蒸汽闪爆对废弃山羊毛结构及性能的影响
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摘要
为实现废弃山羊毛的再利用,采用简单、经济、高效、环保的蒸汽闪爆法对其进行改性处理。通过扫描电镜、X射线衍射、拉曼光谱等测试手段研究了不同保压时间下山羊毛结构与性能的变化。研究表明:蒸汽闪爆处理后的山羊毛鳞片层被破坏,部分二硫键氢键断裂;蒸汽闪爆会导致部分蛋白质大分子由α-螺旋链转变为β-折叠链,从而结晶度下降。尽管蒸汽闪爆处理后的废弃山羊毛的力学性能变差,但是废弃山羊毛的亲水性得到了改善。
In order to realize the reuse of waste coarse goat fiber, it was proposed to modify it by the method of steam explosion, which is simple, economical, efficient and environmental. The changes of the structure and properties of goat fibers after different holding pressures were studied by SEM, XRD and Raman spectra. The results showed that the scale layers were destroyed, some disulfide bonds and hydrogen bonds were broken after steam explosion. It was also found that some protein macromolecules transformed from α-helix structure to β-sheet structure, and the crystallinity index was decreased due to steam explosion. Although the mechanical properties of the waste goat fibers after steam explosion were deteriorated, their hydrophilicity were improved.
In order to realize the reuse of waste coarse goat fiber, it was proposed to modify it by the method of steam explosion, which is simple, economical, efficient and environmental. The changes of the structure and properties of goat fibers after different holding pressures were studied by SEM, XRD and Raman spectra. The results showed that the scale layers were destroyed, some disulfide bonds and hydrogen bonds were broken after steam explosion. It was also found that some protein macromolecules transformed from α-helix structure to β-sheet structure, and the crystallinity index was decreased due to steam explosion. Although the mechanical properties of the waste goat fibers after steam explosion were deteriorated, their hydrophilicity were improved.
引文
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[7] 章玉清,杨瑞金,张文斌,等. 蒸汽闪爆结合碱溶酸沉法提取高温花生粕中的蛋白质[J]. 食品工业科技, 2013,34(14):278-282.
[8] ZHANG Y,ZHOA W,YANG R.Steam flash explosion assisted dissolution of keratin from feathers[J]. Acs Sustainable Chemistry & Engineering, 2015,3(9):150717112248006.
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[11] 侯秀良,刘启国,王善元. 采用WAXD、DSC技术研究山羊绒、羊毛纤维的结晶结构[J]. 东华大学学报(自然科学版), 2004,30(3):86-89.
[12] LI C H, NGUYEN X, NARHI L, et al. Applications of circular dichroism (CD) for structural analysis of proteins: qualification of near-and far-UV CD for protein higher order structural analysis[J]. Journal of Pharmaceutical Sciences, 2011,100(11):4642.
[13] ACKERMANN K R, KOSTER J, SCHLüCKER S.Conformations and vibrational properties of disulfide bridges:Potential energy distribution in the model system diethyl disulfide[J]. Chemical Physics, 2009,355(1):81-84.
[14] SCHLUCKER S, LIANG C, STREHLE K R. Strehle,et al.Conformational differences in protein disulfide linkages between normal hair and hair from subjects with trichothiodystrophy:A quantitative analysis by Raman microspectroscopy[J]. Biopolymers, 2006,82(6):615-622.
[15] 周文龙,孙铠. 羊毛鳞片表层类脂结构对羊毛特性的影响[J]. 毛纺科技, 2001,29(1):17-21.
[2] 张春,李珍. 山羊毛的改性及应用[J]. 毛纺科技, 1995,23(1):13-16.
[3] 隋淑英,孙永军,朱平. 山羊毛的化学软化处理工艺的研究[J]. 青岛大学学报(工程技术版), 1994(2):59-63.
[4] 王国军,熊洁羽,赵德建,等. 山羊毛提取L-胱氨酸工艺研究[J]. 化工进展, 2002,21(2):116-119.
[5] 孙芳芳,侯秀良,张莉,等. 蒸汽闪爆与碱处理结合法制备棉秆皮纤维[J]. 化工新型材料, 2015(10):76-78.
[6] 柯贵珍,王善元,徐卫林. 蚕丝蒸汽闪爆改性后的形态结构研究[J]. 高分子学报, 2004,1(1):103-106.
[7] 章玉清,杨瑞金,张文斌,等. 蒸汽闪爆结合碱溶酸沉法提取高温花生粕中的蛋白质[J]. 食品工业科技, 2013,34(14):278-282.
[8] ZHANG Y,ZHOA W,YANG R.Steam flash explosion assisted dissolution of keratin from feathers[J]. Acs Sustainable Chemistry & Engineering, 2015,3(9):150717112248006.
[9] MA B,QIAO X,HOU X,et al.Pure keratin membrane and fibers from chicken feather[J]. International Journal of Biological Macromolecules, 2016,89:614-621.
[10] 于卫东. 纺织材料学[M]. 北京:中国纺织出版社, 2006:19-20.
[11] 侯秀良,刘启国,王善元. 采用WAXD、DSC技术研究山羊绒、羊毛纤维的结晶结构[J]. 东华大学学报(自然科学版), 2004,30(3):86-89.
[12] LI C H, NGUYEN X, NARHI L, et al. Applications of circular dichroism (CD) for structural analysis of proteins: qualification of near-and far-UV CD for protein higher order structural analysis[J]. Journal of Pharmaceutical Sciences, 2011,100(11):4642.
[13] ACKERMANN K R, KOSTER J, SCHLüCKER S.Conformations and vibrational properties of disulfide bridges:Potential energy distribution in the model system diethyl disulfide[J]. Chemical Physics, 2009,355(1):81-84.
[14] SCHLUCKER S, LIANG C, STREHLE K R. Strehle,et al.Conformational differences in protein disulfide linkages between normal hair and hair from subjects with trichothiodystrophy:A quantitative analysis by Raman microspectroscopy[J]. Biopolymers, 2006,82(6):615-622.
[15] 周文龙,孙铠. 羊毛鳞片表层类脂结构对羊毛特性的影响[J]. 毛纺科技, 2001,29(1):17-21.