Is overmolding TPR in Beijing reliable?

In the elastomer industry, TPE usually refers to a composite functional material obtained by modifying SEBS.

TPE high transparency material has different product properties in different applications. Thermoplastic elastomer is also called TPE material. Transparent TPE not only has the processing properties of thermoplastics but also the physical properties of vulcanized rubber, which is the advantageous combination of the advantages of plastics and rubber. Transparent TPE is widely used in people's daily production and life.

To prevent contamination of TPE raw materials and the presence of old materials or impurities in the screw and attachments, especially materials with poor thermal stability, all parts should be cleaned with screw cleaner before use and after shutdown to ensure no impurities adhere.

<\/p>TPE elastomer soft gel has excellent comprehensive properties and is the most commonly used soft gel material for two-shot injection molding, overmolding, and two-color injection molding.<\/p>

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

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

Thickness of TPE, TPR overmolding layer. In most overmolding applications, a wall thickness range of 1.5-3.0mm can ensure good adhesion. If the TPE layer is too thin, injection molding is difficult, adhesion strength is low, and feel is poor. If the TPE layer is too thick, on the one hand, cost is high, on the other hand, defects such as shrinkage and bubbles are prone to occur.<\/p>Two-shot molding TPR

<\/p>Common processing methods include one-shot molding using 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, etc. TPE soft gel material has a special comfortable touch. The introduction of TPE material improves the grip and tactile feel of the product.<\/p>

Overmolding temperature is generally controlled at 30-50°C, but for some TPE grades with strong crystallinity,

Transparent TPE is used in appliance housings, handles, grips, etc. It shows very good hand feel, is anti-slip and labor-saving, and has the characteristics of easy coloring and processing. It also has a wide design space.<\/p>

TPE is a classic aggregation-induced emission molecule, meaning it has no fluorescence in solution but strong fluorescence in solid state. Therefore, transparent TPE materials also have important applications in organic optoelectronics and other fields.<\/p>Two-shot molding TPR

<\/p>The mold temperature can be appropriately increased to 70°C, which is beneficial for bonding and also achieves a more glossy overmolding surface.<\/p> <\/div>