Some questions about VCM self-aggregation?
Thread Content
1. Why does VCM produce self-aggregation? 2. What is the state of the self-polymer in the country after self-polymerization in the storage tank? 3. What if it is determined that there is self-aggregation in the tank? 4. What does an autopolymer look like (pictures are best)? 5. What to do if there is self-agglomeration in the tank? 6. What is the difference between VCM transported by tanker and VCM produced by its own ethylene method? Which one is more likely to self-aggregate?
You really have a lot of questions, but they are a bit sloppy and overly repetitive! ! The problem of self-aggregation is due to the instability of VCM itself. The covalent bonds between its molecules can easily break and attract each other, causing the molecular chain to lengthen to form a polymer! The morphology of autopolymers at home and abroad is basically the same, with granular crystals and a certain viscosity and mechanical strength. Self-gathering often results in clogged pipes. The device can only be opened for manual processing. There is no difference between the VCM transported by tank trucks and the VCM produced by our own ethylene method. There may be slight differences in the purity and impurities of some monomers. But at the same time, it is possible for self-aggregation under certain external conditions! I don’t know if you are satisfied with my answer. I’m sorry for offending you! Asking more precise questions next time will be more conducive to everyone's discussion!
Self-polymerization of VCM is inevitable, especially during high temperature seasons in summer or during long-term storage. Hydroquinone is generally used as a polymerization inhibitor, and the content is controlled below 5PPM.
What I mean is that the calcium carbide method and the ethylene method will have higher purity and better control in terms of technology: lol