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Durable and highly hydrophilic polyester fabric was produced by cross-linking Sericin on air-atmospheric plasma treated polyester fabric. Surface change properties were characterized by wettability measurements (water contact angle-WCA and % capillarity), Atomic Force Microscopy and zeta potential measurements. Chemical analyses using TBO dye were carried out to estimate surface functional groups after plasma treatment and Sericin cross-linking. Positive zeta potential values at low pH values, as well as AFM images confirm grafting of Sericin. With Sericin cross-linked onto both cleaned PET and plasma-treated PET, WCA reached that of PET subjected to plasma treatment alone, that is WCA between 40° and 46° compared to 81° for the hydrophobic untreated polyester fabric. However, plasma-treated polyester is readily subjected to aging, while cross-linked Sericin on plasma-treated PET yields a more durable hydrophilic finish with a high capillarity, 85% compared to 39% for Sericin on the untreated PET, and 3% for the untreated PET fabric. Plasma treatment creates chain-scissions at the polymer surface leading to the appearance of polar groups which promote the cross-linking of greater amount of Sericin. 相似文献
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以二氯均三嗪化合物作为交联剂,采用丝胶对棉织物进行改性,探讨了不同丝胶质量浓度对改性棉织物性能的影响。结果表明,棉织物用丝胶改性,能提高其尺寸稳定性、抗皱性、吸湿性,但对白度影响不大。 相似文献
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本文就戊二醛(GA法)丝胶固着工艺和减少丝胶固着丝的黄变程度进行了研究,提出了高温短时间浸渍加脱水冷堆的GA法丝胶固着生产工艺。研究结果表明:在酸性条件下,添加适量稀土元素,采用酸性盐类作pH调节剂,适当降低固着时的pH值,能有效地提高丝胶固着牢度和降低固着丝的黄变程度.在弱碱性条件下,添加适当的缓冲稳定剂,能提高丝胶固着牢度和减少黄变现象。 相似文献
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桑蚕丝素和丝胶溶液在一定的条件下会形成凝胶。其凝胶化的过程与温度、浓度、溶液的PH值有关。温度和浓度的提高有利于凝胶化速度的加快,丝素在PH3~4时最容易形成凝胶.而丝胶则在PH6~7时最易形成凝胶;凝胶的强度也和上述因素有关。文章并指出凝胶化实质上是丝素和丝胶大分子p化的过程。 相似文献
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以丝胶蛋白和聚乙烯醇为原料,按一定比例混合,并加入适量硼酸作为交联剂,在一定温度下制备成膜。通过测定交联膜的力学性能、热水溶失率和透光性,确定最佳共混比例及其他条件。结果表明:在65℃、丝胶∶聚乙烯醇(m/m)=3∶7、硼酸含量为0.4%条件下膜的相容性最好,抗张强度达到58.5N/mm2,综合性能较好。 相似文献
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