Water -emulsifiable nitrolacquer and preparation method thereof

Abstract

The invention provides a water-emulsifiable nitrolacquer and a preparation method thereof. The water emulsion nitrolacquer comprises the following components in percentage by weight: 70%-90% of water-base nitro resin, 0.2%-0.5% of defoaming agent, 0.1%-0.5% of preservative, 2.5%-1% of substrate wetting agent, 3%-5% of sanding wax, 0.2%-0.6% of thickening agent, 1%-2% of antifreeze, 0%-0.2% of pH adjusting agent, 1%-3.5% of film forming auxiliary agent and 4%-20% of water. The water emulsion nitrolacquer has the advantages of good penetration property, quick drying, good sanding property, no adhesion to sand paper, little odor and no toxicity, and can be used as American water-base full-open spray after being produced. The product conforms to national standards and law regulations when exported to American and European Union, and has little odor; and the nitrolacquer film has the advantages of good sanding and adhesion property, quick drying and the like, thereby being suitable for flowline production.

Description

technical field [0001] The invention relates to a nitro lacquer, in particular to a water-based nitro varnish and a preparation method thereof. Background technique [0002] Nitro lacquer is a kind of volatile self-drying paint, which forms a continuous coating film by solvent volatilization, and does not undergo chemical changes during the film-forming process. It uses nitrocellulose as the main film-forming substance, and is mixed with synthetic resin, plasticizer, solvent, etc. to make the base material. Among them, the transparent base material without pigment is nitro varnish. [0003] Nitro paint has the characteristics of fast drying, convenient coloring, quick construction and good paint film performance, so it is widely used in the furniture industry. Traditional solvent-based lacquers use organic solvents such as toluene, xylene, and butyl ester as dispersion media. These organic solvents not only pollute the environment, but also damage human health. The water-...

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Problems solved by technology

[0004] There are also some research reports on water-based nitrocellulose paint in China, such as Zeng Zhaoxia of South China University of Technology and others have done research on the preparation of modified nitrocellulose emulsion by the phase inversion emulsification method of alkyd resin and the interpenetrating polymer network polymerization method of acrylate monomers , but in the actual application process of paint matching, this kind of nitro paint is prone to sticking when it is used as a primer, which is not conducive to assembly line painting and packaging and shipment

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