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Flame-retardant anti-dripping hot melting adhesive membrane for flexible flat cable (FFC), and preparation method of hot melting adhesive membrane

A hot-melt adhesive film and anti-dropping technology, which is applied in the direction of adhesives, film/sheet adhesives, adhesive types, etc., can solve the problems of molten dripping or molten particles that are prone to dripping, electrical performance, Increased loss of mechanical properties, toxic or corrosive gases and smog, etc., to ensure that it is not easy to dialysis, has good dispersion and mixing compatibility, and ensures thermal stability.

Inactive Publication Date: 2018-11-09
广东莱尔新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing FFC cables are mainly made of TPE and its modified materials as its cable covering materials, which generally require strict flame retardant performance requirements, and the polyolefin elastomer and polystyrene elastomer materials in TPE materials belong to It is an extremely flammable material, and it is difficult to improve the flame retardant performance of this type of material; therefore, it is often used to add a large amount of halogenated flame retardants to improve the flame retardant performance of the product, but with the increase of halogenated flame retardants , the impact on other aspects of performance such as electrical properties, mechanical properties and other losses will increase accordingly. At the same time, because halogenated flame retardants mainly produce suffocating gas and melt droplets to take away heat during the combustion process, the flame retardant effect is achieved. Therefore, when the material is thermally decomposed or burned, it is easy to produce more toxic or corrosive gases and smoke. In addition, the molten drips or molten particles generated in the combustion test are prone to dripping, and may even cause continuous combustion. secondary fire hazard

Method used

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  • Flame-retardant anti-dripping hot melting adhesive membrane for flexible flat cable (FFC), and preparation method of hot melting adhesive membrane
  • Flame-retardant anti-dripping hot melting adhesive membrane for flexible flat cable (FFC), and preparation method of hot melting adhesive membrane
  • Flame-retardant anti-dripping hot melting adhesive membrane for flexible flat cable (FFC), and preparation method of hot melting adhesive membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The test result of embodiment 1 is as follows:

[0035]

[0036]

[0037] It can be seen from the above table that the hot-melt adhesive film for FFC wire obtained in Example 1 can all reach the level of VTM-0 flame retardancy, the afterflame / afterglow does not burn to the 125mm scale, the amount of smoke is low, and the burning particles or droplets Falling objects cannot ignite absorbent cotton balls, and have good flame retardant and anti-droplet performance.

Embodiment 2

[0038] The test result of embodiment 2 is as follows:

[0039]

[0040]It can be seen from the above table that the hot-melt adhesive film for FFC wires obtained in Example 2 can also reach the VTM-0 flame retardant level, the afterflame / afterglow does not burn to the 125mm scale, the amount of smoke is low, and the burning particles or None of the drippings can ignite the absorbent cotton balls, and it has good flame retardant and anti-melting droplet performance.

Embodiment 3

[0041] The test result of embodiment 3 is as follows:

[0042]

[0043]

[0044] It can be seen from the above table that the hot melt adhesive film for FFC wire obtained in Example 3 can also reach the level of VTM-0 flame retardancy, and the afterflame time is 0, that is, it is extinguished immediately after evacuating the flame, and there is no ignition; Afterflame / Ignition does not burn to the 125mm scale, the amount of smoke is low; and it is quickly extinguished in a short period of time. Due to the high temperature of the burning part, it will be heated and melted and dripped, but neither the burning particles nor the dripping can ignite the absorbent cotton The ball has good flame retardant and anti-droplet performance.

[0045] The test result of comparative example 2 is as follows:

[0046]

[0047] It can be seen from the above table that although the hot melt adhesive film for FFC wires obtained in Comparative Example 2 can reach the VTM-0 flame retardant...

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Abstract

The invention relates to a flame-retardant anti-dripping hot melting adhesive membrane for a flexible flat cable (FFC), and a preparation method of the hot melting adhesive membrane. The hot melting adhesive membrane for the FFC is prepared from the following components by mass percent: 20-50% of thermoplastic styrene elastomer copolymer, 10-15% of modified polyphenylene ether resin, 8-10% of compatibilizer, 25-35% of flame retardant, 5-10% of synergistic flame retardant, 1-5% of smoke suppressant and 1-5% of nano inorganic matter. The flame-retardant anti-dripping hot melting adhesive membrane for the FFC can reduce the adding amount of the halogen flame retardant, and has the characteristics of being low in smoke quantity and good in flame-retardant and anti-dripping effects.

Description

technical field [0001] The invention relates to the technical field of high-frequency transmission wires, in particular to a flame-retardant and droplet-resistant hot-melt adhesive film for FFC wires and a preparation method thereof. Background technique [0002] At present, Halogen-environmentally friendly flexible flat cables (also known as Halogen-environmentally friendly FFC cables) have been widely used in the field of signal transmission data lines / electronic lines for various printers, copiers, plotters, scanners and other related electronic equipment. Existing FFC cables are mainly made of TPE and its modified materials as its cable covering materials, which generally require strict flame retardant performance requirements, and the polyolefin elastomer and polystyrene elastomer materials in TPE materials belong to It is an extremely flammable material, and it is difficult to improve the flame retardant performance of this type of material; therefore, it is often used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/30C09J125/08C09J11/04C09J11/06C09J11/08
CPCC08K2003/2224C08K2003/2227C08K2003/2241C08K2003/387C08K2201/011C08L2201/02C08L2201/08C08L2205/03C08L2205/08C09J11/04C09J11/06C09J11/08C09J125/08C09J2467/006C09J7/255C09J7/30C09J2301/304C09J2301/408C09J2301/414C08L71/12C08L51/003C08L51/04C08K13/06C08K3/346C08K3/36C08K3/34C08K5/03C08K5/06C08K3/22C08K3/38
Inventor 李政郭伟林贺才利
Owner 广东莱尔新材料科技股份有限公司
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