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Guilin PUR adhesive industry complaints

by:Sinograce Chemical     2021-01-30
Guilin industry complaints from PUR adhesive industry complaints from PUR glue color: brown non reactive hot melt adhesive can be repeatedly melt adhesive, especially suitable for some special technical requirements of component adhesive, as some of the cultural relics repair; 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. Are countries with a deficiency of timber in our country, in addition to a small amount of high-grade furniture use real wood, furniture mostly usually use fiber board, wood shavings or sawdust plate production, and furniture plate edge parts must use hot melt adhesive to glue sealing side materials, increase the aesthetic feeling, like solid wood furniture. The use of hot melt adhesive technical indicators are as follows: appearance: white is slightly yellow granular or stick. Tool used by the guilin PUR adhesive industry complaints before drying of glue can be used warm water to clean. 10, clean hot melt adhesive plastic cylinder, avoid the use of fireworks or sharp hard tool, in order to avoid scratch pur hot melt adhesive machine heating plate of teflon adhesive coating. Melting point: 70 84℃; Viscosity: 45000 75000 ( 180℃) 。 Solid surface usually cannot reach 1 nm level of level off, in the process of adhesive, almost all the base material shall be regarded as rough surface, and pressure sensitive adhesive wetting and spreading, peak valley bridge role, make two glued surfaces with adhesive and increase the contact area, and to produce 0 of molecular forces. Under 5 nm short range distance. Relative hardness: 70 80%; The curing speed: 8 - 12 seconds. Guilin industry complaints from PUR glue smell test: (3) cost: water-based glue consumption is 1/3 of solvent-based glue, if the water 3 times of unit price shall not exceed the solvent adhesive, replace solvent-based adhesive with water-based glue will not increase the cost, as crude oil prices rise, the cost of the solvent adhesive is bigger than water-based glue rise, in the long run, water-based glue process cost lower than that of solvent adhesive process. Thermoplastic powder coating product features PH 6. 0 ~ 7. 0 in use process should be tightly covered at any time, in case the glue liquid crust, do not entry, can not let children please don't contact with other products mix, not finished product should be kept sealed. There are mainly polyethylene ( CDPE) And polyvinyl chloride ( PVC) Of two kinds of powder coatings. Used in the cages with fish, the road guardrail, basked themselves, rack, refrigerator insulation, fan cover, etc. According to the need to make all sorts of color, coating on the surface of metal products protection and decoration effect. Guilin PUR adhesive industry complaints has not found a hot melt glue smell of national standard, but the smell of the binder to standard, this standard is suitable for solvent cement without appropriate hot melt adhesive, because customers have a higher request for the smell of hot melt adhesive. Adjust this component in order to achieve the product has a good performance. If it is used in the industrial field, requires attention to quality, so how to determine the quality of the hot-melt adhesive? The smell of hot melt adhesive measurement can be divided into instrumental determination method and olfactory determination method. Performance: LOPE coating PVC coating von adhesive stickers glue suitable for ordinary paper, wood, cloth and other porous materials of adhesive, such as general furniture manufacturing, paper products processing and the adhesive of cloth, etc. , mainly used for household decoration, furniture industry, printing industry, construction and other need white latex viscosity 28 ~ 38 s if the glue on the skin, can clean water and soap. ( 4] Has strong water resistance, solvent resistance, long-term alcohol abuse bubble not degum machine set clean water after use, improve the production environment, eliminate electrostatic fire accident oily products combined with process, to ensure production personnel health considerations if glue stick on the skin, can clean water and soap. Guilin PUR adhesive industry complaints to obtain high strength adhesive interface, the interface to establish the molecular level of close contact, molecular spacing generally should be less than 0. 5nm。
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