Phase behaviour of chemically tailored cellulose nanocrystals and their appealing potential as invisible-ink for anti-counterfeiting

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD Cellulose Pub Date : 2024-11-27 DOI:10.1007/s10570-024-06306-9

Shiva Singh, Shakshi Bhardwaj, Dakuri Ramakanth, Radheesh Sharma Meda, Somya Jain, Kaushik Ghosh, Pradip K. Maji

{"title":"Phase behaviour of chemically tailored cellulose nanocrystals and their appealing potential as invisible-ink for anti-counterfeiting","authors":"Shiva Singh, Shakshi Bhardwaj, Dakuri Ramakanth, Radheesh Sharma Meda, Somya Jain, Kaushik Ghosh, Pradip K. Maji","doi":"10.1007/s10570-024-06306-9","DOIUrl":null,"url":null,"abstract":"<div><p>Cellulose nanocrystals (CNCs) have the potential to be used as functional hybrid composite materials derived from biological sources. CNCs possess a rod-like structure and surface functionality that allows for chemical modifications. These chemically modified CNCs exhibit liquid-crystalline phases, although their phase behavior has received less attention in research. For this study, we examined CNCs derived from waste lignocellulosic mass. We subjected them to chemical modification using maleic anhydride (MA) at a degree of substitution of 0.39 molecules of MA per glucose unit. The surface modification was confirmed using spectroscopic techniques. The diameter of CNCs that underwent MA tuning was decreased from the original size of 23.8–15.4 nm. The phase behavior of the modified MACNCs was thoroughly examined and showed a biphasic pattern until reaching a concentration of 9.65 × 10<sup>7</sup> nm<sup>−3</sup>. Furthermore, an assessment was conducted on the thermal stability of the prepared MACNCs, and a modeling approach was used to determine the thermal degradation kinetics. These MACNCs were used as a subtle pigment on paper through screen printing, stamping, and pen techniques. This type of aqueous ink is highly valuable for protecting books, drafts, and banknotes from counterfeiting.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 1","pages":"447 - 465"},"PeriodicalIF":4.9000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cellulose","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10570-024-06306-9","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}

引用次数: 0

Abstract

Cellulose nanocrystals (CNCs) have the potential to be used as functional hybrid composite materials derived from biological sources. CNCs possess a rod-like structure and surface functionality that allows for chemical modifications. These chemically modified CNCs exhibit liquid-crystalline phases, although their phase behavior has received less attention in research. For this study, we examined CNCs derived from waste lignocellulosic mass. We subjected them to chemical modification using maleic anhydride (MA) at a degree of substitution of 0.39 molecules of MA per glucose unit. The surface modification was confirmed using spectroscopic techniques. The diameter of CNCs that underwent MA tuning was decreased from the original size of 23.8–15.4 nm. The phase behavior of the modified MACNCs was thoroughly examined and showed a biphasic pattern until reaching a concentration of 9.65 × 10⁷ nm⁻³. Furthermore, an assessment was conducted on the thermal stability of the prepared MACNCs, and a modeling approach was used to determine the thermal degradation kinetics. These MACNCs were used as a subtle pigment on paper through screen printing, stamping, and pen techniques. This type of aqueous ink is highly valuable for protecting books, drafts, and banknotes from counterfeiting.

Graphical abstract

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

化学定制纤维素纳米晶体的相行为及其作为防伪隐形墨水的诱人潜力

纤维素纳米晶体（CNCs）具有作为生物来源的功能性杂化复合材料的潜力。cnc具有棒状结构和允许化学修饰的表面功能。这些化学修饰的cnc表现为液晶相，尽管它们的相行为在研究中受到的关注较少。在这项研究中，我们研究了从废弃木质纤维素中提取的cnc。我们用马来酸酐（MA）对它们进行化学改性，每葡萄糖单位取代0.39分子MA。用光谱技术证实了表面改性。经过MA调谐的cnc的直径从原来的23.8 ~ 15.4 nm减小。在达到9.65 × 107 nm−3浓度之前，改性的macnc的相行为表现为双相模式。此外，对制备的macnc的热稳定性进行了评估，并采用建模方法确定了热降解动力学。通过丝网印刷、冲压和钢笔技术，这些macnc被用作纸张上的微妙颜料。这种水性油墨在保护书籍、汇票和纸币免遭伪造方面具有很高的价值。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.