Radiation cross-linked low-smoke halogen-free red phosphorus-free flame retardant material and its application

Abstract

The invention discloses a radiation cross-linked low-smoke halogen-free red phosphorus-free flame retardant material, which comprises the following components of: by weight, 10-80 parts of ethene-vinyl acetate copolymer, 5-30 parts of ethylene-octene copolymer and / or ethene-butene copolymer and / or terpolymer EP rubber, 0-100 parts of polyethylene, 1-20 parts of a polymer compatilizer, 0.5-10 parts of organosilicon polymer, 1-10 parts of a composite anti-oxidant, 0-200 parts of aluminium hydroxide and / or magnesium hydroxide and / or modified aluminium hydroxide and / or modified magnesium hydroxide, 0.1-100 parts of high molecular weight ammonium polyphosphate and / or 0.1-50 parts of a phosphate ester fire retardant and / or 0.1-50 parts of MCA. The material provided by the invention reaches American UL224VW-1 standard when applied in thermal shrinkable tubes, reaches American UL1581VW-1 standard when applied in electric wires and cables, contains no halogen or red phosphorus, and is environmentally friendly.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant environmental protection material and its application, in particular to an irradiation cross-linked low-smoke, halogen-free, red phosphorus-free flame-retardant material and its application. Background technique [0002] As early as the 1970s, various flame-retardant materials have been developed at home and abroad, but most of these flame-retardant materials contain halogens. Although they have a certain flame-retardant effect, when a fire occurs, the burning halogen-containing High-quality flame-retardant materials will produce toxic gases and smog, which not only affects the smooth progress of disaster relief work, but also causes "secondary disasters" to life and property. [0003] So people study and use magnesium hydroxide and aluminum hydroxide as flame retardants. Although products using this flame retardant do not produce toxic smoke when burned, magnesium hydroxide and aluminum hydroxide...

AI Technical Summary

Problems solved by technology

"Research Progress on Microencapsulated Red Phosphorus Flame Retardant" in "China Plastics", Volume 16, Issue 1, 2002, introduced red phosphorus flame retardants, which mentioned that red phosphorus can undergo a slow chemical reaction with air in a humid environment , produces highly toxic phosphine (PH3) gas, and red phosphorus dust is explosive, and will spontaneously ignite due to high internal heat when stored in large quantities, resulting in potential safety accidents

In addition, the inherent purplish red color of red phosphorus greatly limits its application, and flame retardant materials containing red phosphorus will emit a large amount of irritating gas during production and combustion