What is the composition of the edge hot-melt adhesive?
Vinyl acetate copolymer (EVA) as the main material, adding tackifier and other components of the solid binder, with fast bonding, high strength, aging resistance, no poison, good thermal stability
The adhesive bonded hot melt adhesive is a kind of adhesive specially applied to artificial board. It is a kind of environment-friendly and solvent-free thermoplastic adhesive. When the hot melt is heated to a certain temperature, from the solid to the molten state, when applied to the artificial board substrate or the edge material surface, the cooling becomes solid, and the material is bonded with the base material.Features of sealing hot melt adhesive1., solid content of 100%, there is void filling, to avoid the edge rolling, bubbles and cracks caused by the deformation, dislocation and contraction of the glued parts. Because of no solvent, the moisture content of wood has not changed, and there is no danger of fire and poisoning.2. glue and adhesive bonding fast, but the number of seconds interval, sawing and cutting edges can be completed in 24 seconds, without drying time, can be used for bonding wood pipelining and automation, greatly improving the production efficiency, saves the cost of building.3., wide use, suitable for bonding all kinds of materials.4., a number of bonding can be carried out, that is, on wood, hot melt adhesive, due to cooling and curing and not meet the requirements, you can re heating for two times bonding.5., high temperature, medium temperature, low temperature and other furniture edge, hot melt adhesive can be selected.
Use elastomers, tackifier and plasticizers, antioxidants and so on.Hot melt adhesive with thermoplastic polymer based, can be made into granules, film, rod and other forms. At room temperature, it is the 100% solid without solvent.The raw material of hot melt adhesive is easy to obtain, and the preparation process is simple.Example of hot melt adhesive formulaPolyethylene (medium molecular weight)Sixty-threePolyisobutyleneTenbutyl rubberEightMicrocrystalline waxNineteenIn the formulation, polyethylene is used as the base material of hot-melt adhesive, and the addition of polyisobutylene and butyl rubber is to prevent the dispersion of polyethylene in hot microcrystalline wax and to increase the cohesive strength of hot melt adhesive. Polyisobutylene has high molecular weight and low dispersibility, and mainly plays a role in increasing cohesive strength. Butyl rubber is characterized by high dispersibility and low molecular weight, which mainly play the role of plasticization and crystallization resistance.[application] apply to the vast majority of plastic itself or plastic and metal, ceramics, glass, rubber and other materials between the adhesion.
