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The quality of cellulose ether determines the quality of the dry mortar

The most basic material is cellulose, a natural polymer compound.The nature of the cellulose ether depends on the type, amount and distribution of the substituents.

According to the type of substituents on the molecular chain, it can be divided into monoether and mixed ether. The MC we usually use is monoether, and HPMC is mixed ether. The methyl cellulose ether MC is a product in which the hydroxyl group on the natural cellulose glucose unit is substituted by a methoxy group. The structural formula is [CO H7O2(OH)3-h(OCH3)h]x, hydroxypropylmethylcellulose ether HPMC Is a product in which a part of the hydroxyl group of the unit is substituted by a methoxy group and the other part is substituted by a hydroxypropyl group, and the structural formula is [C6H7O2(OH)3-mn(OCH3)m[OCH2CH(OH)CH3] n]x Hydroxyethyl methyl cellulose ether HEMC, these are the main varieties widely used and sold on the market.
From the solubility properties, it can be divided into ionic and nonionic. The water-soluble nonionic cellulose ether is mainly composed of two series of alkyl ethers and hydroxyalkyl ethers. Ionic CMC is mainly used in synthetic detergent textile printing and dyeing foods and petroleum exploitation. Non-ionic MC, HPMC, HEMC, etc. are mainly used in building materials, latex coatings, medicine, and daily chemistry. It is used as a thickener, a water retaining agent, a stabilizer, a dispersing agent, and a film forming agent.

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