Hydroxypropyl starch ether (HPS) is a fine white powder derived from natural plant materials through a modified, highly etherified reaction. Unlike conventional starch or modified starch, HPS is spray-dried without plasticizers, making it an eco-friendly and high-performance additive. This article explores the features, technical specifications, applications, and industry impact of hydroxypropyl starch ether, while highlighting its role in construction, textiles, and other critical sectors.
Hydroxypropyl starch ether is a non-ionic, water-soluble polymer designed to enhance the properties of various materials. Its unique chemical structure allows it to act as a thickener, stabilizer, and viscosity modifier. The product is particularly valued for its rapid thickening ability, medium viscosity, and excellent water retention, making it a preferred choice for industries requiring precision and efficiency.
The following table outlines the product specifications of Hydroxypropyl Starch Ether (Model-301):
| Item | Model-301 |
|---|---|
| Appearance | White to whitish powder |
| Hydroxypropyl Content | 13.0-19.0% |
| Solubility | Soluble in cold water |
| Fineness | 95% (80M) |
| Viscosity | 50-3000 mPa·s |
| Loss on Drying | ≤10% |
| Moisture | ≤10% |
| Recommended Dosage | 0.3-0.5% (by weight) |
| Applications | Gypsum-based and cement-based mortar and wall putty |
Hydroxypropyl starch ether's versatility makes it indispensable across multiple sectors. Below are its primary applications:
Hydroxypropyl starch ether is widely used in cement-based, gypsum-based, and lime-calcium-based products. It improves the workability, sag resistance, and durability of wall putty, mortars, and adhesives. For instance, when combined with methyl cellulose ether, it enhances the internal structure and crack resistance of materials. Learn more about its role in construction.

In textiles, hydroxypropyl starch ether acts as a warp size to improve wear resistance and weaving efficiency. Its high substitution degree also makes it an effective thickener for dyeing and printing processes. This application is particularly beneficial for high-performance fabrics and industrial textiles.

The product functions as a binder, suspending agent, and thickener in cosmetics, coatings, and daily chemical products. Its ability to stabilize emulsions and suspensions ensures long-term product stability and improved user experience. For example, it is used in shampoos, lotions, and hair conditioners to enhance texture and consistency.
In oil drilling, hydroxypropyl starch ether helps stabilize boreholes and improve drilling conditions by reducing sloughing and flocculating cuttings. This application is critical for deep-sea and high-pressure drilling operations, where material stability is paramount.
Pengze Technology (Shijiazhuang) Co., Ltd. is a leading manufacturer of starch-based additives and specialty chemicals. With a focus on innovation and quality, the company supplies hydroxypropyl starch ether to global markets. Their commitment to sustainable practices and advanced R&D ensures products meet the highest industry standards.

For more information about the company, visit their official website.
Hydroxypropyl starch ether offers several advantages over traditional additives:
The development and application of hydroxypropyl starch ether align with global standards for material science and chemical engineering. Organizations like the National Institute of Standards and Technology (NIST) play a pivotal role in establishing benchmarks for chemical performance and safety. While direct links to NIST resources may be limited, the principles of precision and innovation upheld by NIST are reflected in the design and testing of HPS products.
Learn more about NIST's role in material standards.
Hydroxypropyl starch ether is a multifunctional additive with transformative potential across industries. Its ability to enhance workability, stability, and efficiency makes it an essential component in modern manufacturing. As industries continue to prioritize sustainability and performance, HPS stands out as a reliable solution. For detailed product information, visit the product page or contact Pengze Technology (Shijiazhuang) Co., Ltd. directly.
1. National Institute of Standards and Technology (NIST) - For standards and research in material science and chemical engineering.
2. Pengze Technology (Shijiazhuang) Co., Ltd. - Manufacturer of hydroxypropyl starch ether and related products.
