FAQs

Q1: “What should I do if the performance of PTFE in the process is not enough”

A1: “You can consider filling polytetrafluoroethylene, and filling polytetrafluoroethylene with some reinforcing materials such as carbon fiber, copper powder, polyphenyl ester, etc., to improve the comprehensive performance and life of PTFE”

Q2: “Is there anything that can replace PTFE”

A2: “For example, if it is a material with comprehensive properties such as corrosion resistance and high temperature resistance, like PTFE, but not as high temperature resistance as PTFE, PTFE is referred to as F46, but the price is relatively high.”

Ps: PTFE is not injection moldable, because its viscosity is very high at high temperature and its fluidity is very poor

Q3: “How long is the life of the PTFE sheet?”

A3: “According to the new PTFE board standard QB/T5257-2018, it is clearly stipulated that the warranty period of PTFE board is 10 years. In fact, how long the PTFE board is placed, it will not age and corrode. Normally The bottom quality is very stable, excellent aging resistance, long-term exposure to the atmosphere, the surface and performance are unchanged. However, PTFE sheets are easy to expand and contract with heat. This is also well understood. Plastic King Plastic King, As long as it is plastic, some properties are still affixed. Its expansion coefficient is 10 times that of steel. Under long-term continuous load, PTFE will creep. Let me give you the term “cold flow”. The situation is that when applied to gaskets if the bolts are tightened very tightly, they are prone to deformation, which requires adding some “fillers” as mentioned above.

Q4: “Can you give me a closer look at PFA and PTFE?”

A4: “PFA is soluble polytetrafluoroethylene. The material is sintered at high temperature and has fluidity. It is mainly used for injection molding chemical parts. The use temperature is generally within 220; PTFE high temperature sintering is not fluid, and it is not produced by the injection molding process. It is produced by molding or pressing techniques, mainly used for chemical or mechanical parts. The operating temperature is low -180 and high +260 degrees. Modified PTFE (after filling) can be used at a temperature close to 280 degrees. ”

Q5: “Are there any other shortcomings of Plastic King PTFE”

A5: “I don’t know if it’s not a good wear resistance. In the industry, some products have been made by using its low friction coefficient, but the mechanical strength is poor and the rigidity is not enough. Also, the surface energy is poor, although Used in fluids, glues, etc., but it performs poorly in industry”