Single-side fire-retardant adhesive tape and preparation method thereof

A flame retardant tape, single-sided technology, applied in the direction of adhesive, adhesive type, film/sheet adhesive, etc., can solve the problem that the performance cannot be stable for a long time, the lack of high-grade flame retardant tape, the amount of flame retardant large and other problems, to achieve the effect of high phosphorus content, good flame retardant effect, and simple mixing process

Inactive Publication Date: 2018-07-27
DWELL PHOTOELECTRIC MATERIAL SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a single-sided flame-retardant adhesive tape and its preparation method, which is used to solve the problem of lack of high-grade flame-retardant adhesive tape at present
Adhesives use compound flame retardants, including solid flame retardants and liquid flame retardants. When high-level flame retardant effects are required, the amount of flame retardants is large. If it is a single solid flame retardant, the coated glue There are appearance defects on the surface, if a single liquid flame retardant, there is a problem that the performance cannot be stabilized for a long time due to migration

Method used

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  • Single-side fire-retardant adhesive tape and preparation method thereof
  • Single-side fire-retardant adhesive tape and preparation method thereof
  • Single-side fire-retardant adhesive tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Rubber mixing:

[0030] Dilute 75kg of solvent-based polyacrylate (number-average molecular weight of 900,000 and acid value of 6mgKOH / g) with 160kg of solvent ethyl acetate, stir at 400rpm for 20min with a high-speed disperser, reduce the speed to 100rpm, and prepare in advance The flame retardant solution (mixed with 13kg diethylaluminum hypophosphite and 12kg bisphenol A-bis(diphenyl phosphate) and 65kg ethyl acetate) was added to the system, continued to stir at a high speed of 400rpm for 20min, and then slowed down to 100rpm, and finally pour the pre-prepared curing agent solution (mixed with 0.5kg GA240 curing agent and 4.5kg ethyl acetate) into the above system slowly, restore the speed to 400rpm and continue stirring for 30min, stop stirring, and stand for use ;

[0031] 2) Coating:

[0032] Select a 36μm single-sided polyester release film with a release force of 8-12gf / inch, supply glue through a filter system with a size of 20μm, and apply a 24μm thickne...

Embodiment 2

[0038] 1) Rubber mixing:

[0039] Dilute 70kg of solvent-based polyacrylate (number average molecular weight of 1 million, acid value of 9mgKOH / g) with 370kg of solvent ethyl acetate, stir at 400rpm for 20min with a high-speed disperser, reduce the speed to 100rpm, and prepare in advance The flame retardant solution (10kg diethyl aluminum hypophosphite and 15kg bisphenol A-bis (diphenyl phosphate) and 50kg ethyl acetate mixed) was added to the system, and continued to stir at a high speed of 400rpm for 20min, and then the speed was reduced to 100rpm, and finally pour the pre-prepared curing agent solution (mixed with 0.8kg GA240 curing agent and 7.2kg ethyl acetate) into the above system slowly, restore the speed to 400rpm and continue stirring for 30min, stop stirring, and stand for use ;

[0040] 2) Coating:

[0041] Select a 25μm single-sided polyester release film with a release force of 8-12gf / inch, supply glue through a filter system with a size of 20μm, and apply a 18...

Embodiment 3

[0047] 1) Rubber mixing:

[0048]Dilute 80kg of solvent-based polyacrylate (number-average molecular weight of 700,000 and acid value of 4mgKOH / g) with 100kg of solvent ethyl acetate, stir at 400rpm for 20min with a high-speed disperser, and reduce the speed to 100rpm. Flame retardant solution (mixed with 15kg aluminum diethyl hypophosphite and 10kg bisphenol A-bis(diphenyl phosphate) and 75kg ethyl acetate) was added to the system, and continued to stir at a high speed of 400rpm for 20min, then reduced to 100rpm, and finally pour the pre-prepared curing agent solution (mixed with 0.3kg GA240 curing agent and 2.7kg ethyl acetate) into the above system slowly, restore the speed to 400rpm and continue stirring for 30min, stop stirring, and stand for use;

[0049] 2) Coating:

[0050] Select double-sided PE-coated release paper with a grammage of 110g and a release force of 8-12gf / inch, supply glue through a filter system with a size of 50μm, and use a comma roller to coat the r...

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Abstract

The invention belongs to the technical field of an adhesive tape in an electronic product, and particularly relates to a single-side fire-retardant adhesive tape and a preparation method thereof. Thesingle-side fire-retardant adhesive tape comprises a substrate layer, a bonding agent layer and a release material layer, wherein the bonding agent layer is arranged on the surface of the substrate layer; the release material layer is arranged on the surface of the bonding agent layer; the bonding agent layer is prepared from raw materials of polyacrylate, curing agents, a first fire-retardant agent, a second fire-retardant agent and a solvent; the first fire-retardant agent is solid at normal temperature; the second fire-retardant agent is liquid at normal temperature. The preparation methodcomprises the steps of adhesive mixing, coating, composite reeling and curing. Compared with the prior art, the single-side fire-retardant adhesive tape has the following advantages that the bonding agent layer comprises two kinds of phosphorous fire-retardant agents; low smoke and low toxicity are realized; the phosphorous content is high; a good fire-retardant effect is achieved. The technical scheme provided by the invention is applicable to the adhesive tape finished product with high fire-retardant grade requirements; the adhesive mixing process is simple; the goal can be achieved by a general coating process; the characteristics of mass production and stable production are realized.

Description

technical field [0001] The invention belongs to the technical field of adhesive tapes in electronic products, and in particular relates to a single-sided flame-retardant adhesive tape and a preparation method thereof. Background technique [0002] Modern society has higher and higher requirements for the flame retardant and safety performance of polymer materials, especially electronic products, which not only require high flame retardant effect, but also require safety and pollution-free. In real life, the main reason for the death of people in fire is that these polymer materials have poor flame retardancy, and a large amount of dense smoke and toxic gases are produced during the combustion process. Therefore, it is necessary to develop high-grade polymer materials that produce less or even no smoke, low toxicity and even haze gas during combustion. [0003] Adhesive tape is a polymer material commonly used in daily life, and it is widely used in electronic products. For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/21C09J7/30C09J133/04C09J11/06
CPCC08K5/523C08K5/5313C09J7/21C09J7/25C09J7/255C09J7/30C09J11/06C09J133/04C09J2301/122C09J2301/30C09J2301/408C09J2400/283C09J2433/00C09J2467/006C09J2479/086
Inventor 陈余谦袁勇
Owner DWELL PHOTOELECTRIC MATERIAL SUZHOU
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