With the rise of China 's real estate market, the demand for plastic building materials is constantly increasing . Modern Plastics Processing plastic masterbatch is an indispensable product . As plastic titanium dioxide has also been rapid development, demand for titanium dioxide in more than 25% compared to the rapid rise in the annual series . To develop high-end titanium dioxide , companies must continue to improve .

First, the masterbatch definition:

By a high proportion of titanium dioxide , an additive , a thermoplastic resin , after the processing of plastic colorants , wherein the selected resin has good wetting and colorant dispersion, and the coloring material has good compatibility.

Second, the method of coloring thermoplastics used

Pigment : The qualities of resin and a coloring agent ( eg titanium dioxide ) into the colored plastic mixture mixing granulator , and then added to the molding resin used in the manufacture of plastic products .

Colored powder : powdered colorants ( such as titanium dioxide ) qualities of resin used directly in the manufacture of plastic products evenly mixed .

Masterbatch coloring : today's most widely used plastic coloring . The colorant dispersed in a carrier ( such as titanium dioxide ) , after mixing with the qualities of resin used in the manufacture of plastic products simple .

Third, a significant advantage of colored masterbatch

Easy to use, pollution-free environment for molding ;

Color uniformity , stability, improve the quality of plastic parts ;

Easy to measure , can be applied to a high degree of automation molding production systems ;

Can be colored , anti-aging agents, antistatic agents set to one side , made ​​of multi-functional masterbatch , easy to use .

Fourth, the basic requirements for plastics masterbatch

( 1 ) excellent heat resistance (heat stability ) ;

( 2 ) Good light resistance ( light stability ) ;

( 3 ) good dispersion ( that is, to cover rate is high ) ;

( 4 ) To no mobility ( including solvent resistance ) ;

( 5 ) have good color strength .

Fifth, the masterbatch composition

Pigments + carrier + = masterbatch additive

Reference Recipe

Titanium dioxide : 40% ~ 70% ;

Lithopone : 0 ~ 30ff;;

Brightener : 0.02% ;

Dispersant: 3% to 4% ;

High pressure PE: 26%.