目前，国内大多数干混砂浆生产企业为降低成本，普遍采用羟丙基甲基纤维素醚（HPMC）作为增稠、保水剂，如何控制好普通干混砂浆的质量，尤其是高分子添加剂的严格选配，已是一个不容忽视的质量控制问题。
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以木屑纤维素为原料，以3 -氯- 2 -羟丙基三甲基氯化铵(CTA)为醚化改性剂，制备了阳离子木屑纤维素。
The cationic sawdust cellulose was prepared with the sawdust cellulose as raw material and 3-chlorine-2-hydroxypropyl chloride (CTA) as an etherification modifying agent.
羟丙基甲基纤维素是以天然高分子材料纤维素为原料，经一系列化学加工而制成的非离子型纤维素醚。
Hydroxypropyl methyl cellulose is a natural polymer cellulose as raw material, through a series of chemical processing and made of nonionic cellulose ether.
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