Paint knowledge | powder coating formula and production how to distinguish the quality of powder coating

Core tip: paint can't be left for home decoration Powder paint is a new type of solvent-free 100% solid powder paint It has the characteristics of solvent-free, pollution-free, recyclable, environmental protection, energy and resource saving, labor intensity reduction and mechanical strength of coating film It's very popular with consumers Because of this, some unscrupulous businesses make good use of the inferior Then you know powder paint What are the ingredients? How to distinguish the quality of the powder coating? Today, I want to introduce the powder coating formula, production and how to distinguish the quality of the powder coating, which is to let you have a deeper understanding of the coating Powder coating formula - resin Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: paint can not be left for home decoration Powder paint is a new type of solvent-free 100% solid powder paint, which is solvent-free, pollution-free, recyclable, environmentally friendly, energy and resources saving, labor intensity reduction and coating machinery The high strength features are very popular with consumers Because of this, some unscrupulous businesses try to make good use of the inferior Do you know what the powder coating formula is? How to distinguish the quality of the powder coating? And the powder coating formula and production and how to distinguish the quality of the powder coating that I'm going to introduce to you today can give you a deeper understanding of the coating The formula of powder coatings resin and emulsion are the metabolites of plants Mixed glycerin is incorporated into the cells of plants, and resin is extracted from pipes or pipes The commonly used acid and acetate resins and modified resins are obtained by this method Resin raw materials are also the most important basic materials for powder coating formulations Most resins are characterized by hard texture, luster, and part of them are solid They are mixed with water and will not be dissolved by water Used in the production of powder coating, it will be softened at high temperature, accompanied by fragrance or odor, and the resin also has synthetic resin and natural resin Powder coating formulation diluent Diluent, also known as filler by some people, will be added to some powder coating products for the convenience of spray painting construction, including kaolin, talcum powder, clay, clay and other components, to reduce the viscosity of powder coating and facilitate further construction Most diluents on the market are organic solvents cheaper than resin But it is also used as raw material in some powder coatings Diluents are not added to all powder coating formulations The biggest characteristic of diluent is that its solubility is not limited, and it can be dissolved with other solvents Powder coating formula - additives for such powder coating formula as additives, presumably we have heard the most about food additives In addition, there are additives in powder coating products Additives are added to the coating formulation to further consolidate the stability of the powder coating, so that the use of the powder coating in the construction process can cover the surface of the object, play a protective role, and make the decoration effect more perfect There are many kinds of powder coating, and each kind of powder coating products will be applied in different places, so not every one There will be additives in the powder coating formulation Powder paint formula - auxiliary material powder paint is the name of modern civilization At the beginning, it was called paint With the continuous development of modern science and technology industry, the name of paint has been preserved For example, some latex paint, top coat, primer, etc the ingredients contained in the powder paint formula, in addition to the above basic raw materials, include pigments in the auxiliary powder paint formula , antirust pigments, physical pigments, solvents, additives, etc., can be organic or inorganic, but at present, most of the powder coating formulations are organic polymer materials, and this material has become the most important part of the powder coating market The powder coating formula and production are the basic ingredients of the powder coating formula After knowing the powder coating formula, the next production of powder coating will be very simple Synthetic resin or natural resin is used as the main raw material in the production of powder coating After adding some auxiliary materials such as pigments, auxiliaries and solvents, and through grinding, dispersion and other manufacturing processes, a kind of powder coating product with strong coverage is completed As far as the powder coating market is concerned, the basic synthetic resin has replaced the vegetable oil used to make paint, so it is now generally called powder coating Powder coating quality identification skills: 1 Appearance identification method 1 Hand feeling: hand feeling is silky smooth, loose and floating Hand feeling is rough, heavy and heavy Grasp a handful of powder in hand, the smoother the powder is, the better the quality is On the contrary, the rough hand feeling of the powder is heavy, the quality is poor It is not easy to spray, the second powder falling is more, and the waste is large 2 Volume: the larger the volume, the less the filler in the powder coating, the higher the cost The better the powder quality The smaller the volume, the higher the filler in the powder coating, the lower the cost The worse the powder