Optimization Design Exploration of Tetrafluoroethylene Monomer Polymerization Process
Polytetrafluoroethylene(PTFE)has been widely used in many fields due to its excellent comprehensive performance.However,the traditional tetrafluoroethylene(TFE)monomer polymerization process still faces problems such as low initiation efficiency,difficult temperature control,wide molecular weight distribution of the product,and unsatisfactory conversion rate.This article proposes a series of optimization strategies for TFE monomer polymerization process from the aspects of initiator selection,precise control of polymerization temperature,chain transfer agent design,and process enhancement,in response to the above-mentioned difficulties.The experimental results showed that the optimized microchannel polymerization process increased the number average molecular weight of PTFE by more than twice and the distribution was more uniform,the crystallinity increased by more than 10%,the monomer conversion rate and initiation efficiency reached 96%and 25%,respectively,providing a new idea for the green and efficient preparation of PTFE.
NETL
NSTL
万方数据
