Scratch resistant and weather-resistant blending material with high brightness and metal texture

Abstract

The invention provides a scratch resistant and weather-resistant blending material with a high brightness and a metal texture. The blending material is characterized by being prepared from the following components in parts by weight: 40-60 parts of ASA resin, 40-60 parts of PMMA resin, 20-40 parts of SAN resin, 0.2-1 part of a metal pigment, 0.2-1 part of a processing aid, 2-5 parts of a compatilizer, 0.1-1 part of an antioxidant and 0.2-1 part of a weather resistant agent. The scratch resistant and weather-resistant blending material with the high brightness and the metal texture provided bythe invention is high in surface brightness, high in weather resistance in material, scratch-resistant in surface and obvious in metal effect.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a scratch-resistant and weather-resistant blend material with a high-brightness metallic texture. Background technique [0002] The structures of ASA and ABS are similar, but the ASA material structure does not contain unsaturated double bonds, which retains the excellent mechanical and physical properties of ABS as a general-purpose plastic, and has strong weather resistance and temperature resistance. Used in outdoor electrical and electronic products, automotive exterior mirrors, grilles and building materials. PMMA is a polymer with excellent optical properties and weather resistance. Most of its applications are concentrated in external decorations that require visual beauty, except for our common rear lights, lampshades, roofs, advertising signs, and panels. Due to PMMA has a strong surface hardness, and is also used in the shell materials of home appliances, suc...

AI Technical Summary

Problems solved by technology

However, there are the following deficiencies in varying degrees, which affect its use in various fields:

[0009] 1. The base resin used has poor weather resistance and is easy to change color, which affects the scope of use of the material. Outdoor use will seriously affect the mechanical properties of the prepared product, and the surface will turn yellow after long-term use, such as polypropylene, ABS, etc.

[0010] 2. The performance of the base material used does not meet the requirements. Spray-free materials can be used for the appearance and even structural parts of some products. The performance of the material is required to meet the product strength requirements. The pure PMMA material has low toughness and the surface of ASA material is scratch-resistant Injury does not meet the requirements for outdoor materials

[0011] 3. The metal powders used are all aluminum metal powders, pearl powders, and glitter powders on the surface of mica or glass substrates. These metal powders are prone to oxidation and discoloration at high temperatures, resulting in screw extrusion molding and injection molding. The product is easy to change color, the surface is dark, and the surface brightness is not enough to meet the required metal effect

[0012] 4. The metal powder is in the shape of flakes, silver dollars, or spherical and has poor hiding power. The addition of large amounts will affect the mechanical properties of the product

[0013] 5. The metal powder and pearl powder used in the above patents are directly added to the material resin, the surface has not been protected, the thermal stability of the surface is low, and the metal powder of the inorganic carrier has poor compatibility with the surface of the tree finger, which is easy to produce Appearance defects such as flow marks, weld marks, and waves

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