White whitening master batch and preparation method thereof

Abstract

The invention provides white whitening master batch. The whitening master batch is prepared from, by mass, 38.5% of polyethylene, 15% of calcium carbonate, 5% of a fluorescent whitening aid, 40% of titanium dioxide, 1% of a slipping agent and 0.5% of ultramarine blue powder. The invention further provides a preparation method of the white whitening master batch. It can be guaranteed that the yellowing problem cannot occur on a white plastic product generated at a client side; meanwhile, the master batch is kept to have a good dispersive mixing degree, and the whitening effect of the surface of the product is better.

Description

technical field [0001] The invention relates to a white whitening masterbatch and a preparation method thereof. Background technique [0002] During the preparation of plastic products, they have to go through a high-temperature melting molding process. During this process, the plastic raw materials themselves and the small molecular substances of the raw materials are prone to degradation reactions at high temperatures, causing discoloration and yellowing of the products, thereby affecting the quality of plastic products. Especially for white plastic products, this effect is more serious. In order to eliminate this effect, in recent years, with the emergence of organic fluorescent whitening agents, the production of white plastic products such as fibers, pipes, and decorative materials has achieved whitening and brightening visual effects. Contents of the invention [0003] The purpose of the present invention is to provide a white whitening masterbatch and its preparati...

AI Technical Summary

Problems solved by technology

[0002] During the preparation of plastic products, they have to go through a high-temperature melting molding process. In this process, the plastic raw materials themselves and the small molecular substances of the raw materials are prone to degradation reactions at high temperatures, causing the products to change color and yellow, thus affecting the quality of plastic products.