Product introduction:
Pre gelatinized starch is a kind of physically modified starch, also known as α- Starch; After the starch gelatinization is in a dispersed state, after rapid dehydration and drying, the starch molecules have no time to rearrange to obtain a kind of porous starch particles without obvious crystallization. Pre gelatinized starch is used in many industrial sectors because of its porous, hydrogen bond breaking structure, cold water solubility, good cold water stability and strong water retention.
Ingredient introduction:
Pregelatinized starch is liquefied to produce dextrin. The units constituting starch and dextrin are glucose, but starch contains more glucose units than dextrin, and starch gelatinization is actually the incomplete hydrolysis of starch (the product of complete hydrolysis of starch is glucose, maltose is also the endless hydrolysis product of starch, but maltose only contains two glucose units, which is less than the glucose units contained in dextrin). Starch shows blue when encountering iodine, dextrin shows red when encountering iodine, maltose and glucose do not show color when encountering iodine.
Application fields:
High viscosity pre gelatinized starch is used in building materials, feed, casting, coatings, oil drilling, corrugated boxes and other industries. When hydroxypropyl methyl cellulose ether is used together with pre gelatinized starch, it can play a thickening role. Change the internal structure and have good crack resistance. Change the working performance and significantly reduce the amount of hydroxypropyl methylcellulose. High viscosity pre gelatinized starch is used in building materials industry and can be used as retarder, water retaining agent, thickener and binder. It plays an important role in ordinary dry mixed mortar, exterior wall external insulation mortar, self leveling mortar, dry powder plastering glue, ceramic tile dry powder mortar, high-performance building putty, crack resistant interior and exterior wall putty, waterproof dry mixed mortar, gypsum plastering, scraping whitening agent, joint filling, etc.