Which TPR material supplier in Anhui is good?

TPE overmolding generally uses a two-shot injection molding process,

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

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

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The hard plastic part that has been injection molded is fixed in the overmolding mold, and then at the appropriate 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 depends on the hard plastic material being overmolded.

TPE overmolding, as the name suggests, is to overmold TPE soft material onto other materials.

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

Since any impurity in the TPE material may affect the transparency of the product, care must be taken to seal and keep the TPE raw material clean during storage, transportation, and feeding. In particular, if the TPE raw material contains moisture, heating will cause the material to deteriorate, so it must be dried. When injection molding, a dry hopper must be used for feeding.

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Common processing methods include one-shot molding with a two-color injection molding machine, or using a regular injection molding machine with an overmolding mold for two-shot injection molding. Products made by TPE overmolding are generally handles, grips, and similar items. TPE soft material has a special comfortable touch, and the introduction of TPE material improves the grip and tactile feel of the product.

During the molding process of TPE material, during the filling of the mold cavity,

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.

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

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If the filling performance of the product is poor, there will be too much pressure drop, excessively long filling time, inadequate filling, etc., causing quality issues in the product.