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HomeNewsGeneral Introduction of Hot Melt Adhesives

General Introduction of Hot Melt Adhesives

Primary data of sizzling soften glue

Sizzling soften adhesive, or sizzling glue, is a plastic adhesive. Its bodily state modifications with the temperature change. Nevertheless, its chemical properties stay unchanged. It’s non-toxic and tasteless. And it is an environmentally pleasant chemical product. Because it is stable, it’s straightforward to bundle, transport and retailer. It’s solvent-free, pollution-free, and non-toxic. It has benefits of straightforward manufacturing course of, excessive added worth, excessive bonding power, and quick pace.

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

Sizzling soften adhesive fundamental resin

The essential resin of sizzling soften adhesive is ethylene and vinyl acetate copolymerized below excessive temperature and excessive stress, specifically EVA resin. This resin is the primary element for making sizzling 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 higher 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 will likely be diminished. The selection of its auxiliary agent ought to select the suitable ratio of ethylene and vinyl acetate.

Improvement of recent hotmelt adhesives

Curable and practical sizzling soften adhesives are the 2 main classes of recent merchandise in the marketplace. The primary characteristic 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.

Practical sizzling soften adhesives are designed for particular events and may obtain particular capabilities, resembling water-soluble or dispersible hot-melt adhesives, hot-melt sealants, hot-melt pressure-sensitive adhesives, and so on.

Beneath are directions for warm soften sealants. It’s a one-component, solvent-free, non-fogging, non-vulcanizing, everlasting plastic insulating glass first sealant based mostly on polyisobutylene rubber. Sizzling 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, stainless-steel and different supplies. As a consequence of its extraordinarily low water vapour transmission fee, it types a superb moisture-resistant system with elastomeric sealants. Options: good sealing impact, straightforward high quality assurance, no curing interval, saving flooring house. It additionally has options of environmentally pleasant, no waste in use, clear setting, saving time, uncooked supplies, workers, and decreasing manufacturing prices.

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

GC Adhesives Firm have been dedicated to manufacture sizzling soften adhesive and develop new merchandise for years. Because the huge functions of sizzling soften adhesives, we’re fairly happy to start out cooperation with your corporation for a large market.

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