The hardness of TPU (thermoplastic polyurethane elastomer) is one of its important physical properties, which determines the material’s ability to resist deformation, scratches, and scratches. Hardness is usually measured using a Shore hardness tester, which is divided into two different types: Shore A and Shore D, used to measure TPU materials with different hardness ranges.
According to the search results, the hardness range of TPU can range from Shore 60A to Shore 80D, which allows TPU to span the hardness range of rubber and plastic and maintain high elasticity throughout the entire hardness range. The adjustment of hardness can be achieved by changing the proportion of soft and hard segments in the TPU molecular chain. The change in hardness can affect other properties of TPU, such as increasing the hardness of TPU leading to an increase in tensile modulus and tear strength, an increase in rigidity and compressive stress, a decrease in elongation, an increase in density and dynamic heat generation, and an increase in environmental resistance.
In practical applications, the hardness selection of TPU will be determined based on specific application requirements. For example, softer TPU (measured by Shore A hardness tester) is suitable for products that require a soft touch and high elongation, while harder TPU (measured by Shore D hardness tester) is suitable for products that require high load-bearing capacity and good wear resistance.
In addition, different manufacturers may have specific hardness standards and product specifications, which are usually detailed in product technical manuals. For details, please refer to the official website of Yantai Linghua New Materials Co., Ltd.
When selecting TPU materials, in addition to hardness, other physical properties, processing methods, environmental adaptability, and cost factors need to be considered to ensure that the selected materials can meet the performance requirements of specific applications.
Post time: Apr-28-2024