Highly metallic resin composition and preparation method thereof

Abstract

The invention relates to a highly metallic resin composition and a preparation method thereof. The highly metallic resin composition comprises the following components in part by weight: 90 to 99 parts of matrix resin, 1 to 10 parts of phosphorous compound, 0.1 to 4.0 parts of metallic pigment, 0.1 to 1.0 part of lubricant and 0.1 to 1.0 part of antioxidant. The preparation method of the highly metallic resin composition comprises the following steps of: after premixing the raw materials in a low speed mixer, feeding the mixture into a double-screw extruder; under the action of conveying, shearing and mixing of screws, melting and compounding the materials; and then carrying out extrusion, bracing, cooling and sized dicing to obtain the highly metallic resin composition. Compared with the prior art, the resin composition disclosed by the invention has the advantages that the metallic texture is promoted and is closer to a paint spraying effect; the implementing cost is low; the highly metallic resin composition is simple to operate and can be directly formed by methods of injection molding, extrusion, blow molding and the like; and an innovative appearance solution is provided.

Description

technical field [0001] The invention relates to a resin with metallic appearance, in particular to a resin composition with high metallic texture and a preparation method thereof. Background technique [0002] In recent years, consumer goods have created a strong demand for plastics with unique colors and appearances. For example, products with shimmering effects and metallic textures are becoming more and more popular among consumers. Compared with the traditional single-tone color, this unique appearance can bring great visual impact to people, so that consumers can enjoy For its aesthetic design, we call this material aesthetic resin. [0003] The traditional technical solution of aesthetic resin is to post-process the molded products. The most commonly used method is the spraying process. Pearlescent paint, metallic paint, etc. can be selected according to product needs. However, the spraying process has many limitations, such as complex procedures and high requirement...

AI Technical Summary

Problems solved by technology

However, compared with spray-painted products, this type of resin also has significant disadvantages, that is, the metal texture is far from spray-painted, and it has an obvious plastic feel. This is due to the anisotropy of the aluminum powder on the surface of the molded product and the resulting The aluminum powder is destroyed, resulting in the loss of optical effect and the decline of metal texture, which often leads to the molding product not having a high-end appearance and being used in low-end products

[0005] In order to improve the metallic texture, the technical solution known to those skilled in the art is to add a higher content of metallic pigments to improve the metallic texture by obtaining more optical reflection surfaces, but a higher content of metallic pigments means expensive costs and will lead to The mechanical properties deteriorate. On the other hand, the E-Mold molding technology that has emerged in recent years can also improve the metal texture compared with general heating methods. However, E-Mold also has problems such as large investment and complicated equipment maintenance.

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