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High-gloss piano black pa/pmma alloy resin composition and preparation method thereof

A technology of alloy resin and piano black, which is applied in the field of high-gloss piano black PA/PMMA alloy resin composition and its preparation, can solve the problems of opaque alloy and inability to obtain piano black materials, and achieve the effect of excellent scratch resistance

Active Publication Date: 2021-08-24
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PA / PMMA alloy obtained by the above-mentioned technical scheme can only obtain high-gloss or matte materials of ordinary black or other colors by dyeing, and cannot obtain piano black materials.
The reason is that the blending of aliphatic PA resin and PMMA can only obtain an opaque alloy

Method used

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  • High-gloss piano black pa/pmma alloy resin composition and preparation method thereof
  • High-gloss piano black pa/pmma alloy resin composition and preparation method thereof
  • High-gloss piano black pa/pmma alloy resin composition and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0043] The preparation method of high-gloss piano black PA / PMMA alloy resin composition adopts the following steps:

[0044] (1) Weigh 70-80 parts of PA resin masterbatch, 15-25 parts of PMMA resin, 3-6 parts of toughening agent, 0.3-2.0 parts of black toner, 0.1-1.5 parts of antioxidant, weather resistance 0.2-1.5 parts of the agent, mixed evenly to obtain the premix;

[0045] (2) Put the premixed material into the twin-screw extruder, control the extrusion temperature to 230-260°C, and the screw speed to 200-500 rpm for melt extrusion, cooling and granulation to obtain the target product.

[0046] The following are more detailed implementation examples, through which the technical solutions of the present invention and the technical effects that can be obtained are further described.

Embodiment 1

[0048] The present embodiment provides a kind of high-gloss piano black PA / PMMA alloy resin composition, and its raw material composition is as follows:

[0049] Composition of PA resin masterbatch:

[0050] PA6I / 6T 90 parts

[0051] Compatibilizer (St:MMA:MAH=30:50:20) 10 parts

[0052] Antioxidant 1 part

[0053] Target product composition:

[0054]

Embodiment 2

[0056] The present embodiment provides a kind of high-gloss piano black PA / PMMA alloy resin composition, and its raw material composition is as follows:

[0057] Composition of PA resin masterbatch:

[0058] PA6I / 6T 90 parts

[0059] Compatibilizer (St:MMA:MAH=30:60:10) 10 parts

[0060] Antioxidant 1 part

[0061] Target product composition:

[0062]

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Abstract

The invention relates to a high-gloss piano black PA / PMMA alloy resin composition and a preparation method thereof, comprising the following components in parts by weight: PA resin masterbatch 70-80, PMMA resin 15-25, toughening agent 3-6, Black toner 0.3-2.0, antioxidant 0.1-1.5, weather resistance agent 0.2-1.5. Weigh the above PA resin and compatibilizer and mix evenly to obtain a premix, add the premix to a twin-screw extruder, melt and extrude, cool and granulate to obtain a modified PA masterbatch; then weigh according to the above ratio The remaining material and PA masterbatch are mixed evenly to obtain a premix, which is added to a twin-screw extruder, melted and extruded, cooled and granulated to obtain the target product. The invention has the appearance of high-gloss piano black, and simultaneously takes into account the excellent scratch resistance, weather resistance and dimensional stability of PMMA, and the excellent wear resistance and chemical resistance of PA. Because the obtained piano black PA / PMMA alloy resin has excellent mechanical properties and excellent scratch resistance, it is very suitable for automotive exterior parts without painting.

Description

technical field [0001] The invention relates to an alloy resin composition and a preparation method thereof, in particular to a high-gloss piano black PA / PMMA alloy resin composition and a preparation method thereof. Background technique [0002] The appearance of piano black is a popular design for the interior and exterior of automobiles in recent years. The appearance of piano black can be obtained in two ways: (1) spraying piano black paint on the surface of ABS or PC / ABS; (2) direct molding of piano black without spraying resin. The piano black surface obtained by the former has better scratch resistance and weather resistance, but requires a complicated painting process, which is inefficient and expensive. At the same time, painting is more harmful to the environment and workers. This process will gradually be replaced. The latter replaces. The latter can be formed into a product at one time, and has the characteristics of high efficiency, low cost, and environmental...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L33/12C08J3/22
Inventor 查超张锐周霆辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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