Hydroxypropyl starch ether (HPS) is a fine white powder derived from natural plant materials through a modified, highly etherified reaction, followed by spray drying without plasticizers. This innovative product stands apart from conventional starch or modified starch due to its unique chemical structure and functional properties. As a multifunctional additive, HPS plays a critical role in various industries, including construction, textiles, cosmetics, and oil drilling. This article explores its features, technical specifications, applications, and the company behind this advanced material—Pengze Technology (Shijiazhuang) Co., Ltd.
Hydroxypropyl starch ether is a white, fine powder obtained from natural plant sources. It undergoes a high-degree etherification process, making it compatible with other building admixtures such as cement-based and lime-calcium-based putty products and mortars. Unlike traditional starch, HPS does not contain plasticizers, ensuring a cleaner, more efficient formulation. Its ability to improve workability, reduce the need for cellulose ether, and enhance crack resistance makes it a preferred choice for modern construction materials.
One of the standout features of HPS is its rapid thickening ability, medium viscosity, and moderate water retention. These properties allow for smoother application and improved structural integrity in materials like wall putty and mortars. Additionally, HPS enhances the anti-sag performance of formulations, making it ideal for tile adhesives and decorative coatings. Its recommended dosage of 0.3–0.5% ensures cost-effectiveness while delivering high performance.
| Item | Model-301 |
|---|---|
| Appearance | White to whitish powder |
| Hydroxypropyl | 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% |
| Applications | Gypsum-based and cement-based mortar and wall putty |
Hydroxypropyl starch ether is widely used in the construction industry as an additive for wall putty, mortars, and plasters. Its compatibility with cement-based, gypsum-based, and lime-calcium-based materials ensures improved workability and structural stability. For instance, in tile adhesives, HPS enhances sag resistance and reduces the risk of slippage, while in wall putty, it improves the material’s smoothness and durability.

In the textile sector, HPS serves as a warp sizing agent, increasing the wear resistance and weaving efficiency of fabrics. Its high substitution degree makes it an effective thickener for dyeing and finishing processes. By improving the viscosity of textile solutions, HPS ensures uniform application and enhances the quality of finished products.

Hydroxypropyl starch ether acts as a binder, suspending agent, and thickener in daily chemical products and cosmetics. Its ability to stabilize aqueous solutions and prevent sedimentation makes it ideal for shampoos, lotions, and skincare formulations. Additionally, HPS contributes to the texture and consistency of products, enhancing user experience.

In oil drilling, HPS helps stabilize boreholes and improve drilling conditions. It prevents sloughing (the collapse of borehole walls) and aids in the flocculation of drilling cuttings, ensuring efficient operations. Its water retention properties also contribute to the stability of drilling fluids under varying conditions.

Pengze Technology (Shijiazhuang) Co., Ltd. is a leading manufacturer of high-quality starch derivatives, including hydroxypropyl starch ether. With a focus on innovation and sustainability, the company provides solutions tailored to the needs of diverse industries. Their commitment to research and development ensures that their products meet stringent quality standards and deliver exceptional performance.
For more information about Pengze Technology, visit their official website: Pengze Technology (Shijiazhuang) Co., Ltd.
The performance and reliability of hydroxypropyl starch ether are supported by rigorous testing and adherence to industry standards. According to the National Institute of Standards and Technology (NIST), starch-based materials are critical in ensuring the consistency and quality of industrial products. NIST’s research on polymer-based additives highlights the importance of materials like HPS in improving the efficiency and durability of construction and chemical applications. [1]
Hydroxypropyl starch ether is a versatile and high-performance additive that addresses the challenges of modern industries. From construction to textiles and oil drilling, its unique properties make it an indispensable component in various formulations. With its competitive pricing, ease of use, and proven benefits, HPS is a preferred choice for manufacturers seeking to enhance product quality and operational efficiency.

[1] National Institute of Standards and Technology (NIST). "Polymer-Based Additives in Industrial Applications." Retrieved from https://www.nist.gov.
