How to choose TPE for Zhejiang auto parts

A bonding layer is formed at the interface between hard rubber and soft rubber,

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

To achieve the matte appearance characteristic of thermoset rubber, a rougher mold surface is required. Generally speaking, the rough surface produced by electrical discharge machining (EDM) of the mold cavity will result in 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.

Auto parts TPE

Greatly improves the overmolding adhesion between TPE soft rubber and hard plastic. False overmolding hardly involves the compatibility of the two materials; the overmolding of materials is achieved through mechanical force, through the design of mold and product and surface treatment, and through interlocking, allowing the soft and hard rubber to be joined together.

PP overmolding is a plastic with very weak polarity, which is very close to the polarity of TPE based on SEBS.

Since any impurity in TPE material can affect the transparency of the product, sealing must be ensured during storage, transportation, and feeding to keep the TPE raw material clean. Especially, if TPE raw material contains moisture, heating will cause it to deteriorate, so it must be dried. During injection molding, feeding must use a dry hopper.

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 rubberized fabric and rubber sheets is also expanding.

Auto parts TPE

Therefore, for overmolding PP, the most conventional TPE formula can be used directly, without adding polar modifiers additionally.

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

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

TPE high-transparency materials have different product properties when applied in different aspects. Thermoplastic elastomers, also called TPE materials, transparent TPE not only has the processing properties of thermoplastics but also the physical properties of vulcanized rubber. This is the so-called advantageous combination of plastic and rubber, and transparent TPE is widely used in people's life and production.

Auto parts TPE

Common matching hard materials are mainly plastics, as well as metals and woven fabrics. TPE injection bonding with woven fabric is mainly used in luggage products, and like metal overmolding, it is generally false overmolding. True overmolding is mostly seen in two-shot injection molding and bi-color injection molding, where the main material for TPE overmolding injection bonding is plastic.