Introduction of TPE / TPR / SEBS

EVERLON® is a SEBS base TPE, which the middle of it is the Ethylene Butylene rubber and the end of it is the Polystyrene. Through the hydrogenation reaction, it result in excellent weatherability and stability of heat-resistant ability.


Generally called as TPE(thermoplastics Elastomer) or TPR(Thermoplastic Rubber), it is not same as the tradition rubber, the processing condition is more simple, no need to be batched but also can use the normal processing method of plastic, as following, injection molding, blow molding, extrusion, etc. In all of these processes, the material can be 100% recycled as a new green materials.

FAQ

Frequently Asked Questions

  • What Are Thermoplastic Elastomers?

    Thermoplastic elastomers (TPE) or Thermoplastic rubbers (TPR) are rubber like materials that applied widely with dynamic processing properties which are moldable at elevated temperatures and solidifies upon cooling. Thermoplastic materials can be heated to their melting point and cooled for solidifying, recycle heating again without significant degradation. The property benefits thermoplastic resins to be molded into a variety of shapes and structures for fitting requirements from many industries, especially on the TPE / TPR with the softness and flexibility designs.
  • There Are Six Types of TPEs ?

    The different types of TPEs with variety of properties provided plenty of modification options to develop formulations for fitting the requirements from high end applications, easy to be applied by wide range of operating processes, economic concerns to cost competitive solutions.

    • TPE-S : Styrenic block copolymers (TPE-s or TPS compounds based on SBS, SEBS)

    • TPE-O : Polyolefin blends (TPE-O or TPO)

    • TPV : Thermoplastic vulcanized alloys (TPE-V or TPV)

    • TPE-U : Thermoplastic polyurethanes (TPE-U or TPU)

    • TPE-E : Thermoplastic polyether ester elastomer (TPE-E or TPC)

    • TPE-A : Thermoplastic polyamides (TPE-A or TPA)

  • TPE Processing Options and Advantages ?

    TPE owns the property of moldable under heating process, it was typical to be operated by means of injection molding, extrusion molding and blowing. The original elastic properties showed again after cooling down, they are recyclable like thermoplastics. When designing and processing TPE, which parameters are highly different between types of TPE selected and operating equipment. Target advantages from processing TPE including :

    • It can be proceeded easily by a general thermoplastic molding machine.

    • The production efficiency improved with short cycle times.

    • Without vulcanization which saving energy consumption significantly.

    • Easy to recycle and reduce cost.

    • Process multi-component simultaneously for reducing assembly cost.

    • The formulations can be adjusted flexibly based on each unique requirement.

    • Suit to wide range of processing equipment.

    • The flexibility to fit the designs from easy coloring to soft touching property.

    • Fit wide range applications, such as industry fields, automotive, food packaging and pharmaceutical field.

  • TPE / TPR Material Selections ?

    There are several different thermoplastic materials to be selected for each unique requirement. With the versatility of these materials, conduct a correct evaluation on each application is necessary before developing TPE formulations.
    Asking the right questions saves time and money, it leads you to the target thermoplastic materials faster. Have a more complex need? Some common and valuable questions in helping TPE formulations developer to find the perfect materials match. These questions include :

    • Define the application.

    • Processing method, injection molding, extrusion molding, blowing or others.

    • Process multi-component, injection with overmolding or co-extrusion ?
      The most critical factor is making sure the materials between TPE to overmolding materials are compatible, both materials must bond together tightly for maintaining a strong finished component with a long service life. Have you ever suffered obstacles on debonding between TPE to engineering plastics, such as POM or Nylon+GF etc..

    • Identify the physical properties, such as hardness, compression set or MI etc..

    • What are the existing materials, any obstacles ? have you ever suffered oil migration trouble from TPE materials ?

    • Is this part used indoor or outdoor? will it exposes to outdoor for long-term service?

    • Wear Resistant & Low Noise Materials.

    • Require Chemical resistant property.

    • Flame protection System.

    • What Color for the TPE materials, transparent, translucent or nature color.

    • Require color matching.

    • Comply to regulations associated, such as FDA, USP Class VI, RoHS and REACH etc..

    • What is the thickness of the walls to the part design?

    • Determine gate location, which will affect the injecting pressure and the balance of the retaining pressure. Keep the gate away from the stress or weak position.

  • How Ever Polymer can help ?

    When you need TPE / TPR materials, you can trust Ever Polymer to deliver customized solutions for each unique demand.
    Ready to start your next projects with Ever Polymer ? Contact us today !