Nordic Pulp & Paper Research Journal最新文献_第2页

Biobased nanocomposite coating of paper for packaging 生物基纳米复合包装纸涂层

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-27 DOI: 10.1515/npprj-2024-0034

Md. Nakib Hossen, M. Mostafizur Rahman, Taslima Ferdous, Jannatun Nayeem, M. Sarwar Jahan

{"title":"Biobased nanocomposite coating of paper for packaging","authors":"Md. Nakib Hossen, M. Mostafizur Rahman, Taslima Ferdous, Jannatun Nayeem, M. Sarwar Jahan","doi":"10.1515/npprj-2024-0034","DOIUrl":"https://doi.org/10.1515/npprj-2024-0034","url":null,"abstract":"Biobased coating material is required to replace synthetic polymer-based paper coating material for a safe and clean environment. The study aimed to investigate the use of biobased nanocomposites as a coating material for paper. The biobased nanocomposite was prepared using nanocellulose, sodium alginate (SA), and bio-synthesized silver nanoparticles (AgNPs). Nanocrystalline cellulose (NCC) was produced through acid hydrolysis, followed by fractionation. The average size of the crystals was 15 nm in width and 125 nm in length. AgNPs were prepared by the reduction of AgNO3 with lignin. The synthesis of silver nanoparticles was confirmed by UV–visible and FTIR spectroscopy. SA-NCC composite coating improved the barrier and strength properties of paper. The paper with composite coating demonstrated a 29.11 % increase in tensile index in the cross direction, 20.82 % increase in the machine direction, and 77.89 % improvement in burst index at a coating weight of 1.68 g/m2. The composite-coated paper showed better air barrier and lower water absorption characteristics than sodium alginate-coated paper. The incorporation of AgNPs in the coating mixture introduced the antimicrobial activity of the paper as well.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"9 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of oxygen delignified fibers with high water absorbency, as a greener alternative to fully bleached fibers for tissue paper 评估具有高吸水性的氧气脱木素纤维，作为纸巾用全漂白纤维的绿色替代品

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-26 DOI: 10.1515/npprj-2024-0024

Cláudia V.G. Esteves

{"title":"Evaluation of oxygen delignified fibers with high water absorbency, as a greener alternative to fully bleached fibers for tissue paper","authors":"Cláudia V.G. Esteves","doi":"10.1515/npprj-2024-0024","DOIUrl":"https://doi.org/10.1515/npprj-2024-0024","url":null,"abstract":"The potential of oxygen delignified fibers to replace fully bleached fibers in tissue products was investigated on softwood pulps. The absorption, mechanical properties and softness of laboratory tissue hand sheets from one commercial fully bleached pulp and five unbleached oxygen delignified lab pulps were compared. The pulps with different lignin content and total fiber charge were evaluated with and without PFI refining. The pulps subjected to oxygen delignification resulted in pulps with much higher total fiber charge content that led to higher swelling and higher wet strength when compared to the commercial fully bleached pulp. Some unbleached oxygen delignified pulps showed great potential in the absorption capacity, while others showed a much higher wet tensile strength when compared to the commercial pulp. Compared to the commercial bleached pulp, a similar softness for a higher wet and dry tensile index in the unbleached fibers was observed for the oxygen delignified pulps. Unbleached pulps subjected to an extended oxygen delignification proved to be a suitable alternative to fully bleached pulps in tissue grades, depending on the desired property (absorption or wet strength).","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of xylan-modified precipitated calcium carbonate filler on the properties of paper 木聚糖改性沉淀碳酸钙填料对纸张性能的影响

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-23 DOI: 10.1515/npprj-2024-0042

