Waterborne normal-temperature self-crosslinking acrylic acid modified alkyd antirust paint

Abstract

The invention relates to the technical field of waterborne antirust paint, in particular to modified alkyd resin antirust paint and a preparation method thereof. The waterborne normal-temperature self-crosslinking acrylic acid modified alkyd antirust paint has a formula as follows: 33 to 35 mass percent of core-shell acrylic acid modified alkyd emulsion, 18 to 21 mass percent of antirust pigment, 18 to 20 mass percent of filling material, 0.25 to 0.35 mass percent of defoaming agent, leveling agent and dispersing agent, 0.02 to 0.05 mass percent of pH adjusting agent, 0.2 to 0.5 mass percent of waterborne drier and 25 mass percent of deionized water; and the core-shell acrylic acid modified alkyd emulsion is put into a paint preparing jar, the pH value is adjusted by the pH adjusting agent, the core-shell acrylic acid modified alkyd emulsion is added with the antirust pigment, the filling material, the defoaming agent, the leveling agent, the dispersing agent and the deionized water, the mixture is stirred, dispersed, ground to the fineness less than or equal to 50 um and supplemented with the waterborne drier, the mixture is evenly stirred and subjected to pH adjustment to obtain a finished product of the waterborne normal-temperature self-crosslinking acrylic acid modified alkyd antirust paint.

Description

technical field [0001] The invention relates to the technical field of water-based antirust paint, in particular to a modified alkyd resin antirust paint and a preparation method thereof. Background technique [0002] The origin of water-based antirust paint can be traced back to the 1960s, when Rohm&Hass in the United States first introduced the acrylic emulsion antirust paint-Rhoplex MV-1 for steel surfaces. The research work of emulsion type acrylic metal anticorrosion paint in our country began in 1975. The former Institute of Paint Industry of the Ministry of Chemical Industry first developed the antirust emulsion primer BBL, which achieved good results in natural exposure and tests in Dalian, Qinhuangdao and other places. After more than 40 years of development, the water-based one-component antirust paint has roughly gone through the following stages according to the different water-based film-forming substances used: the first generation of water-based resin: the emu...

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Problems solved by technology

[0003] In order to overcome the above-mentioned defects, the technical problem to be solved in the present invention is to provide a water-based normal temperature self-crosslinking acrylic acid modified alkyd resin for the problem that the side chain ester of the existing water-based alkyd resin is easily hydrolyzed in an alkaline aqueous solution. rust paint