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Halogenless composite fire retardant for polyolefine plastic

A compound flame retardant and polyolefin technology, applied in the field of flame retardants, can solve problems such as threats to human health, the environment and the next generation, and flame retardants cannot be recycled and used, and achieves suppression of smoke and hydrogen chloride generation. The effect of corrosive prices

Inactive Publication Date: 2006-11-29
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The reason why halogen-based flame retardants are banned in plastic materials is that such flame retardants cannot be recycled and will release harmful substances during combustion and heating, threatening human health, the environment and future generations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 10 kg of aluminum hydroxide according to the proportioning ratio; 40 kg of brucite powder; 5 kg of whiteness coated red phosphorus; 2 kg of resorcinol diphosphate; Formulated as a halogen-free composite flame retardant.

Embodiment 2

[0020] Take 20 kg of aluminum hydroxide according to the proportioning ratio; 60 kg of brucite powder; 10 kg of whiteness coating red phosphorus; 3 kg of resorcinol diphosphate; 15 kg of ammonium polyphosphate; Formulated as a halogen-free composite flame retardant.

Embodiment 3

[0022] Take 30 kg of aluminum hydroxide according to the proportioning ratio; 80 kg of brucite powder; 15 kg of red phosphorus coated with whiteness; 5 kg of resorcinol diphosphate; Formulated as a halogen-free composite flame retardant.

[0023] The flame retardant works differently at different temperatures:

[0024] 1. Ammonium polyphosphate is heated and decomposed at 225°C to release ammonia and water vapor. The water vapor and non-combustible gas produced by the reaction make the molten system expand and foam, which can promote the formation of a non-flammable three-dimensional carbon layer on the surface of organic matter, which can reduce thermal decomposition. The generated combustible tar and low-molecular combustibles promote the generation of non-combustible gases. At the same time, pentaerythritol and acid are dehydrated and carbonized to form inorganic substances and charcoal residues. In addition, the non-volatile phosphorus oxide and polyphosphoric acid produc...

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Abstract

A non-halogen composite flame-retarding agent for polyolefine plastics is proportionally prepared from aluminum hydroxide, brucite powder, whitened coated red phosphorue, resorcin biphosphate, ammonium polyphosphate and zinc borate.

Description

technical field [0001] The invention relates to a flame retardant, in particular to a halogen-free composite flame retardant for polyolefin plastics, which is mainly used for flame retardancy of polyethylene and polypropylene. technical background [0002] Materials are the pillars of the relationship between modern science and social development. Polymer materials have many incomparable properties with other materials, and have become indispensable materials in various fields of cutting-edge technology, national defense construction and national economy. However, most polymer compounds are flammable and combustible materials. Once caught on fire, they burn quickly and are not easy to extinguish. Some will produce thick smoke and toxic gases, pollute the environment, endanger people's lives, and cause property losses. In recent decades, a considerable part of the fires that have occurred in the world is related to the burning of polymer materials. Therefore, how to improve ...

Claims

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Application Information

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IPC IPC(8): C08K5/521C08L23/00C08K3/22C08K3/32C08K3/38
Inventor 梁兵
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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