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Organosilicone-modified polyurethane foam

A technology of polyurethane foam and silicone modification, applied in the field of polyurethane foam, can solve the problems of inability to have good flame retardant function, poor high and low temperature resistance, etc., and achieve good high and low temperature resistance, good elasticity, and good solvent resistance. Effect

Inactive Publication Date: 2018-02-02
德清舒华泡沫座椅有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem of poor high and low temperature resistance of polyurethane foam in the prior art and the inability to better realize the flame retardant function, and to provide a polyurethane foam that can withstand high and low temperature, has good weather resistance, and has a flame retardant function. Silicone modified polyurethane foam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A silicone-modified polyurethane foam, said silicone-modified polyurethane foam comprises the following components in parts by weight: 40 parts of polyester polyol, 30 parts of hydroxyl-terminated fluorosilicone oil, dimethylene phenylene diisocyanate 55 parts, 12 parts of triethanolamine, 8 parts of antioxidant TNP, 3 parts of deionized water, 8 parts of sodium dodecylbenzenesulfonate, and 1.5 parts of n-pentane.

[0023] The preparation method of the hydroxyl-terminated fluorosilicone oil is as follows: 100 parts of trimethyltris(3-fluoropropyl)cyclotrisiloxane, 15 parts of deionized water, 2 parts of strong Acidic cation exchange resin, 0.5 parts of concentrated sulfuric acid were added to the reaction kettle in turn, polymerized for 3 hours, filtered to remove the strong acidic cation exchange resin after the reaction, washed to neutral, put into a vacuum oven with a vacuum of 2 mmHg and dried for 8 hours, to obtain hydroxyl-terminated fluorosilicone oil.

[0024] ...

Embodiment 2

[0027] A silicone-modified polyurethane foam, said silicone-modified polyurethane foam comprises the following components in parts by weight: 65 parts of polyester polyol, 45 parts of hydroxyl-terminated fluorosilicone oil, 1,4-cyclohexane 75 parts of diisocyanate, 23 parts of triethanolamine, 12 parts of antioxidant TPP, 5 parts of deionized water, 15 parts of sodium octadecyl sulfate, and 4 parts of n-hexane.

[0028] The preparation method of the hydroxyl-terminated fluorosilicone oil is as follows: 100 parts of trimethyltris(3-fluoropropyl)cyclotrisiloxane, 25 parts of deionized water, 8 parts of strong Acidic cation exchange resin, 1.5 parts of concentrated sulfuric acid were added to the reaction kettle in turn, polymerized for 3 hours, filtered to remove the strong acidic cation exchange resin after the reaction, washed to neutral, put into a vacuum oven with a vacuum of 2 mmHg and dried for 8 hours, to obtain hydroxyl-terminated fluorosilicone oil.

[0029] The hydrox...

Embodiment 3

[0032]A silicone-modified polyurethane foam, said silicone-modified polyurethane foam comprises the following components in parts by weight: 45 parts of polyester polyol, 35 parts of hydroxyl-terminated fluorosilicone oil, methyl-2,4- 58 parts of diisocyanate, 14 parts of triethanolamine, 10 parts of antioxidant 164, 3 parts of deionized water, 10 parts of sodium stearate, 1.5 parts of dichlorodifluoromethane.

[0033] The preparation method of the hydroxyl-terminated fluorosilicone oil is as follows: 100 parts of trimethyltris(3-fluoropropyl)cyclotrisiloxane, 20 parts of deionized water, 6 parts of strong Acidic cation exchange resin, 1 part of concentrated sulfuric acid was added to the reaction kettle in turn, polymerized for 3 hours, filtered to remove the strong acidic cation exchange resin after the reaction, washed with water until neutral, and dried in a vacuum oven with a vacuum of 2 mmHg for 8 hours, to obtain hydroxyl-terminated fluorosilicone oil.

[0034] The hyd...

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Abstract

The invention discloses organosilicone-modified polyurethane foam. The organosilicone-modified polyurethane foam comprises, by weight, 40-65 parts of polyester polyol, 30-45 parts of hydroxyl end-capping fluorine-silicon oil, 55-75 parts of isocyanate, 12-23 parts of triethanolamine, 8-12 parts of antioxidants, 3-5 parts of deionized water, 8-15 parts of surfactants and 1.5-4 parts of foaming agents. The organosilicone-modified polyurethane foam has the advantages of good high-and-low temperature resistance performance, flame resistance effect, high elasticity, and high weather and solvent resistance.

Description

technical field [0001] The invention relates to a polyurethane foam, in particular to a silicone-modified polyurethane foam. Background technique [0002] Polyurethane material is currently the best performance insulation material in the world. A class of polymers whose main chain contains -NHCOO- repeating structural units. English abbreviation PU. It is polymerized from isocyanate (monomer) and hydroxyl compound. Due to the strong polar carbamate group, insoluble in non-polar groups, it has good oil resistance, toughness, wear resistance, aging resistance and adhesion. Polyurethane elastomers are used as rollers, conveyor belts, hoses, auto parts, shoe soles, synthetic leather, wires and cables, and medical artificial organs, etc.; soft foams are used as pads for vehicles, homes, and clothing; Thermal insulation, sound absorption, packaging, insulation and low-foaming synthetic wood, coatings for advanced vehicles, furniture, wood and metal protection, pool dams and bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/61C08G18/42C08J9/14C08G77/24C08G77/16C08G101/00
CPCC08G18/61C08G18/4009C08G18/42C08G77/16C08G77/24C08G2101/00C08J9/141C08J9/143C08J2203/14C08J2203/144C08J2367/06
Inventor 卢伟
Owner 德清舒华泡沫座椅有限公司
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