ABS composition easy to process in laser welding and preparation method thereof

A laser welding and easy-processing technology, which is applied in the field of laser welding and easy-processing ABS composition and its preparation, can solve problems such as poor processing performance, achieve the effects of improving heat resistance, improving welding strength, and widening the process window

Inactive Publication Date: 2020-04-28
CHONGQNG PRET NEW MATERIAL +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the melt strength will make the processing performance of the material worse. At the same time, because the near-infrared absorber is carbon black, aniline black and other substances, the color of the ABS material is mostly black or dark.

Method used

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  • ABS composition easy to process in laser welding and preparation method thereof
  • ABS composition easy to process in laser welding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method for laser welding easy-to-process ABS composition, comprising the following steps:

[0035] (1) 99 parts of ABS resin (melt index is 15g / 10min), 1 part of reversible reaction crosslinking agent, 1 part of nano-indium tin oxide, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and lubricant silicone oil 0.1 Parts are added to a mixing mixer for pre-mixing, wherein, in the reversible reaction crosslinking agent, copolymer A is polymethyl methacrylate with side groups containing furan functional groups, and copolymer B is polystyrene with side groups containing maleimide , the mol ratio of the side group furan in the copolymer A and the side group maleimide in the copolymer B is 1:1, the control mixer speed is 100r / min, and the mixing time is 5min;

[0036] (2) The mixture obtained in step (1) is melted, blended, extruded and granulated by a twin-screw extruder, and the extrusion temperature is controlled to be 210-250°C, the screw speed is 30...

Embodiment 2

[0038] A preparation method for laser welding easy-to-process ABS composition, comprising the following steps:

[0039] (1) 80 parts of ABS resin (melt index is 15g / 10min), 20 parts of reversible reaction crosslinking agent, 0.5 part of nano-indium tin oxide, 0.1 part of antioxidant 1076, 0.1 part of antioxidant 618 and 0.1 part of lubricant silicone oil Parts are added to a mixing mixer for pre-mixing, wherein, in the reversible reaction crosslinking agent, copolymer A is an ethylene-methyl methacrylate copolymer containing furan functional groups in side groups, and copolymer B is a ethylene-methyl methacrylate copolymer containing maleimide in side groups. Styrene-acrylonitrile copolymer, the molar ratio of the side group furan in the copolymer A and the side group maleimide in the copolymer B is 2:1, the control mixer speed is 100r / min, and the mixing time is 20min;

[0040] (2) Melt, blend, extrude and granulate the mixture obtained in step (1) through a twin-screw extruder...

Embodiment 3

[0042] A preparation method for laser welding easy-to-process ABS composition, comprising the following steps:

[0043] (1) 85 parts of ABS resin (melt index is 25g / 10min), 15 parts of reversible reaction crosslinking agent, 0.4 part of nano-indium tin oxide, 0.2 part of antioxidant 1098, 0.3 part of antioxidant 618 and lubricant silicone oil 1 Parts are added to a mixing mixer for pre-mixing, wherein the copolymer A in the reversible reaction crosslinking agent is the ethylene-methyl methacrylate copolymer and polymethyl methacrylate blend (ethylene-methyl methacrylate) containing furan functional groups in the side group. The mass ratio of methyl acrylate copolymer to polymethyl methacrylate is 1:1), copolymer B is a styrene-acrylonitrile-maleic anhydride copolymer containing maleimide in the side group, and in copolymer A The mol ratio of the side group furan and the side group maleimide in the copolymer B is 3:1, the control mixer speed is 250r / min, and the mixing time is ...

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Abstract

The invention relates to an ABS composition easy to process in laser welding and a preparation method of the ABS composition. The composition comprises the following components in parts by weight: 80-99 parts of ABS resin, 1-20 parts of a reversible reaction cross-linking agent, 0.1-2 parts of nano indium tin oxide, 0.1-1 part of an antioxidant and 0.1-1 part of a lubricant. The reversible reaction cross-linking agent is composed of a copolymer A with a side group containing a furan functional group and a copolymer B with a side group containing maleimide. Compared with the prior art, after the reversible reaction cross-linking agent is added into the ABS composition provided by the invention, the welding strength of a product can be remarkably improved, and meanwhile, the welding efficiency is improved, so that the cost is reduced, and the ABS composition can be applied to interior and exterior ornaments of automobiles and the like.

Description

technical field [0001] The invention relates to the field of polymer modified materials, in particular to an ABS composition which is easy to process by laser welding and a preparation method thereof. Background technique [0002] ABS resin is a general-purpose thermoplastic engineering plastic, which is composed of three monomers of acrylonitrile, butadiene and styrene, so that it maintains the gloss and processing fluidity of polystyrene (PS), and has excellent Impact toughness, and acrylonitrile increases its rigidity and strength, and has excellent comprehensive properties. Therefore, it is widely used in automobiles, electronics, office equipment and other fields at present. In the application of automobile taillights, heat-resistant ABS resin is usually used. Due to its good toughness, high heat resistance and excellent processing performance, it has become the preferred material for rear taillights. Usually, the housing of the rear taillight is made of heat-resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L33/12C08L25/06C08K3/22C08L23/08C08L25/12C08L25/08C08L51/04C08L35/06
CPCC08L55/02C08K2201/011C08L2205/035C08L2201/08C08L33/12C08L25/06C08K3/22C08L23/0869C08L25/12C08L25/08C08L51/04C08L35/06
Inventor 诸金尹秀萍钱佳为鲁文芳梁亚男刘嘉任纪效均蔡青周文
Owner CHONGQNG PRET NEW MATERIAL
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