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Polyphosphoric acid type flame retardant

A technology of polyphosphoric acid and flame retardant, applied in textiles, papermaking, fiber processing, etc., can solve problems such as environmental pollution and difficult treatment, and achieve the effect of good skin touch and stable quality

Inactive Publication Date: 2007-08-08
KAWASHIMA SELKON TEXTILES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in the above method, since the polyphosphoric acid flame retardant added with melamine produces formaldehyde gas, it is difficult to handle, and it causes environmental pollution when used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]Add 200 parts by weight of water to 100 parts by weight of silicone-based resin emulsion (resin component: polyorganosiloxane 20% by weight, KR-50 manufactured by Meisei Chemical Industry Co., Ltd.), and heat at 80°C and stir for 20 minutes , and then by mixing ammonium polyphosphate particles with an average particle diameter of 8 μm and a weight average polymerization degree of 1000 in the obtained resin liquid, the ammonium polyphosphate particles have 100 parts by weight relative to 6 parts by weight of the resin component, and ammonium polyphosphate is prepared. particle dispersion.

[0042] This ammonium polyphosphate particle dispersion was heated and dried to obtain a resin-coated polyphosphate-based flame retardant.

Embodiment 2

[0056] By mixing silicone-based resin (polyorganosiloxane manufactured by Shin-Etsu Chemical Co., Ltd.) 6 parts by weight and 100 parts by weight of toluene in a resin dissolving solution, a polymer having an average particle diameter of 8 μm and a weight-average degree of polymerization of 1000 was mixed. 100 parts by weight of ammonium phosphate particles were used to prepare a dispersion solution of ammonium polyphosphate particles, and the dispersion solution of ammonium polyphosphate particles was heated and dried to obtain a polyphosphoric acid-based flame retardant covered with a resin.

Embodiment 3

[0058] Ammonium polyphosphate with an average particle diameter of 20 μm and a weight-average degree of polymerization of 1000 was mixed in a resin solution composed of 6 parts by weight of silicone resin (polyorganosiloxane manufactured by Shin-Etsu Chemical Co., Ltd.) and 100 parts by weight of toluene 100 parts by weight of the particles were used to prepare an ammonium polyphosphate particle dispersion solution, and the ammonium polyphosphate particle dispersion solution was heated and dried to obtain a polyphosphate-based flame retardant covered with a resin.

[0059] The following test was implemented about seven kinds of polyphosphoric acid flame retardants obtained by Examples 1-3 and Comparative Examples 1-4.

[0060] (1) Add 100 parts by weight of water (60 parts by weight) to 100 parts by weight of each polyphosphoric acid flame retardant covered by resin and 100 parts by weight of the blank untreated ammonium polyphosphate particles (comparative example 5) not cover...

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Abstract

A flame retardant obtained by combining a flame-retardant polyphosphoric acid compound with a silicone resin. The silicone resin is applied so as to coat particles of the polyphosphoric acid compound. The polyphosphoric acid compound preferably is ammonium polyphosphate having a weight-average degree of polymerization of 20-2,000. When the flame retardant is compounded with a binder resin to obtain a flame-retardant resin composition and this composition is applied to fibers, then a flame-retardant textile product friendly to the environment can be stably obtained.

Description

technical field [0001] The invention relates to a polyphosphoric acid flame retardant, which is composed of a composite of polyphosphoric acid compound and silicone resin. Background technique [0002] Conventionally, in order to achieve flame retardancy of resin compositions and fiber products, halogen-based flame retardants containing halogen as a main component have been widely used. [0003] However, the resin composition or fiber products flame-retardant by halogen-based flame retardants generate harmful halogen gas when burned, so when a fire breaks out, it causes secondary disasters caused by gas poisoning, and causes public nuisance when burned question. [0004] Therefore, in recent years, attention has been paid to polyphosphoric acid-based flame retardants that do not contain halogens. [0005] However, the polyphosphoric acid flame retardant is easy to contain moisture, therefore, the particles of the polyphosphoric acid flame retardant aggregate and expand dur...

Claims

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Application Information

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IPC IPC(8): C09K21/14D06M15/643C09K21/04D06M23/08D06M11/70C08K9/06
Inventor 大原弘平
Owner KAWASHIMA SELKON TEXTILES
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