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Polyurethane foam plastic and preparation method thereof

A foamed plastic and polyurethane technology, applied in the field of polyurethane foamed plastic and its preparation, can solve the problems of not using methyl formate and the like

Inactive Publication Date: 2015-02-11
上海抚佳精细化工有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blowing agents currently used to replace F-11 and HCFC-141b include cyclopentane, n-pentane, isopentane, water, methylene chloride, HFC-245fa, HFC-365mfc, and liquid carbon dioxide, but formic acid has not been used Application of Methyl Ester as Foaming Agent

Method used

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  • Polyurethane foam plastic and preparation method thereof
  • Polyurethane foam plastic and preparation method thereof

Examples

Experimental program
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Embodiment 1-7

[0030] The raw material that embodiment formula uses is as follows:

[0031] 1. Polyol component

[0032] Component (1): starting with sucrose and glycerin, polyether polyol with a hydroxyl value of 400-500 mgKOH / g;

[0033] Component (2): a polyether polyol with a hydroxyl value of 350-400 mgKOH / g, starting with sorbitol and glycerin;

[0034] Component (3): starting with sorbitol and glycerin, polyether polyol with a hydroxyl value of 450-530 mgKOH / g;

[0035] Component (4): polyether polyol with ethylenediamine as the initiator and a hydroxyl value of 740-800 mgKOH / g;

[0036] Component (5): a polyether polyol with a hydroxyl value of 380-450 mgKOH / g starting with diammonium toluene;

[0037]Component (6): starting with sucrose, glycerin, and vegetable oil, polyether polyol with a hydroxyl value of 410-470 mgKOH / g;

[0038] Component (7): Polyether synthesized from phosphorus oxychloride, glycerin, antimony trichloride, propylene oxide, and epichlorohydrin, with a hydro...

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Abstract

The invention relates to polyurethane foam plastic and a preparation method thereof, and belongs to the field of high molecular material. In the technology, methyl formate is used for replacing CFCs, HCFCs, HFCs, alkane, dichloromethane, water and other foaming agents, or methyl formate is used for being mixed with CFCs, HCFCs, HFCs, alkane, dichloromethane, water and the like to be used as a foaming agent for preparation of the polyurethane foam plastic.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polyurethane foam and a preparation method thereof. Background technique [0002] Polyurethane foam is a material made by chemical and physical changes of polyols and isocyanates under the action of catalysts, foaming agents, foam stabilizers, etc. It has the advantages of porosity, low relative density, high specific strength, low thermal conductivity, corrosion resistance, and easy manufacturing. According to the different raw materials used and the change of formula, it can be made into hard, soft, and semi-rigid polyurethane foam. And many other varieties. It is widely used in many fields of the national economy, especially in refrigeration, construction, heat insulation, furniture, bedding, transportation, packaging, energy saving and other departments. [0003] The core raw materials for the preparation of polyurethane foams are polyols, isocyanates, blowing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08G18/48C08G18/50C08G18/42C08J9/04
CPCC08G18/163C08G18/165C08G18/1816C08G18/1825C08G18/2036C08G18/2063C08G18/225C08G18/36C08G18/4018C08G18/4072C08G18/4211C08G18/4804C08G18/482C08G18/4829C08G18/4837C08G18/4883C08G18/5009C08G18/5021C08G18/5027C08G18/632C08G18/6696C08G2101/00C08J9/08C08J9/142C08J9/146C08J2203/02C08J2203/12C08J2203/142C08J2203/182C08J2203/202C08J2375/08
Inventor 李玉博
Owner 上海抚佳精细化工有限公司
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