CN103514979A - Mica tape and preparation method thereof - Google Patents
Mica tape and preparation method thereof Download PDFInfo
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- CN103514979A CN103514979A CN201310479241.4A CN201310479241A CN103514979A CN 103514979 A CN103514979 A CN 103514979A CN 201310479241 A CN201310479241 A CN 201310479241A CN 103514979 A CN103514979 A CN 103514979A
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- mica tape
- sizing material
- diluent
- curing agent
- mica
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Abstract
The invention relates to a cable fire-resistant insulation material, and particularly relates to a mica tape and a preparation method thereof. The mica tape comprises mica paper and glass fiber cloth. The glass fiber cloth is arranged on upper and lower surfaces of the mica paper. The mica paper and the glass fiber cloth on upper and lower surfaces of the mica paper are bonded together through glue materials. Each glue material comprises the active ingredients of an adhesive of organic silicon, a diluent of toluene and a curing agent. The weight ratio of the adhesive, the diluent and the curing agent is 3:20:1. The weight sum of the adhesive, the diluent and the curing agent accounts for 13 to 18% of the weight of the glue materials. The preparation method of the mica 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
Technical field
The present invention relates to a kind of cable refractory insulating material, be specifically related to a kind of mica 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 on existing market, mainly by layer of glass cloth and the bonding post-drying of one deck mica, made, there is good resistance to elevated temperatures and flame resistance energy, during mica tape normality, there is good flexibility, be applicable to main refractory insulating layer in various fire-resistant wire and cables.But existing mica tape is because of itself fire resistance deficiency, in use, need to be wound around more multi-layered mica tape in fire-proof insulation equipment surface, make every effort to improve by increasing the winding thickness of mica tape fire resistance and the fire resistance rating of cable, requirement is up to state standards.Yet, drawback due to mica tape process equipment and processing technology, cause the fire-resistant intensity of mica tape and the stretching toughness of machine-shaping not high, therefore when harassing and disturbing, along with the increase of thickness, be easy to cause between fracture, loosening, mica layer and other layers the situations such as disengaging cannot fit like a glove occur, thereby affect the hot-face insulation performance of cable, cause unstable product quality, and increased processing cost.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 mica 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.
Mica tape of the present invention, comprise mica paper and glass fabric, the upper and lower surface of mica paper arranges glass fabric, between mica paper and the glass fabric of its upper and lower surface, by sizing material, be bonded together, active ingredient in described sizing material is adhesive organic silica gel, diluent toluene and curing agent, the ratio of the weight of adhesive, diluent and curing agent is 3:20:1, and the percentage by weight that the weight sum of adhesive, diluent and curing agent accounts for sizing material is 13-18%.
The preparation method of mica tape of the present invention, comprises the following steps:
(1) by adhesive organic silica gel, diluent toluene mix and blend, add curing agent in whipping process, fully dilution obtains sizing material, and sizing material is placed in to glue groove; The ratio of the weight of adhesive, diluent and curing agent is 3:20:1, and the percentage by weight that the weight sum of adhesive, diluent and curing agent accounts for sizing material is 13-18%;
(2), by the thick glass fabric uncoiling of 0.06-0.07mm, cross the glue groove that dipping sizing material is housed;
(3) the thick mica paper uncoiling of 0.06-0.07mm is simultaneously attached on the glass fabric that applies sizing material, mica paper another side is combined with each other with the glass fabric of another layer of coating sizing material again, with cylinder, the two is pressed together and forms two-sided mica tape germ band;
(4) drying and processing is carried out to by baking oven in mica tape germ band, before, during and after baking oven, the temperature in district is respectively 95-95 ℃, 155-175 ℃, 105-125 ℃;
(5) go out the mica tape stock cooling 7-8min in air at room temperature after baking oven, carry out rolling after cooling;
(6) the mica tape stock after rolling cuts into banded and rolling by cutting machine, obtains fire-resistant isinglass belt.
Preferably, to account for the percentage by weight of sizing material be 15% to the weight sum of adhesive, diluent and curing agent described in step (1).
