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Functional Alloy Resin

A chemical alloy and resin technology, which is applied in the field of chemical corrosion resistant functional resin new materials, can solve the problems of corrosion, cracking, and corrosion stress of refrigerator lining materials, etc.

Active Publication Date: 2019-04-30
CHONGQING AOCAI NEW MATERIAL CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, the refrigerator lining materials in domestic and foreign refrigerator manufacturing industries are mainly ABS (styrene-butadiene-styrene copolymer) and HIPS (high-impact polystyrene); these two materials do not have the ability to withstand LBA, pentafluoro Corrosion of propane and cyclopentane multi-foaming agents, so the selection of the fourth-generation foaming refrigerant LBA in the refrigerator manufacturing industry will cause corrosion and stress cracking of refrigerator lining materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of the self-made compatibilizer is as follows: GMA (glycidyl methacrylate) 1%-5%, MAH (maleic anhydride also known as maleic anhydride) 0.5-1.5%, DMF (Dimethylformamide) 0.2-0.5%, DCP (dicumyl peroxide) 0.05-0.1%, PE (polyethylene) 70-85%, SEBS (hydrogenated styrene-butadiene block copolymer) 5 -15%, Antioxidant 1010 0.4%-0.6% is obtained by kneading and grafting with a twin-screw extruder, and the sum of the mass percentages of the various raw material components of the compatibilizer is equal to 100%. Among them, GMA and MAH are polar functional groups required by compatibilizer products, DMF mainly controls the crosslinking reaction in the grafting reaction process, DCP acts as an initiator in the reaction process, and PE\SEBS is mainly the main material of compatibilizer products , Antioxidant 1010 (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester) is to prevent the oxidative degradation of the main material during...

Embodiment 1

[0035] According to mass percentage, PS 55%, AS 5%, PE 14%, EVA 10%, the aforementioned self-made compatibilizer 5%, SEBS 10%, polyethylene wax 0.4%, antioxidant 1010 0.2%, antioxidant 168 0.4%.

[0036] Pour all into a high-speed mixer and stir for 5 minutes, and then put the above-mentioned components that have been uniformly stirred directly into a twin-screw extrusion granulator for extrusion and granulation.

[0037] This embodiment is suitable for the double-layer co-extrusion coating bottom layer of special materials for HIPS refrigerators. After blister foaming, LBA, FC-245fa, and cyclopentane multi-foaming agent are isolated from corroding HIPS materials. This coating is a protective film.

[0038] Its physical index: the melting index is 5-6g / 10min, and the tensile strength is greater than 26Mpa. The notched impact strength is greater than 200J / m, the heat distortion temperature is greater than 75°C, the elongation at break is greater than 120%, and the chemical co...

Embodiment 2

[0040] According to mass percentage, PS 5%, AS 55%, PE 2%, EVA 15%, the aforementioned self-made compatibilizer 5%, SEBS 17%, polyethylene wax 0.3%, antioxidant 1010 0.3%, antioxidant 168 0.4%.

[0041] Pour all into a high-speed mixer and stir for 5 minutes, and then put the above-mentioned components that have been uniformly stirred directly into a twin-screw extrusion granulator for extrusion and granulation.

[0042] This embodiment is suitable for double-layer co-extrusion lamination of ABS refrigerator liner boards, and the secondary formula material is a lamination co-extrusion film. The main purpose of this lamination film is to protect the ABS board from LBA, HFC-245fa, cyclopentane multiple Corrosion of the foaming agent, the thickness of the film accounts for 10% of the thickness of the entire plate.

[0043] Its physical indicators: melt index 2.5-3.5g / 10min, tensile strength greater than 32MPa, notched impact strength greater than 180J / m, heat forming temperature...

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Abstract

Disclosed is functional alloy resin. The functional alloy resin resistant to 1-chlorine-3,3,3-trifluoro propylene, 1,1,1,3,3-5 fluorine propane and multivariate-body cyclopentane foaming refrigerants comprises, by weight, 2-55% of polystyrene, 2-55% of styrene-propylene copolymer, 1-35% of polyethylene, 10-25% of ethylene-vinyl acetate copolymer, 0-15% of ethylene-acrylic acid copolymer, 5-10% of a compatilizer, 5-25% of hydrogen styrene-butadiene block copolymer, 0.3-0.6% of polyethylene wax, 0.15-0.3% of 4(beta-(3,5-2 tertiary butyl-4-hydroxy phenyl)) propionate pentaerythritol ester and 0.4-0.6% of 3(2,4-2 tertiary butyl benzene base) phosphate. The functional alloy resin is applicable to double-layer extrusion of ABS (acrylonitrile butadiene styrene) and HIPS (high-impact polystyrene), reuse rate of material is quite economic, and good interfacial compatibility is achieved.

Description

technical field [0001] The invention relates to a new chemical corrosion-resistant functionalized resin material for the injection molding of refrigerator inner linings and refrigerator door end covers used in the refrigerator manufacturing industry, in particular to an anti-1-chloro-3,3,3-trifluoropropene ( LBA for short), 1,1,1,3,3-pentafluoropropane (HFC-245fa for short) and cyclopentane multi-component foaming refrigerants, which are highly corrosive refrigerator lining film resin and refrigerator door end cover injection plastic. Background technique [0002] Since the Montreal Protocol came into effect in 1998 and the Chinese government signed the "Kyoto Protocol" in 1997, people began to look for alternatives to CFC-11 (Freon-11) blowing agent. Since humans invented refrigeration technology, the first generation of refrigerants was CFC-11 (Freon-11), and then the transition product HCFC-141b was phased out, and then entered the second generation product, namely cyclo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08L25/12C08L23/06C08L23/08C08L53/02C08K5/134C08K5/526
CPCC08L25/06C08L25/12C08L2201/08C08L2205/025C08L2205/035C08L2205/08C08L23/06C08L23/0853C08L23/0869C08L53/025C08K5/1345C08K5/526
Inventor 吴南松
Owner CHONGQING AOCAI NEW MATERIAL CORP LTD
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