A kind of preparation method of side chain branched fluorine-containing monomer acrylic polymer

Abstract

The invention provides a preparation method of a side chain grafted fluorine-containing monomer acrylic polymer. The side chain grafted fluorine-containing monomer acrylic polymer comprises the following components in parts by weight: 5 to 40 parts of fluorine-containing monomer, 30 to 60 parts of acrylic ester monomer, 0.6 to 1.0 part of initiator, 0.5 to 1.0 part of functional additive, and 30 to 50 parts of solvent, wherein the functional additive is an independently prepared product. The fluorine-containing monomer acrylic polymer prepared by four steps is relatively low in surface energy, has a fresh water contact angle more than 100 degrees, can impact on the variation of bond angles of two hydrogen atoms in water molecules and shows high attaching performance to a galvanized substrate under the hydrogen bond effect generated by an active group in the side chain, and is prepared for not greater than 6 hours totally; and the whole preparation process has the characteristics of being simple and free of complex equipment, realizes continuous operation, and also realizes the function of preventing equipment which is easily iced outdoor from being covered with ice.

Description

technical field [0001] The invention belongs to the technical field of anti-icing coatings, in particular to a preparation method of side chain grafted fluorine-containing monomer acrylic acid polymer. Background technique [0002] As we all know, icing-prone facilities such as high-voltage power line towers, wind power blades and towers, ships, etc. are mostly located outdoors or in remote places and are mostly made of galvanized substrates. The preparation and mixing of two-component anti-icing coatings requires special tools. And considering factors such as the activation period, it is more difficult to promote its use. [0003] There are many types of resin base materials used in anti-icing coatings, such as silicone acrylic resin base material, silicone epoxy resin base material, fluorine-containing acrylic resin base material, etc. These types of resin base materials have low surface can. Among the above three types of low surface energy resin binders, fluorine-conta...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent 200710151764.0 reported that the Ocean Chemical Research Institute used perfluoroalkyl compounds to modify acrylic acid to prepare ultra-low surface energy fluorine-containing acrylic resin, and the fresh water contact angle of the fluorine-containing acrylic resin used for anti-icing coatings was greater than 120°. In the preparation process of fluorine-containing acrylic resin, more acrylate monomers are used to adjust the resin, and the preparation time is at least 10 hours. In addition, due to the high cost of perfluoroalkyl compounds, although the prepared fluorine-containing acrylic resin is less The surface energy is low and the freshwater contact angle is large, but its preparation cost is high, which restricts the large-scale promotion and use of fluorine-containing acrylic resin in the market

Images