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Spraying-free high weather resistance anti-scraping PA/PMMA alloy and preparation thereof

A technology with high weather resistance, scratch resistance and spray-free application. It is applied in the field of polymer materials, which can solve the problems of poor scratch resistance, unsatisfactory scratch resistance, and material performance deterioration of PA, and achieve good scratch resistance, Strong shear sensitivity and effect of improving melt strength and fluidity

Inactive Publication Date: 2009-06-24
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. Insufficient weather resistance: Due to the existence of polybutadiene unsaturated double bonds in the ABS component, the alloy is more prone to thermal oxygen aging when used in interior and exterior trims of automobiles, especially exterior trims, resulting in deterioration of material properties
[0008] 2. Due to the poor scratch resistance of PA and the low pencil hardness of ABS, the PA / ABS alloy material still has the defect of unsatisfactory overall scratch resistance
[0009] 3. The water absorption is still too high, and the elastic modulus drops a lot

Method used

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  • Spraying-free high weather resistance anti-scraping PA/PMMA alloy and preparation thereof
  • Spraying-free high weather resistance anti-scraping PA/PMMA alloy and preparation thereof
  • Spraying-free high weather resistance anti-scraping PA/PMMA alloy and preparation thereof

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Embodiment Construction

[0056] Below in conjunction with embodiment the present invention is described in further detail.

[0057] (1) Take the following raw materials by weight ratio:

[0058] PA: 20-60%, PMMA: 20-70%, weathering toughening agent ASA, EPDM, SAS, POE: 10-50%, compatibilizer: 1-5%, antioxidant 1076:168=1:2 : 0.1-0.5%, lubricant EBS: 0.1-2.5%, the specific formula sees embodiment (seeing table 1).

[0059] (2) After weighing all the raw materials, put them into a high-speed mixer and mix them at high speed for 1-3 minutes.

[0060] (3) Low-speed discharge.

[0061] (4) Put the mixed raw materials into a twin-screw extruder to extrude and granulate. The rotating speed of the twin-screw machine is 180-600 rpm and the temperature is 170-240°C.

[0062] Implementation results (see Table 2, Table 3).

[0063]

[0064]

[0065]

[0066] The present invention uses the scratch resistance of pencil hardness evaluation material; Use 85 0 Matt surface with 20 0 The glossiness data ...

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Abstract

The invention relates to the technical field of polymer material, in particular to a free spraying weather resistant anti-friction PA / PMMA alloy and a preparation method thereof. The invention discloses a free spraying weather resistant anti-friction PA / PMMA alloy which includes amide-type polymer and acrylic esters polymer, and is characterized in that the total weight is taken as standard, and the PA / PMMA alloy also comprises 1-10% of compatilizer, wherein, the compatilizer is styrene and acrylonitrile quadripolymer containing epoxide group and alkyl acrylic ester bifunctional monomer or styrene tertiary polymer containing methacrylic acid and maleic anhydride bifunctional monomer. The invention also discloses the preparation method of the PA / PMMA alloy. The PA / PMMA alloy is superior to PA / ABS alloy on the characteristics of free spraying, weather resisting property and friction resistance, so as to be a potential environment protective and energy-saving alternate material in the field of inside and outside decorative parts of automobile.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a spray-free PA / PMMA alloy with high weather resistance and scratch resistance and a preparation method thereof. Background technique [0002] As one of the largest and most important varieties of engineering plastics, nylon has strong vitality, mainly because it can achieve high performance after modification; secondly, the industries such as automobiles, electrical appliances, communications, electronics, machinery, etc. The requirements are getting stronger and stronger, and the rapid development of related industries has promoted the process of high-performance engineering plastics. Nylon alloying is an important way to achieve high performance of nylon, and it is also the main means of manufacturing nylon special materials and improving nylon performance. The mainstream of the development of permanent engineering plastics. [0003] PA / ABS is an ideal material for ...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L33/12C08L25/08B29B9/02B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 辛敏琦李荣群田冶段春来邱卫美
Owner SHANGHAI KUMHO SUNNY PLASTICS
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