Journal of Applied Polymer Science最新文献_第3页

A Novel Preparation of Ribbon-Shaped PAN Precursor From Film With Structural and Property Analysis 用薄膜制备带状PAN前驱体的新方法及其结构和性能分析

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-09-25 DOI: 10.1002/app.71394

Lin Feng, Hangkang Ye, Cheng-Jun Li, Siyu Yang, Guannan Ren, Haitao Zhang, Liting Zhang, Lisheng Cheng, Jing Tan, Weimin Yang

{"title":"A Novel Preparation of Ribbon-Shaped PAN Precursor From Film With Structural and Property Analysis","authors":"Lin Feng, Hangkang Ye, Cheng-Jun Li, Siyu Yang, Guannan Ren, Haitao Zhang, Liting Zhang, Lisheng Cheng, Jing Tan, Weimin Yang","doi":"10.1002/app.71394","DOIUrl":"https://doi.org/10.1002/app.71394","url":null,"abstract":"<div>\u0000 \u0000 <p>The rapid adoption of carbon fiber in industrial applications has increased demand for materials that combine high performance with low cost, thereby intensifying pressure on carbon-fiber manufacturing processes. Conventional circular polyacrylonitrile (PAN) precursors mostly rely on finer denier to improve mechanical properties; however, this strategy lowers precursor yield and diminishes cost-effectiveness. This study proposed an innovative method utilizing PAN films to prepare ribbon-shaped PAN precursors. High-quality PAN films were subjected to hot-water washing, strip cutting, and hot stretching to obtain ribbon-shaped precursors. The resulting ribbon-shaped precursors, 8.0 μm thick and 2.4 mm wide, exhibited clear geometric advantages, consisting of two-dimensional, plate-like microfibrils stacked in layered assemblies. Microstructural analysis revealed uniform density without voids or significant skin-core defects. Their orientation, crystallinity, tensile strength, and thermodynamic properties were comparable to those of conventional circular precursors, laying the foundation for producing high-performance ribbon-shaped carbon fibers. This work pioneers a new pathway for developing PAN-based carbon fibers that combine high strength with high production efficiency.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic Flame Retardancy and Smoke Suppression in Flexible PVC Enabled by Magnesium Hydroxide With a Dual-Layer Coating and Fe(OH)3 Decoration 氢氧化镁双层涂层和Fe(OH)3修饰的柔性聚氯乙烯协同阻燃抑烟研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-08-31 DOI: 10.1002/app.71453

Wenqing Ge, Jia Liu, Tianmu Wu, Zhihui Lv, Li Dang

{"title":"Synergistic Flame Retardancy and Smoke Suppression in Flexible PVC Enabled by Magnesium Hydroxide With a Dual-Layer Coating and Fe(OH)3 Decoration","authors":"Wenqing Ge, Jia Liu, Tianmu Wu, Zhihui Lv, Li Dang","doi":"10.1002/app.71453","DOIUrl":"https://doi.org/10.1002/app.71453","url":null,"abstract":"<div>\u0000 \u0000 <p>To improve the flame retardancy and smoke suppression of magnesium hydroxide (MH) in flexible PVC, a hierarchical flame retardant (MH-P2@Fe) was designed via dual-layer coating of polydopamine (PDA) and polydichlorophosphazene (PDCP) followed by Fe(OH)<sub>3</sub> loading. The introduction of Fe(OH)<sub>3</sub> enhanced the thermal stability of the PDCP coating, raising its onset decomposition temperature (<i>T</i>\u0000 <sub>05</sub>) to 343.6°C. Adding 20 phr of MH-P2@Fe to PVC gave a limiting oxygen index of 25.6%, a UL-94 V-0 rating, and reductions in peak heat release rate (20.7%), total heat release (8.89%), peak smoke production rate (37.5%) and total smoke production (28.6%) compared to PVC/MH. Thermogravimetric analysis (TGA)-based quantitative analysis showed that iron oxides (Fe<sub>2</sub>O<sub>3</sub>/Fe<sub>3</sub>O<sub>4</sub>) derived from the decomposition of Fe(OH)<sub>3</sub> possess a strong catalytic char-forming capacity of 8.44 per unit mass, promoting early dehydrochlorination and deep aromatization to form a continuous, highly graphitized inorganic–organic char layer (MgO and Fe<sub>2</sub>O<sub>3</sub>/Fe<sub>3</sub>O<sub>4</sub>). In the gas phase, phosphorus radicals and water vapor quenched active radicals and diluted combustible gases. Moreover, the dual-layer coating improved interfacial adhesion, resulting in higher impact strength and tensile modulus than neat PVC, although tensile strength decreased. This work provides an effective halogen-free flame retardant for PVC with balanced performance.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyimide Membranes for Organic Solvent Nanofiltration (OSN): A Comprehensive Review of Crosslinking Strategies, Sustainable Fabrication, and Machine Learning-Assisted Design 用于有机溶剂纳滤（OSN）的聚酰亚胺膜：交联策略，可持续制造和机器学习辅助设计的综合综述

