Paint knowledge general composition of paint

Core tip: the composition of the general coating includes film-forming substances, pigments and fillers, solvents and additives Brief introduction is as follows: film forming substance is the basis of coating composition, which plays a decisive role in the properties of coating There are many kinds of coating film-forming materials, which can be divided into two categories: conversion type and non conversion type The film-forming products of conversion coating mainly include dry oil and semi dry oil, two-component amino resin, polyurethane resin, alkyd resin, thermosetting acrylic resin, phenolic resin, etc Non conversion coating film-forming materials mainly include nitrocellulose, chlorinated rubber, asphalt, modified rosin resin and thermoplastic acrylic resin Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of paint news: the composition of general paint includes film-forming substances, pigments and fillers, solvents, additives, a total of four components Brief introduction is as follows: film forming substance is the basis of coating composition, which plays a decisive role in the properties of coating There are many kinds of coating film-forming materials, which can be divided into two categories: conversion type and non conversion type The film-forming products of conversion coating mainly include dry oil and semi dry oil, two-component amino resin, polyurethane resin, alkyd resin, thermosetting acrylic resin, phenolic resin, etc Non conversion coating film-forming materials mainly include nitrocellulose, chlorinated rubber, asphalt, modified rosin resin, thermoplastic acrylic resin, vinyl acetate resin, etc B pigments and fillers: pigments can make the paint present rich colors, make the paint have certain covering power, and enhance the mechanical properties and durability of the film There are many kinds of pigments, so we should pay attention to carefully select according to different properties and uses Fillers can also be called physical pigments, which have no covering power and play an important role in coatings Fillers can reduce the cost of coating, increase the thickness of coating, and enhance the mechanical properties and durability of coating Commonly used filler varieties include talcum powder, calcium carbonate, barium sulfate, silica, etc C solvent: except for a few solventless coatings and powder coatings, solvent is an indispensable part of the coating Commonly used organic solvents mainly include aliphatic hydrocarbon, aromatic hydrocarbon, alcohol, ester, ketone, halogenated hydrocarbon, terpene, etc The proportion of solvent in coating is more than 50% The main function of the solvent is to dissolve and dilute the film-forming substances, so that the paint is easy to form a perfect film during the construction After the coating construction, the solvent is generally volatilized to the atmosphere and rarely remains in the paint film In this sense, the solvent in the coating is not only a great pollution to the environment, but also a great waste of resources Therefore, the modern coating industry is trying to reduce the use of solvents, and has developed high solid coating, water-based coating, latex coating, solvent-free coating and other environmentally friendly coatings Many of our coatings are environmentally friendly Assistant D: vividly speaking, the function of assistant in coating is the same as that of vitamin and microelement to human body The dosage is very small, the effect is very big, indispensable There are four main categories of modern coating additives: (1) additives that affect the coating production process, such as defoamer, wetting agent, dispersant emulsifier, etc (2) Auxiliaries, such as anti settling agent, stabilizer, anti skinning agent, etc., which have effect on the coating storage process (3) Auxiliaries that play a role in the coating construction process, such as leveling agent, defoamer, drier, anti sagging agent, etc (4) Auxiliaries, such as plasticizers, matting agents, flame retardants, mildew inhibitors, etc., which have effect on the performance of the film Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant 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