干燥对自组装纤维素纳米晶制备马铃薯淀粉生物纳米复合膜力学性能的影响

M. Rashid, J. Sharif, M. Ashaduzzaman
{"title":"干燥对自组装纤维素纳米晶制备马铃薯淀粉生物纳米复合膜力学性能的影响","authors":"M. Rashid, J. Sharif, M. Ashaduzzaman","doi":"10.34104/ajpab.020.01290138","DOIUrl":null,"url":null,"abstract":"Composites films with higher mechanical properties from naturally occurring degradable materials are of present demand to achieve goals of sustainable development. Interaction within composite constituents during drying controls mechanical properties. Here, bio-nanocomposites films were first prepared from cellulose nanocrystals synthesized from jute fibres and extracted potato starch with the same chemical formulations. The filler, nanocrystals consist of nanorod-like cellulose particles obtained as an aqueous suspension by sulfuric acid (H2SO4) hydrolysis of jute fibres and the matrix was prepared by plasticization of potato starch after disruption of starch granules with water and glycerin. Nanocomposite films were obtained by casting the homogeneous aqueous suspension at 95oC and followed by natural drying (atmospheric drying, 25oC) and oven drying at 40oC. The thickness of the bio-nanocomposites film about 250 μm was controlled by using a 2 mm thick structural glass frame. It is revealed that with increasing the percentage of cellulose nanocrystals in composite films, mechanical properties corresponding to tensile strength and Young’s modulus were increased significantly. The film containing the highest quantity of cellulose nanocrystals (20% w/w of starch) revealed better properties in case of natural drying (tensile strength 84.2 MPa, Young’s modulus 0.563 GPa, elongation at break 27%) than the film properties (tensile strength 35.2 MPa, Young’s modulus 0.423 GPa, elongation at break 20%) of oven drying.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Drying Effect on Mechanical Properties of Bio-nanocomposite Films Fabricated from Self-assembled Cellulose Nanocrystals into Potato Starch\",\"authors\":\"M. Rashid, J. Sharif, M. Ashaduzzaman\",\"doi\":\"10.34104/ajpab.020.01290138\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Composites films with higher mechanical properties from naturally occurring degradable materials are of present demand to achieve goals of sustainable development. Interaction within composite constituents during drying controls mechanical properties. Here, bio-nanocomposites films were first prepared from cellulose nanocrystals synthesized from jute fibres and extracted potato starch with the same chemical formulations. The filler, nanocrystals consist of nanorod-like cellulose particles obtained as an aqueous suspension by sulfuric acid (H2SO4) hydrolysis of jute fibres and the matrix was prepared by plasticization of potato starch after disruption of starch granules with water and glycerin. Nanocomposite films were obtained by casting the homogeneous aqueous suspension at 95oC and followed by natural drying (atmospheric drying, 25oC) and oven drying at 40oC. The thickness of the bio-nanocomposites film about 250 μm was controlled by using a 2 mm thick structural glass frame. It is revealed that with increasing the percentage of cellulose nanocrystals in composite films, mechanical properties corresponding to tensile strength and Young’s modulus were increased significantly. The film containing the highest quantity of cellulose nanocrystals (20% w/w of starch) revealed better properties in case of natural drying (tensile strength 84.2 MPa, Young’s modulus 0.563 GPa, elongation at break 27%) than the film properties (tensile strength 35.2 MPa, Young’s modulus 0.423 GPa, elongation at break 20%) of oven drying.\",\"PeriodicalId\":214462,\"journal\":{\"name\":\"American Journal of Pure and Applied Biosciences\",\"volume\":\"3 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"American Journal of Pure and Applied Biosciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.34104/ajpab.020.01290138\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Journal of Pure and Applied Biosciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.34104/ajpab.020.01290138","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

利用天然可降解材料制备具有较高力学性能的复合薄膜是实现可持续发展目标的迫切需要。干燥过程中复合材料成分之间的相互作用控制着机械性能。在这里,生物纳米复合薄膜首先是由黄麻纤维合成的纤维素纳米晶体和以相同的化学配方提取的马铃薯淀粉制备的。填料纳米晶体由黄麻纤维经硫酸(H2SO4)水解得到的纳米棒状纤维素颗粒作为水悬浮液组成,基质由淀粉颗粒被水和甘油破坏后的马铃薯淀粉塑化而成。在95℃下浇铸均匀的水悬浮液,然后进行自然干燥(25℃常压干燥)和40℃烘箱干燥,得到纳米复合膜。采用2 mm厚的结构玻璃框架控制生物纳米复合材料膜的厚度约为250 μm。结果表明,随着纤维素纳米晶在复合膜中所占比例的增加,复合膜的抗拉强度和杨氏模量等力学性能显著提高。纤维素纳米晶含量最高的薄膜(20% w/w淀粉)在自然干燥条件下的性能(抗拉强度84.2 MPa,杨氏模量0.563 GPa,断裂伸长率27%)优于烘箱干燥条件下的性能(抗拉强度35.2 MPa,杨氏模量0.423 GPa,断裂伸长率20%)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Drying Effect on Mechanical Properties of Bio-nanocomposite Films Fabricated from Self-assembled Cellulose Nanocrystals into Potato Starch
Composites films with higher mechanical properties from naturally occurring degradable materials are of present demand to achieve goals of sustainable development. Interaction within composite constituents during drying controls mechanical properties. Here, bio-nanocomposites films were first prepared from cellulose nanocrystals synthesized from jute fibres and extracted potato starch with the same chemical formulations. The filler, nanocrystals consist of nanorod-like cellulose particles obtained as an aqueous suspension by sulfuric acid (H2SO4) hydrolysis of jute fibres and the matrix was prepared by plasticization of potato starch after disruption of starch granules with water and glycerin. Nanocomposite films were obtained by casting the homogeneous aqueous suspension at 95oC and followed by natural drying (atmospheric drying, 25oC) and oven drying at 40oC. The thickness of the bio-nanocomposites film about 250 μm was controlled by using a 2 mm thick structural glass frame. It is revealed that with increasing the percentage of cellulose nanocrystals in composite films, mechanical properties corresponding to tensile strength and Young’s modulus were increased significantly. The film containing the highest quantity of cellulose nanocrystals (20% w/w of starch) revealed better properties in case of natural drying (tensile strength 84.2 MPa, Young’s modulus 0.563 GPa, elongation at break 27%) than the film properties (tensile strength 35.2 MPa, Young’s modulus 0.423 GPa, elongation at break 20%) of oven drying.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信