When preferably, described in step (4), two-sided mica tape cures baking oven before, during and after the temperature in district be respectively 90 ℃, 170 ℃, 130 ℃.
Compared with prior art, the present invention has following beneficial effect: first, drying and processing is carried out by baking oven in mica tape germ band, and before, during and after baking oven, the temperature in district is respectively 95-95 ℃, 155-175 ℃, 105-125 ℃, and then cooling, rolling, cuts, the fire-resistant isinglass belt flexibility making is good, Wrapping technical is good, and gas permeability is high, and hot-face insulation is good, 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.
Accompanying drawing explanation
Fig. 1 is the structural representation of mica tape of the present invention;
In figure: 1 mica paper, 2 glass fabrics.
Embodiment
As shown in Figure 1, mica tape, comprise mica paper 1 and glass fabric 2, the upper and lower surface of mica paper 1 arranges glass fabric 2, between the glass fabric 2 of mica paper 1 and its upper and lower surface, by sizing material, be bonded together, active ingredient in described sizing material is adhesive organic silica gel, diluent toluene and curing agent, and the ratio of the weight of adhesive, diluent and curing agent is 3:20:1, and the percentage by weight that the weight sum of adhesive, diluent and curing agent accounts for sizing material is 13-18%.
The preparation method of mica tape, comprises the following steps:
(1) by adhesive organic silica gel, diluent toluene mix and blend, add curing agent in whipping process, fully dilution obtains sizing material, and sizing material is placed in to glue groove; The ratio of the weight of adhesive, diluent and curing agent is 3:20:1, and the percentage by weight that the weight sum of adhesive, diluent and curing agent accounts for sizing material is 13-18%;
(2), by the thick glass fabric uncoiling of 0.06-0.07mm, cross the glue groove that dipping sizing material is housed;
(3) the thick mica paper uncoiling of 0.06-0.07mm is simultaneously attached on the glass fabric that applies sizing material, mica paper another side is combined with each other with the glass fabric of another layer of coating sizing material again, with cylinder, the two is pressed together and forms two-sided mica tape germ band;
(4) drying and processing is carried out to by baking oven in mica tape germ band, before, during and after baking oven, the temperature in district is respectively 95-95 ℃, 155-175 ℃, 105-125 ℃;
(5) go out the mica tape stock cooling 7-8min in air at room temperature after baking oven, carry out rolling after cooling;
(6) the mica tape stock after rolling cuts into banded and rolling by cutting machine, obtains fire-resistant isinglass belt.
The percentage by weight that the weight sum of the middle adhesive of step (1), diluent and curing agent accounts for sizing material is 15%.
When in step (4), two-sided mica tape cures baking oven before, during and after the temperature in district be respectively 90 ℃, 170 ℃, 130 ℃.
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 has following beneficial effect: first, drying and processing is carried out by baking oven in mica tape germ band, before, during and after baking oven, the temperature in district is respectively 95-95 ℃, 155-175 ℃, 105-125 ℃, and then cooling, rolling, cut, the fire-resistant isinglass belt flexibility making is good, and Wrapping technical is good, gas permeability is high, 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.
Claims (4)
1. a mica tape, it is characterized in that, described mica tape comprises mica paper and glass fabric, the upper and lower surface of mica paper arranges glass fabric, between mica paper and the glass fabric of its upper and lower surface, by sizing material, be bonded together, active ingredient in described sizing material is adhesive organic silica gel, diluent toluene and curing agent, and the ratio of the weight of adhesive, diluent and curing agent is 3:20:1, and the percentage by weight that the weight sum of adhesive, diluent and curing agent accounts for sizing material is 13-18%.
