Hydroxypropyl starch is a kind of white or light white powder without special smell. Insoluble in cold water, it can be gelatinized into a thick and transparent colloid under heating conditions, with good stability. Hydroxypropyl starch is the most widely used modified starch in food industry. The introduction of a certain amount of hydroxypropyl group to starch molecules will effectively improve the properties of starch paste. On the one hand, hydroxypropyl can produce steric hindrance effect to prevent the aggregation and crystallization of starch chain; on the other hand, the hydrophilic property of hydroxypropyl can weaken the internal hydrogen bond strength of starch particle structure, making it easy to expand and gelatinize. The starch paste obtained has high transparency, strong fluidity, weak retrogradation, high stability and good freeze-thaw stability, which is especially suitable for frozen food and convenient food Use for thickener.
1) In the food industry, hydroxypropyl starch can be used as thickener, suspension agent and adhesive.
2) Hydroxypropyl starch papermaking industry: hydroxypropyl starch is used for internal paper sizing, hydroxypropyl starch is used for surface sizing, hydroxypropyl starch makes printing ink bright, hydroxypropyl starch makes uniform, hydroxypropyl starch makes film smooth, hydroxypropyl starch reduces ink consumption, hydroxypropyl starch powder and has certain hair pulling ability.
3) Hydroxypropyl starch textile industry: hydroxypropyl starch can be used as warp sizing, hydroxypropyl starch can improve the wear resistance of weaving, hydroxypropyl starch and weaving efficiency, and hydroxypropyl starch with high degree of substitution can be used as printing paste.
4) Hydroxypropyl starch pharmaceutical industry: hydroxypropyl starch can be used as disintegrating agent of tablets, and hydroxypropyl starch can also be used as plasma increaser.
5) Hydroxypropyl starch can stabilize well wall, improve well conditions, prevent collapse and flocculate drilling cuttings.
6) Hydroxypropyl starch daily chemical industry: hydroxypropyl starch in daily chemical industry and hydroxypropyl starch in cosmetics or coatings with adhesives, suspensions and thickeners.
7) hydroxypropyl starch, in addition, hydroxypropyl starch can also be used as binder for building materials, hydroxypropyl starch coating or gel of organic liquid and hydroxypropyl starch.
8) Food industry: it can be used as a binder, thickener, suspending agent, increasing stability.
9) In building materials:
● all kinds of internal and external wall putty (cement, gypsum, gray calcium base).
● all kinds of facing mortar plastering mortar.
All kinds of gypsum, ceramics and porcelain products are used as molding adhesives, with low ash content and good viscosity.
It has good thickening and stability, and plays the role of suspension, emulsification, etc. in aqueous solution.