选择性氧化棉纤维的力学性能研究

Research on mechanical properties of cotton fiber with selective oxidation by sodium periodate

采用高碘酸钠溶液对棉纤维进行选择性氧化处理,通过控制氧化反应条件,研究了高碘酸钠浓度、氧化反应时间、处理温度等因素对棉纤维力学性能的影响。结果表明,棉纤维经高碘酸钠氧化后产生重量损失,轻度氧化的棉纤维断裂强度基本不变,而深度氧化的棉纤维断裂强度下降,且这一趋势随着棉纤维氧化度的提高更加明显。

The cotton fiber was treated by the selective oxidation with the solution of sodium periodate,and the effects of concentration of sodium periodate,oxidation time,and treatment temperature on the mechanical properties of oxidized cotton fiber were investigated through the control of oxidation process.The results showed that the weight of cotton fiber after sodium periodate oxidation reduced,the breaking tensile strength of cotton fiber with slight oxidation did not change significantly,whereas decreased after severe oxidation by sodium periodate,and the breaking strength decreased more obviously with the increase of oxidation degree of cotton fiber.