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不同改性方法对竹塑复合材料拉伸性能的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2014年03期
Page:
115-119
Column:
研究论文
publishdate:
2014-05-15

Article Info:/Info

Title:
Effects of different modifying treatments on tensile properties of bamboo-plastic composites
Article ID:
1000-2006(2014)03-0115-05
Author(s):
LI Wenyan1ZHANG Shuangbao1*REN Wenhan2WANG Ge2CHENG Haitao12*
1. College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China;
2. International Center for Bamboo and Rattan, Beijing 100102, China
Keywords:
CaCO3 nanoparticles impregnation bamboo-plastic composites individual bamboo fiber tensile properties
Classification number :
S781
DOI:
10.3969/j.issn.1000-2006.2014.03.022
Document Code:
A
Abstract:
The objective of this research was to investigate the influence of bamboo fibers modified by impregnating with CaCO3 nanoparticles on the adsorption situation of CaCO3 particles and tensile properties of individual bamboo fiber as well as its composites. Effects of impregnated modification and in situ modification were compared. The results indicated that impregnated modification could make CaCO3 particles which were good dispersion with uniform size fill the micropore and fold of the bamboo fibers to reduce manufacture defect. CaCO3 loading reached 21.39%, tensile strength, modulus of elasticity and elongation of impregnated modified individual bamboo fiber increased significantly by 15.98%, 22.15% and 5.21%, respectively, but were below tensile properties of in situ modified fiber. By inspect and analysis to fracture morphology, the interfacial compatibility of composites which made from modified bamboo fiber and polypropylene film were improved. Tensile properties of the composites were enhanced accordingly. The tensile strength and tensile modulus of the composites reinforced with impregnated fibers increased by 6.95% and 15.80%, respectively, while the composites reinforced with in situ deposited CaCO3 increased by 18.68% and 25.41%, compared to those reinforced with untreated fibers. In situ modification showed better improvement of mechanical properties both of individual bamboo fiber and composites. The process of impregnated modification was much easier.

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Last Update: 2014-05-15