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Alloy material for automobile wheel hub decoration cover and preparation method thereof

A technology for automotive wheels and alloy materials, applied in the field of polymer chemistry, can solve problems such as poor mechanical properties and chemical stability, and achieve the effects of good processing fluidity, improved interphase compatibility, and wide processing window

Active Publication Date: 2020-10-09
中广核俊尔(上海)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problems in the prior art, the invention provides a kind of alloy material and preparation method thereof for automobile hub decoration cover, and the alloy material and preparation method thereof for this kind of automobile wheel decoration cover should solve existing The technical problem of poor mechanical properties and chemical stability of the alloy material used for the wheel hub trim in the technology

Method used

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  • Alloy material for automobile wheel hub decoration cover and preparation method thereof
  • Alloy material for automobile wheel hub decoration cover and preparation method thereof
  • Alloy material for automobile wheel hub decoration cover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]According to the data in Example 1 in Table 1, weigh maleic anhydride grafted polypropylene PP-MAH 1001 and polymethyl methacrylate CM 205, stir and mix evenly, and then the composite interfacial compatibilizer 1 can be prepared.

Embodiment 2

[0044] According to the data in Example 2 in Table 1, weigh maleic anhydride-grafted polypropylene PP-MAH 5001 and ethylene-vinyl acetate EVA-460, stir and mix evenly, and then compound interface compatibilizer 2 can be prepared.

Embodiment 3

[0046] According to the data in Example 3 in Table 1, weigh maleic anhydride grafted polypropylene PP-MAH 1001 and ethylene-vinyl acetate EVA-460, stir and mix evenly, and then the composite interfacial compatibilizer 3 can be prepared.

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Abstract

The invention relates to an alloy material for an automobile hub decoration cover. The alloy material comprises the following raw materials by weight percentage: 30-50% of polypropylene, 10-30% of polyamide, 10-25% of a compound interfacial compatibilizer and 10-30% of an inorganic filling body; the compatibilizer comprises a polypropylene graft and an acrylic acid segmented copolymer. The invention also provides a preparation method of the alloy material. The mixed polypropylene, polyamide and compound interfacial compatibilizer are put into a main feeding bin of a tightly meshed co-rotating twin screw extruder, and are added into a cylinder of the extruder through a feeding screw, the inorganic filling body is added into the extruder from a lateral feeding port, and the alloy material for the automobile hub decoration cover is obtained after melt extrusion, cooling, pelleting, and drying. The tensile strength and the bending strength of the alloy material are both close to those of a wet polyamide material, furthermore, the flexural modulus is increased by 150% or above and is as high as 3800 MPa, and meanwhile, the shrinking percentage of the material is low.

Description

technical field [0001] The invention belongs to the field of macromolecule chemistry, and relates to an alloy material, in particular to an alloy material for an automobile wheel hub decoration cover and a preparation method thereof. Background technique [0002] Polyamide PA is a common engineering plastic with high mechanical properties, good impact resistance and heat resistance. It is often used in parts around automobile engines, interior and exterior parts of automobiles, etc. Strong polarity, easy to form hydrogen bonds with water molecules, resulting in a significant reduction in the mechanical properties of the material and serious deformation of the workpiece. The usual solution is to add a certain amount of inorganic mineral fillers to reduce its water absorption to a certain extent. But this inevitably has a negative impact on the strength of the material. [0003] Polypropylene PP is a non-polar general-purpose plastic, and its molecular chain does not contain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L77/02C08L51/06C08L33/12C08L31/04C08K7/08C08K3/34B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08K2201/011C08K2201/014C08L23/12C08L2205/035C08L2205/08C08L77/02C08L51/06C08L33/12C08K7/08C08L31/04C08K3/34
Inventor 郑云龙黄志杰杨仓先
Owner 中广核俊尔(上海)新材料有限公司
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