fire-resistant intensity of mica tape and stretching toughness are high, easy fracture, loosening not, and unstable product quality, has reduced processing cost.
Embodiment
An organic silicon polyimide film dry mica paper tape, comprises mica paper and polyimide film.Polyimide film is arranged on mica paper upper and lower surface.Mica paper thickness is 0.035-0.065mm, and polyimide film thickness is 0.03-0.035mm.
The polyimide film of mica paper and its upper and lower surface is bonded together by sizing material.Sizing material comprises organic siliconresin, modified additive, additive, toluene and ethyl acetate, and the ratio of the weight of organic siliconresin, modified additive, additive, toluene and ethyl acetate is 10:0.6:0.24:18:12.In mica tape, the unit are grammes per square metre of sizing material is 3-9 g/ ㎡.
The preparation method of above-mentioned two-sided organic silicon polyimide film dry mica paper tape, comprises the following steps:
(1) by cooling acquisition sizing material after organic siliconresin, modified additive, additive, toluene, ethyl acetate and emulsifying dispersant mix and blend, sizing material is placed in to glue groove, mixing time 1-2 hour; The ratio of the weight of described organic siliconresin, modified additive, additive, toluene and ethyl acetate is 10:0.6:0.24:18:12;
(2), by the thick polyimide film uncoiling of 0.03-0.035mm, cross the glue groove that dipping sizing material is housed;
(3) by wide cut compounding machine, undertaken compound, the thick mica paper uncoiling of 0.035-0.065mm is simultaneously attached on the polyimide film that applies sizing material, mica paper another side is combined with each other with the polyimide film of another layer of coating sizing material again, forms two-sided mica tape germ band;
(4) preheating is carried out in two-sided mica tape germ band, preheat temperature is 70-75 ℃; Mica tape germ band after preheating is by the baking oven of wide cut compounding machine, baking oven one, two, the temperature in San, 4th district is respectively 60-65 ℃, 50-55 ℃, 60-65 ℃, 60-65 ℃;
(5) go out the mica tape germ band cooling 7-8min in air at room temperature after baking oven, carry out rolling after cooling;
(6) the mica tape germ band after rolling cuts into banded and rolling by cutting machine, obtains two-sided mica tape.
The preferred 1100mm of width of wide cut compounding machine in step (3).
Should be according to different specification requirements while cutting, with semi-finished product actual quantities size, reasonably calculate the width of belt, adjust distance and the tube core of cutting knife, tube core application plastic conduit. the width of mica tape is less than the tolerance+1mm of 20mm, and the tolerance that width is greater than 25mm is ± 2mm.In cutting process, rolling is wanted closely, to guarantee without burr, and without burr, carry out if desired after-combustion, as occurred, belt phenomenon must connect jail.Product after after-combustion should reach consolidation, and tube core is not loosening, and surfacing is clean.
The present invention carries out preheating to two-sided mica tape germ band, and drying and processing is carried out by the baking oven of wide cut compounding machine in mica tape germ band, baking oven one, two, the temperature in San, 4th district is respectively 60-65 ℃, 50-55 ℃, 60-65 ℃, 60-65 ℃; And then cooling, rolling, cut, the two-sided mica tape flexibility making is good, and Wrapping technical is good, and gas permeability is high, and hot-face insulation is good, and production cost is low, saves the energy.
The present invention, by cooling, rolling, forms the not aluminium-plastic tape of self-adhesion of interlayer, and in cutting process, rolling is wanted closely, to guarantee without burr, and without burr, surfacing is clean.
The fire-resistant intensity of mica tape of the present invention and stretching toughness are high, easy fracture, loosening not, and unstable product quality, has reduced processing cost.

