Starch ether is a modified starch obtained by chemically modifying natural starch. It has many unique properties, which makes it widely used in various fields. Starch ether has important uses in the construction, food, pharmaceutical, cosmetic, paper and textile industries.

1. Construction industry
In the construction industry, starch ether is mainly used in dry-mixed mortar and putty powder. It can improve the construction performance of mortar, increase its water retention and adhesion, and prevent the generation of cracks. Starch ether can improve the workability and construction of mortar, making it easier to operate during construction. In addition, starch ether can also extend the open time of mortar, giving workers more time for adjustment and finishing.

2. Food industry
In the food industry, starch ether is widely used in food processing and manufacturing. It can be used as a thickener, stabilizer and emulsifier in the formulation of various foods. For example, in dairy products, sauces, soups and baked goods, starch ether can improve the texture and taste of food and increase the viscosity and stability of the product. At the same time, starch ethers also have good freeze-thaw stability, which can prevent food from changing in texture during freezing and thawing.

3. Pharmaceutical industry
Starch ethers are also widely used in the pharmaceutical industry. It can be used as an excipient, adhesive and disintegrant for drugs. In tablets and capsules, starch ethers can improve the fluidity and compressibility of drugs, increase the hardness and disintegration rate of tablets, and thus improve the release and absorption effect of drugs. In addition, starch ethers can also be used to prepare controlled-release preparations of drugs to help achieve sustained and sustained release of drugs.

4. Cosmetics industry
In the cosmetics industry, starch ethers are used as thickeners, suspending agents and emulsifiers, and are widely used in various skin care products and cosmetics. For example, in lotions, creams, shampoos and shower gels, starch ethers can increase the consistency and stability of products and improve the spreadability and touch of products. At the same time, starch ethers also have moisturizing and lubricating effects, which can increase the softness and smoothness of the skin.

5. Papermaking industry
In the papermaking industry, starch ethers are used as retention agents and surface sizing agents for pulp. It can improve the fluidity of pulp and the dispersion of fibers, increase the strength and surface smoothness of paper. Starch ether can also improve the folding resistance and water resistance of paper, making the paper more durable and stable during use. In addition, starch ether can also be used as a coating agent for coated paper, increase the uniformity and adhesion of the coating layer, and improve the printing performance and appearance quality of coated paper.

6. Textile industry
In the textile industry, starch ether is used as a textile slurry and finishing agent. It can improve the strength and abrasion resistance of yarn, increase the feel and gloss of fabrics. Starch ether can also be used as a thickener in the dyeing and printing process, increase the viscosity and stability of dyes and printing pastes, and improve the uniformity and clarity of dyeing and printing. In addition, starch ether can also be used as a waterproofing agent and antifouling agent for textiles, increasing the waterproofness and antifouling properties of fabrics.

7. Other uses
In addition to the above main application areas, starch ether has also been widely used in many other fields. For example, in oil field drilling, starch ether can be used as a thickener and filtration reducer for drilling fluid to increase the viscosity and stability of drilling fluid. In coatings and paints, starch ethers can be used as thickeners and rheology modifiers to increase the coating and leveling properties of coatings and paints. In addition, starch ethers can also be used to produce biodegradable plastics and agricultural films, which have good environmental performance.

Starch ether is a multifunctional material with broad application prospects. It obtains many unique properties by chemically modifying natural starch, making it widely used in various industries. With the continuous advancement of science and technology and the continuous growth of market demand, the application field and market prospects of starch ethers will become more and more broad.