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首页> 外文期刊>繊維学会誌 >Chemical and Physical Characteristics of Cellulosic Materials Obtained from Kenaf (Hibiscus Cannabinus L.) Plants of Different Ages
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Chemical and Physical Characteristics of Cellulosic Materials Obtained from Kenaf (Hibiscus Cannabinus L.) Plants of Different Ages

机译：从不同年龄的红麻（红芙蓉）植物中获得的纤维素材料的化学和物理特性

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摘要

The chemical and physical characteristics of kenaf plants (Zhejiang No. 1 cultivar from China) grown in Japan, 1996 and their cellulosic materials of different plant ages were investigated, and their bast (outer bark) was compared with their inner core. The ash content of the bast and the core of the kenaf plant of different ages decreased with the plant aged, however, the percent of the holocellulose content for the bast and the core of the kenaf plants at different ages was almost constant, similar to the kenaf plants grown in U.S.A., though its weight was different. The alpha-cellulose content, the sorption of basic dye, the degree of polymerization and the birefringence for the bast pulp fibers were higher than those for the core pulp fibers, however, the content of lignin, hot water extract, 1% NaOH solution extract and carboxyl group for the bast fibers was lower than that for the core fibers. The content of the hot water extract and 1% NaOH solution extract for the bast and core fibers increased with plant ages. However, there were only slight effects of the kenaf plant ages and the differences between the bast and the core fibers on the moisture content, the sorption of direct dye, the crystallinity, the crystallite size and the orientation. Therefore, these results indicate that kenaf (Zhejiang No. 1) can be harvested at about 140-150 days in Japan.
机译：研究了1996年在日本生长的洋麻植物（中国浙江第一品种）的化学和物理特性，并研究了不同植物年龄的纤维素材料，并将其韧皮（外皮）与内芯进行了比较。随着年龄的增长，不同年龄的韧皮和洋麻植物核心的灰分含量降低，但是，不同年龄的韧皮和洋麻植物核心的全纤维素含量的百分比几乎恒定，类似于美国生长的洋麻植物虽然重量不同。韧皮纸浆纤维的α-纤维素含量，碱性染料的吸附，聚合度和双折射均高于芯纸浆纤维，但是木质素，热水提取物，1％NaOH溶液提取物的含量韧皮纤维的羧基低于芯纤维。韧皮和核心纤维的热水提取物和1％NaOH溶液提取物的含量随植物年龄的增长而增加。然而，洋麻植物的年龄以及韧皮和核心纤维之间的差异对水分含量，直接染料的吸附，结晶度，微晶尺寸和取向的影响很小。因此，这些结果表明在日本约140-150天可以收获红麻（浙江第一）。

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  • 来源
    《繊維学会誌》 |2003年第3期|p.87-92|共6页
  • 作者

    Namiko Miyata;

  • 作者单位

    Faculty of Human Development, Nakamura Gakuen University, Befu, Jyonan-ku, Fukuoka 814-0198 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学纤维工业;
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