Claims (3)

1. a two-sided organic silicon polyimide film dry mica paper tape, it is characterized in that, described mica tape comprises mica paper and polyimide film, polyimide film is arranged on mica paper upper and lower surface, the polyimide film of mica paper and its upper and lower surface is bonded together by sizing material, described sizing material comprises organic siliconresin, modified additive, additive, toluene and ethyl acetate, the ratio of the weight of organic siliconresin, modified additive, additive, toluene and ethyl acetate is 10:0.6:0.24:18:12, and in described mica tape, sizing material content is 3-9 g/ ㎡; Described mica paper thickness is 0.035-0.065mm, and polyimide film thickness is 0.03-0.035mm.
2. the preparation method of two-sided organic silicon polyimide film dry mica paper tape as claimed in claim 1, is characterized in that, described preparation method comprises the following steps:
(1) by cooling acquisition sizing material after organic siliconresin, modified additive, additive, toluene, ethyl acetate and emulsifying dispersant mix and blend, sizing material is placed in to glue groove, mixing time 1-2 hour; The ratio of the weight of described organic siliconresin, modified additive, additive, toluene and ethyl acetate is 10:0.6:0.24:18:12;
(2), by the thick polyimide film uncoiling of 0.03-0.035mm, cross the glue groove that dipping sizing material is housed;
(3) by wide cut compounding machine, undertaken compound, the thick mica paper uncoiling of 0.035-0.065mm is simultaneously attached on the polyimide film that applies sizing material, mica paper another side is combined with each other with the polyimide film of another layer of coating sizing material again, forms two-sided mica tape germ band;
(4) preheating is carried out in two-sided mica tape germ band, preheat temperature is 70-75 ℃; Mica tape germ band after preheating is by the baking oven of wide cut compounding machine, baking oven one, two, the temperature in San, 4th district is respectively 60-65 ℃, 50-55 ℃, 60-65 ℃, 60-65 ℃;
(5) go out the mica tape germ band cooling 7-8min in air at room temperature after baking oven, carry out rolling after cooling;
(6) the mica tape germ band after rolling cuts into banded and rolling by cutting machine, obtains two-sided mica tape.
3. the preparation method of two-sided organic silicon polyimide film dry mica paper tape according to claim 2, is characterized in that, described in step (3), the width of wide cut compounding machine is 1100mm.
CN201310479236.3A 2013-10-15 2013-10-15 Double-faced organic silicon polyimide film dry mica paper tape and preparation method thereof Pending CN103514978A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105245049A (en) * 2015-11-10 2016-01-13 株洲时代新材料科技股份有限公司 Four-in-one mica tape and insulating method for applying same to motor leading-out wire connection part
CN108115959A (en) * 2017-12-22 2018-06-05 扬州新奇特电气有限公司 A kind of environment-friendly type mica high molecular material composite band production method
CN108573772A (en) * 2018-06-22 2018-09-25 江苏东峰电缆有限公司 A kind of copper core polyvinyl chloride insulation flame-retardant strand type connection flexible cable
RU204482U1 (en) * 2021-02-20 2021-05-26 Закрытое акционерное общество "Москабельмет" (ЗАО "МКМ") INSULATED WINDING WIRE
CN115519855A (en) * 2022-10-08 2022-12-27 江苏安东电工材料有限公司 Preparation method of fire-resistant mica tape for fire-resistant wire

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105245049A (en) * 2015-11-10 2016-01-13 株洲时代新材料科技股份有限公司 Four-in-one mica tape and insulating method for applying same to motor leading-out wire connection part
CN108115959A (en) * 2017-12-22 2018-06-05 扬州新奇特电气有限公司 A kind of environment-friendly type mica high molecular material composite band production method
CN108573772A (en) * 2018-06-22 2018-09-25 江苏东峰电缆有限公司 A kind of copper core polyvinyl chloride insulation flame-retardant strand type connection flexible cable
RU204482U1 (en) * 2021-02-20 2021-05-26 Закрытое акционерное общество "Москабельмет" (ЗАО "МКМ") INSULATED WINDING WIRE
CN115519855A (en) * 2022-10-08 2022-12-27 江苏安东电工材料有限公司 Preparation method of fire-resistant mica tape for fire-resistant wire

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Application publication date: 20140115