Expanding fire retardant composition without halide for polyolefine

An intumescent flame retardant and composition technology, which is applied in the field of halogen-free intumescent flame retardant compositions for polyolefins, can solve problems such as high toxicity, and achieve low smoke density, small mass loss rate, and large residual mass. Effect

Inactive Publication Date: 2002-02-13
BALING PETRO CHEM CO LTD SINOPEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some data show that some brominated aromatic hydrocarbon flame retardants (such as decabromodiphenyl ether) produce highly toxic brominated dibenzoxanes and brominated dibenzof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Dry pentaerythritol phosphate, melamine polyphosphate, lubricant, coupling agent, and filler to make the water content ≤0.2% (wt), and then pulverize to make the particle size ≤35 μm;

[0020] Secondly, put pentaerythritol phosphate, melamine polyphosphate, lubricant, coupling agent, and filler into the high-speed mixer and mix for 10 to 20 minutes to obtain the halogen-free expansion type for polyolefin Flame retardant composition.

[0021] Example

pentaerythritol

Phosphate

Melamine and more

Polyphosphate

lubricant

coupling agent

filler

PEPA

%(wt)

MPP

%(wt)

C 18

%(wt)

C 18 Zn

%(wt)

KH-550

%(wt)

KH-560

%(wt)

TiO 2

%(wt)

1

20

79.7

0.1

0.1

0.1

2

20

79.7

0.1

0.1

0.1

Example

pentaerythritol

Phosphate

Melamine a...

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PUM

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Abstract

The fire retardant composition consists of pentaerythritol phosphate 18-54 wt%, melamine polyphosphate 40-80 wt%, stearic acid or zinc stearate 0.1-5 wt%, coupling agent 0.1-5 wt% and stuffing 0.1-5 wt%. It is used as fire retardant for polypropylene powder or grains, and when the addition amount is 28 wt% fireproof level of UL94V-0 is reached; and is also used as fire retardant for polyethylene,and when the addition amount is 30 wt% fireproof level of UL94V-0 is reached.

Description

(1) Technical field [0001] The invention relates to a halogen-free intumescent flame retardant composition for polyolefin. (2) Background technology [0002] Halogen-based (emphasis is bromine-based) flame retardants are currently the world's largest organic flame retardants for polyolefins. They occupy a dominant position in the field of flame retardants due to their small additions and significant flame retardant effects. Halogen-based flame retardant systems play a flame retardant role mainly by degrading to produce hydrogen halide gas or metal halides. These compounds also increase the generation of toxic and shielding gases in fires. In addition, some data show that some brominated aromatic hydrocarbon flame retardants (such as decabromodiphenyl ether) produce highly toxic brominated dibenzoxane and brominated dibenzofuran when burned. Therefore, people are increasingly cautious about the use of halogenated flame retardants, and some countries have even formulated rele...

Claims

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Application Information

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IPC IPC(8): C08K5/521C08L23/00
Inventor 彭治汉毛顺利何思列彭小平李曙红邢志军赫炜熊炳仕
Owner BALING PETRO CHEM CO LTD SINOPEC
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