Which Zhejiang fireproof TPE manufacturer is good?

TPE uses overmolding injection processing,

The thickness of TPE, TPR overmolding layer. In most overmolding applications, a wall thickness range of 1.5-3.0mm will ensure good adhesion. If the TPE layer is too thin, injection molding is difficult, adhesion strength is low, and hand feel is poor. If the TPE layer is too thick, on one hand cost is high, on the other hand it is prone to shrinkage, bubbles and other defects.

Diene transparent TPE, diene TPE is an isomer of natural rubber, so it is also called thermoplastic trans-natural rubber. Although its heat resistance and mechanical strength are not as good as rubber, it has good transparency, weather resistance, electrical insulation and photodegradability, and is widely used in shoemaking, sponge, optical film and other industrial rubber products.

Fireproof TPE manufacturer

Common products such as handles, grips, electronic materials, etc. The material gives the product a comfortable touch, improves grip, enhances product aesthetics and added value.

PP overmolding is a very weak polarity plastic, and its polarity is very close to that of TPE based on SEBS.

TPE is a classic aggregation-induced emission molecule, meaning it has no fluorescence in solution but strong fluorescence in solid state. Therefore, transparent TPE materials also have important applications in organic optoelectronics and other fields.

Because transparent TPE materials require high light transmittance, the surface quality of material products must be strict, without any streaks, pores, whitening, halos, black spots, discoloration, poor gloss and other defects. Therefore, in the entire injection molding process, great attention and strict or even special requirements must be placed on TPE raw materials, equipment, molds, and even product design.

Fireproof TPE manufacturer

Therefore, for overmolding PP, the most conventional TPE formula can be used directly, without adding additional polar modifiers.

Preheating the insert before overmolding helps improve adhesion strength,

Transparent grade includes transparent and translucent series, each with various hardness; excellent transparency; smooth and soft surface; good anti-yellowing performance, tear resistance, good tensile strength; meets environmental requirements; suitable for various transparent series products.

To prevent contamination of TPE raw materials and the presence of old materials or impurities in the recesses of the screw and accessories, especially materials with poor thermal stability, the screw cleaner should be used to clean all parts before use and after shutdown, so that no impurities adhere.

Fireproof TPE manufacturer

Because the preheating process can improve the compatibility of the insert material with TPE. The appropriate temperature of the insert needs to be discussed and determined with the material supplier.