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PET/ABS composite material and preparation method thereof, and refrigerator door hinge and production method thereof

A technology of composite materials and mixtures, applied in the field of PET/ABS composite materials and its preparation, refrigerator door hinges and its production, can solve the problems of short service life, poor aging resistance, etc., and achieve improved mechanical properties, smooth surface, excellent Effect of aging resistance and mechanical properties

Pending Publication Date: 2022-01-28
勇气模具塑胶(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, ABS has the advantages of scratch resistance and not easy to deform, but has the disadvantage of poor aging resistance; as the refrigerator is an electrical product that is used for a long time, the refrigerator door hinge must have good aging resistance and fatigue resistance
[0004] In view of the related technologies mentioned above, the inventor believes that the refrigerator door hinge made of ABS material has the problems of poor aging resistance and short service life, which limits its use and development

Method used

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  • PET/ABS composite material and preparation method thereof, and refrigerator door hinge and production method thereof
  • PET/ABS composite material and preparation method thereof, and refrigerator door hinge and production method thereof
  • PET/ABS composite material and preparation method thereof, and refrigerator door hinge and production method thereof

Examples

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Effect test

Embodiment 1-18

[0042] As described in Table 1, the main difference of Examples 1-18 is that the proportioning ratio of raw materials is different.

[0043] Below taking embodiment 1 as example to illustrate, the concrete prescription that the PET / ABS composite material that the application discloses implements is: PET40kg, ABS 10kg, styrene-acrylonitrile copolymer-glycidyl methacrylate terpolymer 1kg , Nano-calcium carbonate 1kg, heavy calcium carbonate 3kg, nano-titanium dioxide 0.5kg.

[0044] The embodiment of the present application also discloses a preparation method of a PET / ABS composite material, which specifically includes the following steps:

[0045] S1, weigh the raw materials according to the formula and mix them. Stir for 8 minutes under the conditions of heating temperature of 90°C and stirring speed of 300r / min, so that the raw materials are fully mixed to form a mixture;

[0046] S2, add the mixture to the twin-screw extruder for extrusion, cooling, and pelletizing to obtai...

Embodiment 17

[0052] The difference between this embodiment and embodiment 15 is that nano-titanium dioxide is replaced by nano-silver powder.

Embodiment 18

[0054] The difference between this example and Example 15 is that the nano-titanium dioxide is replaced by a quaternary ammonium salt compound.

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Abstract

The invention relates to the technical field of high polymer materials, and particularly discloses a PET / ABS composite material and a preparation method thereof, and a refrigerator door hinge and a production method thereof. The PET / ABS composite material is prepared from the following raw materials in parts by weight: 40 to 80 parts of PET, 10 to 20 parts of ABS, 1 to 10 parts of styrene-acrylonitrile copolymer-glycidyl methacrylate terpolymer, 4 to 12 parts of a plasticizer and 0.5 to 2 parts of an antibacterial agent. The preparation method comprises the following steps: weighing corresponding parts of raw materials, fully mixing, carrying out melt extrusion, granulating, and drying to obtain the PET / ABS composite material. The PET / ABS composite material disclosed by the invention can be used for refrigerator door hinges. The production method comprises the following step: performing injection molding on the PET / ABS composite material in a mold to obtain the refrigerator door hinge. According to the invention, the excellent aging resistance of PET is utilized to make up for the characteristic of poor aging resistance of ABS, so that the compounded PET / ABS material has excellent aging resistance and mechanical properties, and the service life of the refrigerator door hinge is prolonged.

Description

technical field [0001] The application relates to the technical field of polymer materials, and more specifically, it relates to a PET / ABS composite material and a preparation method thereof, a refrigerator door hinge and a production method thereof. Background technique [0002] Most of the existing refrigerator door hinges are metal products such as aluminum and iron. As refrigerators are becoming more and more lightweight, the use of metal products in refrigerator door hinges becomes less and less. In recent years, plastic products have been widely used in refrigerator door hinges due to their excellent properties such as high specific weight strength, easy processing, and good thermal insulation performance. [0003] Current refrigerator door hinges are generally made of materials such as polypropylene (PP), styrene-butadiene-styrene copolymer (ABS) and high-impact polystyrene (HIPS). Among them, ABS has the advantages of being scratch-resistant and not easily deformed,...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L55/02C08L25/12C08K3/26C08K3/22C08K3/08C08K5/19F25D23/02
CPCC08L67/02F25D23/028C08K2003/265C08K2003/2241C08K2003/0806C08K2201/011C08L2205/08F25D2323/024C08L55/02C08L25/12C08K3/26C08K3/22C08K3/08C08K5/19
Inventor 石学明顾鸣钱志明
Owner 勇气模具塑胶(苏州)有限公司
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