What are the rubber TPE materials in Hubei?

TPE is processed using overmolding (injection overmolding), common products include handles, grips, electronic materials, etc.

Transparent TPE materials have different product properties in different applications. Thermoplastic elastomer, also called TPE material, not only has the processing properties of thermoplastic plastics, but also has 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 daily life and production.

Transparent TPE is used in appliance housings, handles, grips, etc. It exhibits very good hand feel, is anti-slip and labor-saving, and is easy to color and process. It also has a very wide design space.

Rubber TPE materials

The material gives the product a comfortable touch, improves grip, enhances the product's aesthetics and added value. Most products are exported to developed countries and regions such as the United States, Japan, and the European Union.

The key point of TPE overmolding (two-shot injection molding) is to ensure good adhesion between TPE and the substrate materials such as PP, ABS, PC, PA, etc. To achieve good adhesion between TPE and the substrate,

Transparent grades are divided into transparent and translucent series, each with various hardness levels; excellent transparency; smooth and soft surface; good anti-yellowing performance, tear resistance, good tensile strength; environmentally friendly; suitable for various transparent series products.

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

Rubber TPE materials

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

The overmolding temperature is generally controlled at 30-50°C, but for some highly crystalline TPE grades,

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

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

Rubber TPE materials

The mold temperature can be appropriately increased to 70°C, which is beneficial for bonding and also achieves a more glossy overmolded surface.