Melting point of hot melt adhesive

Best answer: The melting point of hot melt adhesive is 160~180 degrees Celsius. Hot melt adhesive is a kind of plastic adhesive. In a certain temperature range, its physical state changes with the change of temperature, while its chemical properties remain unchanged. It is nontoxic and tasteless, and it is an environmentally friendly chemical product. Because the product itself is solid, it is convenient for packaging, transportation and storage, and it is solvent-free, pollution-free and nontoxic. As well as the advantages of simple production process, high added value, high bonding strength and high speed.

The melting point of hot melt adhesive is 160~180 degrees Celsius. Hot melt adhesive is a kind of plastic adhesive. In a certain temperature range, its physical state changes with the change of temperature, while its chemical properties remain unchanged. It is nontoxic and tasteless, and belongs to environmental protection chemical products. Because the product itself is solid, it is convenient for packaging, transportation and storage, and it is solvent-free, pollution-free and nontoxic. As well as the advantages of simple production process, high added value, high bonding strength and high speed.

The basic resin of hot melt adhesive is ethylene and vinyl acetate copolymerized at high temperature and high pressure, that is, outdoor active resin. This kind of resin is the main component for making hot melt adhesive, and the ratio and quality of basic resin determine the basic properties of hot melt adhesive. (For example, adhesive ability, melting temperature and bonding strength of adhesive) Virginia tobacco is generally selected to have a content of 18-33, and melting index Virginia 6-800 has a low content. The higher the crystallinity, the higher the hardness. Under the same circumstances, Virginia tobacco has a high content, and the crystallinity is low and the elasticity increases. The selection of EVA melting index is also very important. The smaller the melting index, the greater the fluidity and the higher the melting temperature. On the contrary, if the melting index is too large, the melting temperature of the adhesive is low, the fluidity is good, but the bonding strength decreases. The additives should be selected with proper ratio of ethylene to vinyl acetate.

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