Advantages of TPR material processing in Jiangxi

TPE material is used for overmolding, with TPE soft rubber as the soft outer layer,

TPE is a classic aggregation-induced emission molecule, which has no fluorescence in solution but strong fluorescence in solid state, so transparent TPE material also has very important applications in organic optoelectronics and other fields.

Transparent TPE is used in stationery, sports equipment, etc., and has good UV resistance, chemical resistance, and easy coloring and processing characteristics.

TPR material processing

Common rigid materials for cooperation are mainly plastics, as well as metals and fabrics. TPE overmolding with fabrics is mainly used in luggage products, and like metal overmolding, it is generally fake overmolding.

TPE overmolding generally uses a two-shot injection molding process, that is, fixing the injection molded rigid plastic part on the overmolding mold,

Since any impurities in the TPE material may affect the transparency of the product, attention must be paid to sealing during storage, transportation, and feeding to ensure that the TPE raw material is clean. Especially if the TPE raw material contains moisture, it will cause deterioration when heated, so it must be dried. During injection molding, a drying hopper must be used for feeding.

Due to the high light transmittance of transparent TPE materials, strict requirements are placed on the surface quality of the material products. There must be no defects such as streaks, pores, whitening, halos, black spots, discoloration, poor gloss, etc. Therefore, throughout the injection molding process, great attention and strict or even special requirements must be paid to TPE raw materials, equipment, molds, and even product design.

TPR material processing

Then, at a suitable temperature, the TPE soft rubber is injection overmolded onto the hard plastic part, and after cooling, the product is obtained. The injection temperature for overmolding varies depending on the hard plastic material being overmolded.

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

Styrenic transparent TPE is widely used in the footwear industry, largely replacing rubber; at the same time, its use in industrial rubber products such as rubber sheets and plates is also expanding.

Transparent TPE, specifically, is a thermoplastic elastomer, while TPR is translated from English, strictly speaking called thermoplastic rubber, which is the most basic difference. TPE is generally modified from SEBS base material, while TPR is modified from SBS base material.

TPR material processing

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.