EVA flame-retardation composite material and preparation method thereof

A technology of flame-retardant composite materials and mixtures, which is applied in the field of modified EVA materials and its preparation, can solve problems such as limiting the scope of application, and achieve the effects of improving flame-retardant performance, improving impact resistance, and good flame retardancy

Inactive Publication Date: 2016-01-13
CHUZHOU YOUSHENG HIGH POLYMER MATERIAL
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Problems solved by technology

However, EVA is as flammable as most plastics and produces...

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  • EVA flame-retardation composite material and preparation method thereof

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Embodiment

[0013] An EVA flame-retardant composite material is made of the following raw materials by weight (kg): ethylene-vinyl acetate copolymer 53, brominated polystyrene 30, polyetherimide 26, polyacrylate pentabromobenzyl ester 14, accumulative Support stone 12, zinc phosphate 8, calcium molybdate 7, hexa-formylphenoxycyclotriphosphazene 16, sodium pyroantimonate 4, bismuth trioxide 6, colemanite 18, triisopropylbenzene phosphate Ester 10, basic lead carbonate 4, low molecular weight polypropylene 6.

[0014] A preparation method of EVA flame-retardant composite material, comprising the following steps:

[0015] (1) Add brominated polystyrene, hexa-formylphenoxycyclotriphosphazene, rectorite, calcium molybdate, and bismuth trioxide into a high-speed mixer and stir until the material temperature reaches 60-70°C , stop stirring, let stand, cool to normal temperature, and discharge to obtain compound A;

[0016] (2) Add polyetherimide, pentabromobenzyl polyacrylate, colemanite, zinc...

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Abstract

The invention discloses an EVA flame-retardation composite material and a preparation method thereof. The EVA flame-retardation composite material is prepared from, by weight, 44-58 parts of ethylene-vinyl acetate copolymer, 25-35 parts of brominated polystyrene, 18-29 parts of polyetherimide, 11-17 parts of polypentabromobenzyl acrylate, 10-15 parts of rectorite, 6-12 parts of zinc phosphate, 5-9 parts of calcium molybdate, 12-18 parts of hexakis(4-formacylphenoxy)cyclotriphosphazene, 3-6 parts of sodium pyroantimonate, 4-7 parts of dibismuth trioxide, 16-22 parts of colemanite, 8-12 parts of isopropyl phenyl diphenyl phosphate, 3-5 parts of basic lead carbonate and 4-8 parts of low molecular weight polypropylene. EVA is blended and modified with brominated polystyrene, polyetherimide, polypentabromobenzyl acrylate and other polymer materials with good compatibility with the EVA, so the flame retardation performance of the EVA is improved, and the impact resistance, the chemical stability and the fatigue resistance of the EVA are improved.

Description

technical field [0001] The invention relates to a modified EVA material and a preparation method thereof, in particular to an EVA flame-retardant composite material and a preparation method thereof. Background technique [0002] Ethylene-vinyl acetate copolymer (EVA) is one of the plastic varieties that have developed rapidly in recent years. It has good impact resistance, flexibility, low temperature resistance, environmental stress cracking resistance and other properties, and is widely used in wires and cables. Pipes, plates, building materials, toys, electrical accessories and other fields. However, EVA is as flammable as most plastics, and at the same time produces black smoke with toxic gases, which limits its application range. Therefore, there is an urgent need to modify EVA materials to meet market demand. Contents of the invention [0003] The object of the present invention is to provide an EVA flame-retardant composite material and a preparation method thereo...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L25/06C08L79/08C08L33/16C08L23/12C08K13/02C08K3/34C08K3/32C08K3/24C08K5/5399C08K3/22C08K3/38C08K5/521C08K3/26
CPCC08L23/0853C08K2201/014C08L2201/02C08L2205/02C08L2205/035C08L25/06C08L79/08C08L33/16C08L23/12C08K13/02C08K3/34C08K2003/321C08K3/24C08K5/5399C08K3/22C08K3/38C08K5/521C08K3/26
Inventor 孟勇
Owner CHUZHOU YOUSHENG HIGH POLYMER MATERIAL
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