Bamboo fiber-based water- and oil-proof cardboard with reversible thermochromic properties for fast food packaging

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-03-18 DOI:10.1016/j.porgcoat.2025.109236

Yulong Hu , Ruqiang Zhang , Meidan Liu , Yu Zhou , Mingyi Li , Feng Jiang , Youping Tang , Wenjun Li , Ling Yang , Zhu Long

{"title":"Bamboo fiber-based water- and oil-proof cardboard with reversible thermochromic properties for fast food packaging","authors":"Yulong Hu , Ruqiang Zhang , Meidan Liu , Yu Zhou , Mingyi Li , Feng Jiang , Youping Tang , Wenjun Li , Ling Yang , Zhu Long","doi":"10.1016/j.porgcoat.2025.109236","DOIUrl":null,"url":null,"abstract":"<div><div>The rapid development of street vendor economies has driven the popularity of fast food, mainly due to its inherent convenience. However, such foods are typically served at high temperatures, and existing packaging materials fail to allow consumers to effectively judge the temperature. This study developed thermochromic, water- and oil-proof cardboard specifically designed for fast food packaging. The coating, consisting of sodium alginate (SA), hydroxypropyl methylcellulose (HPMC), polyvinyl butyral (PVB), and ethyl cellulose (EC), was applied to the cardboard, coupled with a thermochromic material (TC) incorporating crystal violet lactone (CVL), bisphenol A (BPA), and stearyl alcohol. The resultant cardboard exhibited outstanding water- and oil-proof properties. The enhanced oil resistance was attributable to hydrogen bonding between SA and HMRC, as well as cross-linking between SA/HPMC and calcium ions (Ca<sup>2+</sup>) in the base paper. The PVB/EC coating further reinforced the cardboard's waterproofing and mechanical properties through additional hydrogen bonding. In thermochromic tests, the cardboard displayed a significant color change, transitioning from dark blue to colorless as the temperature increased from 30 °C to 55 °C. Overall, this research developed a bamboo-fiber-based food packaging cardboard with superior water- and oil-proof, and thermochromic properties.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109236"},"PeriodicalIF":6.5000,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Organic Coatings","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0300944025001857","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

The rapid development of street vendor economies has driven the popularity of fast food, mainly due to its inherent convenience. However, such foods are typically served at high temperatures, and existing packaging materials fail to allow consumers to effectively judge the temperature. This study developed thermochromic, water- and oil-proof cardboard specifically designed for fast food packaging. The coating, consisting of sodium alginate (SA), hydroxypropyl methylcellulose (HPMC), polyvinyl butyral (PVB), and ethyl cellulose (EC), was applied to the cardboard, coupled with a thermochromic material (TC) incorporating crystal violet lactone (CVL), bisphenol A (BPA), and stearyl alcohol. The resultant cardboard exhibited outstanding water- and oil-proof properties. The enhanced oil resistance was attributable to hydrogen bonding between SA and HMRC, as well as cross-linking between SA/HPMC and calcium ions (Ca²⁺) in the base paper. The PVB/EC coating further reinforced the cardboard's waterproofing and mechanical properties through additional hydrogen bonding. In thermochromic tests, the cardboard displayed a significant color change, transitioning from dark blue to colorless as the temperature increased from 30 °C to 55 °C. Overall, this research developed a bamboo-fiber-based food packaging cardboard with superior water- and oil-proof, and thermochromic properties.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.