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General Introduction of Hot Melt Adhesives


Fundamental data of scorching soften glue

Scorching soften adhesive, or scorching glue, is a plastic adhesive. Its bodily state adjustments with the temperature change. Nonetheless, its chemical properties stay unchanged. It’s non-toxic and tasteless. And it is an environmentally pleasant chemical product. Because it is strong, it’s simple to bundle, transport and retailer. It’s solvent-free, pollution-free, and non-toxic. It has benefits of easy manufacturing course of, excessive added worth, excessive bonding power, and quick velocity.

Present varieties are modified by mixing, grafting and different strategies to enhance the efficiency of scorching soften adhesives. For instance, stabilizers are used to stop oxidation; tackifiers to enhance bonding power; paraffin to cut back viscosity and alter floor properties. Numerous fillers can enhance viscosity, melting level and bonding power. It’s of nice worth to analysis the range and dosage of assorted compounding brokers, and optimize the system to satisfy completely different wants. 

Scorching soften adhesive primary resin

The fundamental resin of scorching soften adhesive is ethylene and vinyl acetate copolymerized beneath excessive temperature and excessive stress, particularly EVA resin. This resin is the primary element for making scorching soften adhesive. The proportion and high quality of the fundamental resin decide the fundamental properties of the recent soften adhesive. Soften index (MI) 6-800, low VA content material. The upper the crystallinity, the upper the hardness. Beneath the identical circumstances, the larger the VA content material, the decrease the crystallinity, the extra elastic. Excessive power and excessive melting temperature are additionally poor in wetting and permeability of adherends. Quite the opposite, if the melting index is simply too massive, the melting temperature of the glue is low, the fluidity is sweet, however the bonding power might be diminished. The selection of its auxiliary agent ought to select the suitable ratio of ethylene and vinyl acetate.

Growth of recent hotmelt adhesives

Curable and useful scorching soften adhesives are the 2 main classes of recent merchandise in the marketplace. The primary function of the previous is to enhance the excessive temperature resistance and enhance the softening level to above 120°C, thereby increasing its scope of use.

Useful scorching soften adhesives are designed for particular events and might obtain particular capabilities, reminiscent of water-soluble or dispersible hot-melt adhesives, hot-melt sealants, hot-melt pressure-sensitive adhesives, and many others.

Beneath are directions for warm soften sealants. It’s a one-component, solvent-free, non-fogging, non-vulcanizing, everlasting plastic insulating glass first sealant primarily based on polyisobutylene rubber. Scorching soften butyl sealant maintains its plasticity and sealing properties over a large temperature vary with out cracking and hardening of the floor. It has good adhesion to glass, aluminum alloy, galvanized metal, chrome steel and different supplies. Resulting from its extraordinarily low water vapour transmission fee, it types a wonderful moisture-resistant system with elastomeric sealants. Options: good sealing impact, simple high quality assurance, no curing interval, saving flooring house. It additionally has options of environmentally pleasant, no waste in use, clear surroundings, saving time, uncooked supplies, employees, and decreasing manufacturing prices.

Along with the extra basic EVA and TPR scorching soften adhesives, enterprises must also deal with the analysis and growth of some high-tech scorching soften adhesive merchandise. They’ve been broadly used within the West and have nice utility potential, together with: reactive scorching soften adhesives, water dispersion scorching soften adhesives adhesive, high-grade PA hot-melt lining pellets and high-strength hot-melt pressure-sensitive adhesive, and many others.

GC Adhesives Firm have been dedicated to manufacture scorching soften adhesive and develop new merchandise for years. Because the huge purposes of scorching soften adhesives, we’re fairly happy to begin cooperation with your online business for a large market.

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