Slowly-recoverable polyurethane foam material

A foam material, slow rebound technology, applied in the field of polymer composite materials, can solve the problems of unhealthy consumers, production operators and environmental hazards, etc.

Inactive Publication Date: 2011-07-06
上海人脊橡塑科技制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Toluene diisocyanate (TDI) is a very toxic chemical, and transportation and storage must be handled as dangerous goods. During the production process, it is harmful to production operators and the environment. Toluene diisocyanate (TDI) remaining in the final product is also harmful to consumers. detrimental to health

Method used

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  • Slowly-recoverable polyurethane foam material
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  • Slowly-recoverable polyurethane foam material

Examples

Experimental program
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Embodiment Construction

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[0013] The foam stabilizer in the following examples 13 to 24 is selected from the NIAX silicone product produced by Momentive High-tech Materials Group of the United States, and the model is any two of L568, L590, L598, L618, L635, L638, L650, L682, L626, and L627. The foam stabilizer produced by American Air Products Company, the model is any two of DC2525, DC198, DC5188, DC5810, DC5906, DC5950, DC5986; the surfactant produced by German Gosmit company, the model is BF2370, BF2470 , B4900, B8002, B8040, B8050, and B8080, the ratio of any two parts by weight is 100:10-80, and the parts by weight of any two of the above-mentioned specified ones (components of the model) The combined sequence of ratios can be interchanged.

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PUM

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Abstract

The invention relates to a high molecular synthetic material, in particular to a slowly-recoverable polyurethane foam material which is widely used as a filler. The slowly-recoverable polyurethane foam material comprises the following components in part by weight: 100 parts of polyether, 60 to 100 parts of diphenyl-methane-diisocyanate, 0.5 to 2 parts of foam stabilizer, 0.03 to 0.3 part of gel catalyst, 0.03 to 0.3 part of foam catalyst, 0.05 to 0.5 part of foam / gel equilibrium catalyst and 1 to 5 parts of water. The reaction activity of the diphenyl-methane-diisocyanate (MDI) is higher than that of toluene diisocynate (TDI), and the MDI can be fully reacted in the preparation process, so the final polyurethane product prepared from the MDI has a few residual harmful substances and nearly no toxicity, and also has properties of better handfeel, longer duration of slow recovery, better physical property, and higher flame retardancy.

Description

technical field [0001] The invention relates to a polymer synthetic material, in particular to a polyurethane slow-rebound foam material which is widely used as a filling material. Background technique [0002] Polyurethane slow rebound foam material, also called memory foam, space cotton, inert cotton and viscoelastic foam material, is a special polyether added to the synthesis of ordinary soft polyurethane foam, so that the foam slowly deforms after being deformed by external force. Restore the original shape. Polyurethane slow-rebound foam material has excellent shock resistance, decompression, cushioning, sound insulation and other properties. It was first developed by NASA and used in astronaut seats to reduce the stress suffered by astronauts when they lift off and return to the ground. It is also widely used in anti-seismic and noise prevention of bedding, toys and transportation tools. [0003] Polyurethane (full name: polyurethane) is a polymer synthetic material,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08J9/08C08L75/08C08G101/00
Inventor 张帆张克咸
Owner 上海人脊橡塑科技制品有限公司
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