Thermoplastic Copolyester (TPE-E)
TPE-E, also known as thermoplastic rubber in some contexts, is a class of copolymers or a physical polymer blend composed of materials with both thermoplastic and elastomeric properties. Thermoplastic Copolyester (COPE or TPE-E) is a synthetic rubber containing hard polyester crystals dispersed in a soft and flexible matrix. Thanks to this two-phase structure, copolyester elastomers are materials that have the flexibility of a rubber but can also be molded and remolded like a plastic.
Compared to other elastomers, polyester-based materials offer the most consistent performance across all operating temperature ranges because their properties show very little change at low and extremely high temperatures.
Key properties:
Excellent flexural fatigue resistance
High upper limit temperature resistance
High impact resistance
High abrasion and wear resistance
Good resistance to climatic conditions and chemicals
High load-bearing capacity
Excellent mold adhesion (ABS/PBT/PC/metals)
Excellent strength over a wide temperature range
Excellent dynamic properties (such as creep and fatigue resistance)
Excellent resistance to chemicals, liquid oils, and greases
Easy colorability
Good electrical insulation properties
Low moisture absorption and high dimensional stability
TPE-E exhibits excellent processability compared to other TPE types in various processes such as injection molding, extrusion, or blow molding. Water resistance and very high water vapor permeability are unique properties of TPE-E films.
Where is TPE-E Used?
TPE-E has a wide range of applications in the automotive and home appliance industries.
In the automotive industry, it is used in all engine cable protection systems, cable systems operating under high temperatures, and automotive pipe systems.
TPE is used in motorized slideways where hardness and wear resistance are priorities.
They are also widely used in catheters, where nylon block copolymers provide optimal softness for patients.
TPE has also begun to be used as electrical cable sheathing/internal insulation material. TPE is also used in some headphone cables.
It is also found in sports equipment.
