JINZHOU YICHENG CELLULOSE CO.,LTD.
HPMC(Hydroxypropyl Methyl Cellulose) is one of the main dispersing agents of PVC(polyvinyl chloride) industry. When polythene is in suspension and polymerization, HPMC can reduce the interfacial tension between VCM and water, help VCM disperse in aqueous medium evenly and stably. It prevents VCM solution from mixing in the initial stage of polymerization, and It can also prevent polymer particles from coalescing in the middle and later stage of polymerization. In a word, it plays a dual role of dispersion and stability in the system of suspension and polymerization.