【摘要】 为获得应用更为广泛的疏水亲油材料,用有机硅树脂溶胶浸润棉纤维,继而进行溶胶凝胶反应,得到复合了大量有机硅树脂的棉纤维。应用宏观亲油疏水性测试,研究反应条件和参数对疏水性的影响,应用电镜测试,并对试样进行元素分析,可发现树脂在纤维表面形成包裹层,从微观上解释了疏水性的原因,并讨论反应物不同配比对复合效果的影响,以及有机硅复合量对疏水亲油性的影响,最终得到3.5mol/L,5mL氨水催化凝胶的条件下得到的棉纤维样品,其复合增重倍数为2.87,质地最为松软,纤维间孔隙完整,吸油增重倍数为196.0%,吸油比最大,可以作为最佳配比使用。更多还原

【Abstract】 In order to obtain the hydrophobic lipophilic material to be applied extensively,the cotton fiber was infiltrated by silicone resin sol firstly,and then the sol-gel reaction occurred,finally resulting in production of composite materials composed by cotton fiber and silicone resin.The macro lipophilicity hydrophobic test was used to investigate the effect of reaction conditions and parameters on the hydrophobicity.The microstructure and component of the composites was analyzed by scanning electron microscopy and elemental analysis respectively.The result certified that a layer of silicone resin was coated on the surface of the fiber,leading to the hydrophobic property.The influence of reactant ratio on the composition effect and content of silicone on the hydrophobic lipophilic property was discussed.The appropriate reaction parameter was finally obtained as follows:using5mL(3.5mol/L)ammonia to catalyze the gelation of silicone sol to get the cotton fiber.Under this reaction condition,the weight of composite was in-creased 2.87 times than the original cotton fiber.The fiber morphology was almost completely preserved.The soft fiber texture with abundant pores and hydrophobic property resulted in a largest of oil absorption ratio of 196%.更多还原