ABS extrusion board material for automobiles and preparation method thereof

A technology for sheets and automobiles, applied in the field of ABS extrusion sheet materials for automobiles and their preparation, to achieve the effects of excellent chemical resistance, reduced rubber content, and excellent extrusion processing performance

Inactive Publication Date: 2010-09-01
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The automobile industry not only puts forward high requirements on the tensile properties and toughness of extrusion-grade ABS materials, but the usual extrusion-grade ABS cannot achieve both, but also has high requirements on the chemical resistance of materials (resistance to car perfume) Corrosion, etc.) also put forward higher requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0040] (1) Prepare materials according to the following components, and the contents of each component are as shown in Table 1: SAN: AN content 34wt%, Kumho Korea; bulk ABS: rubber particle size bimodal distribution, one particle size peak is 0.5 μm, and the other A particle size peak of 1.2 μm, Dow Chemical; emulsion ABS: ABS high rubber powder, rubber content is 50%, particle size 300-500nm, Korea Kumho; TPEE: DuPont, extrusion grade; compatibilizer: SAN -GMA, GMA content is 2%; EBS: commercially available; Antioxidant 168: Ciba Specialty Chemicals; Antioxidant 1076: Ciba Specialty Chemicals.

[0041] (2) Put the above-mentioned components into the high mixer according to the ratio in Table 1 and add 0.2wt% white oil of the total weight of raw materials and mix for 4 minutes, then extrude and granulate with a screw extruder, control the processing temperature at 245 ° C, and the screw The rotation speed is 450rpm, and the sample can be obtained.

Embodiment 5

[0053] A preparation method for ABS extruded sheet material for automobiles, the method comprising the following steps:

[0054] (1) Prepare materials according to the following components and contents: 50kgABS, 20kg SAN, 40kg TPEE, 5kg styrene-maleic anhydride copolymer (SMA) as compatibilizer, 3kg ethylene bis stearamide as lubricant, 1kg city Antioxidant 168 for sale. ABS is a three-modal particle size structure product composed of emulsion polymerized ABS and bulk polymerized ABS at a weight ratio of 3:2. Emulsion polymerized ABS is prepared by emulsion grafting method, and its rubber particle size is 0.2 μm. Bulk polymerized ABS is made of The bulk ABS with bimodal particle size distribution prepared by bulk method technology has one particle size peak of 0.5 μm and the other particle size peak of 0.9 μm; SAN is a styrene / acrylonitrile copolymer with a molecular weight of 120,000, of which propylene The nitrile content is 28% (wt%); TPEE is a thermoplastic polyester elas...

Embodiment 6

[0058] A preparation method for ABS extruded sheet material for automobiles, characterized in that the method comprises the following steps:

[0059] (1) Prepare materials according to the following components and contents: 20kgABS, 60kg SAN, 5kg TPEE, 1kgABS grafted glycidyl methacrylate (ABS-GMA) as compatibilizer, 0.1kg ethylene bisstearamide as lubricant , 0.1kg commercially available antioxidant 1076. ABS is a three-modal particle size structure product compounded by emulsion polymerization ABS and bulk polymerization ABS at a weight ratio of 7:5. Emulsion polymerization ABS is prepared by emulsion grafting method, and its rubber particle size is 0.5 μm. Bulk polymerization ABS is made of The bulk ABS with bimodal particle size distribution prepared by bulk method technology has a particle size peak of 0.7 μm and another particle size peak of 1.2 μm; SAN is a styrene / acrylonitrile copolymer with a molecular weight of 150,000, of which propylene The nitrile content is 35%...

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Abstract

The invention relates to an ABS extrusion board material for automobiles and a preparation method thereof. The board material comprises the following components in percentage by weight: 20 to 50 percent of ABS, 20 to 60 percent of SAN, 5 to 40 percent of TPEE, 1 to 5 percent of compatilizer, 0.1 to 3 percent of lubricant and 0.1 to 1 percent of antioxidant. The preparation method comprises the following steps of: adding 0 to 0.3 weight percent of white oil into the mixture, putting the mixture into a high mixer and mixing the mixture for 2 to 5 minutes, then discharging the mixture, and extruding and granulating the discharged mixture through a double-screw extruder to obtain the board material, wherein the cylinder temperature of the double-screw extruder is between 190 and 250 DEG C, and the rotational speed of screws is between 180 and 600rpm. Compared with the prior art, the board material has the advantages of predominant super toughness, ultrahigh rigidity, molding property, chemical resistance and the like.

Description

technical field [0001] The invention relates to a sheet material for automobiles and a preparation method thereof, in particular to an ABS extruded sheet material for automobiles and a preparation method thereof. Background technique [0002] ABS has good fluidity and balanced mechanical properties, and is suitable for various parts. However, the spline impact strength of general ABS cut from the extruded sheet is low, especially at low temperature. If some toughening agent is added to improve the impact strength, then the rigidity will decrease obviously, and vice versa. [0003] When the ABS sheet is used for the inner lining of the refrigerator, it has higher requirements for low-temperature impact. A material with a balance of properties has been sought in the refrigeration industry - a material with a balance of properties that will lead to better mechanical properties and processability. A material with a balance of various properties is characterized by a balance of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L25/12C08L67/02C08L35/06C08L51/00C08K5/20B29B9/06
Inventor 刘刚丁宗勤辛敏琦李荣群周霆邱卫美
Owner SHANGHAI KUMHO SUNNY PLASTICS
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