Halogen-free flame-retardant polyether type polyurethane elastomer material

A technology of polyurethane elastomer and polyether polyurethane, which is applied in the field of polymer elastomer materials, can solve the problems of simple start-up process, difficulty in achieving production efficiency and quality, and achieve the effect of soft hand feeling, low hardness and increased stability

Inactive Publication Date: 2019-07-09
中广核高新核材科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when many customers tried polyurethane elastomers to make wires and cables, they found that the start-up process was far less simple than PVC and low-smoke halogen-free polyolefins. Many cable manufacturers using polyurethane elastomers used special equipment and special molds, otherwise it would be very difficult Difficult to achieve both production efficiency and quality

Method used

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  • Halogen-free flame-retardant polyether type polyurethane elastomer material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~3

[0026] Examples 1-3: A halogen-free flame-retardant polyether polyurethane elastomer material, which consists of the following components by weight, as shown in Table 1:

[0027] Table 1

[0028] Example 1 Example 2 Example 3 Polyether polyurethane elastomer / part 55 50 50 Ethylene-butyl acrylate copolymer / part 15 20 20 Maleic anhydride / part 2 2 2 Double 25 / set 0.5 0.5 1 Aluminum diethylphosphinate / part 5.1 5.1 5 Piperazine Phosphate / part 19.4 19.4 20 Compton 445 / part 0.2 0.25 0.18 US Dover S-9228 / copy 0.3 0.25 0.35 Polymerized carbodiimide / part 1.5 1.4 1.6 Antioxidant / part 0.5 0.4 0.7

Embodiment 1

[0029] In the polyether polyurethane elastomer of Example 1, the polyether polyol is polyethylene glycol, and the antioxidant is a compound of an amine antioxidant and a high molecular weight phosphite antioxidant, and the compounding weight ratio is 2:3, the amine antioxidant is 4,4'-bis(phenylisopropyl)diphenylamine, and the high molecular weight phosphite antioxidant is bis(2,4-dicumylphenyl)pentaerythritol disulfide Phosphate.

Embodiment 2

[0030] In the polyether polyurethane elastomer of Example 2, the polyether polyol is polytetrahydrofuran ether glycol, and the antioxidant is a compound of an amine antioxidant and a high molecular weight phosphite antioxidant, and the compounding weight ratio is is 2:4,

[0031] The amine antioxidant is 4,4'-di(phenylisopropyl)diphenylamine, and the high molecular weight phosphite antioxidant is bis(2,4-dicumylphenyl)pentaerythritol diphosphite.

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Abstract

The invention discloses a halogen-free flame-retardant polyether type polyurethane elastomer material which is composed of the following components in parts by weight: 48-58 parts of polyether type polyurethane elastomer, 12-22 parts of ethylene-butyl acrylate copolymer, 1.5-2.5 parts of maleic anhydride, 0.4-1.2 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 4.5-5.1 parts of aluminum diethylphosphinate, 19-22 parts of piperazine phosphate, 0.1-0.3 part of Compton 445, 0.2-0.4 part of American Dover S-9228, 1.2-1.8 parts of polymerization type carbodiimide, and 0.3-0.8 part of antioxidant. The polyether type polyol in the polyether type polyurethane elastomer is one of polyethylene glycol or polytetrahydrofuran ether glycol. According to the halogen-free flame-retardant polyether type polyurethane elastomer material disclosed by the invention, the compatibility is improved, the stability of a chemical structure is improved, the tear resistance is also obviously improved, and meanwhile, thermal aging, hot-water resistance, oil resistance, flame retardancy and lower hardness are also achieved.

Description

technical field [0001] The invention relates to the technical field of polymer elastomer materials, in particular to a halogen-free flame-retardant polyether polyurethane elastomer material. Background technique [0002] TPU is a polymer material formed by co-polymerizing diisocyanate molecules such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with macromolecular polyols and low molecular polyols (chain extenders). Its molecular structure is a rigid block obtained by reacting diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with a chain extender and diisocyanates such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) Molecules and macromolecular polyols react to form flexible segments alternately. TPU has excellent characteristics of high tension, high tensile strength, toughness and aging resistance, and has been widely used in medical and health care, electronic appliances, industry and sports, etc. Wear resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L23/08C08L79/02C08K5/1539C08K5/5313
CPCC08L75/08C08L2201/02C08L2201/08C08L2201/22C08L2203/20C08L2205/03C08L23/0869C08L79/02C08K5/1539C08K5/5313
Inventor 唐伟
Owner 中广核高新核材科技(苏州)有限公司
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