造纸用PBO纤维沉析浆粕的制备  

Preparation of Precipitated PBO Pulp for Papermaking

作　　者：王习文[1] 詹怀宇[1] 胡健[1] 周雪松[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《中国造纸》2007年第5期14-17,共4页China Pulp & Paper

摘　　要：采用沉析法制备造纸用PBO浆粕,实验结果表明,沉析法制备PBO沉析浆粕的最佳工艺条件为:PBO浆液浓度为1%,凝固液为稀硫酸,搅拌设备为果汁机,搅拌速度为2000r/min。制备的PBO沉析浆粕具有较大的比表面积和良好的纤维形态,而且可以通过控制凝固液的浓度,得到不同性能的PBO沉析浆粕。A method to prepare PBO pulp--precipitation process was put forward in this paper. PBO concentrated sulfuric acid solution was injected into a rapidly stirring coagulant then the PBO pulp was produced. The process parameters were studied. The optimal conditions of precipitation were： 1% consistency of PBO concentrated H2SO4 solution, diluted H2SO4 solution was used as coagulant, and stirring by a juice machine at the speed of 2000r/min. The precipitated PBO pulp has higher specific area and better morphology. The properties of the precipitated pulp can be controlled by the concentration of the coagulant.

关 键 词：PBO纤维 浆粕 沉析法 

分 类 号：TS722[轻工技术与工程—制浆造纸工程]