超疏水性纤维的制备及其吸油能力的研究

Preparation of Superhydrophobic Fibers and Oil Adsorption Capacity

研究正硅酸乙酯（TEOS）以及十八烷基三氯硅烷（OTS）对棉纤维、亚麻纤维和木纤维进行疏水处理,通过接触角测量、FT-IR、XRD、TGA以及SEM等分析方法对三种纤维处理前后进行化学结构和微观形貌表征。本实验随后使用三种疏水纤维对7种不同粘度、不同密度的油进行吸附测试,实验测得疏水棉纤维吸油量是原棉纤维的4~7倍,而疏水棉纤维对大豆油的吸油量达到23.97 g/g。最后对棉纤维吸油循环性能进行测试,发现随着循环次数的增加,吸油量仍可以达到理想水平。

In this paper,the hydrophobic treatments on cotton fiber,flax fiber and wood fiber by using tetraethoxysilane（ TEOS）and Octadecyltrichlorosilane（ OTS） were studied. Water contact angle,FT-IR,XRD,TGA and SEM techniques were used to characterize the chemical structure and micro morphology of the three kinds of samples before and after treatment. Seven different viscosity and density of oils were used as adsorbent,and the adsorption characteristics of the samples were tested. The results showed that the oil adsorption by hydrophobic cotton fiber can be increased 4- 7 times than natural cotton fiber,and the adsorption of soybean oil can reach 23. 97 g / g. Finally,the circulation property of hydrophobic cotton fiber was tested and measured,and it was found that with the increase of the cycling times,the oil adsorption can still achieve an expected effect.