宋 冰,石 勇,陆海龙,马金霞,周小凡.细菌纤维素纸质复合微滤膜的开发[J].中国造纸学报,2015,30(4):32-37 本文二维码信息
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细菌纤维素纸质复合微滤膜的开发
Preparation and Characteristics of a Paper-based Bacterial Cellulose Microfiltration Membrane
  
DOI:10.11981/j.issn.1000-6842.2015.04.32
中文关键词:  细菌纤维素  微滤复合膜  截留率  纸质基膜
Key Words:bacterial cellulose  microfiltration composite membrane  retention rate  paper-based membrane
基金项目:国家自然科学基金(批准号:31270629);江苏高校优势学科建设工程项目(PAPD)。
作者单位
宋 冰 南京林业大学江苏省制浆造纸重点实验室,江苏南京,210037 
石 勇 南京林业大学江苏省制浆造纸重点实验室,江苏南京,210037 
陆海龙 南京林业大学江苏省制浆造纸重点实验室,江苏南京,210037 
马金霞 南京林业大学江苏省制浆造纸重点实验室,江苏南京,210037 
周小凡* 南京林业大学江苏省制浆造纸重点实验室,江苏南京,210037 
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中文摘要:
      分别利用硫酸盐阔叶木浆、硫酸盐针叶木浆和机械浆抄造纸质基膜并测定其过滤性能;采用溶液过滤复合法,通过过滤使分散均匀的细菌纤维素在纸质基膜上形成一层致密薄膜层,即得到细菌纤维素纸质复合微滤膜。结果表明:采用打浆度为10°SR的机械浆抄造定量为90 g/m2的纸质基膜的过滤性能最好;采用该纸质基膜制备的细菌纤维素纸质复合微滤膜(细菌纤维素复合量6 g/m2)平均孔径为0.01~1 μm,达到微滤膜水平,且强度性能、耐高温性、耐碱性良好。
Abstract:
      The bacterial cellulose microfiltration membrane with a paper supporting layer was prepared. The supporting paper was made of plant fibers (mechanical pulp), with basis weight of 90 g/m2. Under the pressure of 0.1 MPa, uniformly dispersed bacterial cellulose was poured onto the paper until the water was filtrated completely. Then, a dense membrane layer was formed on the porous paper. The results showed that the diameters of the pore of the microfiltration membrane were 0.01~1μm, the mechanical strength, high-temperature resistance and alkali resistance of the membrane were quite well, and the production process was simple and environmentally friendly.
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