-
摘要: 参考了国家木材物理性能和造纸原料化学组分分析标准,对大麻Cannabis sativa秆芯的主要物理性能和化学组分进行分析。结果显示,大麻秆芯壁和秆芯的气干密度分别为0.240 gcm-3和0.193 gcm-3;大麻秆芯壁的弦向气干干缩率为5.68%,大麻秆芯的弦向气干干缩率为7.37%;大麻秆芯壁和秆芯的吸水率都随时间递增,12 d后基本达吸水平衡;大麻秆芯的综纤维素质量分数为799.1 gkg-1,酸不溶木质素质量分数为191.6 gkg-1,热水抽提物、冷水抽提物、苯醇抽提物、10 gkg-1氢氧化钠抽提物质量分数分别为56.6,42.6,57.2,308.1 gkg-1,灰分为14.8 gkg-1,水分为95.8 gkg-1。图2表5参7Abstract: With reference to the national standard for physical and chemical properties of wood and the raw material for paper,the main physical and mechanical properties of a hemp core were analyzed. Results showed that the air-dry density of the hemp core wall was 0.240 gcm-3;whereas the hemp core was 0.193 gcm-3;the air-dried tangential shrinkage ratio for the hemp core wall was 5.68%,but for the hemp core it was 7.37%. Water absorption for the hemp core and the hemp core wall increased over time maintaining a balance for up to 12 d. Additionally,holocellulose of the hemp core was 799.1 gkg-1,the acid insoluble lignin was 191.6 gkg-1,the hot water extractive was 56.6 gkg-1,the cold water extractive was 42.6 gkg-1,and the benzene and alcohol extractive was 57.2 gkg-1. Also,the 10.0 gkg-1 NaOH extractive was 308.1 gkg-1,the ash content was 14.8 gkg-1,and the moisture content was 95.8 gkg-1.[Ch,2 fig. 5 tab. 7 ref.]
-
Key words:
- forest engineering /
- hemp core /
- physical property /
- chemical composition
-
链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2010.05.026
计量
- 文章访问数: 4289
- HTML全文浏览量: 182
- PDF下载量: 1304
- 被引次数: 0