High-Performance Multiscale LNPs from Black Liquor as Repulpable Paper Coatings with Enhanced Water, Oil, and Vapor Resistance.

IF 5.5 2区化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY

Biomacromolecules Pub Date : 2025-04-02 DOI:10.1021/acs.biomac.5c00005

Wen Chen, Zhenyu Zhou, Dahang Zha, Ruihao Zhang, Ren'ai Li, Yunfeng Cao, Zhulan Liu, Huining Xiao

{"title":"High-Performance Multiscale LNPs from Black Liquor as Repulpable Paper Coatings with Enhanced Water, Oil, and Vapor Resistance.","authors":"Wen Chen, Zhenyu Zhou, Dahang Zha, Ruihao Zhang, Ren'ai Li, Yunfeng Cao, Zhulan Liu, Huining Xiao","doi":"10.1021/acs.biomac.5c00005","DOIUrl":null,"url":null,"abstract":"Technical lignin in alkaline pulping black liquor is usually combusted for energy in a soda recovery unit. To improve resource utilization, multiscale lignin nanoparticles (LNPs) were acid precipitated from black liquor and combined with gelatinized starch (SS) to produce a series of uniformly mixed surface coating agents to enhance the barrier properties of paper materials including water, oil, and water vapor resistance. The coating with 20%SS and 50%LNPs (based on oven-dried SS) with a diameter of 276 nm could significantly improve the barrier properties of the coated paper. Cobb 60 decreased by 79.6% from 67.98 to 13.86 g/m2, Kit rating improved from 0 to 10, and water vapor transmission reduced from ≥3000 to 441.69 g/m2·day. The coated paper presented superior mechanical properties, thermal stability, repulpability, and biodegradability. This work provides an effective strategy for the high-value application of pulping black liquor and holds promise for paper-based packaging.","PeriodicalId":30,"journal":{"name":"Biomacromolecules","volume":" ","pages":""},"PeriodicalIF":5.5000,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomacromolecules","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.biomac.5c00005","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Technical lignin in alkaline pulping black liquor is usually combusted for energy in a soda recovery unit. To improve resource utilization, multiscale lignin nanoparticles (LNPs) were acid precipitated from black liquor and combined with gelatinized starch (SS) to produce a series of uniformly mixed surface coating agents to enhance the barrier properties of paper materials including water, oil, and water vapor resistance. The coating with 20%SS and 50%LNPs (based on oven-dried SS) with a diameter of 276 nm could significantly improve the barrier properties of the coated paper. Cobb 60 decreased by 79.6% from 67.98 to 13.86 g/m², Kit rating improved from 0 to 10, and water vapor transmission reduced from ≥3000 to 441.69 g/m²·day. The coated paper presented superior mechanical properties, thermal stability, repulpability, and biodegradability. This work provides an effective strategy for the high-value application of pulping black liquor and holds promise for paper-based packaging.

查看原文本刊更多论文

从黑液中提取的高性能多尺度LNPs作为可重复造纸涂料，具有增强的耐水、耐油和抗蒸汽性。

碱法制浆黑液中的工艺木质素通常在碱回收装置中燃烧以获取能量。为了提高资源利用率，从黑液中酸沉淀出多尺度木质素纳米颗粒（LNPs），并与糊化淀粉（SS）结合，制备了一系列均匀混合的表面涂布剂，以提高纸张材料的水、油和水蒸气阻隔性能。采用直径为276 nm的20%SS和50%LNPs（基于烘干SS）涂层可以显著改善涂布纸的阻隔性能。Cobb 60从67.98 g/m2下降到13.86 g/m2， Kit等级从0提高到10，水蒸气透过率从≥3000 g/m2·d下降到441.69 g/m2·d。涂布纸具有优异的机械性能、热稳定性、可重复性和生物降解性。本研究为制浆黑液的高价值应用提供了有效的策略，并为纸制品包装提供了前景。

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分钟内获得全文求助全文

来源期刊

Biomacromolecules 化学-高分子科学

CiteScore

10.60

自引率

4.80%

发文量

417

审稿时长

1.6 months

期刊介绍： Biomacromolecules is a leading forum for the dissemination of cutting-edge research at the interface of polymer science and biology. Submissions to Biomacromolecules should contain strong elements of innovation in terms of macromolecular design, synthesis and characterization, or in the application of polymer materials to biology and medicine. Topics covered by Biomacromolecules include, but are not exclusively limited to: sustainable polymers, polymers based on natural and renewable resources, degradable polymers, polymer conjugates, polymeric drugs, polymers in biocatalysis, biomacromolecular assembly, biomimetic polymers, polymer-biomineral hybrids, biomimetic-polymer processing, polymer recycling, bioactive polymer surfaces, original polymer design for biomedical applications such as immunotherapy, drug delivery, gene delivery, antimicrobial applications, diagnostic imaging and biosensing, polymers in tissue engineering and regenerative medicine, polymeric scaffolds and hydrogels for cell culture and delivery.