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Performance Evaluation of Hot Melt Adhesive

Views:1     Author:Site Editor     Publish Time: 2019-06-04      Origin:Site

Hot melt adhesives have their own characteristics as a type of adhesive, and the hot melt adhesive testing method can be classified according to the type of rubber and the application of the rubber. Among them, the types of rubber types are mainly: non-pressure-sensitive hot melt adhesive testing and pressure sensitive hot melt adhesive testing. The main difference between the two different detection methods is determined by the nature of the glue. For example, non-pressure-sensitive hot melt adhesives (EVA, POE, PA, TPU, etc.) will detect appearance, softening point, viscosity, open time, curing speed, cohesive strength, high temperature resistance, low temperature resistance, VOC and other indicators. For the pressure sensitive hot melt adhesive, it will detect the appearance, softening point, viscosity, three forces (initial adhesion, peeling, holding), cohesive strength, elongation, VOC, odor and other indicators.


hot melt PA adhesive

 

In addition, for the different applications of the rubber, the content and method to be tested will take into account the customer's actual production process and application environment, and then carry out the corresponding laboratory simulation evaluation test. Specific tests include: the performance of the glue (customer coating process and heat stability of the glue), the bonding test of the customer's substrate, the high and low temperature resistance of the test sample, and the accelerated aging performance of the test sample (period of use) and so on.



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