Composition, rigid polyurethane foam and refrigeration equipment

A composition and technology for combining polyethers, applied in the field of materials, can solve the problems that foamed materials cannot be stored for a long time, difficult practical application, etc., and achieve the effects of improving storage stability, good dimensional stability and low thermal conductivity

Active Publication Date: 2017-06-20
HEFEI MIDEA REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the use of LBA system foaming materials is instant mixing and immediate use. However, the foaming materials in the pipeline and storage tanks cannot be stored for a long time, which brings difficulties to practical applications.

Method used

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  • Composition, rigid polyurethane foam and refrigeration equipment
  • Composition, rigid polyurethane foam and refrigeration equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Raw material formula: 20 parts by weight of polyether polyol A, 20 parts by weight of polyether polyol B, 40 parts by weight of polyether polyol C, 4.2 parts by weight of polyether polyol D, 10 parts by weight of aromatic polyol Ester polyol (viscosity is 1200mpa.s, number average molecular weight is 550, hydroxyl value is 280mgKOH / g, functionality 2.7), 0.3 parts by weight of polycat201, 1.5 parts by weight of gel catalyst (PC-8), 0.5 parts by weight A quaternary ammonium salt, 2.0 parts by weight of silicon foam stabilizer (viscosity is 1011mpa.s), 1.5 parts by weight of water, 28 parts by weight of LBA, 3 parts by weight of cyclopentane, 5 parts by weight of HFC-245fa , 142.8 parts by weight of isocyanate (the isocyanate index is 1.05).

Embodiment 2

[0043] Raw material formula: 20 parts by weight of polyether polyol A, 20 parts by weight of polyether polyol B, 35 parts by weight of polyether polyol C, 8.9 parts by weight of polyether polyol D, 10 parts by weight of aromatic polyol Ester polyol (viscosity is 1200mpa.s, number average molecular weight is 550, hydroxyl value is 280mgKOH / g, functionality 2.7), 0.5 parts by weight of polycat201, 1.4 parts by weight of gel catalyst (PC-8), 0.5 parts by weight quaternary ammonium salt, 2.0 parts by weight of silicon foam stabilizer (viscosity of 1011mpa.s), 1.7 parts by weight of water, 35 parts by weight of LBA, 137.7 parts by weight of isocyanate (isocyanate index is 1.02).

Embodiment 3

[0045] Raw material formula: 15 parts by weight of polyether polyol A, 20 parts by weight of polyether polyol B, 40 parts by weight of polyether polyol C, 8.9 parts by weight of polyether polyol D, 10 parts by weight of aromatic polyol Ester polyol (viscosity is 1200mpa.s, number average molecular weight is 550, hydroxyl value is 280mgKOH / g, functionality 2.7), polycat201 of 0.8 weight part, gel catalyst (PC-8) of 1.2 weight part, 0.5 weight part quaternary ammonium salt, 2.0 parts by weight of silicon foam stabilizer (viscosity of 1011mpa.s), 1.6 parts by weight of water, 40 parts by weight of LBA, 141.4 parts by weight of isocyanate (isocyanate index is 1.01).

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Abstract

The invention discloses a composition, a rigid polyurethane foam material and a refrigeration device. The composition comprises combined polyether and isocyanate, wherein the combined polyether contains polyol, a foaming agent and a composite catalyst, wherein the foaming agent contains 1-chloro-3, 3, 3-trifluoropropene, and the composite catalyst contains a foaming catalyst Polycat201. The composition has long-term storage stability; and furthermore, the foam material obtained by adopting the composition has the characteristics of good flowability, low heat conduction coefficient, good dimensional stability and the like, so that an obtained product has a relatively good energy-saving effect.

Description

technical field [0001] The invention belongs to the technical field of materials, in particular, the invention relates to a composition, a rigid polyurethane foam material and refrigeration equipment. Background technique [0002] Trans-1-chloro-3,3,3-trifluoropropene (HFO-1233zd, referred to as LBA) has low boiling point, non-combustibility, zero ozone depletion potential (ODP) and acceptable low global warming potential ( GWP<7), especially compounds that can be used well as blowing agents for polyurethane foams due to its low thermal conductivity, are environmentally acceptable as HFC replacement materials. However, the LBA molecule contains double bonds, and its inherent chemical instability not only provides the desired low global warming potential and zero ozone depletion potential, but also its long-term storage in the combined polyether. Stability poses difficulties. Simultaneously, PC-5 (pentamethyldiethylenetriamine) or A-1[70% dipropylene glycol solution of b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/48C08J9/14C08G65/26C08G65/28C08L75/08
CPCC08G18/4018C08G18/4208C08G18/4804C08G65/2606C08G65/2609C08G65/2627C08J9/141C08J9/144C08J9/146C08J2203/14C08J2203/142C08J2203/202C08J2375/08C08J2475/06C08L75/08C08G2110/0025C08G2110/005Y02P20/10
Inventor 赵士虎李彩侠代贤俊王彪张静静
Owner HEFEI MIDEA REFRIGERATOR CO LTD
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