Inflaming retarding thermoplastic polyurethane elastic body

A thermoplastic polyurethane and elastomer technology, applied in the field of flame retardant thermoplastic polyurethane elastomer, can solve the problems of poor comprehensive performance and reduce mechanical properties such as tensile strength elongation at break, etc., to achieve good mechanical properties, good wear resistance, The effect of high tensile strength and elongation at break
CN102757636AActive Publication Date: 2012-10-31NINGBO QINGHU ELASTOMER SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO QINGHU ELASTOMER SCI & TECH
Publication Date
2012-10-31

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Abstract

The invention discloses an inflaming retarding thermoplastic polyurethane elastic body which comprises the following components by weight percentage of: 60-80% of polyester thermoplastic polyurethane, 10-30% of halogen-free fire retardant, 1-10% of inflaming retarding synergist, 1-10% of chain extender, 0.1-2% of antioxidant and less than 5% of non-inflaming-retarding additive. According to the inflaming retarding thermoplastic polyurethane elastic body disclosed by the invention, the good inflaming retarding performance can be achieved and relatively good mechanical performances of previous high tensile strength, cracking elongation at break and the like of a TPU (Thermoplastic Polyurethane) raw material; the inflaming retarding thermoplastic polyurethane elastic body has the advantages of good wear resistance, tearing resistance, hydrolysis resistance and anti-ageing performance; and the inflaming retarding thermoplastic polyurethane elastic body does not contain halogens and heavy metal and particularly does not contain lead, cadmium, mercury, hexavalent chromium heavy metal, as well as poly-brominated diphenyl ether and poly-brominated biphenyls, so that the European Union RoH2.0 instruction requirements are met.
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Description

technical field

[0001] The invention belongs to the field of polymer materials, and in particular relates to a flame-retardant thermoplastic polyurethane elastomer. Background technique

[0002] TPU, or thermoplastic polyurethane, is a new type of organic polymer synthetic material, which has excellent elongation recovery, cold resistance, oil resistance, bending resistance, ozone aging resistance, etc., especially excellent wear resistance, and is widely used in automobiles, wires and cables. , medicine, footwear and other industrial fields. However, the flame retardancy of thermoplastic polyurethane is poor. Once burned, the flame is very violent and accompanied by thick black smoke, accompanied by severe droplet phenomenon, which has the risk of expanding the fire. In addition, thermoplastic polyurethane has poor hydrolysis resistance and aging resistance.

[0003] One of the methods to improve the flame retardancy of thermoplastic polyurethane is to add flame retardant...

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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