How is Hunan overmolding fire-resistant TPE?

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

TPE is a classic aggregation-induced emission (AIE) molecule, meaning it has no fluorescence in solution but exhibits strong fluorescence in the solid state. Therefore, transparent TPE materials also have important applications in fields such as organic optoelectronics.

Diene-based transparent TPE, mainly an isomer of natural rubber, is also called thermoplastic trans-natural rubber. Although its heat resistance and mechanical strength are inferior to rubber, it is widely used in shoemaking, sponge, optical film, and other industrial rubber products due to its good transparency, weather resistance, electrical insulation, and photodegradability.

Overmolding fire-resistant TPE

Commonly associated rigid materials are mainly plastics, but also metals and fabrics. TPE injection bonding with fabric is mainly used in luggage products, similar to metal overmolding, generally categorized as false overmolding.

TPE overmolding injection typically uses a two-shot injection molding process, where the injection-molded rigid plastic part is fixed in the overmolding mold,

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

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

Overmolding fire-resistant TPE

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

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

The transparent grade comes in transparent and semi-transparent series, each with multiple hardness levels; excellent transparency; smooth and soft surface; good yellowing resistance, tear resistance, and tensile strength; environmentally friendly; suitable for various transparent series products.

To achieve the matte appearance of thermoset 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 easy. Abrasive 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.

Overmolding fire-resistant TPE

Commonly associated rigid materials are mainly plastics, but also metals and fabrics. TPE injection bonding with fabric is mainly used in luggage products, similar to metal overmolding, generally categorized as false overmolding. True overmolding is more common in two-shot injection molding and two-color injection molding, where the main material for TPE overmolding injection is plastic.