TPE physical parameter indicators

In today's material science field, TPE has become a favorite in many industries with its unique combination of properties, such as good elasticity, processability and wide temperature adaptability. However, to fully utilize the advantages of TPE, it is necessary to have a deep understanding of its physical parameters. These parameters not only determine the basic properties of TPE materials, but also directly affect their performance in specific applications. Next, let us explore the mystery of TPE physical parameter indicators.

TPE physical parameter indicators are as follows:

1. Hardness:

Hardness range: The hardness of TPE is usually expressed in Shore Hardness, and the common hardness range is 10~95A (Shore A). TPE with a hardness higher than 95A is usually expressed in Shore Hardness D (Shore D), and its hardness range is about 40~60D.

Conversion relationship: There is a certain conversion relationship between Shore Hardness A and D, but it is usually recommended to use the corresponding hardness meter to directly measure to obtain accurate values.

2. Specific gravity (density): Specific gravity range: The specific gravity (density) of TPE is roughly between 0.84 and 1.3 g/cm

3. TPE materials with different formulations may have different specific gravity. Influencing factors: Specific gravity is closely related to factors such as the cost, processing performance, and application effect of TPE materials. TPE materials with a larger specific gravity usually mean that their raw material costs are higher, but they may also have better physical properties and processing stability. 

4. Tensile strength: Tensile strength range: The tensile strength of TPE is roughly between 3 and 10 MPa. Tensile strength is an important indicator to measure the tensile resistance of TPE materials, and is particularly important for application scenarios that need to withstand large tensile forces. 

5. Elongation at break: Elongation at break range: The elongation at break of TPE is usually between 200 and 1500%. Elongation at break reflects the extent to which TPE materials can be stretched before breaking, and is an important indicator for evaluating their elasticity and toughness. 

6. Shrinkage rate: Shrinkage rate range: The shrinkage rate of TPE is roughly between 1.5 and 3%. The size of the shrinkage rate is related to the formula of the TPE material, molding conditions and other factors, which is particularly important for application scenarios that require precise size control. 

7. Melt index: Melt index range: The melt index of TPE is usually between 1 and 20g/10min (2.16kg, 190℃). The melt index is an important indicator to measure the processing fluidity of TPE materials, which is of great significance for molding processes such as injection molding and extrusion. In addition, TPE materials also have some other important physical properties, such as tear strength, compression deformation, resilience, transparency, temperature resistance, chemical resistance, etc. These parameters jointly determine the performance characteristics and application range of TPE materials. It should be noted that the physical properties of TPE materials with different formulas may vary greatly. 

Therefore, when selecting TPE materials, the most suitable materials should be selected based on the specific application scenarios and needs and comprehensive consideration of various physical parameters. At the same time, in order to ensure the stable and reliable performance of TPE materials, it is recommended to accurately evaluate the physical properties of the selected materials through professional testing and verification methods.