Waterborne polyurethane elastomer

A water-based polyurethane and elastomer technology, applied in the direction of molecular sieve compounds, inorganic chemistry, non-metallic elements, etc., can solve the problems of the decline of mechanical properties of polyurethane

Inactive Publication Date: 2018-08-17
郑细玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In some fields, it is necessary to use the mechanical properties of polyurethane, especially water-based polyurethane. In some special occasions, such as the use of polyurethane in areas with large temperature differences between day and night, it will often cause the problem of a significant decline in the mechanical properties of polyurethane.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A water-based polyurethane elastomer, comprising the following components by weight:

[0055] 20 parts of ethylene glycol

[0056] Tripropylene glycol: 10 parts

[0057] 2-n-pentylpropane-1,3-diol: 5 parts

[0058] 30 parts of isocyanate

[0059] 1,1-Dimethyl-silanol 1-acetate: 2 parts

[0060] Methyl isocyanatoformate: 5 parts

[0061] Propyl isocyanate: 5 parts

[0062] Methyl 2,3-diethyl-1-(trimethylsilyl)-2-cyclopropene-1-carboxylate: 3 parts

[0063] Acrylate: 30 parts

[0064] Modified molecular sieve: 5 parts

[0065] Hydrophilic chain extender: 5 parts

[0066] Enhancer: 5 parts;

[0067] Defoamer: 2 parts

[0068] Leveling agent: 2 parts.

[0069] Described hydrophilic chain extender comprises following composition by weight:

[0070] Polyethylene glycol monoallyl ether: 5 parts

[0071] Methyltrimethylsilyldimethylketene acetal: 3 parts.

[0072] The reinforcing agent is triacetate propyl silane triol.

[0073] The defoamer is glycerol trihydrox...

Embodiment 2

[0093] A water-based polyurethane elastomer, comprising the following components by weight:

[0094] 20 parts of ethylene glycol

[0095] Tripropylene glycol: 10 parts

[0096] 2-n-pentylpropane-1,3-diol: 5 parts

[0097] 30 parts of isocyanate

[0098] 1,1-Dimethyl-silanol 1-acetate: 2 parts

[0099] Methyl isocyanatoformate: 5 parts

[0100] Propyl isocyanate: 5 parts

[0101] Methyl 2,3-diethyl-1-(trimethylsilyl)-2-cyclopropene-1-carboxylate: 3 parts

[0102] Acrylate: 30 parts

[0103] Modified molecular sieve: 5 parts

[0104] Hydrophilic chain extender: 5 parts

[0105] Enhancer: 5 parts;

[0106] Defoamer: 2 parts

[0107] Leveling agent: 2 parts.

[0108] Described hydrophilic chain extender comprises following composition by weight:

[0109] Polyethylene glycol monoallyl ether: 5 parts.

[0110] The reinforcing agent is triacetate propyl silane triol.

[0111] The defoamer is glycerol trihydroxypolyether.

[0112] The leveling agent is cellulose acetate...

Embodiment 3

[0131] A water-based polyurethane elastomer, comprising the following components by weight:

[0132] 20 parts of ethylene glycol

[0133] Tripropylene glycol: 10 parts

[0134] 2-n-pentylpropane-1,3-diol: 5 parts

[0135] 30 parts of isocyanate

[0136] 1,1-Dimethyl-silanol 1-acetate: 2 parts

[0137] Methyl isocyanatoformate: 5 parts

[0138] Propyl isocyanate: 5 parts

[0139] Methyl 2,3-diethyl-1-(trimethylsilyl)-2-cyclopropene-1-carboxylate: 3 parts

[0140] Acrylate: 30 parts

[0141] Modified molecular sieve: 5 parts

[0142] Hydrophilic chain extender: 5 parts

[0143] Enhancer: 5 parts;

[0144] Defoamer: 2 parts

[0145] Leveling agent: 2 parts.

[0146] Described hydrophilic chain extender comprises following composition by weight:

[0147] Methyltrimethylsilyldimethylketene acetal: 3 parts.

[0148] The reinforcing agent is triacetate propyl silane triol.

[0149] The defoamer is glycerol trihydroxypolyether.

[0150] The leveling agent is cellulose a...

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PUM

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Abstract

The invention discloses a waterborne polyurethane elastomer. The waterborne polyurethane elastomer comprises, by weight, 20 parts of ethylene glycol, 10 parts of tripropylene glycol, 5 parts of 2-n-amylpropane-1,3-diol, 30 parts of isocyanate, 2 parts of 1,1-dimethyl-silanol 1-acetate, 5 parts of methyl isocyanate, 5 parts of propylene isocyanate, 3 parts of methyl 2,3-diethyl-1-( trimethyl silicyl)-2-cyclopropene-1-carboxylic ester, 30 parts of acrylate, 5 parts of modified molecular sieve, 5 parts of hydrophilic chain extender, 5 parts of enhancer, 2 parts of defoaming agent and 2 parts of leveling agent. By the arrangement, the mechanical performance of the whole waterborne polyurethane elastomer can be kept in a good state under a large day and night temperature difference.

Description

technical field [0001] The invention relates to a polymer material, more specifically to a water-based polyurethane elastomer. Background technique [0002] Polyurethane is a kind of polymer whose main chain contains -NHCOO-repeating structural units. The English abbreviation is PU, including rigid polyurethane plastics, soft polyurethane plastics, polyurethane elastomers and other forms, and is divided into two categories: thermoplastic and thermosetting. Its raw materials are generally presented in the state of resin. [0003] Due to the strong polar carbamate group, insoluble in non-polar groups, it has good oil resistance, toughness, wear resistance, aging resistance and adhesion. Materials suitable for a wide temperature range (-50 to 150°C) can be prepared with different raw materials, which is very suitable for elastomers. [0004] In some fields, it is necessary to use the mechanical properties of polyurethane, especially water-based polyurethane. In some special o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F220/10C08G18/10C08G18/28C08G18/32C08G18/48C08G18/64C08G18/67C08G18/66C08G18/71C08K7/26C01B37/00C01B39/00
CPCC01B37/00C01B39/00C08F283/008C08G18/10C08G18/289C08G18/3206C08G18/4829C08G18/6484C08G18/6715C08G18/71C08K7/26C08G18/6677C08F220/10
Inventor 郑细玉
Owner 郑细玉
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