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Evaluation and Impact Factors of the Mechanical Properties of Phloem Bundle Fibers Obtained from Kenaf Germplasm

文献类型： 外文期刊

作者： Cheng, Zhou 1 ; Jin, Guanrong 2 ; Huang, Siqi 3 ; Zhu, Yunguo 1 ; Li, Shan 1 ; Xie, Xueyun 1 ; Li, Defang 3 ;

作者机构： 1.Tongji Univ, Sch Life Sci & Technol, Shanghai, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Cotton & Flax Res Xiaosha, Hangzhou, Zhejiang, Peoples R China

3.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha, Hunan, Peoples R China

关键词： Chemical retting treatment; elastic modulus; kenaf germplasm; natural retting treatment; phloem bundle fiber; tensile strength

期刊名称：JOURNAL OF NATURAL FIBERS （ 影响因子：5.323； 五年影响因子：4.183 ）

ISSN： 1544-0478

年卷期： 2018 年 15 卷 2 期

页码：

收录情况： SCI

摘要： The mechanical properties of kenaf phloem bundle fibers are valuable for reinforced composites or boards, more so than similar materials also used in textile or papermaking applications. 55 kenaf germplasmstudied here showed an average phloem bundle fiber tensile strength of 643.6 MPa and an average elastic modulus of 23.3 GPa after chemical retting treatment. 19 of these kenaf germplasm had fiber tensile strengths > 700 MPa, which can be attributed to intensive breeding programs. The fiber tensile strength and elastic modulus of kenaf germplasm had a significant positive correlation, but there was no such correlation between a fiber's mechanical properties and its diameter or agronomic characteristics. Among 56 hybridized combination F1 generations, the highest tensile strength was 928.3 MPa from a combination of No. 30 of Xinan Wuchi x Guatemala 4. Therefore, breeding and screening are both useful for improving the mechanical properties of kenaf phloem bundle fibers. However, the effects of the used bundle fiber preparation method or cultivation year on the fiber's mechanical properties were more pronounced than those of the type of kenaf germplasm or breeding operation used. The mechanical properties of kenaf phloem bundle fibers treated by chemical retting were superior to those treated using natural retting.

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