How to choose thermoplastic TPR materials in Guangzhou

TPE elastomer soft gel can be adjusted to suitable hardness according to the physical property requirements of the product (hardness range Shore 25-90A),

TPE high-transparency materials have different product properties when applied in different aspects. Thermoplastic elastomer is also called TPE material. Transparent TPE not only has the processing properties of thermoplastics but also the physical properties of vulcanized rubber. This is the so-called advantageous combination of the advantages of plastics and rubber. Transparent TPE is widely used in people's life and production.

Diene transparent TPE, diene TPE is mainly 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, due to its good transparency, weather resistance, electrical insulation and photodegradability, it is widely used in shoemaking, sponge, optical film and other industrial rubber products.

<\/p>And suitable physical properties (such as wear and scratch resistance, adhesion, melt index, etc.). It provides various possible material application solutions for different products.

TPE overmolding (two-shot injection molding) key point is to make TPE and the substrate materials such as PP, ABS, PC, PA have good adhesion. To make TPE and the substrate bond well,

Transparent TPE is used in stationery, sports equipment, etc. It has good UV resistance, chemical resistance, and is easy to color and process.

TPE is a classic aggregation-induced 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.

<\/p>According to the chemical principle of similarity and compatibility, the key is that TPE and the substrate should have similar polarity, so that molecular chain-level fusion can occur between TPE and the substrate.

For two-shot overmolding of nylon using a regular injection molding machine, it is recommended before overmolding,

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

Since TPE transparent materials require high light transmittance, the surface quality of the product must be strictly controlled, without any defects such as streaks, pores, whitening, haze, black spots, discoloration, poor gloss, etc. Therefore, throughout the entire injection molding process, strict and even special attention must be paid to TPE raw materials, equipment, mold, and even product design.

<\/p>First, preheat and bake the nylon parts, because nylon has strong water absorption and overmolding requires high molding temperature; preheating before overmolding can remove moisture and facilitate rapid hot overmolding.