HPMC水溶液具有表面活性功能，可作为胶体保护剂，乳化剂和分散剂。
HPMC solution has the function of surface activity, which can be used as colloid protecting agent, emulsifying agent and dispersant.
改质粉末的烧结性质因为表面能的降低以及保护剂包覆粉末而异于原始粉末。
The sintering behaviors of modified powders were different from those of normal powders, because the surface energy was decreased and the powder surface was protected by the agents.
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