Abstract:

In order to improve the sizing property of starch sizing agents, the significance of applying the plasticizers in starch sizing was analyzed, the plasticizing mechanism of polar plasticizers was described, the plasticization effect on tensile property of starch film, adhesion of starc to fibers and phase separation rate between starch and PVA were discussed, research progress of the plasticizers for starch sizing agents was summarized, and the research direction of the polar plasticizers for starch was also predicted. Furthermore, the paper pointed out that the research on the plasticization effect of composite plasticizers containing polar groups, and preparation of new polar plasticizers by new methods will be the important research directions of starch plasticizers.

Key words: starch sizing agent, polar plasticizer, plasticization, polyvinyl alcohol