Extrusion grade ASA resin with easy processing and high apparent property and preparation method thereof

Abstract

The invention relates to an extrusion grade ASA resin with easy processing and high apparent property and a preparation method thereof. The extrusion grade ASA resin comprises the following components in part by weight: 50 to 70 parts of SAN resin, 30 to 50 parts of ASA rubber powder, 0 to 10 parts of inorganic filler, 0.1 to 3 parts of low molecular wax, 0.01 to 1 part of boron nitride, 0.5 to 3 parts of plasticizer, 0.2 to 0.6 part of light stabilizer, 0.2 to 1 part of antioxidant and 1 to 3 parts of lubricant. The preparation method comprises the following steps of: stirring and fully mixing the raw materials in a high-speed mixer, delivering the materials into a double-screw extruder through a metering device, melting and compounding the materials under the delivery, shearing and mixing of the screws, and extruding, bracing, cooling and granulating the materials to obtain the extrusion grade ASA resin with easy processing and high apparent property. Compared with the prior art, the preparation method reduces the production energy consumption, improves the bending phenomenon of profiles and plates, and improves the apparent property of ASA.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an extrusion-grade ASA resin with easy processing and high apparent performance and a preparation method thereof. Background technique [0002] Acrylonitrile-acrylate-styrene (ASA) plastics are preferentially used in automobile manufacturing, sports and entertainment venues, bathroom and sanitary products, and electrical and electronic fields due to their very good weather resistance and aging resistance. With the rapid development of the market economy and the real estate industry, plastic extruded profiles, sheets, pipes, and plates have gained unprecedented opportunities for development, especially the use of plastic PVC products is the largest. [0003] However, PVC products have poor weather resistance and can only be made into white products. With the improvement of people's colorful and personalized needs, a variety of ASA and PVC co-extrusion products have appe...

AI Technical Summary

Problems solved by technology

However, there are relatively few studies on improving melt fracture in the extruded ASA system. Patent CN200580040844.8 improves the phenomenon of ASA melt fracture by adding PMMA, tetrafluoroethylene, and polyethylene wax, while patent CN00805380.4 uses Zinc salts of organic acids can improve the melt fracture phenomenon of polyesters, but the processing is difficult and the appearance performance is not good