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针对白泥纤维脆性大,刚性强的特征,通过化学接枝法合成了聚乙烯醇-γ-缩水甘油醚氧丙基三甲氧基硅烷(PVA-KH560)软化剂,采用傅里叶红外光谱仪对软化剂进行了表征。利用此软化剂对白泥纤维进行软化改性,通过失重率法、感官鉴定纤维柔软度法、感官鉴定纤维强度法、过筛法对软化效果进行评估,得到最佳的软化方案。并利用软化后的白泥纤维与植物纤维进行配抄,测定其对纸张性能的影响。结果表明,随白泥纤维用量的增加,纸张抗张强度、环压强度均减小。因此,要控制白泥纤维的使用量。
According to the characteristics of white mud fiber brittleness and strong rigidity, the polyvinyl alcohol-γ-glycidoxypropyltrimethoxysilane (PVA-KH560) softener was synthesized by chemical grafting method. The Fourier transform infrared spectroscopy Softeners were characterized. The softening agent is used to soften and modify the white mud fiber. The softening effect is evaluated by weight loss method, sensory identification fiber softening method, sensory identification fiber strength method and sieving method, and the optimal softening scheme is obtained. And the use of softened white mud fibers and plant fibers with copy, measured on the paper performance. The results show that with the increase of the amount of white mud fiber, the paper tensile strength and ring crush strength decrease. Therefore, to control the amount of white mud fiber.