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OALib Journal期刊
ISSN: 2333-9721
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搓丝处理后棉秆纤维束的形态特征及力学性能
DOI: 10.3969/j.issn.1000-2006.2013.05.021, PP. 108-112
Keywords: 棉秆纤维束,搓丝工艺,微观结构,力学性能
Abstract:
采用光学显微镜对经过搓丝工艺处理的棉秆皮部、木质部纤维束的形态特征进行观测分析,并对其力学性能采用纤维拉伸仪进行测定。研究结果表明：棉秆皮部纤维束长度为25？12mm，宽度为201？9μm，长宽比为158？78，横截面面积均值为42119？69μm2；棉秆木质部纤维束长度为13？57mm，宽度为253？36μm，长宽比为76？88，横截面面积为69249？16μm2。棉秆木质部纤维束的长度和长宽比均小于皮部，而宽度和横截面面积大于皮部。棉秆皮部纤维束抗拉强度为60？73mpa，弹性模量为2？17gpa，断裂伸长率为4？3；棉秆木质部纤维束拉伸强度为42？58mpa，弹性模量为1？33gpa，断裂伸长率为3？11，皮部纤维束的拉伸强度、弹性模量和断裂伸长率均大于木质部，柔韧性较好。棉秆皮部及木质部纤维束的力学性能低于其他植物，棉秆皮部纤维束的力学性能远低于皮部纤维细胞的力学性能。
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