Hot melt adhesive is a plastic adhesive

Hot melt adhesive is a plastic adhesive that changes its physical state with temperature over a certain temperature range and is an environmentally friendly chemical product. Sometimes, the hot melt machine draws.

    1. Cohesive strength of hot melt adhesive

    The cohesive strength of the hot melt adhesive colloid and the influence law of the drawing are basically: the cohesive strength is large, and the drawing phenomenon is obvious; on the contrary, the cohesive strength and the drawing phenomenon will not appear.

    2, curing time of hot melt adhesive

    The curing time of the hot melt adhesive is very important for the drawing phenomenon. Generally, the hot melt adhesive with a short curing time has a low probability of drawing, because the filament formed during the hot melt adhesive is sprayed out of the muzzle due to the rapid speed. Curing, can not continue to stretch, prone to breakage, and sometimes can not see the wire pulled out.

    3. Rheological properties of molten hot melt adhesive

    The rheology of the molten colloid plays a decisive role in the drawing, and the corresponding design of the hot melt adhesive formulation, the choice of materials in the formulation and compatibility.

    4, the impact of machine temperature:

    The temperature is too low, so that the consistency of the glue itself is increased, and the drawing phenomenon occurs.

   The above is the reason why the hot melt adhesive has a drawing phenomenon. If the above phenomenon occurs during operation, it must be handled in time. Hangzhou Renhe Hot Melt Adhesive Co., Ltd. specializes in the research, development, manufacturing, sales and technical services of hot melt adhesives and hot melt pressure sensitive adhesives. Please contact us if necessary!

Shanghai Zhenniu Chemical Co., Ltd.