Now the hot melt adhesive products sold on the market are basically traditional products, and many environments have high performance requirements for hot melt adhesives. On this basis, the traditional properties of hot melt adhesive must be improved, so what is the way to improve it?
Modification of existing varieties
In order to improve the properties of the hot melt adhesive, the existing varieties were modified by mixing and grafting. For example, stabilizer is used to prevent oxidation; tackifier improves bonding strength; paraffin reduces viscosity and changes surface properties; various fillers can improve viscosity, melting point and bonding strength. The variety and dosage of various coordination agents were studied, and the formula was optimized to meet the different needs.
Speed up the development of new products
Curing hot melt adhesive and functional hot melt adhesive are the two new products in the market. The former is mainly characterized by improving the high temperature resistance of hot melt adhesive and raising the softening point to more than 120 degrees, thereby expanding its scope of application. The functional hot-melt adhesive is a kind of adhesive for specific occasions, which can achieve specific functions to meet the needs of all aspects. Such as water soluble or dispersive hot melt adhesive, hot melt sealant, hot melt pressure sensitive adhesive and so on. The following is the explanation of the hot melt sealant. It is the first line of a hollow glass sealant with polyisobutylene rubber as the base material of one component, solvent free, no fog, no cure, with permanent plastic. The hot-melt butyl sealant maintains its plasticity and seal in a wide temperature range, and the surface is not cracked and hard. It has good adhesion to glass, aluminum alloy, galvanized steel, stainless steel and other materials. Because of its extremely low water vapor transmission, it can form an excellent anti wet gas system with elastic sealant. Features: good sealing effect, easy quality guarantee, no curing period and less floor area. It belongs to environmental protection product. It uses no waste and clean environment. It saves time, raw materials, staff and production cost.
Development of high performance hot melt adhesive
In addition to general EVA, TPR hot melt adhesive, enterprises should also focus on research and development in the West has a large number of applications and the potential application of some high-tech hot melt adhesive products, including: reactive hot melt adhesive, water dispersion type hot melt adhesive, hot melt lining rubber and high grade PA high strength HMPSA etc.. Meanwhile, domestic manufacturers of raw materials should also recognize the development potential of the hot melt adhesive industry, speed up the localization rate of raw materials, and reduce the loss of foreign exchange caused by massive imports of raw materials.
The improvement of the new hot melt adhesive is not completed overnight. Technology is progressing, and any form of product will be replaced by new products. Before the new product is stable, the traditional hot melt adhesive products still occupy a large market.