quality is For the same carton, look at the large powder volume of that family, that is the good powder The small size of that family, that is the bad powder It is not easy to spray, the more the secondary powder falling, the greater the waste, the less the spraying area, and the higher the use cost 3 Storage time: the good powder can be stored for a long time, and the powder leveling and other effects remain the same The poor powder can not be stored for a long time, and the leveling and other effects become worse after 3 months The shelf life of normal powder is 12 months under normal temperature, and the quality of low-end raw materials is unstable and easy to deteriorate The poor raw materials are used to produce powder, Spraying surface will accelerate pulverization and aging after half a year, which will affect the reputation of customers In addition, the powder is not easy to store, resulting in a large waste of powder to customers and a lot of fees Powder coating quality identification skills: 2 The resin content of normal powder should be about 55-65%, the resin content is about 20 yuan / kg, and the filler material is about 2 yuan Some poor powder factories use the resin content below 45% to replenish the inferior, increase the filler material to reduce the cost and spray area Comparison method: two same powder spray products, If there are more powder spraying products in that one, there will be less spraying products in that one If there are less spraying products in that one, the use cost will be high If there is less spraying area, the use cost will be high If there is 6 square meters of powder spraying per kilogram, one square meter less spraying is equivalent to 3-6 yuan more per kilogram of powder paid by the manufacturer It is recommended that the manufacturer use genuine powder, Carefully check the actual use cost Powder coating quality identification skills: 3 The powder with good working efficiency is easy to spray, and the base material can be covered by spraying 1-3 guns, with less secondary recovery powder and high working efficiency The base material can be covered only by spraying 3-5 guns, with more secondary recovery powder and low working efficiency The operators can determine the powder loading rate by spraying, and the powder dropped is not much The products produced in the same time are few, The secondary recovery powder is more, increasing the burden of operators and low efficiency Powder coating quality identification skills: 4 The powder with good baking identification method does not produce a lot of smoke in the baking process The poor powder has a lot of smoke in the baking process The good powder raw materials do not produce a lot of smoke, and some manufacturers fill the raw materials with good materials The amount of powder will increase, the square number will not be sprayed, and the use cost will be increased, The same amount of powder produces fewer products Powder coating quality identification skills: 5 After baking, the finished product appearance and luster identification method good powder product appearance is delicate, full, transparent and strong three-dimensional sense Poor powder product appearance is dim, rigid, foggy, opaque and poor three-dimensional sense The comparison of the two boards shows that the appearance is poor, which affects customer reputation and product appearance Good powder luster is good, It can maintain the relative luster for a long time The effect of poor powder glossiness is good when it is baked out, and it will start to shoot in a few months The powder made of the material with poor glossiness appearance detection can not maintain the long-term glossiness stability, such as shot light, pulverization, paint peeling, etc Powder coating quality identification skills: 6 Adhesion and aging identification method good powder adhesion is strong, toughness is strong, and can keep for several years without pulverization, aging Poor powder adhesion is poor, very brittle, after spraying 3 months to half a year, aging, pulverization Comparative test of adhesion and bending, and observation of a few months later whether the product has aging, pulverization, adhesion and aging is poor, the product is easy to aging, pulverization, Rust can shorten the service life of products and affect the reputation of customers Powder coating quality identification skills: 7 High temperature identification method adjust the temperature to 220-230 degrees, heat preservation for 10-15 minutes, good powder, good temperature and weather resistance, after high temperature baking, the color change is small, and the luster change is not big Poor powder, poor temperature and weather resistance, serious discoloration and dullness after high temperature baking, this method is particularly effective for detecting outdoor light color powder Powder coating quality identification skills: 8 Environmental protection identification method: good powder materials are produced in large factories, environmental protection is guaranteed Poor materials and recycled powder can not be guaranteed for a long time Environmental protection SGS detection helps to identify the environmental protection quality of powder coating Editor's summary: the above is powder coating formula and production How to distinguish the quality of powder coating? I hope to help the friends who have this demand! Paint house focuses on the news and information of coating, diatom mud, paint coating, coating process, fire retardant coating and coating, diatom mud, paint coating, coating process, decoration knowledge and decoration effect map of fire retardant coating,