Preparation process of modified paraffin for hardwood table and chair coating materials

Abstract

The invention relates to a preparation process of modified paraffin for hardwood table and chair coating materials. The preparation process comprises: cutting 50 g of refined paraffin into small blocks, adding to a four-necked flask, carrying out water bath heating, melting, stirring, and carrying out thermal insulation at a temperature of 75-85 DEG C; taking 8-12 g of a methyl acrylate monomer, and adding to the four-necked flask in a dropwise manner while introducing high-purity N2 for protection, wherein 0.5-0.7 g of an initiator is dissolved in the methyl acrylate monomer; carrying out a thermal insulation reaction for a certain time, and pouring out the reactant inside the flask while hot to obtain a grafted copolymer crude product; carrying out precipitation separation on the product by using acetone, washing a plurality of times, and drying to achieve a constant mass so as to obtain the grafted paraffin fine product. According to the present invention, the endothermic peak temperature of the prepared grafted paraffin product is substantially improved so as to substantially improve heat resistance; and the early-stage heat resistance and the late-stage heat resistance of the grafted paraffin product are significantly improved, such that the disadvantage that the easy migration of the existing coating material causes pollution on clothes and the like can be improved by adopting the grafted paraffin product as the main raw material of the redwood furniture paraffin-based coating material.

Description

technical field [0001] The invention relates to the field of furniture coatings, in particular to a preparation process for modified paraffin wax used in coatings for hardwood tables and chairs. Background technique [0002] Hardwood tables and chairs belong to mahogany furniture, also known as hardwood furniture. They are made of high-quality hardwoods such as red sandalwood, rosewood, and rosewood, and are made according to traditional Chinese craftsmanship. According to the characteristics of the craftsmanship and the place of origin, it can be roughly divided into three categories: Jingzuo (Beijing style), Guangzuo (Cantonese style) and Suzuo (Sushi style). The coatings used for mahogany furniture are mainly raw lacquer in the south; paraffin-based coatings in the north (represented by Beijing). Paraffin-based paint is a kind of paint formed by adding paraffin wax, beeswax and other components, melting at a certain temperature and then coating on the surface of furnitur...

AI Technical Summary

Problems solved by technology

At present, there are two mitigation methods: one is to paint multiple times (for example, once a year), which is laborious and laborious, and it is impossible to avoid the contamination of the paint on clothing; the other is to coat a layer of polyurethane on the surface of the paraffin-based paint, etc. Synthetic paint, but attenuates the inherent decorative effect of paraffin-based paints