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-09-04 DOI: 10.1002/app.71458

Srinath Ravi, Saikat Sinha Ray, Dao Thi Thanh Huyen, In-Chul Kim, Young-Nam Kwon

{"title":"Polyimide Membranes for Organic Solvent Nanofiltration (OSN): A Comprehensive Review of Crosslinking Strategies, Sustainable Fabrication, and Machine Learning-Assisted Design","authors":"Srinath Ravi, Saikat Sinha Ray, Dao Thi Thanh Huyen, In-Chul Kim, Young-Nam Kwon","doi":"10.1002/app.71458","DOIUrl":"https://doi.org/10.1002/app.71458","url":null,"abstract":"<p>Organic solvent nanofiltration (OSN) has emerged as an energy-efficient alternative to conventional separation processes for molecular-level separations under mild operating conditions. Among the various membrane materials investigated, polyimides (PIs) have attracted significant attention because of their excellent thermal stability, mechanical robustness, and chemical resistance. However, conventional PI membranes often suffer from solvent-induced swelling and structural instability, limiting their long-term industrial applicability. To overcome these challenges, extensive research has focused on advanced crosslinking strategies, sustainable fabrication methods, and emerging data-driven membrane design approaches. Chemical modifications such as diamine crosslinking, metal-ion coordination, and synergistic multistep crosslinking have significantly enhanced solvent resistance and separation performance, achieving solute rejection values exceeding 99% in harsh solvents including DMF. Simultaneously, sustainable fabrication approaches involving green solvents and bio-derived materials are gaining increasing importance. In parallel, artificial intelligence (AI) and machine learning techniques are being integrated into membrane research for predictive modeling, optimization, and virtual screening of membrane performance. This review critically discusses recent advances in PI-based OSN membranes, emphasizing crosslinking chemistry, sustainable fabrication, and AI-assisted membrane design while highlighting current challenges and future industrial prospects.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.71458","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnesium Substituted Hydroxyapatite Nanoparticles-Loaded Polyvinyl Alcohol/Starch Scaffold for Bone Regeneration: Effects of Magnesium on Scaffold Structure and Properties 镁取代羟基磷灰石纳米颗粒负载聚乙烯醇/淀粉骨再生支架：镁对支架结构和性能的影响

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-09-01 DOI: 10.1002/app.71454

Thi Duy Hanh Le, Tai Trong Le, Tin – Tran Nguyen, Giang Tien Nguyen, Binh Thanh Vu, Thi-Hiep Nguyen, Huynh Nguyen Anh Tuan, Anh Thi Le

{"title":"Magnesium Substituted Hydroxyapatite Nanoparticles-Loaded Polyvinyl Alcohol/Starch Scaffold for Bone Regeneration: Effects of Magnesium on Scaffold Structure and Properties","authors":"Thi Duy Hanh Le, Tai Trong Le, Tin – Tran Nguyen, Giang Tien Nguyen, Binh Thanh Vu, Thi-Hiep Nguyen, Huynh Nguyen Anh Tuan, Anh Thi Le","doi":"10.1002/app.71454","DOIUrl":"https://doi.org/10.1002/app.71454","url":null,"abstract":"<div>\u0000 \u0000 <p>Natural bone contains various impurities such as magnesium, zinc, and strontium, which play a crucial role in bone remodeling. However, studies investigating the incorporation of these elements into polymeric scaffolds to mimic the natural bone formation process remain limited. In this study, magnesium-substituted hydroxyapatite (Mg-HA) nanoparticles are synthesized and incorporated into a polyvinyl alcohol/starch (PVA/ST) polymeric matrix to fabricate three-dimensional Mg-containing composite scaffolds. The effects of Mg incorporation on scaffold composite structure, properties, and potential application in bone regeneration are then investigated. The synthesized Mg-HA powders are characterized in terms of Mg content by SEM-EDS, phase composition by XRD, and particle size by FE-SEM. The fabricated composite scaffolds are evaluated for pore size and architecture using SEM, whereas phase and elemental composition are analyzed by XRD and SEM-EDS. In addition, compressive strength and open porosity are also determined. Biocompatibility of scaffolds is assessed by evaluating biomineralization, biodegradation in SBF solution, L929 cells-materials interaction using XRD, TGA, scaffold mass loss, and SEM-EDS. The results confirmed the successful synthesis of Mg-substituted HA nanoparticles with sizes ranging from 40 to 120 nm and their subsequent incorporation into the PVA/ST matrix for the fabrication of three-dimensional composite scaffolds. Moreover, the incorporation of Mg-HA particles into PVA/ST scaffolds enhanced their biomineralization capability in SBF solution and promoted L929 cell adhesion and spreading.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Sandwich-Structured Flexible Meta-Aramid Composite Paper With Enhanced Breakdown Strength Over a Wide Temperature Range 宽温度范围内增强击穿强度的夹层结构柔性间位芳纶复合纸的设计

