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Differentiation of hot-melt adhesives
Jan 20, 2018

First, the plastic color requirements should be different. If the object itself is no special color requirements, it is recommended to use yellow hot melt adhesive, yellow hot melt adhesive in general is better than white.

Second, was followed by surface treatment. Hot-melt adhesive on the surface of the object after treatment without other adhesives so strict, but the following objects surface dust, oil should be properly treated in order to make the hot melt adhesive to better play.

Third, the operation time. Fast operation is a major feature of hot melt adhesive. Hot melt adhesive work time is generally 15 seconds or so, with the modern production methods - the extensive use of the assembly line, hot melt adhesive job requirements shorter and shorter, such as bookbinding and speaker manufacturing hot glue operation time Required to reach about 5 seconds.

Fourth, temperature. Hot melt adhesive is more sensitive to temperature. The temperature reaches a certain level, the hot melt begins to soften, below a certain temperature, hot melt will become brittle, so the choice of hot melt adhesive must take full account of the temperature of the product where the environment changes.

Fifth, sticky. Hot melt adhesive viscosity early and late sticky. Only the early viscosity and viscosity after the same, in order to make the hot melt adhesive was followed stable. In the hot melt production process, it should ensure that it has antioxidant, anti-halogen, acid and alkali resistance and plasticity. Material is followed by the different material, the viscosity of hot melt adhesives are also different, therefore, should be based on different materials to choose different hot melt adhesive.


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