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  • Furthermore, HPMC's biocompatibility and non-toxicity make it suitable for use in a variety of medical devices and implants. For example, it can be used as a coating for surgical sutures, reducing the risk of infection and inflammation. In the field of ophthalmology, HPMC is used in the production of soft contact lenses, providing comfort and improving the wearability of these devices.
  • A study published in the Journal of Applied Toxicology evaluated the acute oral toxicity of HPMC in rats and found no side effects at doses up to 5000 mg/kg body weight (the highest dose tested). In addition, subchronic and chronic toxicity studies show no significant side effects in animals, even at high doses.

  • Lastly, HPMC has applications in the paper manufacturing process, where it improves the strength and printability of paper. It is also used in the production of adhesives and as a binder in the production of non-woven fabrics.
  • The reaction conditions, including the ratio of reagents, temperature, and time, are carefully controlled to yield HPMC with specific properties tailored to its intended use. After the reactions, the resulting product is washed, dried, and then ground into a fine powder, ready for application. HPMC finds extensive use in the pharmaceutical industry as a binder, disintegrant, and viscosity modifier in tablets and capsules. In construction, it is used as a thickener and water retention agent in mortar and plaster. It also plays a crucial role in the food industry as a food additive, improving texture and stability. Additionally, HPMC is employed in the cosmetic and paint industries due to its film-forming and emulsifying properties. In summary, HPMC, made primarily from cellulose and chemically modified with hydroxypropyl and methyl groups, is a versatile material with a broad spectrum of applications. Its production process, rooted in chemistry, showcases the transformative power of modifying natural substances to meet specific industrial needs.
  • 5. Hebei Jinguang Chemical Co., Ltd.
  • HEC, derived from cellulose through ethoxylation, is a non-ionic cellulose ether. It is widely used as a thickening agent, stabilizer, and suspending agent due to its excellent water retention capabilities. HEC's ability to form a gel under certain conditions makes it ideal for applications in construction materials, where it enhances the workability of concrete and mortar. In the pharmaceutical industry, HEC is used in tablet coatings and as a viscosity enhancer in oral and topical formulations.
  • China's redispersible powder industry has also benefitted from the government's push towards sustainable construction practices