低聚合度多聚甲醛(PF),是工业上最重要的线型甲醛聚合物,具有纯度高、水溶性好、解聚完全、产品疏松、颗粒均匀等特点,是工业甲醛理想的替代品。以低聚合度多聚甲醛代替工业甲醛,不仅可以大大缩短反应周期,而且可以提高收率,节约甲醛用量7%-17%。在聚乙烯醇合成纤维生产过程中使用低 The low degree of polymerization paraformaldehyde (PF) is the most important linear oxymethylene polymer in the industry. It has the characteristics of high purity, good water solubility, complete depolymerization, loose product, uniform particles, etc. It is an ideal substitute for industrial formaldehyde. Replacing industrial formaldehyde with polyformaldehyde with a low degree of polymerization can not only greatly shorten the reaction cycle, but also increase the yield and save 7% to 17% of formaldehyde. Low use in the production of PVA