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ABS composition for improving ultrasonic welding strength, and preparation method thereof

An ultrasonic welding and composition technology, which is applied in the field of polymer modified materials, can solve problems such as affecting the processing and forming properties of materials, and achieve the effects of broadening applications, ensuring welding strength, and improving heat resistance.

Pending Publication Date: 2020-05-12
SHANGHAI PRET COMPOSITES +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since a high content of mica powder inorganic filler needs to be added to the modified ABS resin, it will affect the processing and molding performance of the material.

Method used

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  • ABS composition for improving ultrasonic welding strength, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An ABS composition for improving ultrasonic welding strength and a preparation method thereof, comprising the following steps:

[0027] (1) Add 99 parts of ABS resin (melt index is 15g / 10min), 1 part of reversible reaction cross-linking agent, 10100.1 parts of antioxidant and 0.1 part of antioxidant 168 into a mixing mixer for pre-mixing, wherein, reversible reaction cross-linking agent Copolymer A in the joint agent is polymethyl methacrylate with side group containing furan functional group, copolymer B is polystyrene with side group containing maleimide, side group furan in copolymer A and side group in copolymer B The mol ratio of base maleimide is 1:1, and the control mixer rotating speed is 100r / min, and mixing time 5min;

[0028] (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 300r / min, and the vacuum degree is -0.06MPa, The ...

Embodiment 2

[0030] An ABS composition for improving ultrasonic welding strength and a preparation method thereof, comprising the following steps:

[0031] (1) Add 90 parts of ABS resin (melt index is 15g / 10min), 10 parts of reversible reaction cross-linking agent, 10100.1 parts of antioxidant and 0.1 part of antioxidant 168 into a mixing mixer for pre-mixing, wherein, reversible reaction cross-linking agent Copolymer A in the joint agent is polymethyl methacrylate with side group containing furan functional group, copolymer B is polystyrene with side group containing maleimide, side group furan in copolymer A and side group in copolymer B The mol ratio of base maleimide is 1:1, and the control mixer rotating speed is 100r / min, and mixing time 5min;

[0032] (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 300r / min, and the vacuum degree is -0.06MPa, Th...

Embodiment 3

[0034] An ABS composition for improving ultrasonic welding strength and a preparation method thereof, comprising the following steps:

[0035] (1) Add 80 parts of ABS resin (melt index is 5g / 10min), 20 parts of reversible reaction cross-linking agent, 10760.5 parts of antioxidant and 0.5 part of antioxidant 618 into a mixing mixer for pre-mixing, wherein, reversible reaction cross-linking agent In the joint agent, copolymer A is methyl methacrylate-butadiene-styrene copolymer containing furan functional group in side group, and copolymer B is styrene-maleic anhydride copolymer containing maleimide in side group, The molar ratio of the side group furan in the copolymer A to the side group maleimide in the copolymer B is 6:1, the control mixer speed is 300r / min, and the mixing time is 20min;

[0036] (2) Melt, blend, extrude and granulate the mixture obtained in step (1) through a twin-screw extruder, controlling the extrusion temperature to be 210-250°C, the screw speed to be 6...

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Abstract

The invention discloses an ABS composition for improving the ultrasonic welding strength, and a preparation method thereof. The composition comprises, by weight, 80-99 parts of ABS resin, 1-20 parts of a reversible reaction cross-linking agent and 0.1-1 part of an antioxidant. 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. The preparation method of the ABS composition comprises the following steps: (1) adding the ABS resin, the reversible reaction cross-linking agent and the antioxidant into a mixing stirrer, and performing premixing; and (2) carrying out melt blending, extrusion and granulation on a mixture obtained in step (1) by using a double-screw extruder, and performing granulation to obtain the ABS composition for improving the ultrasonic welding strength. Compared with like products in the prior art, the ABS composition of the invention hasthe following advantages: after the reversible reaction cross-linking agent is added, the effect of remarkably improving the welding strength with a PMMA product can be achieved, and the purpose of improving the welding efficiency can be achieved.

Description

technical field [0001] The invention relates to the field of polymer modified materials, in particular to an ABS composition for improving ultrasonic welding strength 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): C08L55/02C08L33/14C08L25/18C08L51/04C08L35/06C08L23/08C08L25/12C08K5/134C08K5/526C08K5/524C08K5/20
CPCC08L55/02C08L2205/03C08L2205/035C08L2205/025C08L2201/08C08L33/14C08L25/18C08K5/1345C08K5/526C08L51/04C08L35/06C08K5/524C08L23/0869C08L25/12C08K5/20
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 SHANGHAI PRET COMPOSITES
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