Thermoplastic polyurethane elastomer foam material and preparation method thereof

A technology of thermoplastic polyurethane and foaming materials, which is applied in the field of polymer materials, can solve the problems of decreased mechanical properties, reduced use performance, and low foaming ratio, so as to improve the strength and resistance to compression set, and solve the problems of short service life, The effect of improving usability

Active Publication Date: 2013-11-27
泉州三盛橡塑发泡鞋材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the narrow processing temperature range of thermoplastic polyurethane elastomers, foamable thermoplastic polyurethanes can generally only be manufactured with micro-foaming technology in the density range of 0.6-0.9g/cm 3 The outsole material of shoes is used to replace vulcanized rubber soles, so that the foamed thermoplastic polyurethane has the defect of extremely low expansion ratio, which in turn results in a smaller application range of foamed thermoplastic polyurethane. In this way, if ethylene- When vinyl acetate copolymer foaming material (EVA foaming material) is used ...

Method used

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  • Thermoplastic polyurethane elastomer foam material and preparation method thereof

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Effect test

Embodiment 1

[0021] A thermoplastic polyurethane elastomer foaming material in Example 1 is mainly prepared from the following raw materials in parts by weight: 100 parts of thermoplastic polyurethane elastomer, 10 parts of filler, 5 parts of foaming agent, 1.0 part of crosslinking agent, 1.0 part of cross-linking auxiliary agent, 0.1 part of anti-mildew and antibacterial property, 1.2 part of lubricant.

[0022] Among them, the thermoplastic polyurethane elastomer is a soft polyester thermoplastic polyurethane elastomer with a Shore hardness of 60-75HA, a Vicat softening point of 100-130°C, and a melt flow rate of 1.0-8.0g / 10min; the filler is Talc powder, stearic acid as a lubricant, azodicarbonamide as a foaming agent, bis-tert-butylperoxycumene as a crosslinking agent, triallyl isocyanurate as a crosslinking aid, The antifungal and antibacterial agent is 8-hydroxyquinolinone.

[0023] In the present embodiment, filler also can replace talcum powder with calcium carbonate or the mixing...

Embodiment 2

[0039]A thermoplastic polyurethane elastomer foaming material in the second embodiment is mainly prepared from the following raw materials in parts by weight: 80 parts of thermoplastic polyurethane elastomer, 40 parts of filler, 7 parts of foaming agent, 0.8 part of crosslinking agent, 1.2 parts of cross-linking auxiliary agent, 0.5 parts of mildew and antibacterial properties, and 1.5 parts of lubricant.

[0040] Among them, the thermoplastic polyurethane elastomer is a soft polyester thermoplastic polyurethane elastomer with a Shore hardness of 60-75HA, a Vicat softening point of 100-130°C, and a melt flow rate of 1.0-8.0g / 10min; the filler is Calcium carbonate, lubricant is stearic acid, foaming agent is azodicarbonamide, crosslinking agent is dicumyl peroxide, crosslinking agent is trimethylolpropane trimethacrylate, mildew and antibacterial The agent is nano silver antibacterial agent.

[0041] The preparation method of a kind of thermoplastic polyurethane elastomer foam...

Embodiment 3

[0050] A thermoplastic polyurethane elastomer foaming material in the third embodiment is mainly prepared from the following raw materials in parts by weight: 90 parts of thermoplastic polyurethane elastomer, 25 parts of filler, 5 parts of foaming agent, 0.9 part of crosslinking agent, 1.2 parts of cross-linking auxiliary agent, 1.0 parts of anti-mold and antibacterial properties, and 1.5 parts of lubricant.

[0051] Among them, the thermoplastic polyurethane elastomer is a soft polyester thermoplastic polyurethane elastomer with a Shore hardness of 60-75HA, a Vicat softening point of 100-130°C, and a melt flow rate of 1.0-8.0g / 10min; the filler is Calcium carbonate, unsaturated fatty acid zinc salt as lubricant, azodicarbonamide as foaming agent, dicumyl peroxide as crosslinking agent, trimethylolpropane trimethacrylate as crosslinking aid, anti The mildew antibacterial agent is an organosilicon quaternary ammonium salt antibacterial agent.

[0052] A kind of preparation met...

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Abstract

The invention discloses a thermoplastic polyurethane elastomer foam material, which is prepared from the following raw materials by weight: 80-100 parts of a thermoplastic polyurethane elastomer, 10-40 parts of a filler, 4-7 parts of a foaming agent, 0.6-1.5 parts of a cross-linking agent, 1.0-1.5 parts of a cross-linking assistant, 0.1-1.0 part of a mildew proof antibacterial agent and 1.2-2.0 parts of a lubricant. Adopting the above technical scheme, the invention has the beneficial effects of improving the foam expansion of the thermoplastic polyurethane foam material, expanding the scope of usage of the polyurethane foam material, and realizing compression deformation of a finished product produced from the thermoplastic polyurethane foam at no more than 35%, which is unmatched by an EVA foam material with equivalent foam expansion and similar elasticity. In addition, the foam material improves the performance of existing traditional foam materials, and solves the defects that polyester-type thermoplastic polyurethane elastomer has short service life, easily goes moldy on the product surface and generates mechanical performance loss in the field and damp and hot environment.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a thermoplastic polyurethane elastomer foaming material and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) is a special material that integrates the high elasticity of rubber and the molding processability of plastic, and has excellent comprehensive performance; compared with other thermoplastic elastomers, TPU has high strength, good elasticity, and wear resistance. , cold resistance, oil resistance, acid and alkali resistance, hydrolysis resistance, aging resistance, weather resistance, UV resistance, tear resistance, bending resistance, environmental protection and other excellent properties, widely used in industry, automobile manufacturing, shoemaking, wires and cables. [0003] However, due to the narrow processing temperature range of thermoplastic polyurethane elastomers, foamable thermoplastic polyurethanes can gen...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K13/02C08K3/34C08K3/26C08K5/14B29C44/00B29C35/00B29B7/00
Inventor 林为王月香
Owner 泉州三盛橡塑发泡鞋材有限公司
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