Heat-resisting thermoplastic halogen-free low-smoke flame retardant polyolefin plastic for wire and cable

A wire and cable, low-smoke flame-retardant technology, applied in the direction of insulated cables, plastic/resin/wax insulators, cables, etc., can solve problems such as cracking, unavoidable thermal stress cracking, and biased performance, and achieve reasonable selection. Effects of avoiding thermal stress cracking, improving flame retardancy and oxygen index
CN103524869AActive Publication Date: 2014-01-22CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF
Publication Date
2014-01-22

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Abstract

A heat-resisting thermoplastic halogen-free low-smoke flame retardant polyolefin plastic for wire and cable belongs to the technical field of insulation or sheath material for wire and cable in industrial high molecular material. The polyolefin plastic is composed of the following raw materials by weight: 20-60 parts of an ethylene vinyl acetate copolymer, 5-20 parts of polyethylene, 20-50 parts of a propylene based elastomer, 10-30 parts of a polymer compatibilizer, 120-160 parts of a flame retardant, 2-6 parts of a flame retardant synergistic agent, 0.8-2 parts of an antioxidant and 0.5-3 parts of a lubricant. The invention has the following advantages: the polyolefin plastic has excellent heat deformation resistance and heat aging resistance, and can meet the property requirements of wire and cable insulation and sheath material with usage temperature at 90-105 DEG C; and the polyolefin plastic gains better compatibility and crack resistance, has good flexibility, avoids the problem of thermal stress cracking, and can improve the flame retardant performance and oxygen index of flame retardant materials.
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Description

technical field

[0001] The invention belongs to the technical field of insulating or sheathing materials for wires and cables among industrial polymer materials, and specifically relates to a heat-resistant thermoplastic halogen-free low-smoke flame-retardant polyolefin plastic for wires and cables. Background technique

[0002] As known in the industry, polyvinyl chloride is the most widely used plastic material on wires and cables. This plastic is a halogen-containing material. When burned, it will release toxic and harmful gases and generate a large amount of smoke. It is vulnerable to damage to the environment and has secondary hazards. For example, poisonous and harmful gases at the scene of a fire can easily cause people to suffocate and die. Since the halogen-free low-smoke flame-retardant polyolefin does not contain halogen, it can make up for the above-mentioned shortcomings of polyvinyl chloride, so it has gradually attracted the attention and favor of the industry...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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