Wholesale HPS Hydroxypropyl Starch Ether

Features

Hydroxypropyl Starch Ether (HPS) powder is a white or off-white fine particle made from modified natural starch via etherification reaction with propylene oxide, with uniform particle size and good fluidity . Hydroxypropyl Starch Ether is a white or nearly white, odorless, tasteless, and non-toxic powdered starch derivative .

Hydroxypropyl Starch Ether powder exhibits excellent fluidity, uniform particle size distribution, and moderate packing density (typically 400-500 kg/m³) . Hydroxypropyl Starch Ether itself is easily soluble in cold water to form a transparent viscous solution, but it is insoluble in organic solvents and can exhibit enhanced dissolution rate under heating conditions (60-80°C) without “fish-eye” formation when premixed with dry ingredients .

Market Prospects

The application of Hydroxypropyl Starch Ether (HPS) in various industries such as building materials, food processing, daily chemicals, and pharmaceuticals continues to deepen and expand, especially in the fields of dry-mixed mortar, functional food, water-based coatings, and personal care products, where demand continues to grow. With the application of innovative technologies such as modified graft copolymerization and precision processing, the water retention, thickening, and compatibility of Hydroxypropyl Starch Ether (HPS) will be further improved, and its application fields will become more extensive, bringing new growth points to the market. Hydroxypropyl Starch Ether (HPS), as a bio-based and fully biodegradable starch derivative, meets the requirements of global environmental protection and sustainable development, and the market demand will continue to grow.

Hydroxypropyl Starch Eth Manufacturing Process

As a professional manufacturer of hydroxypropyl starch ether (HPS), we select high-quality starch raw materials from natural grains (such as corn, potato, and tapioca) which are carefully cleaned, crushed and pre-treated to remove impurities like protein, fat and fiber, ensuring the purity and reactivity of the raw materials. The adoption of advanced etherification reaction technology, with precise control of reaction temperature, pressure and catalyst dosage to modify starch molecules and introduce hydroxypropyl groups, is the core to forming high-quality hydroxypropyl starch ether. The reacted mixture is neutralized, washed and filtered repeatedly to thoroughly remove residual catalysts, salts and other by-products, ensuring the purity and stability of hydroxypropyl starch ether.

By applying efficient drying technologies and accurate control of temperature and humidity, hydroxypropyl starch ether is dried to a constant moisture state, followed by crushing and grading through precise sieving equipment to obtain uniform and fine hydroxypropyl starch ether powder with consistent particle size distribution. Comprehensive quality testing is conducted on the finished products, including key indicators such as substitution degree, viscosity, moisture content, purity and fineness, to ensure that each batch of products meets strict industry standards and customer requirements. Subsequently, packaging materials with excellent sealing and moisture-proof properties are adopted to effectively isolate air and moisture, ensuring the safety, stability and long-term storage of the product during transportation and storage.

Use Precautions

Usually, the recommended dosage for adults to use hydroxypropyl starch ether (HPS) at a time is 5-20 grams, and the specific dosage needs to be adjusted according to the product’s application scenario and personal physical condition. In the food industry, the addition amount of hydroxypropyl starch ether (HPS) shall comply with the relevant national and industrial standards. For example, the maximum usage for dairy products such as yogurt and custard is 30g/kg, for pastry and baked goods it is 25g/kg, and for sauce and condiment products it is 45g/kg.

Due to the potential impact of hydroxypropyl starch ether (HPS) on fetal or infant health through the placental barrier or breast milk, pregnant women and infants should avoid using it or use it with extreme caution under the professional guidance of a doctor. Hydroxypropyl starch ether (HPS) is mainly decomposed and metabolized in the digestive tract and excreted through the intestinal tract and kidneys. Its use may increase the metabolic burden in individuals with impaired digestive and renal functions, and thus should be used with caution. People who are allergic to hydroxypropyl starch ether (HPS) or any starch-derived products should avoid using it to prevent the occurrence of allergic reactions such as skin rashes and gastrointestinal discomfort.

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Characteristics

Good Stability ：Hydroxypropyl starch ether (HPS) has stable ether linkages in its molecular chain, resistant to temperature, pH and shearing force, and maintains stable physicochemical properties in various systems.
Good Flowability：HPS particles are fine and uniformly sized with low intermolecular adhesion, non-caking, and easy to mix with other raw materials for smooth production.
Excellent Water：Retention HPS contains hydrophilic hydroxypropyl groups, forming a hydrogen bond network with water molecules for strong water absorption and effective water locking in the system.
Good Thickening：Property HPS molecular chains extend well in water to form a 3D network, exerting efficient thickening effects at low addition amounts in aqueous systems.
Good Film-forming：Property HPS molecular chains entangle in water to form a colloidal network, and form a transparent, flexible and tough uniform film after water evaporation.
Good Compatibility：HPS is a non-ionic hydrophilic polymer, compatible with most additives and common food/industrial raw materials, blending well into stable composite systems.

Main Function

Pharmaceutical Industry
With excellent water solubility, film-forming ability and bonding strength, HPS is a commonly used excipient for tablets and capsules. It acts as a binder and disintegrant, and can also be used as a coating and sustained-release material. It precisely controls drug release, improves bioavailability, features non-toxicity and good biocompatibility, and is suitable for various pharmaceutical formulations.

Food Industry
As a natural and safe food additive, HPS serves as a thickener and stabilizer in sauces, dairy products, baked goods, etc. It thickens mixtures to prevent delamination, locks in moisture to maintain shape and extends food shelf life. It can also replace fat to reduce calories, improve food processability, and meet the demand for healthy food.

Cosmetics Industry
Boasting outstanding thickening, moisturizing and film-forming properties, HPS is widely used in shampoos, creams, facial masks, etc. It adjusts product consistency, stabilizes formulations and blends oil and water ingredients evenly. It forms a breathable protective film on the skin to lock in moisture for long-lasting hydration, and its mild nature is suitable for all skin types.

Building Materials Industry
As a key additive for building materials, HPS has excellent water retention, bonding performance and workability. It is applied in dry-mix mortar, tile adhesive, wall putty, etc., enhancing water retention to prevent cracking, and boosting bonding and mechanical strength of materials. It optimizes construction smoothness, and can be used to make eco-friendly coatings, improving the weather resistance and aesthetics of building surfaces and enhancing the durability of building structures.

Common Name	Hydroxypropyl Strach Ether
Abbreviation	HPS
Standards Compliant	Enterprise Standard
Chemical Formula	R=C31H56O22
Appearance	White fine powder
PH	9-11(3.75%solution)
Solubility	Soluble in cold water
Fineness	Less than 350 microns
Viscosity	400-1200 mpas (5% solution)
Compatibility with other materials	Good compatibility with other building materials additives
Moisture	Less than 5%

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CELLULOSE MANUFACTURERS & SUPPLIERS

NQ is an influential cellulose ether manufacturer in China. We are committed to the research, development, production and sales of hpmc, hemc and hec. High-quality products and first-class services make us do better!

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✅️ Cellulose ether annual production capacity of 50,000, to provide a stable supply, fast delivery;

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