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How much Beijing authorized hot melt adhesive

by:Sinograce Chemical     2020-11-15
How much is the authorization of the Beijing hot melt adhesive authorization of the Beijing how much hot melt adhesive in accordance with the provisions of GB/T 2792. Join the right amount of antioxidants to prevent premature aging of EVA hot melt adhesive. Because colloid when molten high temperature oxidation decomposition, adding antioxidants can guarantee under the condition of high temperature, bonding performance does not change. Water soluble with its functional and environmental protection, and the price is low, will be the future direction of coating. In addition to the above several kinds of raw materials can also be according to the difference of temperature, regions with some suitable for cold with the temperature of the thermal dose of cold resistance agent or suitable for tropical temperatures. ( 2] A bisulfite persulfate initiator system, for example, you can through the following reaction generates free radicals: 1. 180 ° peel strength test of the jinan lincom mechanical and electrical technology co. , LTD. (XLW series intelligent electronic relay testing machine According to the GB - 17200 - 97 manufacturing) 。 Usually volatile substances smell, the smell of heavy metals and other inorganic small. Authorization of the Beijing product to choose how much hot melt adhesive 3, checking and adjusting pur don't remove the moisture reactive polyurethane hot melt adhesive any parts of the machine, unless you have enough knowledge of equipment performance. (3) found plastic brush with agglomerate, gel, use boiling water to remove immediately now there are a lot of coating is done with water soluble glue, such as general water soluble PA, water soluble PU and leather adhesive, oil wax feeling, the feeling of color paste and other functional material. A, the color of the glue is supposed to have the difference. If being itself to the color no special requirements, then it is recommended to use yellow hot melt adhesive, generally speaking, yellow hot melt adhesive is better than white sticky. How much is the authorization of the Beijing hot melt adhesive these components by oxidation reduction reacts with active free radicals. Smell is the inherent nature of the material, is one of the important features, material can be measured. Second, by then surface treatment. Hot melt adhesive surface treatment to be then there is no other adhesive is so strict, but was then content on the surface of the dust, oil pollution also should do the appropriate processing, hot melt adhesive can give full play to the functions of glue. Authorization of the Beijing how much hot melt adhesive [ 6] Product features look pale yellow viscous emulsion used to maintain good health can be divided into solvent pressure sensitive adhesive, pressure-sensitive adhesive water solution type pressure sensitive adhesive and emulsion pressure sensitive adhesive, hot melt pressure sensitive adhesive and rolling pressure sensitive adhesive, etc. Five types. Hot melt adhesive is a kind of plasticity strong adhesive, and the adhesive can be adhesive, and a variety of substances can changes with temperature changes in the nature, after curing adhesion, adhesive strength is big, so many industries can use this kind of adhesive. Products with good flexibility, folding, no crack viscosity 3000 ~ 5000 mpa. S health and safety of 20 kg, 50 kg bottled please don't mix with other products, not finished product should be kept sealed. Three, homework time. Homework is an important characteristic of hot melt adhesive quickly. Hot melt adhesive homework time generally in 15 seconds, with modern production mode - - Assembly line is widely used, shorter operation time requirements for hot melt adhesive, such as books binding and speaker manufacturing of hot melt adhesive work time requirements for 5 seconds. How much is the authorization of the Beijing hot melt adhesive the adhesive if it is for ordinary families, the quality is not important. How much is the authorization of the Beijing hot melt adhesive if it is used in industry, requires attention to quality, so how to determine the quality of the hot-melt adhesive? Material as the temperature rises, the volatile gas concentration grows, are smell the smell of the heavier, vice scent is light.
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