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Shaoxing food-grade plastic factory in Germany

by:Sinograce Chemical     2020-12-19
Shaoxing Germany food-grade plastic factory in shaoxing Germany food-grade plastic factory has good flexibility, folding, no cracks 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. 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. Glue dispensing quantity according to the work experience, the size of the adhesive dot diameter should be the half of bonding pad spacing, the size of the adhesive dot diameter should be adhesive dot diameter after patch 1. Five times, so that can ensure that there is enough glue to bonding elements and avoid excessive glue bonding pad and glue machine dispensing quantity depends on the length of the rotation of the screw pump to decide, practice should be according to the production situation, Room temperature, glue viscosity, etc. ) Selection of pump rotation time, manufacturing defects which were liable to occur during the following process: glue dot size is unqualified, wire drawing, glue impregnation welding plate, curing strength is bad off so easily, solving the problem of the glue machine should be various technique parameters, overall research to find a solution to the problem. 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] ( 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. If the adhesive is for ordinary families, the quality is not important. Product selection in shaoxing German food grade glue factory these components by oxidation reduction reaction generated has triggered activity of free radicals. 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. Shaoxing Germany food-grade plastic factory 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. 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. Shaoxing food-grade plastic factory oxidation - Germany - Reduction system is made up of two or more components. If it is used in the industrial field, 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. 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) 。 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. Shaoxing Germany food-grade plastic factory (3) found that plastic agglomerate, gel brush, 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. (4) from the cleaning fluid plastic brush, must use clean cloth to wipe dry rear can be used to besmear to brush glue; Hard monomers such as methyl methacrylate, these homopolymer Tg is higher, can enhance the cohesion strength of pressure sensitive adhesive, with the increase of the hard monomers, the viscosity increase of the pressure sensitive adhesive peel strength increases, the early viscous force will be reduced. Shaoxing German food grade glue factory to use points: can be divided into filter hot melt adhesive, automated packaging hot melt adhesive, car interior with hot melt adhesive, hot melt adhesive label, adhesive tape, hot melt glue, hot melt adhesive, etc.
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