全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
-  2015 

碱处理对竹纤维及竹纤维增强聚丙烯复合材料性能的影响
Effects of alkali treatment on properties of bamboo fiber and bamboo fiber reinforced polypropylene composites

DOI: 10.13801/j.cnki.fhclxb.20141105.003

Keywords: 碱处理,竹纤维,聚丙烯,复合材料,剪切性能,弯曲性能
alkali treatment
,bamboo fiber,polypropylene,composites,shear properties,flexural properties

Full-Text   Cite this paper   Add to My Lib

Abstract:

为探究竹纤维表面能对纤维与树脂的粘附功及复合材料界面的影响, 采用碱处理对竹纤维进行表面改性, 通过模压工艺制备了竹纤维增强聚丙烯(PP)复合材料。研究了碱处理对竹纤维性能、竹纤维与PP间的粘附功及对竹纤维/PP复合材料力学性能的影响, 采用SEM研究了不同浓度碱处理后竹纤维表面形貌的变化。结果表明: 随着碱浓度的增加, 竹纤维断裂强度呈现一定波动, 当碱浓度为1wt%时竹纤维断裂强度达到最大值; 竹纤维与PP的粘附功与竹纤维极性比密切相关, 竹纤维极性比越小, 粘附功越大; 随着碱浓度增大, 竹纤维与PP间粘附功与竹纤维/PP复合材料剪切性能呈现相同的趋势, 并且都在碱浓度为20wt%时达到最大值, 此时竹纤维与PP的粘附功较未处理时提高了67.18%; 竹纤维/PP复合材料剪切性能较未处理时提高了23.29%; 复合材料弯曲强度在碱浓度为5wt%时达到最大值, 相比未处理时提高了23.13%。 In order to investigate the effect of bamboo fiber energy on adhesion work between fiber and resin and the interface of composites, the surface of bamboo fiber was modified by alkali treatment, then bamboo fiber reinforced polypropylene(PP) composites were prepared by means of compression molding technology. The effects of alkali treatment on properties of bamboo fiber, the adhesion work between bamboo fiber and PP and the mechanical properties of bamboo fiber/PP composites were studied. SEM was used to describe bamboo fiber surface morphology change after different concentration of alkali treatment. The results reveal that with the increase of the concentration of alkali, bamboo fiber strength shows some fluctuations, while at the alkali concentration of 1wt%, bamboo fiber strength reaches the maximum value. The adhesion work between bamboo fiber and PP is closely related to bamboo fiber polarity ratio. The smaller polarity ratio is, the bigger adhesion work becomes. With the increase of the concentration of alkali, the adhesion work between bamboo fiber and PP resin and shear properties of bamboo/PP composites show the same trend, and both of them attain optimal level at the alkali agent concentration of 20wt%. Compared with untreated bamboo fiber, the adhesion work between bamboo fiber and PP resin increases by 67.18%, while bamboo fiber/PP composite's shear properties increase by 23.29%. While at the alkali agent concentration of 5wt%, the flexural strength of the bamboo fiber/PP composites attains optimal level, which is 23.13% higher than that of untreated. 国家自然科学基金(51303131)

