Flame-retardant system for acetate cloth tape

A technology of acetate cloth and acetate fiber cloth, which is applied in the direction of adhesives, film/sheet adhesives, textiles and paper making, and can solve the problem that it is difficult for flame retardants to meet the flame retardant requirements of V-0 level

Inactive Publication Date: 2013-04-17
新丰杰力电工材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve these problems, people use halogen-free flame retardants to replace the halogen-containing flame retardants. Glue is also easy to burn), and it is difficult for general or single flame retardants to meet the V-0 flame retardant requirements of UL94

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation method of the halogen-free flame-retardant acetate fiber cloth adhesive tape of the present invention comprises the following steps:

[0037] (1) The cellulose acetate cloth substrate is coated with a layer of fabric organic phosphate flame retardant by roll dipping, and it is subjected to a certain drying and wrinkle removal process.

[0038] (2) Dissolve the above flame retardant system in 4-5 times the amount of toluene, put it on a grinder for dispersion and grinding, and obtain the flame retardant part.

[0039] (3) Add part of the above-mentioned flame retardant to the rubber-type pressure-sensitive adhesive system, and stir evenly to prepare a flame-retardant rubber-type pressure-sensitive adhesive.

[0040] (4) Coating the pressure-sensitive adhesive on one side of the acetate cloth substrate by a coating machine, and drying.

[0041] The invention aims to improve the flame retardant performance of the flame retardant through the synergistic e...

Embodiment 1

[0044] According to the following weights, each component of the flame retardant according to the present invention is weighed and added to the rubber-type pressure-sensitive adhesive:

[0045] Ammonium polyphosphate 60g Pentaerythritol 30g Melamine 30g

[0046] 6500 mesh aluminum hydroxide 30g ultrafine zinc borate powder 15g

[0047] According to the steps of the above-mentioned preparation method, a pressure-sensitive adhesive is coated on one side of the treated acetate fiber cloth base material by a coating machine, and dried to obtain the halogen-free flame-retardant acetate cloth adhesive tape.

[0048] Results: The flame retardancy of the rubber-type flame-retardant acetate cloth can reach the V-0 level of UL-94.

Embodiment 2

[0050] According to the following weights, each component of the flame retardant according to the present invention is weighed and added to the rubber-type pressure-sensitive adhesive:

[0051] Ammonium polyphosphate 60g Pentaerythritol 30g Dicyandiamide 35g

[0052] 6500 mesh aluminum hydroxide 30g ultrafine zinc borate powder 15g

[0053] According to the steps of the above-mentioned preparation method, a pressure-sensitive adhesive is coated on one side of the treated acetate fiber cloth base material by a coating machine, and dried to obtain the halogen-free flame-retardant acetate cloth adhesive tape.

[0054] Results: The flame retardancy of the rubber-type flame-retardant acetate cloth can reach the V-0 level of UL-94.

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Abstract

The invention relates to a flame-retardant system for an acetate cloth tape, which is provided with a halogen-free flame retardant system with environmental-friendliness and high flame retardant efficiency. The halogen-free flame retardant system has excellent compatibility with a rubber pressure sensitive adhesive, does not change mechanical performance of the acetate cloth tape and simultaneously improves heat resistance of the acetate cloth tape. The flame-retardant system does no harm to the environment and a human body; the specific gravity of the halogen-free flame retardant system in the rubber pressure sensitive adhesive is between 10 percent and 20 percent; the halogen-free flame retardant system is a mixture consisting of a halogen-free inrumescent flame retardant (IFR), metal hydrate and superfine zinc borate powder. By the synergistic effect of the flame-retardant system, the flame retardance of a flame retardant is improved, the addition quantity of the flame retardant is reduced, the flame retardant effect which is the same with that obtained when a great quantity of single flame retardant is added is achieved, and the flame-retardant acetate cloth tape has the advantages of resistance to high temperature, resistance to high pressure, insulation, flame retardance and the like, is soft and docile, has tear property and can be used for various electronic components.

Description

technical field [0001] The invention belongs to the technical field of electrical insulating materials, and relates to a flame-retardant system used for acetate cloth tapes. Background technique [0002] Acetate fiber tape is widely used in the electrical and electronic industry, such as transformers, motors, coil capacitors and wiring harnesses, frequency conversion power supplies and other equipment, as an insulating tape for fixed winding. With the development of high technology, the popularity of electronic products that people come into contact with in daily life has increased. Since electronic products have been charged for a long time and work at a temperature higher than normal temperature, it is easy to cause the internal coil to loosen, and a short circuit of a circuit is generated. Sparks can cause combustion, so flame retardants need to be added to acetate fiber tape to obtain good flame retardancy. At present, the existing products of this type either have poor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/04C09J11/04C09J11/08C09J11/06D06M13/292
Inventor 肖剑吴巍
Owner 新丰杰力电工材料有限公司
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