Polyvinylidene fluoride modified polyvinyl chloride coating

Abstract

The invention discloses polyvinylidene fluoride modified polyvinyl chloride paint, which is composed of two components A and B, wherein component A mainly consists of polyvinyl chloride resin, dioctyl phthalate, polyvinylidene fluoride It is developed from vinyl resin, dimethylformamide, modified high-chlorinated polyethylene resin, xylene formaldehyde resin, fluorocarbon modified polysiloxane and other materials; component B is isocyanate adduct; before use, according to weight Ratio of component A: component B = 100.0:9.0-12.0 is formulated into polyvinylidene fluoride modified polyvinyl chloride coating, referred to as FVC anti-corrosion coating. This coating has good matrix binding force, super high weather resistance, outstanding Chemical medium resistance and high temperature resistance, long-term service temperature between 120-150 ° C, widely used in chemical, petroleum, pharmaceutical, food and other industries as anti-corrosion protective coatings in engineering buildings, equipment components and production devices layer, its service life can reach more than 10 years, it is very popular among users and has high economic and social benefits.

Description

1. Technical field

[0001] The invention belongs to the field of polymer material science and industrial anti-corrosion engineering. It is a two-component solvent-based polyvinylidene fluoride modified polyvinyl chloride anti-corrosion coating, referred to as FVC anti-corrosion coating, which has temperature resistance, weather resistance and chemical resistance. Medium corrosion and other characteristics. 2. Technical Background

[0002] At present, the commonly used anti-corrosion coatings in the market include perchlorethylene coatings, high-chlorinated polyethylene coatings, PF-01 Yingdan polyvinyl chloride coatings, chlorinated rubber coatings, etc. They have their own advantages, some have better corrosion resistance, and some have better corrosion resistance. The flexibility is good, etc., but there are generally shortcomings such as thin and brittle paint film, low adhesion, many coats, short service life, and some poor corrosion resistance. Based on the existence of ...