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    Home > Coatings News > Paints and Coatings Market > Coating classification: natural oil coating

    Coating classification: natural oil coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    It is suggested that the main film-forming materials of natural oil coatings are vegetable oil, vegetable oil plus natural resin or modified phenolic resin, including clear oil, varnish, paint and other different types From the composition of natural oil coating, the triglycerides contained in oil are the main components reflecting the properties of oil coating Clear oil is the processing product of dry oil, which is called varnish when it contains resin Generally speaking, the main component of vegetable oil is triglycerides The fatty acids forming triglycerides are divided into saturated and unsaturated fatty acids Saturated fatty acids such as stearic acid Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Home of coatings: natural oil coatings are based on vegetable oil, vegetable oil plus natural resin or modified phenolic resin as the main film-forming materials, including clear oil, varnish, paint and other different types From the composition of natural oil coating, the triglycerides contained in oil are the main components reflecting the properties of oil coating Clear oil is the processing product of dry oil, which is called varnish when it contains resin Generally speaking, the main component of vegetable oil is triglycerides The fatty acids forming triglycerides are divided into saturated and unsaturated fatty acids Saturated fatty acids, such as stearic acid, can not be polymerized because there are no double bonds in the molecule Unsaturated fatty acids, such as oleic acid and tung oil acid, can polymerize and crosslink under the action of oxygen in the air Vegetable oil containing unsaturated fatty acid, such as tung oil, catalpa oil, linseed oil and hemp oil, can be oxidized and polymerized to dry into film, so it is called dry oil Half dry oil, such as soybean oil, peanut oil and cottonseed oil, whose iodine value is in the range of 100-140 Gi2 / 100 g, has lower drying speed than dry oil The oil that can't be dried by itself is called non drying oil, which is generally used as plasticizer and synthetic resin, such as castor oil, coconut oil, rice bran oil, etc In addition, vegetable oil contains some non fat components such as phospholipids, sterols, pigments and other impurities, which are generally harmful to paint making, so they should be removed when making paint In addition to natural oil, rosin processing resin is usually added to the coating The main component of rosin resin is resin acid (c19h29cooh) Rosin soap, ester or rosin modified phenolic resin can be prepared by processing rosin Sometimes petroleum resin, gumalon resin, phenolic resin, butanol etherified phenolic resin and other resins are used as modified resins Driers are also an important component The driers are catalysts for oxidative polymerization of oils and fats The common organic acid soaps are cobalt and manganese The most common organic acid soaps are cobalt, calcium and zinc epoxides Grease resin coating is mostly solvent type, mainly used solvent oil, xylene and turpentine, etc According to different types of natural oil coatings, varnish is a kind of paint without coloring substance, which is composed of natural resin or some synthetic resin, solvent and additive The transparent film formed by varnish has the functions of protection and decoration Table 1 shows the composition, characteristics and application of natural oil varnish Table 1 composition, characteristics and application name of natural oil varnish main component characteristics application ester gum varnish dry oil, rosin, drier, No.200 solvent oil (or turpentine oil) water resistance, bright wood furniture, doors and windows, board walls and metal products surface finish, suitable for spraying, brushing phenolic varnish dry oil, pure phenolic resin, drier, turpentine oil Water resistant, bright enamel film on the cover light, making water sandpaper, suitable for roller coating Brush and spray asphalt drying varnish dry oil, natural asphalt, desiccant, No.200 solvent oil water resistant, gasoline resistant, lubricating oil resistant, hard, black and bright automobile and bicycle parts, suitable for spray and dip coating alkyd varnish dry oil modified pentaerythritol resin, desiccant, organic solvent oil weather resistant, flexible metal, wood covering, primer, putty Matching, suitable for spraying, brushing varnish with pigment is the color paint (enamel) Varnish is the basic component of enamel All kinds of enamel produced by varnish can be used without blending, which is called ready mixed paint Mixed paint with oil as a single film-forming substance is called oily mixed paint; mixed paint with oil as the main part and a small amount of rosin and phenolic resin as film-forming substance is called magnetic mixed paint See Table 2 for composition, characteristics and application of ready mixed paint Table 2 composition, characteristics and application name of ready mixed paint main component characteristics application of various colors of oily ready mixed paint dry oil, pigment, constitutional pigment, desiccant, No.200 solvent oil weather resistance, easy brush coating, slow drying, film soft metal, wood parts and building color semi gloss ready mixed paint dry oil, glycerin, rosin ester refining, pigment, constitutional pigment, desiccant, organic solvent For steel and wood surfaces with certain luster, good covering power, fast drying and low requirements for flexible and glossy coating, all kinds of phenolic mixed paint dry oil phenolic resin, pigment, drier, No.200 solvent oil are bright For tough metals and buildings, when the ratio of resin to dry oil is 1:2 or the amount of resin is more, they are listed in enamel Enamel is made up of paint or resin solution with or without dry oil, and then with coloring pigments, physical pigments, solvents, etc its performance mainly depends on the resin and its content The coating formed by enamel is hard, smooth and flat, and its appearance is similar to enamel The content of resin in enamel coating is more than that of ready mixed paint, and the coating is hard, wear-resistant, chemical resistant and high temperature resistant See Table 3 for composition, characteristics and application of enamel Table 3 composition, characteristics and application name of enamel main component characteristics application of all colors of ester gum enamel glycerine rosin, dry oil refining paint, pigment, drier, No.200 solvent oil is bright and bright, but the weather resistance is poor indoor metal and wood surfaces such as construction engineering, vehicles, mechanical equipment, etc., complete with primer, red lead or grey antirust paint, all colors of pure phenolic Enamel pure phenolic resin, dry oil, desiccant, No.200 solvent oil, xylene are hard, bright, generally water resistant, generally required to be resistant to moisture, dry and wet alternation of metal and wood, matching with antirust paint and phenolic primer, painting and spraying alkyd resin, pigment, desiccant, turpentine oil and xylene in alkyd enamel are glossy and weather resistant Metal and wood products, spraying or brushing with alkyd primer, two-layer paint, epoxy ester primer and phenolic primer, plant oil modified pentaerythritol alkyd resin, flake aluminum zinc paste, desiccant, mixed solvent, water vapor penetration resistance, UV reflection, weathering steel bridges, towers and outdoor buildings, spraying or brushing with corresponding antirust paint White alkyd baking enamel plant oil modified alkyd resin, titanium dioxide, drier, xylene with good adhesion, impact resistance, white color, no yellowing light industrial products, electromechanical, instrument, toy and other metal surface coating home is focused on coating, diatom mud, paint coating, coating process, fire retardant coating news and coating, diatom mud, paint coating, coating process, Decoration knowledge and effect drawing of fireproof coating,
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