XJIPC OpenIR  > 环境科学与技术研究室
Thesis Advisor马鹏程
Degree Grantor中国科学院大学
Place of Conferral北京
Degree Name硕士
Degree Discipline材料工程
Keyword棉布纺织物 表面处理 亲水疏油材料 油水分离


Other Abstract

Materials with hydrophilic and oleophobic properties play an important role for enhancing the utilization of natural resources and removing oily pollutants in water. This thesis focuses on the development of cotton-based membranes with multi-functional properties by using commercial cotton fabrics as raw material. Smart cotton fabrics and cellulose-cotton membrane were prepared through a simple surface coating process, and the feasibility of employing the developed fabrics for oil-water separation was studied. The thesis was structured by the following three chapters: 1. Smart cotton fabric with response to pH and temperature was prepared by applying a thin layer of copolymer coating originated from N-isopropylacrylamide and acrylic acid. the fabric showed dual responses to the acidity and temperature of solution, as well as superhydrophilic and underwater superoleophobic properties. The fabrics can efficiently separate floating oil and dispersed oil droplets in crude oil-water mixture.2. Cellulose-cotton fabric composite membrane was fabricated by coating α-cellulose on cotton fabric through the dissolution-regeneration of cellulose in water. The results confirmed that the α-cellulose was converted to β-one after coating onto cotton fabrics. The coating led to the significant enhancement on the mechanical properties of cotton fabrics, and the composite membrane can effectively separate emulsified oil droplets in emulsion system like octane-water, toluene-water and chloroform-water mixtures. 3. By using cellulose-cotton fabric composite membrane as a key material, a prototype oil-water separator was developed. The system consists of feeding part, oil-collector, filration membrane, vacuum chamber and water discharging parts. With assistance of vacuum pump, the designed separator can separate oil-water mixtures with dispersed and emusified oil droplets with a high efficiency.

Document Type学位论文
Recommended Citation
GB/T 7714
陈军腾. 功能型棉纤维材料的制备及其油水分离性能研究[D]. 北京. 中国科学院大学,2016.
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功能型棉纤维材料的制备及其油水分离性能研(3396KB)学位论文 开放获取CC BY-NC-SAApplication Full Text
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