2. the preparation method of mica tape as claimed in claim 1, is characterized in that, described preparation method comprises the following steps:
(1) by adhesive organic silica gel, diluent toluene mix and blend, add curing agent in whipping process, fully dilution obtains sizing material, and sizing material is placed in to glue groove; The ratio of the weight of adhesive, diluent and curing agent is 3:20:1, and the percentage by weight that the weight sum of adhesive, diluent and curing agent accounts for sizing material is 13-18%;
(2), by the thick glass fabric uncoiling of 0.06-0.07mm, cross the glue groove that dipping sizing material is housed;
(3) the thick mica paper uncoiling of 0.06-0.07mm is simultaneously attached on the glass fabric that applies sizing material, mica paper another side is combined with each other with the glass fabric of another layer of coating sizing material again, with cylinder, the two is pressed together and forms two-sided mica tape germ band;
(4) drying and processing is carried out to by baking oven in mica tape germ band, before, during and after baking oven, the temperature in district is respectively 95-95 ℃, 155-175 ℃, 105-125 ℃;
(5) go out the mica tape stock cooling 7-8min in air at room temperature after baking oven, carry out rolling after cooling;
(6) the mica tape stock after rolling cuts into banded and rolling by cutting machine, obtains fire-resistant isinglass belt.
3. the preparation method of mica tape according to claim 2, is characterized in that, it is 15% that the weight sum of adhesive, diluent and curing agent described in step (1) accounts for the percentage by weight of sizing material.
4. the preparation method of mica tape according to claim 2, is characterized in that, when described in step (4), two-sided mica tape cures baking oven before, during and after the temperature in district be respectively 90 ℃, 170 ℃, 130 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479241.4A CN103514979A (en) | 2013-10-15 | 2013-10-15 | Mica tape and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310479241.4A CN103514979A (en) | 2013-10-15 | 2013-10-15 | Mica tape and preparation method thereof |
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| CN103514979A true CN103514979A (en) | 2014-01-15 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070350A (en) * | 2015-06-30 | 2015-11-18 | 平江县兴科云母制品有限公司 | Manufacture process of low-flourine mica tape |
| CN105719781A (en) * | 2016-04-05 | 2016-06-29 | 杭州世纪云母绝缘材料有限公司 | High temperature resistant powder mica tape containing high strength fibers |
| CN108688262A (en) * | 2018-04-22 | 2018-10-23 | 通城县同力玻纤有限公司 | A kind of preparation method of fire resistant belt |
| CN109754966A (en) * | 2019-01-10 | 2019-05-14 | 哈尔滨中申电气制造有限公司 | A kind of preparation method of high thermal conductivity epoxy glass mica paper tape |
| CN110970184A (en) * | 2019-12-18 | 2020-04-07 | 湖北平安电工材料有限公司 | Mica tape preparation method |
| CN112289528A (en) * | 2020-09-23 | 2021-01-29 | 湖北平安电工实业有限公司 | Method for manufacturing calcined mica tape and calcined mica tape |
| CN112712947A (en) * | 2020-12-29 | 2021-04-27 | 湖北平安电工股份有限公司 | Method for improving appearance chromaticity of synthetic mica plate |
| 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 |
-
2013
- 2013-10-15 CN CN201310479241.4A patent/CN103514979A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070350A (en) * | 2015-06-30 | 2015-11-18 | 平江县兴科云母制品有限公司 | Manufacture process of low-flourine mica tape |
| CN105070350B (en) * | 2015-06-30 | 2017-03-22 | 平江县兴科云母制品有限公司 | Manufacture process of low-flourine mica tape |
| CN105719781A (en) * | 2016-04-05 | 2016-06-29 | 杭州世纪云母绝缘材料有限公司 | High temperature resistant powder mica tape containing high strength fibers |
| CN108688262A (en) * | 2018-04-22 | 2018-10-23 | 通城县同力玻纤有限公司 | A kind of preparation method of fire resistant belt |
| CN109754966A (en) * | 2019-01-10 | 2019-05-14 | 哈尔滨中申电气制造有限公司 | A kind of preparation method of high thermal conductivity epoxy glass mica paper tape |
| CN110970184A (en) * | 2019-12-18 | 2020-04-07 | 湖北平安电工材料有限公司 | Mica tape preparation method |
| CN112289528A (en) * | 2020-09-23 | 2021-01-29 | 湖北平安电工实业有限公司 | Method for manufacturing calcined mica tape and calcined mica tape |
| CN112712947A (en) * | 2020-12-29 | 2021-04-27 | 湖北平安电工股份有限公司 | Method for improving appearance chromaticity of synthetic mica plate |
| 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 |