Polyurethane rubber PTMEG-F composite material and preparation method thereof

A technology of polyurethane rubber and composite material, applied in the field of polyurethane rubber PTMEG-F composite material and its preparation, can solve the problems of high density, large amount of consumables, easy size change, etc., and achieve the effect of low density, material saving and dimensional stability

Inactive Publication Date: 2015-12-09
黄文鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Existing rubber foam materials usually use chemical foaming agents such as azo (such as azoformamide), 4,4 bisbenzenesulfonyl hydrazide, and dinitrosopentamethylenetetramine as foaming agents. , by controlling the amount of foaming agent to control the foaming (expansion) ratio (that is, the size) of the foaming material, the disadvantage is that the size of the foaming material is difficult to control, and the shrinkage rate of the material after foaming is large, and the size is easy to change. And the calculation of mold ratio is difficult
If hard rubber (non-foaming rubber) is used, although the size is stable after molding, it has a high density and a large amount of consumables, resulting in a waste of resources.

Method used

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  • Polyurethane rubber PTMEG-F composite material and preparation method thereof

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Embodiment 1

[0022] A polyurethane rubber PTMEG-F composite material, including polyether polyol (PPG), isocyanate (MDI), crosslinking agent and foaming aids, wherein the foaming aids include catalysts, additives, water, surface active agent, triisocyanate, sulfur accelerator, foaming agent, internal lubricant, external lubricant, colorant.

[0023] The mass percentage of each component of the rubber composite material is: 50%-70% polyether polyol (PPG), 18%-50% isocyanate (MDI), 6%-9% crosslinking agent, 1-3% catalyst , 4-5% additives, 0.9-2% water, 1-10% surfactant, 1-4% triisocyanate, 1-3% sulfur accelerator, 2-4% foaming agent, 1-3% Internal lubricant, 2-3% external lubricant, 1-10% colorant.

[0024] The crosslinking agent adopts 1.4 butanediol or hexylene glycol.

[0025] The linking agent adopts HQEE (4-hydroxyethyloxyethyl-1-hydroxyethylphenylene ether)

[0026] The catalyst adopts metal stannous octoate, dibutyltin dilaurate and mercury acetate.

[0027] The catalyst uses non-...

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PUM

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Abstract

The invention relates to the fields of composite material and preparation thereof, and particularly relates to a polyurethane rubber PTMEG-F rubber composite material including polyether polyol (PPG), isocyanate (MDI), a crosslinking agent and foaming auxiliary agents, wherein the foaming auxiliary agents include a catalyst, auxiliary agents, water, a surfactant, triisocyanate, a sulfur promoting agent, a foaming agent, an internal lubricant, an external lubricant and a colorant; with the use of the preparation method, the composite material has low density and stable size compared with traditional hard rubber, and can greatly save materials.

Description

technical field [0001] The invention relates to the field of composite materials and preparation thereof, in particular to a polyurethane rubber PTMEG-F composite material and a preparation method thereof. Background technique [0002] Existing rubber foam materials usually use chemical foaming agents such as azo (such as azoformamide), 4,4 bisbenzenesulfonyl hydrazide, and dinitrosopentamethylenetetramine as foaming agents. , by controlling the amount of foaming agent to control the foaming (expansion) ratio (that is, the size) of the foaming material, the disadvantage is that the size of the foaming material is difficult to control, and the shrinkage rate of the material after foaming is large, and the size is easy to change. And the calculation of mold magnification is difficult. If hard rubber (non-foaming rubber) is used, although the size is stable after molding, the density is high and the amount of consumables is large, resulting in a waste of resources. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08J9/08C08J9/10C08J3/24
Inventor 黄文鹏
Owner 黄文鹏
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