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Reasons why high transparency elastomer materials need to be baked

Reasons why high transparency elastomer materials need to be baked

For some of the high transparency elastomers used for extrusion, single material injection molding, it is not necessary to bake. Usually high transparency elastomer water absorption rate is only about 0.5%, if the product appearance gloss and other requirements are not very high, it is not necessary to bake the material. So what are the reasons why high transparency elastomer materials need to bake? The following small series to you to analyze some of the reasons.
High transparency elastomer materials need to bake for the following reasons:
1, if the relative humidity of the warehouse environment is high, the water content of high transparency elastomer particles may exceed the standard. At this point, the molding must be baked before processing.
2. In order to avoid the residual moisture in the high transparency elastomer particles in the molding process to volatilize, resulting in the appearance of the product, prepare the drying material before molding.
3, usually high hardness of high transparency elastomer materials, recommended baking temperature is 60~80℃; And low hardness of high transparency elastomer materials, it is recommended that the baking temperature is 40~60℃. Next, it is the time of baking material, usually 2~4 hours, the specific or to see the material.


4.Because the humidity of the warehouse is high, if it is not sealed in time, it may lead to excessive moisture of high transparency elastomer particles, so it is necessary to dry before use.
According to the industry and related requirements to determine whether the need for high transparency elastomer drying operation, the appearance of the product gloss and other requirements are not high, do not need to carry out this operation, but if it is to do the packaging products, manufacturers will be on the appearance of the product gloss requirements are relatively high, before processing products need to bake. This is also in order to effectively prevent the high transparency elastomer material in the residual water will volatilize during molding and lead to the product air grain, affect the appearance, especially electronic products, fitness equipment for high transparency elastomer material requirements will be higher.

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