Postgraduate Institute of Science, University of Peradeniya, Peradeniya, 20400, Sri Lanka.
Department of Zoology and Environmental Sciences, Faculty of Science, University of Colombo, Colombo, Sri Lanka.
Carbohydr Polym. 2020 Aug 1;241:116227. doi: 10.1016/j.carbpol.2020.116227. Epub 2020 May 15.
The paper presents a novel candidate plant: Pandanus ceylanicus (PC) for cellulose extraction. The plant showed an average of 91.5 ± 0.2 % of cellulose yield which is the highest yield for Pandanus species reported. Cellulose was extracted from the leaves of the plant by carrying out alkali and bleaching treatments, and cellulose microcrystals (CMC) were isolated from extracted cellulose fibers with sulphuric acid treatment. Chemical composition of PC leaves was investigated at different stages of treatment by using TAPPI standard methods. The extracted globular shaped CMC crystals had an average diameter less than a micro meter. Results revealed that PC leaves are an efficient source of micro-cellulose which result in a high yield than most lignocellulosic biomasses. The CMCs were successfully incorporated with nylon 6,10 by in-situ interfacial polymerization of sebacoyl chloride and hexamethylenediamine in the presence of CMC. The CMC/nylon 6,10 composite showed improved water absorption with low water retention time.
海巴戟（PC），可用于纤维素提取。该植物的纤维素得率平均为 91.5±0.2%，是已报道的海巴戟属植物中得率最高的。通过进行碱处理和漂白处理，从该植物的叶片中提取纤维素，并通过硫酸处理从提取的纤维素纤维中分离出纤维素微晶（CMC）。采用 TAPPI 标准方法研究了 PC 叶片在不同处理阶段的化学成分。提取出的球形 CMC 晶体的平均直径小于一微米。结果表明，PC 叶片是一种高效的微纤维素来源，其产率高于大多数木质纤维素生物质。CMC 成功地与尼龙 6,10 通过在 CMC 存在下的癸二酰氯和己二胺的原位界面聚合进行了复合。CMC/尼龙 6,10 复合材料表现出改善的吸水性和低的保水时间。
