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ODP-free low-GWP foaming agent polyurethane composite material for refrigerator

A polyurethane combination material and foaming agent technology, applied in the field of thermal insulation materials, can solve the problems of affecting appearance, mechanical strength, poor dimensional stability, poor adhesion, etc., to shorten the demoulding time, improve thermal insulation and refrigeration performance, and excellent The effect of overall performance

Inactive Publication Date: 2022-01-11
ZIBO LIANCHUANG POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Conversely, if the density is lower, the dimensional stability will be correspondingly poorer, and the foam cohesion will directly affect the performance of the product, such as polyurethane-filled products such as refrigerators and container refrigerators. If the adhesion is not good, it will affect the appearance and mechanical strength; such as spray foam, the poor adhesion will directly cause scrap

Method used

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  • ODP-free low-GWP foaming agent polyurethane composite material for refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Raw materials used in combination polyol formulations:

[0030] Polyether A: based on sucrose, the molecular weight is the polypropylene oxide polyether polyol of 500-800;

[0031] Polyether B: the polypropylene oxide polyether polyol of 500-800 molecular weight based on sorbitol;

[0032] Polyether C: the polypropylene oxide polyether polyol of 100-300 molecular weight based on ethylenediamine;

[0033] Polyether D: the polypropylene oxide polyether polyol of 200-600 molecular weight based on propylene glycol;

[0034] Catalyst: a foaming catalyst, a gel catalyst composition, wherein the foaming catalyst is selected from tetramethylhexamethylenediamine; the gel catalyst is selected from dimethylbenzylamine;

[0035] Blowing agent: including pentafluoropropane (HFC-245fa) and HFO-1233zd (trans-1-chloro-3,3,3-trifluoropropene);

[0036] Auxiliary material: dimethylpolysiloxane;

[0037] The above raw materials are used to prepare combined polyol according to a certai...

Embodiment 2

[0043] Raw materials used in combination polyol formulations:

[0044] Polyether A: based on sucrose, the molecular weight is the polypropylene oxide polyether polyol of 500-800;

[0045] Polyether B: the polypropylene oxide polyether polyol of 500-800 molecular weight based on sorbitol;

[0046] Polyether C: the polypropylene oxide polyether polyol of 100-300 molecular weight based on ethylenediamine;

[0047] Polyether D: the polypropylene oxide polyether polyol of 200-600 molecular weight based on propylene glycol;

[0048] Catalyst: a foaming catalyst, a gel catalyst composition, wherein the foaming catalyst is selected from tetramethylhexamethylenediamine; the gel catalyst is selected from dimethylbenzylamine;

[0049] Blowing agent: including pentafluoropropane (HFC-245fa) and HFO-1336mzz (1,1,1,4,4,4-hexafluoro-2-butene);

[0050] Auxiliary material: dimethylpolysiloxane;

[0051] The above raw materials are used to prepare combined polyol according to a certain for...

Embodiment 3

[0057] Raw materials used in combination polyol formulations:

[0058] Polyether A: based on sucrose, the molecular weight is the polypropylene oxide polyether polyol of 500-800;

[0059] Polyether B: the polypropylene oxide polyether polyol of 500-800 molecular weight based on sorbitol;

[0060] Polyether C: the polypropylene oxide polyether polyol of 100-300 molecular weight based on ethylenediamine;

[0061] Polyether D: the polypropylene oxide polyether polyol of 200-600 molecular weight based on propylene glycol;

[0062] Catalyst: a foaming catalyst, a gel catalyst composition, wherein the foaming catalyst is selected from tetramethylhexamethylenediamine; the gel catalyst is selected from dimethylbenzylamine;

[0063] Foaming agent: HFO-1233zd (trans-1-chloro-3,3,3-trifluoropropene);

[0064] Auxiliary material: dimethylpolysiloxane;

[0065] The above raw materials are used to prepare combined polyol according to a certain formula ratio, and then take 100 parts by w...

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Abstract

The invention discloses a zero-ODP low-GWP foaming agent polyurethane composite material for a refrigerator, relates to the technical field of thermal insulation materials, and aims to solve the problems that the polyurethane composite material has substantive features and remarkable progress; the foaming material can be used for thermal insulation of refrigerators in the refrigeration industry and pipelines or containers heated for a long time and can be applied as an intermediate layer of a composite element and for foaming in a hollow space of a shell of a household refrigerator. The foaming system has excellent thermal insulation performance and excellent comprehensive performance when being used for producing rigid polyurethane foam, and is particularly suitable for thermal insulation of household refrigerators, freezers and the like. Besides, the production efficiency is greatly improved, and the excellent heat preservation and refrigeration performance is improved; under the condition that production equipment and the process are not changed, the produced rigid polyurethane foam is small in heat conductivity coefficient while the demolding time is shortened and rapid demolding is achieved, and the excellent product heat preservation performance is achieved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a polyurethane composite material for refrigerators with zero ODP and low GWP foaming agent. Background technique [0002] Polyurethane rigid foam is a new type of synthetic material with thermal insulation and waterproof functions. Its thermal conductivity is only 0.018-0.025W / (m*K), which is the lowest thermal conductivity of all thermal insulation materials at present, so rigid polyurethane foam is used To replace traditional thermal insulation materials, it is mainly used in refrigeration equipment, building exterior wall insulation, roof waterproof insulation integration, cold storage insulation, pipeline insulation materials, building panels, refrigerated vehicles and cold storage insulation materials, etc., has become the dominant market. One of the heat preservation and energy saving products. [0003] Polyurethane foaming agent is the product of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/50C08J9/14C08L75/08C08G101/00
CPCC08G18/482C08G18/4833C08G18/5024C08J9/146C08J9/144C08G2101/00C08G2110/0025C08J2205/10C08J2203/142C08J2203/162C08J2203/182C08J2375/08
Inventor 朱谦
Owner ZIBO LIANCHUANG POLYURETHANE
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