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Coupling effect and common industrial application of titanate coupling agent
Release Date:
2021-11-22
Titanate coupling agent is a coupling agent developed by Kenledge Petrochemical Company in the late 1970 s. For thermoplastic polymers and dry fillers, there is a good coupling effect.
通式：ROO(4-n)Ti(OX-R’Y)n(n=2，3)
RO-is a hydrolyzable short-chain alkoxy group, which can react with hydroxyl groups on the surface of inorganic substances, thus achieving the purpose of chemical coupling. OX-can be carboxyl group, alkoxy group, sulfonic acid group, phosphorus group, etc. These groups are very important and determine the special functions of titanate, such as sulfonic acid group giving certain thixotropy to organic compounds. Pyrophosphoryloxy group has flame retardant, rust prevention and enhanced bonding properties; phosphoramyl group can provide oxygen resistance, flame resistance, etc., so through the selection of OX-, titanate can have both coupling and other special properties. R'-is a long carbon bond alkane group, which is relatively soft and can be bent and entangled with organic polymers, thus improving the compatibility of organic and inorganic substances and improving the impact strength of the material. Y is hydroxyl, amino, epoxy or double bond-containing group, etc, these groups are attached at the end of the titanate molecule and can be combined by chemical reaction with organic matter.
And it will generally be used in some of our common industries, such:
In the plastic industry, the filler can be activated, thereby increasing the filling amount, reducing the amount of resin, reducing the cost of the product, and improving the processing performance, increasing the gloss of the product, and improving the quality.
In the rubber industry, the modification of the filler can play a reinforcing role, reduce the amount of rubber and antioxidant, improve the wear resistance and aging resistance of the product, and its gloss has also been significantly improved.
In the coating industry, the amount of pigment filler can be increased, the dispersion performance can be improved, the anti-settling effect can be prevented, the film strength can be improved, the color is bright, and it also has the characteristics of promoting drying. The baking temperature can also be reduced and the baking time can be shortened.
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