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    Home > Coatings News > Paints and Coatings Market > Paint classification: paint printing adhesive

    Paint classification: paint printing adhesive

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: the adhesive of early paint printing is some natural high polymer plant glue or animal glue Although these substances have certain adhesion, they are generally not resistant to water washing, and the product feels hard The ideal paint binder requires the film to be colorless and transparent, and will not turn yellow after heating The properties of paint film are firm, good elasticity, strong adhesion, water and dry cleaning resistance, sun and aging resistance However, in fact, the daily use of paint binder can not meet the above requirements In general, according to the actual situation, sometimes several adhesives can be selected for mixed use, and can be selected again 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 Paint Home News: early paint printing adhesive is some natural polymer plant glue or animal glue, although these substances have a certain adhesion, but generally they are not resistant to washing, the product feel hard The ideal paint binder requires the film to be colorless and transparent, and will not turn yellow after heating The properties of paint film are firm, good elasticity, strong adhesion, water and dry cleaning resistance, sun and aging resistance However, in fact, the daily use of paint binder can not meet the above requirements In general, according to the actual situation, sometimes several adhesives can be selected for mixed use, and appropriate coating additives or additives can be selected to improve or adjust, so as to obtain better results The type of coating adhesive (1) according to the reaction performance, common adhesives can be divided into two types according to the reaction performance a Non reactive adhesives do not react with cross-linking agent or fiber during post-treatment of printing Non reactive adhesives can also be divided into the following categories: polyacrylate copolymers: the common adhesives are copolymers of butyl acrylate and propylene cyanogen If butyl acrylate is used as a monomer alone to synthesize butyl acrylate as an adhesive, the film formation is soft, the adhesion is good, and the aging resistance is good, but the mechanical properties are good The strength is not high, and it is easy to swell; although the adhesive film feels hard when the propylene cyanogen component is introduced into the molecular chain, the tensile strength, wear resistance and dry cleaning fastness of the film can be improved, and the copolymers after their copolymerization have the advantages of two components at the same time Butadiene copolymer: this kind of adhesives are mainly copolymers of butadiene and styrene, copolymers of butadiene and propylene cyanogen, etc With the change of the composition of the copolymer, the properties of the copolymer also change The mechanical strength and elasticity of the copolymers will be improved, but the softness will be reduced when styrene is introduced into the butadiene chain Vinyl acetate copolymer: Although polyvinyl acetate itself is a kind of adhesive, it is not washable and hard, so it can not be used as pigment printing adhesive alone If it is copolymerized with other monomers or modified, it can be used as printing adhesive b Reactive adhesive reactive adhesive is through the introduction of appropriate reactive groups in the molecular chain of the adhesive, so that the adhesive can be crosslinked or covalently combined with the fiber directly, forming a network structure, so the solvent resistance, heat resistance and elasticity are greatly improved, and the friction fastness can also be improved The adhesives with reactive group monomers mainly include the following categories: the adhesives with amino groups in the molecules can react with appropriate cross-linking agents to form a network structure Adhesives containing hydroxyl monomers: amines in the molecular chain can react with appropriate crosslinkers to form a network structure Self crosslinkable and fiber reactive adhesives: these adhesives contain monomers such as methyl acrylate that can self crosslink The properties of reactive adhesives vary with the properties and copolymerization ratio of the monomers used (2) According to the dispersion state in water, there are three types of pigment printing adhesive, i.e water dispersion type, oil type, water type and water / oil type Water dispersive adhesive: for example, alamin adhesive, the film forming speed is fast and does not need high temperature baking Oil, water type adhesive: such as screen printing adhesive, Dongfeng brand adhesive, etc it is characterized by simple preparation, easy color matching and easy cleaning Water / oil type adhesive: this kind of adhesive has the advantages of clear printing outline, good permeability, good hand feel, etc., but the pattern has poor abrasion resistance and is easy to burn Organic solvent is used for cleaning, so it is rarely used in daily production Choosing different monomers to synthesize adhesives can get different functional products These products have significant effect on solving the problems of paint handle, washing, rubbing and other fastness In the practical application process, we should choose the appropriate adhesives according to the needs to ensure the production of high-quality products Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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