Onur Unlu, Ayse Aytac

{"title":"Effects of xylan-modified precipitated calcium carbonate filler on the properties of paper","authors":"Onur Unlu, Ayse Aytac","doi":"10.1515/npprj-2024-0042","DOIUrl":"https://doi.org/10.1515/npprj-2024-0042","url":null,"abstract":"The use of mineral-based fillers tends to reduce the mechanical properties of paper, which can limit their application. The filler surface modification is a significant treatment to overcome this limitation. This research aims to offer a novel modified mineral-based filler to provide its industrial application. The surface of precipitated calcium carbonate (PCC) was modified with xylan (XS), which is a type of hemicellulose, a polysaccharide consisting mainly of xylose residues. It is used as a filler at different filler dosage levels in paper pulp. Modified PCC(MPCC) was characterized with Fourier transform infrared spectroscopy, Thermogravimetric analysis, X-ray photoelectron spectroscopy, X-ray diffraction and Field-emission scanning electron microscopy analyses. The analysis demonstrated that the MPCC filler surface was coated with XS successfully. The effect of PCC and MPCC-filled hand-sheet paper physical, chemical and optical properties were studied. The experimental results showed that the mechanical (tensile, burst, tear strength) and optical (brightness, opacity) of hand-sheet paper filled with MPCC were significantly improved compared with unmodified PCC-filled paper at the same ash content. The filler retention of PCC and MPCC fillers in paper was investigated, and the MPCC filler showed better filler retention properties in paper stock than the PCC filler.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"15 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

UV–vis spectroscopy as a rapid method for evaluation of total phenolic hydroxyl structures in lignin 紫外可见光谱法作为一种快速评估木质素中总酚羟基结构的方法

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-15 DOI: 10.1515/npprj-2023-0095

Nataliia Smyk, Jenny Sjöström, Gunnar Henriksson, Olena Sevastyanova

{"title":"UV–vis spectroscopy as a rapid method for evaluation of total phenolic hydroxyl structures in lignin","authors":"Nataliia Smyk, Jenny Sjöström, Gunnar Henriksson, Olena Sevastyanova","doi":"10.1515/npprj-2023-0095","DOIUrl":"https://doi.org/10.1515/npprj-2023-0095","url":null,"abstract":"Phenolic hydroxyl groups in lignin are crucial for understanding its structure, reactivity, and potential applications. Various methods have been developed for the determining phenolic groups in lignin. This study focuses on the comparison of a simple, cost-effective, and time-efficient UV–vis ionization difference technique with the highly accurate 31P NMR spectroscopy for analyzing lignin samples of different origins and isolation methods. The results were carefully evaluated, and the strengths and limitations of each method were discussed. Two eco-friendly UV–vis approaches were proposed for a rapid and comprehensive evaluation of the total phenolic-OH groups: one using a strong alkaline solution for analyzing common types of technical lignins, and another employing multipoint wavelength calculations, effective for analyzing softwood lignins regardless of the extraction method. Additionally, the research highlighted the importance of selecting appropriate model phenolic compounds to accurately assess the phenolic hydroxyl group content in lignins using the UV–vis method. Offering straightforward and rapid analysis, with results closely aligning with 31P NMR data, this method is a promising alternative for routine analysis.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"110 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of surfactants on the wettability of sodium propionate aqueous deacidification agent 表面活性剂对丙酸钠水溶液脱酸剂润湿性的影响

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-15 DOI: 10.1515/npprj-2023-0038

Ge Ge, Jianan Liu, Yunfei Liao, Deli Zeng, Hongyan Mou, Huiming Fan

{"title":"Effects of surfactants on the wettability of sodium propionate aqueous deacidification agent","authors":"Ge Ge, Jianan Liu, Yunfei Liao, Deli Zeng, Hongyan Mou, Huiming Fan","doi":"10.1515/npprj-2023-0038","DOIUrl":"https://doi.org/10.1515/npprj-2023-0038","url":null,"abstract":"To address the challenges of difficulty and low penetration speed of aqueous deacidification agents in paper, we aimed to enhance the wetting performance of these agents by incorporating a surfactant. We selected four surfactants for our study: anionic sodium dodecyl benzene sulfonate (SDBS), cationic cetyltrimethylammonium bromide (CTAB), nonionic polysorbate-80 (TW80), and polyether-modified trisiloxane (TRSE). The wetting properties of these surfactants on sodium propionate aqueous deacidification agent, the alkali stability of the solution, and the effects of moist heat aging on paper durability were explored. The results demonstrated that TRSE exhibited superior performance compared to the other three surfactants, effectively reducing the surface tension of sodium propionate solution to 21.02 mN/m. In alkaline conditions with a pH range of 8.00–10.00, the surface tension of SDBS, CTAB, and TW80 solutions remained stable for 30 days. Similarly, under weakly alkaline conditions with a pH value below 9, the surface tension of TRSE solutions exhibited stability. It should be noted that SDBS accelerated the decline of paper tensile index and whiteness during the heat and humidity aging process; at the same time, CTAB, TW80, and TRSE had no noticeable adverse effects on paper aging resistance.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"172 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid solar drying of sludge from kraft pulp mills 混合太阳能干燥牛皮纸浆厂污泥

