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Refrigerator liner material, preparation method thereof and refrigerator liner

A refrigerator liner, resin technology, applied in sustainable manufacturing/processing, climate sustainability, chemical industry, etc., can solve the problems of high carbon emission and cost, insufficient mechanical properties and processing performance, etc., to improve chemical resistance properties, reduced cracking, high impact resistance

Active Publication Date: 2022-07-12
HISENSE(SHANDONG)REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned problems of high carbon emissions and high cost, insufficient mechanical properties and processing performance of the existing refrigerator liner materials, the present invention proposes a product with good chemical resistance, good processability, both rigidity and toughness, high cost performance, and unit carbon The modified PP material with low emission can be applied to the refrigerator liner, which can improve the chemical resistance of the refrigerator liner material and reduce the cracking phenomenon caused by chemical corrosion; it can also improve the toughness of the material and reduce the occurrence of stress whitening. Improve the direct pass rate of products; at the same time reduce product costs and improve the market competitiveness of products

Method used

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  • Refrigerator liner material, preparation method thereof and refrigerator liner
  • Refrigerator liner material, preparation method thereof and refrigerator liner

Examples

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preparation example Construction

[0036] The preparation method of the above-mentioned refrigerator liner material of the present invention comprises the following steps:

[0037] Preparation of composite nucleating agent: add rubber powder to the reactor, set the rotation speed to 200-500 rpm, add cross-linking assistant, and continue stirring for 1 hour to obtain a mixed emulsion, which is placed in an irradiation box for irradiation cross-linking Reaction, after the reaction is completed, a fully vulcanized rubber emulsion is obtained, wherein the dose of cobalt source is 0.5-5 Mrad, and the dose rate is 10-100 Gy / min;

[0038] The nucleating agent is added to the above-mentioned fully vulcanized rubber emulsion, and the coating agent is added dropwise under stirring state, and after continuous stirring for 1-2 hours, drying is carried out by a spray dryer, and the dried rubber powder is collected in a cyclone separator to obtain the The required composite nucleating agent, wherein the port temperature of t...

Embodiment 1

[0045] The material formula of the refrigerator liner in this example: 40 parts of homopolymer PP resin, 40 parts of ternary random copolymer PP resin, 10 parts of blended toughening resin, 3 parts of composite nucleating agent, 3 parts of compatibilizer, antioxidant 0.5 part of lubricant, 0.5 part of lubricant, of which, the homopolymeric PP resin is isotactic polypropylene, and the grade is selected from Sinopec T30S; the blending toughening resin is HIPS; the compatibilizer is maleic anhydride grafted PP and SEBS shared, Malay The ratio of acid anhydride grafted PP to SEBS is 1:1; the antioxidant is shared by antioxidant 1010 and antioxidant 168, and the ratio of antioxidant 1010 to antioxidant 168 is 2:1; the lubricant is silicone oil;

[0046] Compound nucleating agent formula: 90 parts of fully vulcanized powder styrene-butadiene rubber, 3 parts of octyl methacrylate, 10 parts of sorbitol nucleating agent 3988, and 10 parts of coating agent polymerized iron sulfate.

[0...

Embodiment 2

[0053] The material formula of the refrigerator liner in this example is the same as that in Example 1: 40 parts of homopolymerized PP resin, 40 parts of ternary random copolymerized PP resin, 10 parts of blended toughening resin, 3 parts of composite nucleating agent, and 3 parts of compatibilizer part, 0.5 part of antioxidant, 0.5 part of lubricant;

[0054] Compound nucleating agent formula: 70 parts of fully vulcanized powder styrene-butadiene rubber, 3 parts of octyl methacrylate, 30 parts of sorbitol nucleating agent 3988, and 5 parts of coating agent polyaluminum chloride.

[0055] The preparation steps of the refrigerator liner material in this example are the same as those in Example 1.

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Abstract

The invention provides a refrigerator liner material, a preparation method thereof and a refrigerator liner, belongs to the technical field of high polymer materials, and can solve the problems of high carbon emission and cost and insufficient mechanical properties and processability of the existing refrigerator liner material. The refrigerator liner material is prepared from the following components in parts by weight: 20 to 50 parts of homopolymerized PP resin, 20 to 50 parts of ternary random copolymerized PP resin, 5 to 20 parts of blended toughened resin, 1 to 5 parts of a composite nucleating agent, 0 to 5 parts of a compatilizer, 0.1 to 1 part of an antioxidant and 0.2 to 2 parts of a lubricant. The material can be applied to the refrigerator inner container, the chemical resistance of the material of the refrigerator inner container can be improved, and the cracking phenomenon caused by chemical corrosion is reduced; the toughness of the material can be improved, the stress whitening phenomenon is reduced, and the first pass yield of the product is improved; meanwhile, the product cost is reduced, and the market competitiveness of the product is improved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a refrigerator liner material and a preparation method thereof, and a refrigerator liner. Background technique [0002] According to the requirements of the group standard T / CAS 509-2021 "Guidelines for Life Cycle Assessment of Household Appliances" issued by the China Energy Conservation Association in 2021, in the carbon emissions of refrigerator products, the raw material acquisition stage is an important part of carbon emissions. According to the product carbon emission accounting report of the Institute of Home Appliances, the carbon emission of ABS raw materials is 3.126kg CO2eq / kg, the carbon emission of HIPS raw materials is 2.4523kg CO2eq / kg, the carbon emission of PP raw materials is 1.6311kg CO2eq / kg, and the price of PP materials is far lower than ABS and HIPS. [0003] As an important component of refrigerator products, the inner liner of the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L9/06C08K9/10C08K3/30C08K3/16C08K7/08C08K3/36
CPCC08L23/12C08L23/14C08K2003/3072C08K2003/164C08L9/06C08K9/10C08K3/30C08K3/16C08K7/08C08K3/36Y02P20/10
Inventor 韩冲常雪松谷洋刘钊扬白晴任大伟杜建强
Owner HISENSE(SHANDONG)REFRIGERATOR CO LTD