Af hverju nota þéttihringirnir sílikon gúmmívörur í stað TPE?
With the continuous improvement of scientific and technological level, more and more electronic products have begun to support waterproof function in recent years, which puts forward higher requirements for the sealing performance of products. I don't know if you have noticed a strange phenomenon. Rubber and TPE materials are both elastomers, but TPE materials are rarely used to make sealing rings, and silicone rubber materials are mostly used? Today, Yongyong Silicone Rubber Products will tell you the mystery of it!
One of the very important reasons for this is that silicone rubber materials have good resilience properties, and some materials can still maintain good physical properties at high temperatures of 200-280 degrees Celsius. In addition, rubber materials such as EPDM rubber materials have good air tightness and anti-aging properties, and have been widely used in the field of automotive sealing. Secondly, different types of rubber materials can be selected according to the specific use environment of the product, such as oil-resistant (gasoline, hydraulic oil, etc.) NBR materials, high-temperature-resistant fluorine rubber materials, etc. These advantages are incomparable with plastic materials such as TPE/TPU.
Here I would like to introduce a customer case of our company. Shenzhen Laier Technology Co., Ltd. has a newly developed fuel cell project. At the beginning, the ABS plus TPE secondary molding method was used, and the plastic shell was wrapped. A layer of TPE material is used to seal the fuel, but there is a leakage phenomenon during the final assembly test. After multiple arguments, the customer found that it was likely to be a material problem. Finally found us, after learning about the problems encountered by customers, we designed and adopted EPDM rubber rubber sealing ring products for customers, and the experiment was successful, which was well received by customers.