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Gao Y, Yang W, Yi W, Ni S, Fu Y, Qin M, Zhang F. Effect of molecular weight of PEI on the strength and hydrophobic performance of fiber-based papers via PEI-KH560 surface sizing. Int J Biol Macromol 2024; 273:133070. [PMID: 38866292 DOI: 10.1016/j.ijbiomac.2024.133070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/02/2024] [Accepted: 06/08/2024] [Indexed: 06/14/2024]
Abstract
In recent years, researchers have put much attention on the improvements and upgrades of novel wet strength agent in the papermaking fields, especially in the usage of household paper. Herein, PEIM-KH560 by polyethyleneimine (PEI) and γ-glycidyl ether propyl trimethoxysilane (KH560) was synthesized with five molecular weights (Mw) of PEI at 600, 1800, 10,000, 70,000 and 750,000. Results showed that the molecular weight greatly influenced the physicochemical properties of PEI-KH560, such as the size and thermal stability. The intrinsic cationic charge of PEI-KH560 provided the bonding sites with the paper fibers, forming strengthened fiber-fiber joints. It was shown that the dry, wet strength and hydrophobicity of cellulosic paper sheets were obviously improved. When the m (PEI):m(KH560) is 1:2, the strength of papers after sizing by Mw of PEI at 600 and 1800 is the most obvious, with the dry strength increased by 227.9 % and 187.5 %, and the wet strength increased by 183.8 % and 207.8 %, respectively. The maximum hydrophobicity was found at the PEI1800-KH560 with the contact angle value of 130.6°. The resultant environmental-friendly agent (PEI-KH560) obtained in this work provides valuable significance for the preparation of household and food packaging paper.
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Affiliation(s)
- Yali Gao
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Weisheng Yang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Wenbo Yi
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Shuzhen Ni
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Yingjuan Fu
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Menghua Qin
- College of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250200, China
| | - Fengshan Zhang
- Shandong Huatai Paper Co., Ltd. & Shandong Yellow Triangle Biotechnology Industry Research Institute Co. LTD, China.
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Zhou Y, Huang Q, Wang L, Wang X. Enhancing Cross-Linking Network for Superior Wet Strength of Paper by Sustainable Hyperbranched Polyimines. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38494606 DOI: 10.1021/acsami.4c01403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
The paper industry has long been a crucial part of our lives, providing printing materials, tissue paper, and packaging products. However, the low wet strength of commercially available paper limits its application in packaging, particularly when it comes into contact with liquids. To address this issue, researchers have explored various strategies, including the use of wet strength agents. The most widely used agent, polyamide-epichlorohydrin resin (PAE), has limitations, such as poor dimensional stability and limited recyclability. Additionally, PAE can release harmful chlorinated organics. To overcome these challenges, we report a novel approach using a hyperbranched wet strength agent (referred to as "OA-PI") based on the cross-linking of oxidized amylopectin from waxy corn and polyamines through the Schiff base reaction. The hyperbranched structure of OA-PI provides multiple binding sites, enhancing the cross-linking strength of cellulosic paper under wet conditions. The paper treated with OA-PI exhibited exceptional wet strength, significantly higher than that of PAE-treated paper and paper with traditional starch-based additives. Moreover, the biomass-based OA-PI showed improved recyclability and reduced harm from chlorinated organic compounds. This study not only enhances the wet strength of paper but also opens sustainable avenues for the design of functional adhesives.
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Affiliation(s)
- Yuxi Zhou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Quanbo Huang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lei Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaohui Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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Guo M, Deng Y, Huang J, Huang Y, Deng J, Wu H. Fabrication and Validation of a 3D Portable PEGDA Microfluidic Chip for Visual Colorimetric Detection of Captured Breast Cancer Cells. Polymers (Basel) 2023; 15:3183. [PMID: 37571077 PMCID: PMC10421435 DOI: 10.3390/polym15153183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 08/13/2023] Open
Abstract
To guide therapeutic strategies and to monitor the state changes in the disease, a low-cost, portable, and easily fabricated microfluidic-chip-integrated three-dimensional (3D) microchamber was designed for capturing and analyzing breast cancer cells. Optimally, a colorimetric sensor array was integrated into a microfluidic chip to discriminate the metabolites of the cells. The ultraviolet polymerization characteristic of poly(ethylene glycol) diacrylate (PEGDA) hydrogel was utilized to rapidly fabricate a three-layer hydrogel microfluidic chip with the designed structure under noninvasive 365 nm laser irradiation. 2-Hydroxyethyl methacrylate (HEMA) was added to the prepolymer in order to increase the adhesive capacity of the microchip's surface for capturing cells. 1-Vinyl-2-pyrrolidone (NVP) was designed to improve the toughness and reduce the swelling capacity of the hydrogel composite. A non-toxic 3D hydrogel microarray chip (60 mm × 20 mm × 3 mm) with low immunogenicity and high hydrophilicity was created to simulate the real physiological microenvironment of breast tissue. The crisscross channels were designed to ensure homogeneous seeding density. This hydrogel material displayed excellent biocompatibility and tunable physical properties compared with traditional microfluidic chip materials and can be directly processed to obtain the most desirable microstructure. The feasibility of using a PEGDA hydrogel microfluidic chip for the real-time online detection of breast cancer cells' metabolism was confirmed using a specifically designed colorimetric sensor array with 16 kinds of porphyrin, porphyrin derivatives, and indicator dyes. The results of the principal component analysis (PCA), the hierarchical cluster analysis (HCA), and the linear discriminant analysis (LDA) suggest that the metabolic liquids of different breast cells can be easily distinguished with the developed PEGDA hydrogel microfluidic chip. The PEGDA hydrogel microfluidic chip has potential practicable applicability in distinguishing normal and cancerous breast cells.
