Corrosion and aging resisting gel coat material capable of being recycled and preparing method thereof

Abstract

The invention discloses a gel coat material and a preparing method thereof. The material is prepared from 10-28% of styrene-butadiene-styrene segmented copolymer with a molecular weight of 5000-20000, 0.1-3% of polyvinyl chloride with a molecular weight of 1000-5000, 2-20% of ethyl cellulose, 40-60% of alkane with a carbon number of 12, 2-12% of castor oil, 1-5% of paraffin, 0.1-0.5% of benzotriazole, 0.5-2% of ZnO powder and 2-4% of titanium dioxide. The preparing process comprises the steps of mixing and heating the components to 140-180 DEG C while conducting stirring continuously, conducting stirring and heat insulation for a while at the temperature, and finally conducting cooling to obtain the gel material excellent in corrosion and aging resistance and capable of being repeatedly used through remelting. The gel material is easy to prepare, relatively low in cost, excellent in performance and capable of being applied to peelable coatings, anti-corrosion coatings, hot melt adhesive, binder and other fields.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coating. In particular, it relates to a recyclable corrosion-resistant and aging-resistant gel coating material and a preparation method thereof. Background technique [0002] Gel material, also known as cement. It refers to the substance that can change from slurry to solid stone-like body under physical and chemical action, and can cement other materials to form a composite solid with certain mechanical strength. It is divided into two categories: hydraulic gelling materials and non-hydraulic gelling materials. The latter category is further divided into inorganic and organic, and the gel material in the present invention belongs to organic gel. In the frequent maintenance parts of industrial and military equipment and equipment, parts connecting gaps, pipe connections, flange connections and other places are all places where crevice corrosion easily occurs. Now it is mainly protected...

AI Technical Summary

Problems solved by technology

Now it is mainly protected by ordinary coatings. On the one hand, due to the thin thickness of ordinary coatings, there are often defects in the gaps, so the protection effect is not good. On the other hand, these places are often dismantled and inspected regularly every year. Each time a new coat needs to be reapplied

Since the removal of ordinary coatings often requires organic solvents to be removed, or a large number of manual grinding work, the on-site working environment is harsh, the environment is polluted, and coating materials are wasted, which has great disadvantages.