Where is the good TPE raw material supplier in Guangdong?

TPE materials are used in overmolding injection, with TPE soft rubber as the soft rubber outer layer,

To achieve the matte appearance of thermosetting rubber surfaces, a rougher mold surface is required. Generally speaking, the rough surface produced by electrical discharge machining (EDM) of the mold cavity will result in an excellent workpiece appearance and make demolding relatively simple. Abrasive methods such as steam spraying, sandblasting, or shot blasting, as well as chemical etching, can also be used to produce surfaces with different gloss and appearance.

Transparent TPE, specifically a thermoplastic elastomer, while TPR is translated from English and strictly called thermoplastic rubber, this is the most basic difference. TPE is generally compounded and shaped from SEBS base material, while TPR is derived from SBS base material.

TPE raw material supplier

Common hard materials used in combination are mainly plastics, as well as metals and fabrics. TPE overmolding with fabric is mainly applied to luggage and bag products, and like overmolding with metal, it is generally fake overmolding.

POM overmolding POM. Although POM has a low melting point, only 180℃.

To prevent contamination of TPE raw materials and the presence of old materials or impurities in the recesses of the screw and attachments, especially materials with poor thermal stability, all parts should be cleaned with a screw cleaning agent before use and after shutdown to ensure they are free of impurities.

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

TPE raw material supplier

However, due to its high crystallinity, forming a bonding layer on the covered surface requires high energy. At the same time, the self-lubricating property of POM is not conducive to the rapid covering of TPE material on the surface of hard plastic POM parts.

The temperature in the feeding zone should be set quite low to avoid blockage of the feed port and allow trapped air to escape.

Since any impurities in TPE materials can affect the transparency of the product, attention must be paid to sealing during storage, transportation, and feeding to ensure the TPE raw materials are clean. Especially if TPE raw materials contain moisture, heating will cause deterioration, so they must be dried. During injection molding, a drying hopper must be used for feeding.

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

TPE raw material supplier

To change the mixing state, the temperature in the transition zone should be set above the melting point of the masterbatch, so as to change the mixing state when using the masterbatch. The temperature near the nozzle should be set close to the required melting temperature.