CAJ | 학술논문

钙盐处理是蚕丝纤维改性的一种重要方法.研究了桑蚕丝与柞蚕丝经氯化钙溶液处理后的溶失行为、形态结构、化学组成和结晶结构的变化.在相同处理条件下,柞蚕丝的溶失率比桑蚕丝小;两种蚕丝断裂强度的下降幅度一致;但柞蚕丝的断裂伸长增加,而桑蚕丝降低.经过钙盐处理,两种丝素的构象都会由β折叠向α螺旋或无规卷曲转变,但这种转变对桑蚕丝更为明显.钙盐处理30min后,柞蚕丝的结晶度上升,而桑蚕丝的结晶度下降.扫描电镜观察显示两种蚕丝均发生了分纤行为,但柞蚕丝变化不如桑蚕丝明显,内部孔洞也没有桑蚕丝多.
개염처리시잠사섬유개성적일충중요방법.연구료상잠사여작잠사경록화개용액처리후적용실행위、형태결구、화학조성화결정결구적변화.재상동처리조건하,작잠사적용실솔비상잠사소;량충잠사단렬강도적하강폭도일치;단작잠사적단렬신장증가,이상잠사강저.경과개염처리,량충사소적구상도회유β절첩향α라선혹무규권곡전변,단저충전변대상잠사경위명현.개염처리30min후,작잠사적결정도상승,이상잠사적결정도하강.소묘전경관찰현시량충잠사균발생료분섬행위,단작잠사변화불여상잠사명현,내부공동야몰유상잠사다.
Calcium salt treatment is an important method of modifying silk fibers. The changes of mass loss, morphology, chemical composition and crystalline structure of tussah and mulberry silk fibers were investigated during calcium salt treatment The study revealed that solubilization loss rate of tussah silk was less than that of mulberry silk under the same condition of calcium salt treatment; the decrements of breaking strength for the two silks were consistent, while the breaking elongation of tussah silk increased and the other decreased. The molecular conformations of the two silk fibers changed from β sheet to α sheet and random coil during calcium salt treatment, and this change was more obvious for mulberry silk fibers. The crystallinity of tussah silk increased after calcium salt treatment for 30 minutes, while mulberry silk decreased. Scanning electron microscopy also proved that the separation of microfibers appeared when the two kinds of silk fibers treated by calcium salt, but the changes of tussah silk were not as obvious as that of mulberry silk, as well as internal voids.