Question 1: What happened to the shrinkage pattern of processing injection molded TPE adult products?

　　Answer:Many sizes of adult products are thicker, while TPE hardness is very low and shrinkage is larger. After molding, there will be obvious shrinkage pattern near the rubber inlet. General injection molding plant will use a lighter over the spark gun on the shrinkage location sweep, can reduce and eliminate shrinkage problems.

　　Question 2: Is there liquid TPE?

　　Response: On this issue, in fact, the plastic uncle in early 2009 just contact TPE materials, had plausibly heard some TPE seniors in the industry said similar to this material, so for quite a long time on the issue of plastic uncle is to hold a positive answer. However, with the gradual deepening of the understanding of TPE, for the existence of liquid TPE, Plastic Bo's views are as follows:

　　TPE (based on SEBS) is an alloy polymer material made of SEBS with softened oil and other additives physically co-mingled. When the TPE blending system in the oil and SEBS mass ratio of 10:1 or greater, then many times the blends do not do the pull strip granulation process, but rather blended into a paste gel-like blends. This gel-like TPE is a polymer material, at room temperature does not have the mobility and processability. Only after heating and melting, so that the TPE becomes fluid (liquid) at high temperature, can be molded. Gel-like TPE is usually poured (inverted mold) molding, that is, TPE with some equipment (these equipment temperature control is very important) melting and then poured into the mold to cool.

　　It seems that there is no such thing as liquid TPE (room temperature). Whether it is a gel or granular TPE, no matter what way of molding, heating it into a high-temperature fluid is a necessary process.

　　Question 3: What happened to the shrinkage pattern of injection molded TPE adult products?

　　Answer:Adult products are thicker in many sizes, and the hardness of TPE is very low, so the shrinkage is bigger. After molding, there will be obvious shrinkage pattern near the rubber inlet. General injection molding plant will use a lighter over the spark gun on the shrinkage location sweep, can reduce and eliminate shrinkage problems.

　　Question 4: What is the deformation of TPE hard rubber?

　　Answer: Hard rubber (such as PP, ABS, PC, etc.) in the overmolding TPE deformation occurs, mainly hard rubber pieces of thin size, in the overmolding of high temperature TPE melt softening deformation. As a countermeasure, we should do the reinforcement setting for the rubber parts, or choose another TPE grade, reduce the TPE overmolding temperature appropriately, or improve the position of the rubber mouth and the angle of the rubber.

　　Question 5: What is the problem of white powder or oil on the surface of TPE products?

　　Answer: The white powder is caused by the migration and precipitation of some additives added in the TPE mixing system. The appearance of oil, may be improper process operation or mixing system problems resulting in softening oil oozing out, may also be due to the precipitation of certain additives. As a countermeasure for improvement, the amount of additives should be reduced and the production process should be followed.

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