Carboxymethyl cellulose (CMC) was once widely used in low‑end construction mortars due to its low price. However, as quality requirements rise, its performance weaknesses are becoming more and more obvious. That said, this does not mean CMC must be abandoned entirely. Understanding its limitations — and either replacing it where needed or using it cleverly
In the realm of construction and building materials, the importance of additives in enhancing the performance of building products cannot be overstated. Among these additives, cellulose ethers have emerged as a critical component in the formulation of interior and exterior wall dry powder plasters. This article delves into the application, benefits, and selection of cellulose
Following the previous article, we continue to introduce HEC and CMC in the classification of cellulose ethers. 1.1.3 Hydroxyethyl cellulose (HEC) It is made from refined cotton treated with alkali and reacted with ethylene oxide as etherizing agent in the presence of acetone. Its substitution degree is generally 1.5~2.0. It has strong hydrophilicity and is
