भित्ताको प्लास्टरको लागि सेतो पाउडर एचपीएमसी प्रयोग गर्ने तरिका
The production process of MHEC powder involves several sequential stages. It commences with the extraction of cellulose from natural sources like wood pulp or cotton. Subsequently, the extracted cellulose undergoes alkalization. The ensuing step encompasses etherification via sodium mono chloroacetate, culminating in the production of MHEC. This resultant substance is then subjected to purification, drying, and milling, ultimately yielding the final MHEC product.
3. Pure HPMC cellulose aqueous solution is clear, with high light transmittance, and water retention rate ≥ 97%; The adulterated HPMC cellulose aqueous solution is turbid, and the water retention rate is difficult to meet the requirements. The light transmittance of the aqueous solution is good, which indicates that the product contains less insoluble substances and high content of active ingredients.