High load buffer material and preparation method thereof

A cushioning material and high-load technology, applied in the field of high-load cushioning materials and their preparation, can solve the problems of reduced cushioning performance, limited application, and large weight, and achieve high compressive strength, simple preparation method, and small deformability.

Inactive Publication Date: 2019-02-15
MIRACLL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a buffer support material, its weight is heavy. Although CPU products with higher hardness have a certain support strength, the buffer performance will drop sharply, which also limits its application in this field to a certain extent.

Method used

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  • High load buffer material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The density of 246.63kg is 0.18g / cm 3 The foamed thermoplastic polyurethane particles are mixed with 35kg of diphenylmethane diisocyanate, 60kg of 1000g / mol molecular weight polyether glycol, 10kg of ethylene glycol, 0.2kg of triethylamine, 0.5kg of silicon dioxide, After mixing evenly, fill it into the mold of the molding machine, close the mold, set the temperature to 80°C, and set the pressure to 0.6MPa. After curing for 2 minutes, cool with water at a temperature of 15°C for 5 minutes, and open the mold to obtain the cushioning material.

Embodiment 2

[0021] The density of 104.5kg is 0.32g / cm 3 The expanded thermoplastic polyester particles are mixed with 30kg of diphenylmethane diisocyanate, 65kg of 1000g / mol molecular weight polyether glycol, 8kg of ethylene glycol, 0.5kg of stannous diacetate, 1kg of zinc oxide, After mixing evenly, fill it into the mold of the molding machine, close the mold, set the temperature to 85°C, and set the pressure to 0.8MPa. After curing for 5 minutes, cool with water at a temperature of 15°C for 15 minutes, and open the mold to obtain the cushioning material.

Embodiment 3

[0023] The density of 167.4kg is 0.12g / cm 3 The foamed polypropylene particles are mixed with 38kg of toluene diisocyanate, 58kg of 1000g / mol molecular weight polyether glycol, 13kg of ethylene glycol, 0.6kg of dibutyltin dilaurate, and 2kg of talcum powder, and mix well Then fill it into the mold of the molding machine, close the mold, set the temperature at 65°C, set the pressure at 0.3MPa, cure for 8 minutes, cool with water at a temperature of 10°C for 6 minutes, and open the mold to obtain the cushioning material.

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Abstract

The invention belongs to the field of chemical materials, and in particular relates to a high load buffer material and a preparation method thereof. The high load buffer material is prepared from thefollowing raw materials in percent by mass based on total weight of the raw materials: 10-95% of foamed particles and 5-90% of a castable polyurethane elastomer. The high load buffer material has a light weight, excellent mechanical properties and wear resistance as well as high compressive strength and relatively low compressive deformation and is simple in preparation method simultaneously.

Description

technical field [0001] The invention belongs to the field of chemical material preparation, and in particular relates to a high-load buffer material and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) has a wide hardness range, excellent wear resistance, mechanical strength, water resistance, oil resistance, chemical corrosion resistance, mold resistance, and environmental friendliness, etc. Microcellular foamed thermoplastic polyurethane elastomer has excellent cushioning properties. Invention patent CN 102660113 A discloses a thermoplastic polyurethane microcellular elastomer and its preparation method, which is prepared by mixing expandable microspheres with TPU through injection molding process. Invention patent EP-A-692516 uses a mixture of chemical foaming agent and expandable microspheres to prepare microcellular thermoplastic polyurethane elastomer materials through injection molding. The buffer material prepare...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08J9/228
CPCC08J9/228C08J2375/04
Inventor 杨冲冲宋红玮王光阜赵玮王黑龙
Owner MIRACLL CHEM
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