Single agent, double effect: Grafting of soy protein isolate into low-migration self-initiating ultraviolet-curable polyacrylate wood coatings

IF 6.5 2区 材料科学 Q1 CHEMISTRY, APPLIED Progress in Organic Coatings Pub Date : 2025-03-14 DOI:10.1016/j.porgcoat.2025.109238
Jiaqi Su , Xuan Liu , Bo Wang , Tianyi Jin , Haoyuan Sun , Jinhui Wang , Kunxiang Xu , Zhenhua Gao , Shuangying Wei , Shuaiyuan Han
{"title":"Single agent, double effect: Grafting of soy protein isolate into low-migration self-initiating ultraviolet-curable polyacrylate wood coatings","authors":"Jiaqi Su ,&nbsp;Xuan Liu ,&nbsp;Bo Wang ,&nbsp;Tianyi Jin ,&nbsp;Haoyuan Sun ,&nbsp;Jinhui Wang ,&nbsp;Kunxiang Xu ,&nbsp;Zhenhua Gao ,&nbsp;Shuangying Wei ,&nbsp;Shuaiyuan Han","doi":"10.1016/j.porgcoat.2025.109238","DOIUrl":null,"url":null,"abstract":"<div><div>Benzophenone is a hydrogen-capturing small molecule photoinitiator and its migration in ultraviolet curing systems has been identified as a potential issue. In this study, soy protein isolate (SPI) was used as both the reactant and the hydrogen donor of the photoinitiator for free radical polymerization. Benzophenone-containing polyacrylate (PA) molecules were then grafted into SPI to achieve the self-initiation of the light-curing reaction. The SPI-benzophenone structure on the polymer chain formed a large-molecule photoinitiator system, in which bimolecular interactions occurred under UV irradiation to promote the low migration of the photoinitiator. A waterborne polyacrylate resin (PA-AHBP-SPI) suitable for wood coatings was prepared, and the detailed mechanism of reaction process was proposed. It was noticed that the PA-AHBP-SPI composite emulsion exhibited substantial UV absorption at 285 nm, with a maximum molar extinction coefficient of 27,387 L.mol<sup>−1</sup>.cm<sup>−1</sup>. The migration rate of the cured film was found to be only 17.68 % after 9 h of soaking in acetonitrile, and it demonstrated markedly low mobility. Under the optimal SPI content (4 g), the absorption of benzophenone photoinitiators is reduced three times to 29.74 %, the UV cure time of the film is reduced to 4.28 s and the tensile strength reaches 9.43 MPa.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109238"},"PeriodicalIF":6.5000,"publicationDate":"2025-03-14","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/S0300944025001870","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

Benzophenone is a hydrogen-capturing small molecule photoinitiator and its migration in ultraviolet curing systems has been identified as a potential issue. In this study, soy protein isolate (SPI) was used as both the reactant and the hydrogen donor of the photoinitiator for free radical polymerization. Benzophenone-containing polyacrylate (PA) molecules were then grafted into SPI to achieve the self-initiation of the light-curing reaction. The SPI-benzophenone structure on the polymer chain formed a large-molecule photoinitiator system, in which bimolecular interactions occurred under UV irradiation to promote the low migration of the photoinitiator. A waterborne polyacrylate resin (PA-AHBP-SPI) suitable for wood coatings was prepared, and the detailed mechanism of reaction process was proposed. It was noticed that the PA-AHBP-SPI composite emulsion exhibited substantial UV absorption at 285 nm, with a maximum molar extinction coefficient of 27,387 L.mol−1.cm−1. The migration rate of the cured film was found to be only 17.68 % after 9 h of soaking in acetonitrile, and it demonstrated markedly low mobility. Under the optimal SPI content (4 g), the absorption of benzophenone photoinitiators is reduced three times to 29.74 %, the UV cure time of the film is reduced to 4.28 s and the tensile strength reaches 9.43 MPa.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
二苯甲酮是一种氢捕获型小分子光引发剂,其在紫外线固化系统中的迁移已被确定为一个潜在问题。在这项研究中,大豆分离蛋白(SPI)既是自由基聚合反应的反应物,也是光引发剂的氢供体。然后将含苯甲酮的聚丙烯酸酯(PA)分子接枝到 SPI 中,以实现光固化反应的自引发。聚合物链上的 SPI-苯甲酮结构形成了一个大分子光引发剂体系,在紫外线照射下发生双分子相互作用,促进光引发剂的低迁移。制备了一种适用于木器涂料的水性聚丙烯酸酯树脂(PA-AHBP-SPI),并提出了反应过程的详细机理。结果表明,PA-AHBP-SPI 复合乳液在 285 纳米波长处有大量紫外线吸收,最大摩尔消光系数为 27,387 L.mol-1.cm-1。在乙腈中浸泡 9 小时后,发现固化薄膜的迁移率仅为 17.68%,流动性明显较低。在最佳 SPI 含量(4 克)下,二苯甲酮光引发剂的吸收率降低了三倍,达到 29.74%,薄膜的紫外固化时间缩短到 4.28 秒,拉伸强度达到 9.43 兆帕。
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
Progress in Organic Coatings
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.
期刊最新文献
Preparation of wood-based surface coatings with dual functions of flame retardancy and superhydrophobicity by sand-in method Smart anticounterfeiting approach: Mineral oil-free offset ink with fluorescent features and audio signal, detected using a customized combi-reader Eco-friendly ink formulations with acrylated epoxidized linseed oil binders: Balancing performance and sustainability Single agent, double effect: Grafting of soy protein isolate into low-migration self-initiating ultraviolet-curable polyacrylate wood coatings Impact of gradient nanocomposite coating design on the surface mechanical properties of soft composite substrate
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1