What is the difference between the properties of TPE and TPV raw materials
Source：德创化工Time：2020-03-20Hits：2325
In our daily production and life, there is an increasing demand for TPE and TPV materials, but do customers really understand these two materials and do you understand the subtle differences? What are the specific differences between TPE and TPV materials? Dechuang Chemical will give you a detailed introduction below!
TPV material is called thermoplastic vulcanized rubber. It is mainly made of EPDM+PP blended elastomer and dynamically vulcanized. It has the advantages of good elasticity and strong weatherability and aging resistance. It is a member of thermoplastic elastomer family.
TPE is a general term for thermoplastic elastomer, which is made by blending SEBS/SBS+PP+ naphthenic oil+calcium carbonate+additives. Due to its excellent performance and good adjustability, TPE is widely used in various industries. It is also called TPR in different regions and industries.
Performance differences between TPE and TPV:
How can we quickly distinguish TPE from TPV? First of all, look at the appearance. Transparent is TPE,TPV is not transparent. Secondly, look at gloss, TPE has better gloss, TPV has foggy surface and has little gloss. It can also be distinguished by burning. TPE burns with aromatic flavor while TPV burns with petroleum flavor.
TPV is usually white or slightly yellow particles, which can be matched with black and darker colors. TPE has high transparency, translucency, full transparency and white. Toner or color masterbatch can also be added to mix various colors.
TPV hardness Shore 50~95A. TPE hardness is more extensive 0~100A, and lower hardness can be optimized through formula. The testing method is measured by Shore C, which is expressed by 0000. The more the number of 0, the softer the material.
The specific gravity of TPV material is 0.9~1.2. The specific gravity of TPE material is 0.84-1.7, and filler is added to increase the specific gravity through formula optimization. The application fields with high specific gravity include eraser and toughening modification fields.
Tensile strength of TPE products: 3-20 MPa. TPV products 2~6MPa. The elongation at break of TPE is 100-1500%, and that of TPV is 200-450%. TPE materials have poor weatherability compared with TPV materials. The use temperature of TPE products is-40-90 degrees Celsius, and the use temperature of TPV products is-50-150 degrees Celsius.
In terms of chemical resistance, TPE materials are not resistant to engine oil, gasoline, toluene, TPV materials can be resistant to engine oil, gasoline, toluene, thinner, alcohol, etc. The degree of recovery of compression and bending deformation TPE material is general, TPV has good performance, but TPE's resilience is better than TPV material.
We will briefly introduce the performance differences between TPE and TPV raw materials. If you want to know more about TPE and TPV raw materials, you can call us at any time. We will serve you with professional knowledge! Dongguan Dechuang Chemical Co., Ltd. is looking forward to hearing from you!