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-05 DOI: 10.1515/npprj-2023-0094

Lindomar Matias Gonçalves, Clara Mendoza-Martinez, Jesús Nuncira, Elém Patrícia Alves Rocha, Eduardo Coutinho de Paula, Marcelo Cardoso

{"title":"Hybrid solar drying of sludge from kraft pulp mills","authors":"Lindomar Matias Gonçalves, Clara Mendoza-Martinez, Jesús Nuncira, Elém Patrícia Alves Rocha, Eduardo Coutinho de Paula, Marcelo Cardoso","doi":"10.1515/npprj-2023-0094","DOIUrl":"https://doi.org/10.1515/npprj-2023-0094","url":null,"abstract":"Sludge generated from kraft pulp mill wastewater treatment plants (WWTPs) is typically non-inert solid waste and is commonly disposed of in landfills. In this study, a novel approach for repurposing WWTP sludge from a kraft pulp mill in Brazil for energy generation was assessed. With the global cellulose market projected to reach $ 61 billion by 2033, there is a growing need for sustainable energy solutions and disposal of associated industrial byproducts. This study investigated the performance of a hybrid active solar dryer for reducing the moisture content of sludge to enhance the feasibility of sludge burning in a biomass boiler. Through rigorous experimentation and design of experiments (DOE) planning, optimal parameters for the hybrid dryer were determined, specifically, a volumetric airflow rate of 1.1 m/s and an entrance temperature of approximately 51 °C. This innovative approach not only addresses the environmental concerns associated with sludge disposal, but also contributes to the broader goal of advancing sustainable technologies in the midst of global energy challenges.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"48 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141949117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The study of citric acid crosslinked β-cyclodextrin/hydroxypropyl cellulose food preservation film 柠檬酸交联β-环糊精/羟丙基纤维素食品保鲜膜的研究

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-05 DOI: 10.1515/npprj-2023-0088

Yefan Wang, Ting Wang, Xinyu Zhang, Qian Wang, Sheng Liu, Zhihua Guo, Haitang Liu

{"title":"The study of citric acid crosslinked β-cyclodextrin/hydroxypropyl cellulose food preservation film","authors":"Yefan Wang, Ting Wang, Xinyu Zhang, Qian Wang, Sheng Liu, Zhihua Guo, Haitang Liu","doi":"10.1515/npprj-2023-0088","DOIUrl":"https://doi.org/10.1515/npprj-2023-0088","url":null,"abstract":"In this study, hydroxypropyl cellulose (HPC) was utilized as the raw material, with the addition of β-cyclodextrin (β-CD), citric acid (CA) as the crosslinking agent, and sodium hypophosphite (SHP) as the catalyst to produce hydroxypropyl cellulose/β-CD composite films. The inclusion of β-CD resulted in an increase in the tensile strength of the film, with the maximum value of 13.5 MPa for the 1 % β-CD composite membrane. Additionally, after degradation in soil for 28 days, the degradation ability was significantly enhanced, with the 1.0 % β-CD composite film exhibiting the highest degradation rate of 27.21 %. Furthermore, the water permeability of the composite membrane was improved with the addition of β-CD. Specifically, when the β-CD content was 1.0 %, the water vapor transmission reached its lowest point at 2,445 g* <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\"> <m:mrow> <m:msup> <m:mrow> <m:mo>(</m:mo> <m:msup> <m:mi>m</m:mi> <m:mn>2</m:mn> </m:msup> <m:mrow> <m:mo>*</m:mo> <m:mn>24</m:mn> <m:mi>d</m:mi> </m:mrow> <m:mo>)</m:mo> </m:mrow> <m:mrow> <m:mo>−</m:mo> <m:mn>1</m:mn> </m:mrow> </m:msup> </m:mrow> </m:math> ${({m}^{2}ast 24d)}^{-1}$ . The findings demonstrated that the 1 % β-cyclodextrin/hydroxypropyl cellulose composite film effectively preserved the freshness of strawberries, reducing the weight loss rate by 1.65 % compared to the control group. In conclusion, this research highlights the potential for preparing composite membranes using HPC and β-CD crosslinking, thereby expanding the application of hydroxypropyl cellulose and β-CD in food preservation.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"74 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141949112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparing the in-plane shear moduli of cardboard measured by flexural vibration, torsional vibration, static torsion, off-axis vibration, and off-axis tension tests 通过挠曲振动、扭转振动、静态扭转、离轴振动和离轴拉伸试验测量的纸板平面内剪切模量比较

