Aspen wood pencil protective paint and preparation method thereof

Abstract

The invention relates to aspen wood pencil protective paint and a preparation method thereof and relates to the technical field of paint materials. The aspen wood pencil protective paint is prepared from an aqueous saturated polyester resin, an ammonia neutralizer, a white emulsion adhesive, beeswax, a defoamer, a thickener, shell powder, water-based white color paste and deionized water. The thickener comprises, by weight, hydroxymethyl fibers, bentonite, apatite, sepiolite powder and gypsum powder. The preparation method comprises 1) adding 24-25 parts of the aqueous saturated polyester resin into a container, carrying out stirring through a high-speed disperser along with gradual dropwise addition of the ammonia neutralizer, 2) grinding all the solid raw materials, adding all the solid raw materials into the container and carrying out full mixing emulsification, and 3) adding the water-based white color paste and white emulsion adhesive into the container, adding deionized water into the container, carrying out dispersion for 10-15min and testing pH of 7.5-8.5 to obtain the paint. The aspen wood pencil protective paint is safe and environmentally friendly, has no pollution, has high hardness, is not easy to scratch, is easy to produce and has a long service life.

Description

Technical field: [0001] The invention relates to the technical field of paints, in particular to a poplar pencil protective paint and a preparation method thereof. Background technique: [0002] Poplar is a plant of the genus Populus. There are more than 100 species in the genus. There are about 62 species in my country, of which 57 species are distributed in China, and about 4 species are introduced and cultivated. In addition, there are many varieties, variants and introduced strains. Poplar has a wide range of uses, not only for wood, but also mainly for processing industrial materials. Poplar has become an important additional raw material for plywood, fiberboard, paper-making matches, sanitary chopsticks and packaging. Pencil is a kind of pen used for writing and drawing and sketching. It has a history of more than 400 years. Among them, pencils for drawing and sketching are divided into many types, which are divided into three stages of development, namely Graphite, w...

AI Technical Summary

Problems solved by technology

For wooden pencils. Pencil shaft materials mainly include wood and glue. Wood is used to make pen shafts, which require upright texture, fine and uniform structure, soft or slightly soft, slightly brittle, less resin, low hygroscopicity, and swelling. Small shrinkage and no deformation. Mainly include pencil cedar (red cedar), cedar, sida, basswood, alder, etc. The adhesive should have appropriate viscosity, fluidity and wettability, and the adhesive layer has toughness after hardening , less damage to the tool, has certain water resistance, heat resistance, aging resistance, easy to cure at room temperature, short hardening time, non-toxic, etc. The wood of poplar is hard, and has high hygroscopicity and poor brittleness. It is not easy to make pencils in technology

At present, the commercially available paints are highly volatile and smelly, and the indicators do not meet the relevant laws and regulations of European and American countries, nor do they meet the current development prospects of our country.