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Affiliation(s)
- Mingyi Guo
- College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China; (M.G.)
- College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Yan Deng
- College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China; (M.G.)
- College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Junqiu Huang
- College of Bioengineering, Sichuan University of Science and Engineering, Zigong 644005, China
| | - Yanping Huang
- College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China; (M.G.)
| | - Jing Deng
- College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China; (M.G.)
| | - Huachang Wu
- College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China; (M.G.)
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Hamouda T, Ibrahim HM, Kafafy HH, Mashaly HM, Mohamed NH, Aly NM. Preparation of cellulose-based wipes treated with antimicrobial and antiviral silver nanoparticles as novel effective high-performance coronavirus fighter. Int J Biol Macromol 2021; 181:990-1002. [PMID: 33864870 PMCID: PMC8056979 DOI: 10.1016/j.ijbiomac.2021.04.071] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/19/2021] [Accepted: 04/12/2021] [Indexed: 12/19/2022]
Abstract
Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). We succeeded in preparing disinfectant cellulose-based wipes treated with antimicrobial and antiviral silver nanoparticles to be used for prevention of contamination and transmission of several pathogenic viruses and microbes to human in critical areas such as hospitals and healthcare centers especially coronavirus. In this work, the antimicrobial and antiviral activities of silver nanoparticles (AgNPs) prepared with four different techniques were investigated for the utilization as a disinfectant for cellulose-based wipes. These four methods are namely; 1) trisodium citrate with cotton yarn as a reducing agent, 2) preparing AgNP's using aqueous solution of PVA in the presence of glucose, 3) trisodium citrate with cotton fabric as a reducing agent, and 4) photochemical reaction of polyacrylic acid and silver nitrate solution. Polyester/viscose blended spunlace nonwoven fabrics as cellulose based fabrics were treated with the prepared silver nanoparticles to be used as surfaces disinfection wipes. The properties of the nonwoven fabrics were examined including thickness, tensile strength in dry and wet conditions in both machine direction (MD) and cross-machine direction (CMD), bursting strength, air permeability, water permeability and surface wettability. Characterization of the AgNPs was carried out in terms of UV-VIS spectroscopy, TEM, SEM, and Zeta potential analysis. The assessment of AgNPs active solutions for antimicrobial and antiviral activities was evaluated. The results obtained from the analyses of the AgNPs samples prepared with different techniques showed good uniformity and stability of the particles, as well uniform coating of the AgNPs on the fibers. Additionally, there is a significant effect of the AgNPs preparation method on their disinfectant performance that proved its effectiveness against coronavirus (MERS-CoV), S. aureus and B. subtilis as Gram-positive bacteria, E. coli and P. mirabilis as Gram-negative bacteria, A. niger and C. albicans fungi.
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Affiliation(s)
- Tamer Hamouda
- Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Hassan M Ibrahim
- Pretreatment and Finishing of Cellulosic Fibers Department, Textile Industries Research Division, National Research Centre, 33 El-Behouth St., Dokki, P.O. 12622, Cairo, Egypt.
| | - H H Kafafy
- Dyeing, Printing and Auxiliaries Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - H M Mashaly
- Dyeing, Printing and Auxiliaries Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Nasser H Mohamed
- Proteinic and Man-Made Fibers Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Nermin M Aly
- Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
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Farazandehmehr E, Khoddami A, Dinari M. An innovative method for improving dyeing yield of the cellulosic substrate using additives in NaOH-water eutectic mixture. Int J Biol Macromol 2020; 170:561-571. [PMID: 33385456 DOI: 10.1016/j.ijbiomac.2020.12.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/15/2020] [Accepted: 12/23/2020] [Indexed: 10/22/2022]
Abstract
A novel method has been investigated to remove the conventional mercerizing drawbacks in an attempt to reduce sodium hydroxide consumption along with introducing an environmentally friendly feasible method to improve the dyeing and related properties. It was found that a binary and tertiary mixture of urea, thiourea, and sodium hydroxide could potentially fulfill this purpose. Experiments were carried out under different treatment time, temperature, and concentration of each component in the mixture. Dye properties of treated dyed samples after chemical modification in the form of K/S values were calculated. The changes in the samples' characteristics were evaluated by ATR-FTIR spectroscopy, microscopic examination, mechanical and pilling properties. The results indicated that a proper concentration of all three chemicals could enhance the dyeing properties of the substrate by which the NaOH concentration decreased from 300 to 160 g/lit. The novel eutectic solvent did not show an adverse effect on the sample's tensile and other properties.
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Affiliation(s)
- Elham Farazandehmehr
- Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Akbar Khoddami
- Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Mohammad Dinari
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran..
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