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-07-22 DOI: 10.1515/npprj-2023-0087

Hiroshi Yoshihara, Masahiro Yoshinobu, Makoto Maruta

引用次数: 0

Multi-objective optimization design of a circular core paper sandwich panel 圆芯纸质夹芯板的多目标优化设计

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-07-22 DOI: 10.1515/npprj-2024-0020

Xiawang Jiang, Shihao Zhang, Minggong Yu, Delin Sun

{"title":"Multi-objective optimization design of a circular core paper sandwich panel","authors":"Xiawang Jiang, Shihao Zhang, Minggong Yu, Delin Sun","doi":"10.1515/npprj-2024-0020","DOIUrl":"https://doi.org/10.1515/npprj-2024-0020","url":null,"abstract":"Ensuring sufficient mechanical performance while enabling lightweight design is critical for utilizing paper sandwich panels in the furniture industry. To design lightweight sandwich panels that balance mechanical properties and cost, this study developed a circular core paper sandwich panel (CCPSP) and investigated its structural efficiency using multi-objective optimization. The response surface method (RSM) based on Box–Behnken design was utilized to establish mathematical models relating the paper tube spacing, inner diameter, and height to the out-of-plane compressive strength, density, and cost. The resulting models effectively revealed the coupled effects of the parameters on the responses. Subsequently, the models were optimized using the non-dominated sorting genetic algorithm II (NSGA-II) to find the Pareto optimal trade-offs between maximizing compressive strength while minimizing its density and cost. The optimization solution resulted in an optimal set of paper tube geometries that maximized the structural efficiency of CCPSP. Overall, lower tube height conferred superior structural efficiency, while tube spacing and diameter were constrained. The results highlight the potential of CCPSP as an efficient and sustainable material for furniture manufacturing, enabled by multi-objective optimization of its structure.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"20 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141776156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative study of thermal barrier models for paper-based barrier materials using adaptive neuro-fuzzy inference system 利用自适应神经模糊推理系统对纸质隔热材料的隔热模型进行定量研究

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-07-19 DOI: 10.1515/npprj-2023-0072

Zi`ang Xia, Long Wang, Chaojie Li, Xue Li, Jingxue Yang, Baoming Xu, Na Wang, Yao Li, Heng Zhang

{"title":"Quantitative study of thermal barrier models for paper-based barrier materials using adaptive neuro-fuzzy inference system","authors":"Zi`ang Xia, Long Wang, Chaojie Li, Xue Li, Jingxue Yang, Baoming Xu, Na Wang, Yao Li, Heng Zhang","doi":"10.1515/npprj-2023-0072","DOIUrl":"https://doi.org/10.1515/npprj-2023-0072","url":null,"abstract":"A composite silicone emulsion-biomass polymer paper-based barrier coating material with high barrier performance was prepared by double-layer coating, and the material was tested for oil repellency. The composition-structure-property data set of the paper-based barrier materials was constructed based on the experimental data. An adaptive neuro-fuzzy inference system (ANFIS) was used to construct a prediction model of the coating structure in high-temperature environments to achieve quantitative analysis of the barrier performance in high-temperature environments. The ANFIS prediction model was constructed based on two algorithms, the grid partitioning algorithm and the subtractive clustering algorithm, and the accuracy of the model determined by the two algorithms was compared for training, validation and testing of this experimental data. The results showed that the prediction model of the grid partitioning method had a better fit with the experimental data, with a root mean square error (RMSE) value of 7.00383 and a R-squared (R 2) of 0.9644 between the model prediction data and the actual data.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"81 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141737082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0