Extinction master batch for plastics and preparation method thereof

Abstract

The invention relates to the technical field of plastic machining, in particular to an extinction master batch for plastics and a preparation method thereof. The extinction master batch for the plastics comprises a main body and a carrier; the main body comprises titanium dioxide and silicon dioxide materials; the main body forms a powdery cone through a crushing tank; the carrier is a polyester material; and the carrier and the main body are melted into a mixture and then the mixture is granulated into the extinction master batch. Since different shearing effects on the particles of titaniumdioxide and silicon dioxide exist in the shearing process, the overall quality of the extinction master batch formed by subsequent preparation is reduced, and the extinction effect on the plastics isreduced. Therefore, the cut main body of the extinction master batch is controlled within the required size range through the combined screening action of a coarse screen and a fine screen which are arranged, the cut unqualified part of the main body of the extinction master batch is screened out, the overall performance requirements of the prepared extinction master batch is further improved, andthe use effect of the extinction master batch for the plastics is stabilized accordingly.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to a matting masterbatch for plastics and a preparation method thereof. Background technique [0002] The matting masterbatch is a product that can increase the strength of the product in addition to the matting effect. It can be used in the plastic industry to matte the surface of various plastic products; A uniform roughened surface is formed on the surface, which causes a large amount of diffuse reflection of the natural light irradiated on the roughened surface, thus playing the role of eliminating the surface gloss of plastic products; for the introduction of matting masterbatch for plastics, please refer to: Yan Yan et al., Research on the preparation process of matte polyester masterbatch [J], Synthesis Technology and Application, 2017.12(No.4).14-17. [0003] In the preparation process of matting masterbatches for plastics, the main substance that plays the role ...

AI Technical Summary

Problems solved by technology

[0003] In the preparation process of matting masterbatches for plastics, the main substance that plays the role of matting needs to be sheared and formed, and then formed matting masterbatches and then thermally fused with plastics to achieve the purpose of matting plastics, but the main body of the current matting masterbatches Different degrees of shearing effects reduce the overall matting performance of matting masterbatches, and become the key to hindering the stable use of matting masterbatches

[0004] There are also some technical solutions about matting masterbatches for plastics and their preparation methods in the prior art. For example, a Chinese patent with application number 2019101357273 discloses a matting masterbatches for plastics and its preparation method, including 10-30 % carrier, 1-5% lubricant, 20-50% inorganic matting agent and 20-50% organic matting agent, inorganic matting agent is a mixture of matting agent with porous structure and matting agent with strip structure , the organic matting agent is fully vulcanized powder rubber and / or fully crosslinked powder resin; the surface of the matting agent with a porous structure in this technical solution is honeycomb-shaped and has a large specific surface area, which can cause microscopic unevenness on the surface of plastic products The matting agent with a strip structure is randomly distributed in the plastic and overlapped with each other, which can make the surface rougher, and the matting agent with a porous structure can be filled into the space formed by the overlapping with each other, further improving the microscopic unevenness. Flatness; the organic matting agent is heated and softened during the molding process of plastic products and can be stretched when stretched, and becomes curly after cooling, and plastic particles are embedded in the curly structure, resulting in a complex structure, so the matting effect is good; but in this technical solution Unsolved The main body of the matting masterbatch has different degrees of crushing during the crushing process, which affects the overall performance of the prepared matting masterbatch and reduces the stabilizing effect of matting

Images