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Cohesion Strength Of EVA Hot Melt Glue Sheet
- Oct 27, 2017 -

Hot melts in fact belong to a kind of plastic adhesives, hot melts in a certain temperature range of its physical state will change with the temperature, but the chemical properties are not changed, its taste non-toxic tasteless, belong to environmental-friendly chemical products.EVA Hot Melt Glue Sheet

Hot Melt adhesives are used a hot melt glue machine to pass it through the heat and then melt the hot melts away, after the adhesive tape becomes a liquid thing, and then through the hot melt glue machine hot melt hose and hot melt glue gun, send it to the surface of the adhesive, hot melts after the success of the bonding up.EVA Hot Melt Glue Sheet

In the formulation, polyethylene is used as the base material of hot melt adhesive, and the purpose of adding poly isobutene and butyl rubber is to prevent polyethylene from dispersing in Geviching wax and increasing the cohesion strength of the hot melt adhesive. The molecular weight and dispersibility of poly-butene are mainly increased by the effect of cohesive strength, the dispersion of butyl rubber is large, the molecular weight is low, and the effect of plasticizing and crystallization is mainly. Hot Melt adhesive is a kind of solid-state fusible polymer which does not need solvent and contains no moisture 100%. It is solid at room temperature, heated and melted to a certain temperature to flow, and has a certain viscous liquid. The melted Eva Hot melt adhesive is light brown or white. Eva Hot Melt adhesive consists of basic resin, viscosity-increasing agent, viscosity regulator and antioxidant.EVA Hot Melt Glue Sheet Eva is far more upscale than PVC. Pure Eva slippers are very expensive. Now Eva raw materials more than 10,000 tons, EVA processing generally two methods, the traditional use of foam machine, out of the product is Eva Plate, and then according to the need to cut. The other is to use the injection moulding machine, Like PVC injection mold stereotypes. Of course, foam Eva can also be carried out two times foam, mainly used to make the bottom of sports shoes. You can also make cushioning parts for other sports.EVA Hot Melt Glue Sheet

Crystalline silicon solar cell encapsulation material is EVA, it is ethylene and vinyl acetate copolymer, chemical called polypropylene resin, Molecular formula: (C3H6) n, EVA is a kind of hot-melt adhesives, at room temperature without viscous and viscous, in order to operate, after a certain condition hot pressing will occur melting bonding and crosslinking curing, and become completely transparent, long-term practice has proved that it in solar cell packaging and outdoor use have been quite satisfactory results. After curing the EVA can withstand the atmospheric change and has the elasticity, it will crystal Wafer group "upper cover Cushion", the silicon wafer group seals, and the upper protective material glass, the lower layer protection material TPT (PVDF composite membrane), uses the vacuum lamination technology to glue as one.EVA Hot Melt Glue Sheet