High-luster scratching-resistant ABS (Acrylonitrile-Butadiene-Styrene) resin and preparation method thereof

Abstract

The invention belongs to the technical field of polymer materials, and discloses ABS (Acrylonitrile-Butadiene-Styrene) resin and a preparation method thereof. The ABS resin comprises the following components in parts by weight: 80-40 parts of ABS resin, 20-60 parts of polymethacrylate, 1-6 parts of compatilizer, 1-5 parts of scratching-resistant agent, 0.1-1 part of main antioxidant, 0.1-1 part of auxiliary antioxidant, and 0.1-1 part of lubricant. The preparation method of the ABS resin comprises the following steps of: firstly adding the ABS resin, polymethacrylate, compatilizer, scratching-resistant agent, main antioxidant, auxiliary antioxidant, and lubricant to a high-speed stirrer for uniformly mixing, after mixing is finished, conveying the materials to a double-screw extruder by a precision metering conveying device, sufficiently fusing the materials under the shearing, milling and conveying of the screws, finally extruding, drawing and cooling to obtain granules. The high-luster scratching-resistant ABS resin not only retains the original excellent performances of the ABS resin, but also has the outstanding advantages of high luster, environmental friendliness, scratching resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a high-gloss scratch-resistant ABS resin and a preparation method thereof. Background technique [0002] ABS resin has good dimensional stability, creep resistance, impact resistance and excellent processability, so it is widely used in home appliances, automobiles, electronic appliances and other fields. With the development of society and the improvement of people's quality of life, there are more and more requirements for materials, and the products are becoming more and more specialized. Now, high gloss and scratch resistance are required for this kind of products. [0003] The surface gloss of ordinary ABS resin is about 80, and the surface pencil hardness is at B-HB level, which is difficult to meet the requirements of high gloss and scratch resistance. The surface gloss of polymethacrylate resin is about 100, and the surface pencil hardness is at 2H level. The...

AI Technical Summary

Problems solved by technology

However, the compatibility between ABS resin and polymethacrylate resin is not very good. When the two are mixed with each other, phase separation will occur, which directly affects the mechanical properties, gloss and surface scratch resistance of the product. , which also limits the application of such compositions

[0004] At present, the existing composition of ABS resin and polymethacrylate resin mainly increases the surface hardness of the composition by adding a compatibilizer and reducing the rubber content in the system to achieve the purpose of scratch resistance, but it is different from At the same time, it inevitably reduces the toughness of the composition, making the impact resistance of the product poor