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ASA (acrylonitrile-styrene-acrylate) resin with favorable appearance performance and preparation method thereof

A technology of ASA resin and appearance, applied in the field of ASA resin and its preparation, can solve the problems of uneven iridescence and gloss, easy occurrence of white spots, low tinting strength, etc., and achieve simple process flow, excellent appearance performance and high production efficiency. Effect

Active Publication Date: 2011-08-24
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, provide a kind of ASA resin with excellent appearance performance and its preparation method, on the basis of keeping the original excellent weather resistance of ASA resin, improve the low coloring power of existing ASA resin , Defects such as white spot, macula, iridescence and uneven gloss are prone to appear on the surface of injection molding under strong light

Method used

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  • ASA (acrylonitrile-styrene-acrylate) resin with favorable appearance performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Scratch-resistant resin with excellent appearance properties is prepared from the following components:

[0043] (1) Preparation of ASA cross-linked modified graft copolymer:

[0044] ASA powder 50 parts

[0045] 40 parts of SAN resin

[0046] 10 parts of the third polymer

[0047] Initiator 0.8 parts

[0048] Antioxidant 0.3 parts

[0049] Lubricant 0.5 parts

[0050] Among them, ASA rubber powder is Kumho, South Korea;

[0051] The SAN resin is Zhenjiang Chimei SAN D168;

[0052] the third polymer is polycarbonate;

[0053] Initiator: BPO;

[0054] The lubricant is PETS;

[0055] The antioxidant is B900;

[0056] (1) ASA rubber powder, SAN resin, third polymer, initiator, antioxidant, and lubricant are fully mixed in a high-speed mixer, and then sent into a twin-screw extruder through a metering device, and the twin-screw extruder is controlled. The temperature of the screw extruder is 180~220°C, the length-to-diameter ratio of the screw is 40, and the scre...

Embodiment 2

[0066] Scratch-resistant resin with excellent appearance properties is prepared from the following components:

[0067] (1) Preparation of ASA cross-linked modified graft copolymer:

[0068] ASA powder 50 parts

[0069] 30 parts of SAN resin

[0070] 20 parts of the third polymer

[0071] Initiator 0.3 part

[0072] Antioxidant 0.3 parts

[0073] Lubricant 0.5 parts

[0074] Among them, ASA rubber powder is Kumho, South Korea;

[0075] The SAN resin is Zhenjiang Chimei SAN D168;

[0076] The third polymer is ethylene-methacrylate copolymer;

[0077] Initiator: BPO;

[0078] The lubricant is PETS;

[0079] The antioxidant is B900;

[0080] (1) ASA rubber powder, SAN resin, third polymer, initiator, antioxidant, and lubricant are fully mixed in a high-speed mixer, and then sent into a twin-screw extruder through a metering device, and the twin-screw extruder is controlled. The temperature of the screw extruder is 180~220°C, the length-to-diameter ratio of the screw is...

Embodiment 3

[0090] Scratch-resistant resin with excellent appearance properties is prepared from the following components:

[0091] (1) Preparation of ASA cross-linked modified graft copolymer:

[0092] ASA rubber powder 60 parts

[0093] 30 parts of SAN resin

[0094] 10 parts of the third polymer

[0095] Initiator 1.0 parts

[0096] Antioxidant 0.3 parts

[0097] Lubricant 0.5 parts

[0098] Among them, ASA rubber powder is Kumho, South Korea;

[0099] The SAN resin is Zhenjiang Chimei SAN D168;

[0100] the third polymer is polysiloxane;

[0101] Initiator: DCP;

[0102] The lubricant is EBS;

[0103] The antioxidant is B900;

[0104] (1) ASA rubber powder, SAN resin, third polymer, initiator, antioxidant, and lubricant are fully mixed in a high-speed mixer, and then sent into a twin-screw extruder through a metering device, and the twin-screw extruder is controlled. The temperature of the screw extruder is 180~220°C, the length-to-diameter ratio of the screw is 40, and the...

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Abstract

The invention discloses an ASA (acrylonitrile-styrene-acrylate) resin with favorable appearance performance and a preparation method thereof. The ASA resin comprises the following components in parts by weight: 10-50 parts of SAN (styrene-acrylonitrile), 50-90 parts of ASA crosslinking-modified graft copolymer, 0.2-0.6 part of light stabilizer, 0.2-1 part of antioxidant and 0.2-2 parts of lubricant. The preparation method comprises the following steps: stirring and mixing the raw materials, and sending the mixture into a double screw extruder; and under the actions of delivering, shearing andmixing of the screws, melting and compounding the material, extruding, drawing, cooling, and granulating to obtain the ASA resin with favorable appearance performance. The invention solves the problems of uneven luster, high tendency to irisation and white spotting, and low coloring power in the existing injection-molding ASA resin, thus has excellent appearance performance, and greatly widens the application range of the ASA resin in the fields of building materials, automobiles, electronic and electrical engineering, outdoor supplies, sports equipment and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an ASA resin with excellent appearance properties and a preparation method thereof. Background technique [0002] Acrylonitrile-acrylate-styrene (ASA) resin is an impact-modified resin formed by the copolymerization of styrene, acrylonitrile and acrylate terpolymer. It is mainly developed for the disadvantage of poor weather resistance of ABS resin. engineering plastics. It was first industrialized by German BASF company in 1962, followed by Japan's Asahi Kasei. At present, ASA is a main product of GE company in the United States. Its Geloy brand co-extruded raw materials were pushed to PVC color co-extruded in 2002. Profile market. The structure of ASA is similar to that of ABS, and it retains the excellent mechanical and physical properties of ABS as an engineering plastic. Since ASA resin introduces acrylate rubber without double bonds instead of butadiene rubber,...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08L25/12B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 周霆邱卫美宋治乾辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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