References

[1]  Zheng X, Li X G, Wu Y Q, et al.Natural degradation properties of bamboo fibers/polylactic aced biodegradable composites[J]. Acta Materiae Compositae Sinica, 2014, 31(2): 362-367 (in Chinese). 郑霞, 李新功, 吴义强, 等. 竹纤维聚乳酸可生物降解复合材料自然降解性能[J]. 复合材料学报, 2014, 31(2) : 362-367.
[2]  Li X G, Zheng X, Wu Y Q.Interface control of bamboo fibers/polylactic acid composites[J]. Acta Materiae Compositae Sinica, 2012, 29(4): 94-98 (in Chinese). 李新功, 郑霞, 吴义强. 竹纤维聚乳酸复合材料界面调控[J]. 复合材料学报, 2012, 29(4): 94-98.
[3]  Kobavashi M, Asanao T, Kajivama M. Analysis on residue formation during wood liquefaction with polyhydric alcohol [J]. Wood Science and Technology, 2004, 50(5): 407-414.
[4]  Zhang L, Feng S H. Study on improving compatibility of thermoplastics/plant fibers [J]. Engineering Plastics Application, 2006, 34(7): 75-78(in Chinese). 张丽, 冯绍华. 改善热塑性塑料/植物纤维界面相容性方法的研究 [J]. 工程塑料应用, 2006, 34(7): 75-78.
[5]  Diao J Y, Pan Z J.The aggregation structure and mechanical performance of jute ramie and palm fibre[J]. Journal of Suzhou University: Engineering Science Edition, 2008, 28(6): 39-43 (in Chinese). 刁均艳, 潘志娟. 黄麻、苎麻及棕榈纤维的聚集态结构与性能[J]. 苏州大学学报: 工科版, 2008, 28(6): 39-43.
[6]  Yang S H. Lignocellulosic chemistry[M]. Beijing: China Light Industry Press, 2001: 103-105 (in Chinese). 杨淑惠.植物纤维化学[M].北京: 中国轻工业出版社, 2001: 103-105.
[7]  Zhang L.Study on surface modification of natural fibers and polypropylene composites[D]. Qingdao: Qingdao University of Science &Technology, 2007 (in Chinese). 张丽. 植物纤维表面改性及聚丙烯复合材料的研究[D]. 青岛: 青岛科技大学, 2007.
[8]  Shanghai Textile Industry Technical Supervision.GB/T 14337-2008 Testing method for tensile properties of man-made staple fibers [S]. Beijing: Standards Press of China,2008 (in Chinese). 上海市纺织工业技术监督所.GB/T 14337-2008化学纤维、短纤维拉伸性能试验方法[S]. 北京: 中国标准出版社, 2008.
[9]  Jiang Z H, Chen F M, Wang G, et al.Surface energy characterization of bamboo fiber determined by dynamic contact angle analysis[J]. Journal of Beijing Forestry University, 2013, 35(3): 143-148 (in Chinese). 江泽慧, 陈复明, 王戈, 等. 基于动态接触角分析的竹纤维表面能表征[J]. 北京林业大学学报,2013, 35(3): 143-148.
[10]  Cao F W, Li M, Wang S K, et al. Wetting and adhesive interaction of the interface between carbon fiber and epoxy resin[J]. Acta Materiae Compositae Sinica, 2011, 28(4): 23-28 (in Chinese). 曹芳维,李敏,王绍凯, 等. 碳纤维与环氧树脂润湿和黏附作用[J]. 复合材料学报, 2011, 28(4): 23-28.
[11]  Certification and Accreditation Administration of the People's Republic of China.SN/T 2672-2010 Textile raw materials fineness testing method(diameter)-Micro projection [S]. Beijing: Standards Press of China, 2011 (in Chinese). 中国国家认证认可监督管理委员会. SN/T 2672-2010纺织原料细度试验方法(直径)显微投影仪法[S]. 北京: 中国标准出版社, 2011.
[12]  American Society of Testing Materials International. ASTM 790_03 Standard test methods for flexural properties of unreinforced and reinforced plastics and electrical insulating materials[S]. West Conshohocken: ASTM International, 2009.
[13]  Fiber Reinforced Plastic of Standardization Administration of China. JC/T 773—2010/ISO 14130:1997 Fibre-reinforced plastics composites—Determination of apparent interlaminar shear strength by short-beam method[S]. Beijing: China Building Materials Press, 2011 (in Chinese). 全国纤维增强塑料标准化技术委员会.JC/T 773—2010/ISO 14130: 1997 纤维增强塑料短梁法测定层间剪切强度[S]. 北京: 建材工业出版社, 2011.
[14]  Xu W.Extraction of natural bamboo fiber and the research on its structure and chemical properties [D]. Suzhou: Suzhou University, 2006 (in Chinese). 徐伟. 天然竹纤维的提取及其结构和化学性能的研究[D]. 苏州: 苏州大学, 2006.
[15]  Fox H W, Zisman W A. The spreading of liquids on low-energy surfaces II modified tetrafluoroethylene polymers[J]. Journal of Colloid Science, 1952, 7(2): 109-121.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133