Environmentally friendly and energy-saving structural layer of refrigeration equipment and its application

A refrigeration equipment, environmental protection and energy-saving technology, applied in the field of refrigeration equipment environmental protection and energy-saving structural layer, can solve the problems of poor gloss, difficult to meet high-end taste, complicated preparation process, etc., and achieve the effect of good formability, good formability and high gloss

Active Publication Date: 2019-11-19
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent CN 103319834 discloses a modified HIPS material blended with HIPS, PE and SBS as the mouth frame of refrigeration equipment. Although it has good chemical corrosion resistance, the preparation process of the modified HIPS material is relatively complicated, and its gloss is poor, so it is difficult to Meet the high-end taste required by the appearance of refrigeration equipment parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] S1. 90 parts of polyether polyol H815, 3 parts of catalyst PC-5, 18 parts of HFO-1233zd, 14 parts of cyclopentane, 0.7 parts of methyl quaternary ammonium salt, 2.5 parts of silicon foam stabilizer B8445, 1.5 parts of water and 108 parts of isocyanate M20S were reacted to prepare rigid polyurethane foam.

[0032] S2. Blend 70 parts of ABS, 30 parts of EPDM polymer UMG DIALAC® ESA30, 1 part of antioxidant 1010 and 0.5 part of lubricant EBS, injection molding by injection molding machine, and process to prepare modified aromatic vinyl resin end caps.

[0033] The above-mentioned rigid polyurethane foam layer and the above-mentioned modified aromatic vinyl resin end cover are combined to form an environment-friendly and energy-saving structural layer of refrigeration equipment.

Embodiment 2

[0035] S1. Mix 80 parts of polyether polyol GR-635C, 2.5 parts of catalyst PC-5, 18 parts of HFO-1233zd, 6 parts of HFC-134a, 8 parts of HFC-365mfc, 0.5 parts of methyl quaternary ammonium salt, 2.0 parts of silicon foam Stabilizer AK8809, 1 part of water and 138 parts of isocyanate PAPI27 were reacted to prepare rigid polyurethane foam.

[0036] S2. Blend 60 parts of ABS, 40 parts of EPDM polymer DIALAC® ESA20, 1 part of antioxidant 1076 and 0.5 part of lubricant calcium stearate, and inject into injection molding machine to prepare modified aromatic vinyl resin terminal cover.

[0037] The above-mentioned rigid polyurethane foam layer and the above-mentioned modified aromatic vinyl resin end cover are combined to form an environment-friendly and energy-saving structural layer of refrigeration equipment.

Embodiment 3

[0039] S1. Mix 88 parts of polyether polyol H815, 3 parts of catalyst PC-5, 13 parts of HFO-1336mmz, 8 parts of cyclopentane, 3 parts of HFC-134a, 10 parts of HFC-365mfc, 0.7 parts of methyl quaternary ammonium salt, 2.0 Parts of foam stabilizer L-6952, 1.5 parts of water and 108 parts of isocyanate PM-200 were reacted to prepare rigid polyurethane foam.

[0040] S2. Blend 40 parts of ABS, 60 parts of EPDM polymer UMG E700N, 1.0 parts of antioxidant 1010 and 1.5 parts of lubricant EBS, and inject into injection molding machine to prepare modified aromatic vinyl resin end caps.

[0041] The above-mentioned rigid polyurethane foam layer and the above-mentioned modified aromatic vinyl resin end cover are combined to form an environment-friendly and energy-saving structural layer of refrigeration equipment.

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PUM

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Abstract

Disclosed are an environment-friendly, energy-saving structural layer for refrigeration equipment and an application thereof. The structural layer consists of an HFO-foamed, rigid polyurethane foam layer and a modified aromatic vinyl-based resin end cap. The modified aromatic vinyl-based resin is a melt blend of an acrylonitrile-butadiene-styrene (ABS) and an ethylene propylene diene monomer rubber-toughened vinyl cyanide-aromatic vinyl polymer. The ethylene propylene diene monomer rubber-toughened vinyl cyanide-aromatic vinyl polymer has a content by weight of 20-95% of the modified aromatic vinyl-based resin. The environment-friendly, energy-saving structural layer for refrigeration equipment prepared by the present invention overcomes the problem of material cracking in current refrigeration equipment when an HFO foaming agent is used in combination with an ABS end cap, thereby improving environment-friendly and energy-saving properties of refrigeration equipment. Since the structural layer comprises an ABS-containing material, the structural layer also provides good forming properties and gloss, allowing diversified and high-end structural design for refrigeration equipment.

Description

technical field [0001] The invention belongs to the technical field of refrigeration equipment manufacturing, in particular, the invention relates to an environment-friendly and energy-saving structural layer of refrigeration equipment. Background technique [0002] Refrigeration equipment generally uses rigid polyurethane foam as the insulation layer, and rigid polyurethane foam currently generally uses cyclopentane (CP), hydrofluoroalkanes (HCFC, HFC) and hydrofluoroolefins (HFO) as blowing agents. Since the fourth-generation blowing agent hydrofluoroolefin HFO has low greenhouse effect potential (GWP) and zero ozone depletion potential (ODP), the heat insulation layer using HFO blowing agent can improve the insulation performance of refrigeration equipment, effectively Reduce the energy consumption level of refrigeration equipment, so energy-saving and environmentally friendly HFO will gradually replace the previous blowing agents such as hydrofluorochlorocarbons (CP, HCF...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08L51/04F25D11/00F25D23/00
CPCC08L51/04C08L55/02F25D11/00F25D23/00Y02P20/10
Inventor 黄宝奎何超雄陈平绪魏金刚程庆王亮李玉虎林士文戴建建
Owner KINGFA SCI & TECH CO LTD
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