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Foshan industry PUR adhesive agent

by:Sinograce Chemical     2021-03-02
Foshan PUR adhesive agent in foshan industry PUR adhesive agent catalyst choice not only depends on the kinds of monomers, but also depends on the adhesive drill agent USES. Four PUR adhesive agent, automobile electronic foshan industry non conductive solid crystal glass transition temperature ( Tg) At above 200 ℃, have good pervious to light, yellowing resistance, UV resistance is good wait for a characteristic, can be widely used in the chip bonding. Moisture maintenance pur reactive polyurethane hot melt adhesive machine, need to take the following described the main safety precautions: many poly acid amine ternary copolymer can be used as basic material of hot melt adhesive machine. They are widely used in fiber cat in aspects and so on. These series of products used in automobile electronic components, fixed component adhesive, filling and sealing, which can effectively improve the seismic resistance of products. Such as: power supply, car lamps, auto HID, thermal conduction system, navigator, mirrors, vehicle traveling data recorder. Hot melt adhesive ( English name: Hot Glue) Is a kind of plastic adhesives, to a certain temperature range with the temperature change and change its physical state, and chemical properties unchanged, and its non-toxic tasteless, environmentally friendly chemical products. Because of the product itself is a solid, easy to packaging, transport, storage, no solvent, no pollution, non-toxic type; And simple production technology, high added value, the advantages of large bonding strength, high speed and popular. Powder glue cat agent additives can be dispersed in water and used. EVA hot melt adhesive industry foshan PUR adhesive agent 7, for the special structure of PUR hot melt adhesive machine pressure plate to clean up, due to the special structure of PUR hot melt adhesive machine heating plate can't clean up in a short time residual PUR polyurethane hot melt adhesive, the cleaning must be used in residual PUR polyurethane hot-melt adhesive dry nitrogen protection, shall not exceed 10 minutes, and clean up the glue that time shall not use any hard tool to clean up the PUR hot sol hot plate machine. Epoxy adhesive is characterized by low thermal expansion coefficient, high Tg, good heat resistance, mainly used for assembly. EVA hot melt adhesive is a kind of without solvent, excluding water solid meltability polymer; It is solid at room temperature, heat can melt to a certain temperature to flow, and has a certain viscosity liquid. EVA hot melt adhesive after melting, the pale brown or white. EVA hot melt adhesive by basic resin, tackifier and viscosity regulator and antioxidant components, etc. 1, smell concept: pay attention to safety when using (1) coating, water-based glue brush and solvent rubber brush can not be used interchangeably; ( 3) Sealing and isocyanate method: choose the blocking agent of the right to water sensitive side - isocyanate NCO groups protected, make its loss of activity, add extender chain agent and crosslinking agent, a total of milk made from latex when used by a certain temperature and special catalyst demasking, generating - NCO terminal base, chain extender to the preparation of waterborne polyurethane (2) shall be equipped with more than 2 at the same time brush glue, glue brush use 1 hour or so, application of clean water, soak in clear water, switch to the other, the two plastic brush used interchangeably, keep soft bristles; ( 11) Reduce crystallinity or destroy crystalline conformation ( 12) Reduce the activation temperature or with low activation temperature of emulsion compound ( 13) Choose appropriate construction environment and construction methods ( 14) Curing agent or packing ( 15) Wet glue increase solid content 6 pur polyurethane hot melt adhesive machine, after the break with hot melt glue barrel must be thoroughly clean up the hot melt adhesive pressure plate immediately on the remaining pur hot melt adhesive, in cleaning up pur hot melt adhesive machine hot glue plate, cannot use any hard tools, pressure plate, teflon coating to prevent scratches. Should they soft monomer and hard monomer, modified functional monomer on the composition of interdependence. Foshan industry PUR adhesive agent 1, moisture during maintenance PUR reactive polyurethane hot melt adhesive machine before work, must first put PUR moisture reactive polyurethane hot melt adhesive on the mechanical power and connection outside the total power to cut off, shall not be charged. Used by the tool before drying of glue can be used warm water to clean.
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