Recently,i realise that more and more customers have high demand for low density and super-light TPE/TPR materials. For what motivations,one is based on the light weight of the material , which is relatively portable for the user;two is reducing the density of materials and cost of raw materials,three is other sepcial requirments.
Generally speaking,the density of TPE(Thermoplastic Elastomer)/TPR is about 0.88-1.3.Transparent TPE/TPR materials with no filler is about 0.88-0.95 belong to floating material. but this density mustn’t come up to the standard of super-light TPE/TPR materials.at present,there are some low density TPE/TPR materials appeared in the market which density is about 0.6-0.8,some industry insiders even said that the lowest density can reach to 0.3-0.5.anyway,According to the current technology of TPE industry, foam is an inevitable way to produce ultra light TPE material,so let us talk about the foaming TPE/TPR materials.
According to the different products of foaming TPE,we can use the way of injection molding or extrution to process.
Chemical foaming is better than Physical foaming because Physical foaming has very high demands on machine and the higher investment.
Chemical foaming is better than Physical foaming because Physical foaming has very high demands on machine and the higher investment.
Requirements for TPE materials
Suitable hardness:60-80 shore A,high Melt Strength,no filler
Suitable hardness:60-80 shore A,high Melt Strength,no filler
The foaming agent.
It is the best to use HYDROCEROL BIH or EXOCEROL232 but not foaming agent AC.foaming agent AC has so many disavantage,such as: Fast heating,easy to melt fracture, roughness surface.
It is the best to use HYDROCEROL BIH or EXOCEROL232 but not foaming agent AC.foaming agent AC has so many disavantage,such as: Fast heating,easy to melt fracture, roughness surface.
