为研究热处理对棕榈纤维拉伸性能的影响,在不同温度(100～200 ℃,间隔20 ℃)、不同时间(3、6、9 h)条件下对棕榈纤维进行加热处理,并测试其拉伸性能。结果表明:加热温度对棕榈纤维的拉伸性能有极显著影响,随着加热温度的上升,棕榈纤维的杨氏模量逐渐变大,断裂强度和断裂伸长率逐渐降低,并在加热温度为160～180 ℃时纤维的拉伸性能发生突变; 加热时间对棕榈纤维的拉伸性能也有显著影响,即随加热时间的延长,杨氏模量逐渐增大,断裂强度和断裂伸长率逐渐降低。
Abstract
In order to understand the effects of heating treatment on tensile properties of palm fibers, two factorial experiments were performed in the study at various temperature levels(from 100 to 200 ℃ with an increment of 20 ℃)and time(3, 6 and 9 h). The test results showed that the heating temperature exerted extremely significant influence on tensile properties of palm fibers, and higher heating temperature led to higher Young's modulus, lower breaking strength and elongation at break. The tensile properties of palm fibers changed sharply in the range of 160-180 ℃. The Young's modulus of palm fibers increased, and the breaking strength and elongation at break decreased with longer heating time. The influence of heating time was also significant.
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参考文献
[1] 李渝黔,韦贵菊,朱利军,等. 棕床垫用山棕纤维材料的基础研究[J]. 家具,2013,34(5):21-23.
Li Y Q, Wei G J, Zhu L J, et al. Basic research on palm fibre material used in palm mattress[J]. Furniture, 2013, 34(5): 21-23.
[2] 刘鑫,吴智慧,吴燕,等. 棕纤维材料特性及床芯生产工艺[J]. 林业科技开发,2014,28(6):120-123.
Liu X, Wu Z H, Wu Y, et al. Palm fiber characteristics and mattress core production process[J]. China Forestry Science and Technology, 2014, 28(6): 120-123.
[3] 鲁博,张林文,曾竟成,等. 天然纤维复合材料[M]. 北京:化学工业出版社,2005:16-28,175.
[4] 张旺玺. 纤维材料工艺学[M]. 郑州:黄河水利出版社,2010:85-86.
[5] 戴正烈. 基于复合材料的新型纤维床垫设计与力学分析[J]. 科技创新导报,2008(12):150-151.
[6] Du Y C, Zhang J L, Xue A N. Temperature-duration effects on tensile properties of kenaf bast fiber bundles[J]. Composites Part B: Engineering, 2009, 40(3): 189-196.
[7] 邱克. 材料力学[M]. 北京:国防工业出版社,2009:12-14.
[8] 李晓龙. 棕榈纤维的基本性能研究[D]. 重庆:西南大学,2012:25-29.
Li X L. Studies on basic properties of palm fiber[D]. Chongqing: Southwest University,2012:25-29.
[9] 杨庆生,崔芸,龙连春. 工程力学[M]. 北京:科学出版社,2008:42-45.
[10] 严圣平. 工程力学(静力学和材料力学)[M]. 北京:高等教育出版社,2013:27-29.
[11] 陈云信. 工程力学[M]. 武汉:武汉大学出版社,2013:46-47.
[12] 李坚. 木材科学[M]. 2版. 北京:高等教育出版社,2002:84-128.
[13] 王春红,王瑞,于飞,等. 竹原/亚麻复合材料力学性能的模糊评判[J]. 纺织学报,2007,28(3):34-37.
Wang C H, Wang R, Yu F, et al. Fuzzy evaluation of the mechanical properties of bamboo/flax composites[J]. Journal of Textile Research, 2007, 28(3): 34-37.
[14] 俞茂宏. 强度理论百年总结[J]. 力学进展,2004,34(4):529-560.
Yu M H. Advances in strength theories for materials under complex stress state in the 20th century[J]. Advances in Mechanics, 2004, 34(4): 529-560.
[15] 王坚. 关于强度理论的几点探讨[J]. 沈阳工程学院学报(自然科学版),2007,3(1):85-89.
Wang J. Some discussion on strength theory[J]. Journal of Shenyang Institute of Engineering(Natural Science), 2007, 3(1): 85-89.
基金
收稿日期:2015-05-13 修回日期:2015-07-31
基金项目:江苏高校优势学科建设工程资助项目(PAPD); 江苏省2013年度普通高校研究生科研创新计划项目(CXZZ13-0546)
第一作者:刘鑫(181008386@qq.com),博士生。*通信作者:吴智慧(wzh550@sina.com),教授。
引文格式:刘鑫,吴智慧,张继雷,等. 加热温度和时间对棕榈纤维拉伸性能的影响[J]. 南京林业大学学报(自然科学版),2016,40(2):149-154.
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