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Zhenjiang import hot melt adhesive complaints

by:Sinograce Chemical     2020-11-25
Zhenjiang imported hot melt adhesive complaints zhenjiang hot melt adhesive complaints 10, when pur hot melt glue machine heating platen press into the new polyurethane plastic barrels, should open the glue valve, complete discharge residual air in the plastic bucket, and will take the air bubbles pur hot melt adhesive ruled out clean, avoid polyurethane hot melt adhesive with air into the pump body and the hot melt adhesive machine in the throat. Fourth, resistance to temperature. Hot melt adhesive is more sensitive to temperature. The temperature reached a certain degree, hot melt adhesive began to soften, below a certain temperature, hot melt adhesive will become fragile, so choose hot melt adhesive must fully consider the product's environmental temperature change. Water soluble with its functional and environmental protection, and the price is low, will be the future direction of coating. Five, sticky. Hot melt adhesive viscosity points late early viscosity and viscosity. Only late early viscosity and viscosity is consistent, can make the hot melt adhesive and then remained stable. In the process of production of hot melt adhesive, shall guarantee that the oxygen resistance, brine resistance, resistance to acid, alkali and a plastic. Being the different material, and then play by hot melt adhesive viscosity is also different, therefore, should choose according to different material different hot melt adhesive. Zhenjiang import hot melt adhesive complaints if you are unwell seek immediate emulsion type and solvent type and hot melt pressure sensitive adhesive. Varieties of modified 4, unless there are other people beside help, and in the accident, because of mechanical damage or personnel injury, can instantly to help or first aid, otherwise don't separate the moisture in the pur reactive polyurethane hot melt adhesive machine equipment for disassembling and maintenance. Defect is poor film-forming, washing fastness, pu can't stick hot glue. The way such as mixing, grafting of existing varieties were modified to improve the performance of hot melt adhesive. Such as stabilizing agent to prevent oxidation; Tackifier improve bonding strength; Paraffin reducing viscosity change surface properties; All kinds of fillers can improve the viscosity and melting point and bonding strength, etc. To study various varieties, dosage, chelating agent and formula optimization to meet different needs. ( 2] Used by the tool before drying of glue can be used warm water to clean. Its advantage is: many varieties, environmental protection, low prices. New product development of zhenjiang import complaints now there are a lot of hot melt adhesive 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. Hot melt adhesive and curing functional hot melt adhesive are two major types of new product on the market. The former main characteristic is that improve the hot melt adhesive high temperature resistant characteristics, improve the softening point to more than 120 ℃, thus expanding the scope of its use; Functional hot melt adhesive is for a particular occasion, can realize specific functions to meet the needs of all aspects. Such as water soluble or decentralized hot melt adhesive, hot melt sealant, hot melt pressure sensitive adhesive and so on. Below is the hot melt sealant. It is a kind of polyisobutylene rubber as basic material of one-component, solvent free, not out of the fog, sulfide, has a permanent plastic insulating glass sealant. Hot melt butyl sealant in relatively wide temperature range its plasticity and sealing, and the surface cracks, the same hard. It on the glass, aluminum alloy, galvanized steel, stainless steel and other materials have good adhesive properties. Due to its extremely low water vapor transmittance, it can form a with elastic sealant excellent resistance to moisture system. Characteristics: good sealing effect, easy quality assurance; Without curing period, save area; Is environmental protection product, the use of no waste, clean environment; Save time, raw materials, personnel, reduce the production cost. Defect is due to the use of the oily solvent, so environmental protection lacking a bit, especially now that oil prices, oil solvent prices soaring all the way, most of the coating glue due to the cost is too high, so use more bad of the oily solvent, leading to environmental protection is not up to standard, in addition with the national environmental standards to further improve, so for environmental requirements of the coating adhesive is higher and higher. Zhenjiang import hot melt adhesive is suitable for on-line complaints peel lee, without thermalization PH 6. 0 ~ 7. 0 work to maintain good health always stored in shady and cool place, avoid direct sunlight, keep temperature is 5 ~ 40 ℃ dry after printing water-based laminating adhesive edit operation performance is good, easy to besmear to brush, easy to clean, wet cloth to wipe away dirt viscosity of 10000 ~ 300000 mpa. S if the glue on the skin, can clean water and soap.
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