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-09-01 DOI: 10.1002/app.71447

Guangyu Duan, Fengying Hu, Yahang Shi, Yinxing Li, Yuhang Wang, Jiucheng Zhu, Zuming Hu

{"title":"Design of Sandwich-Structured Flexible Meta-Aramid Composite Paper With Enhanced Breakdown Strength Over a Wide Temperature Range","authors":"Guangyu Duan, Fengying Hu, Yahang Shi, Yinxing Li, Yuhang Wang, Jiucheng Zhu, Zuming Hu","doi":"10.1002/app.71447","DOIUrl":"https://doi.org/10.1002/app.71447","url":null,"abstract":"<div>\u0000 \u0000 <p>Conventional meta-aramid paper, typically composed of poly(<i>m</i>-phenylenediamine isophthalamide) (PMIA) chopped fibers and fibrids, is inherently limited by high internal porosity and surface roughness, which severely restricts its reliability in high electric fields. Herein, interface engineering was employed to fabricate sandwich-structured composite papers via an impregnation strategy by combining poly(methyl methacrylate) (PMMA) with etched meta-aramid paper. During this process, PMMA not only infiltrates the internal pores but also forms encapsulating surface layers on both sides of meta-aramid paper, establishing a dense, robust architecture. Driven by the synergistic effects of multiple interfacial structures and hydrogen bonds between PMMA and meta-aramid paper, the resulting composite papers exhibit significantly enhanced tensile strength across a wide temperature range. Notably, the breakdown strength of PMMA/meta-aramid/PMMA composite paper reaches 57.1 MV/m at room temperature (RT) and remains at 46.9 MV/m at 100°C, representing remarkable 2.1- and 1.8-fold improvements compared to pristine meta-aramid paper. Furthermore, density functional theory (DFT) calculations and finite element simulations elucidate that the wide-bandgap PMMA effectively inhibits electron transition, while the PMMA layers significantly redistribute electric field within the meta-aramid paper. Consequently, this work offers a novel strategy for developing high-performance meta-aramid insulating materials tailored for demanding wide-temperature applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fundamentals, Advances, and Applications of Electrospun Nanofibrous 3D Materials 电纺纳米纤维三维材料的基本原理、进展和应用

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-09-10 DOI: 10.1002/app.71487

Rebecca Hengsbach, Viraj P. Nirwan, Altangerel Amarjargal, Zahra Asefi, Amir Fahmi

{"title":"Fundamentals, Advances, and Applications of Electrospun Nanofibrous 3D Materials","authors":"Rebecca Hengsbach, Viraj P. Nirwan, Altangerel Amarjargal, Zahra Asefi, Amir Fahmi","doi":"10.1002/app.71487","DOIUrl":"https://doi.org/10.1002/app.71487","url":null,"abstract":"<p>Three-dimensional (3D) electrospun nanofibrous systems have become a transformative class of materials, effectively bridging the gap between traditional two-dimensional (2D) electrospun membranes and advanced aerogels. These systems offer a unique microenvironment, such as interconnected pores, ultralight structures, and tunable mechanical and chemical properties for applications across biomedicine as well as engineering. This review provides a comprehensive overview of key fabrication strategies for 3D nanofibers, including freeze-drying, gas foaming, electrospinning-assisted assembly, templating, and additive manufacturing, that allow precise control over the 3D architecture and thereby tailor the properties and performance. We explore how these design principles influence material properties such as cell infiltration, degradability, and mechanical stability, enabling applications in tissue engineering, hemostasis, wound healing, drug delivery, and biosensing. Beyond biomedical applications, we highlight the increasing potential of 3D electrospun nanofibers in environmental applications, including filtration and oil-water separation, as well as thermal and acoustic insulation. Finally, we discuss major challenges, including scalability, and identify emerging opportunities for developing next-generation multifunctional fibrous architectures. Overall, this review aims to create a unified framework that links fabrication techniques, structure-property relationships, and application-specific design to accelerate innovation and translation in 3D electrospun nanofibrous materials.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.71487","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Friction and Wear Mechanism of Irradiated PTFE 辐照聚四氟乙烯摩擦磨损机理研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-08-31 DOI: 10.1002/app.71456

Daming Wu, Sagin Abay Bekbolatovich, Junyi Wang, Shuangquan Zhou, Wenyu Chen, Xiuting Zheng, Yu Du, Xiaolong Gao

{"title":"Study on the Friction and Wear Mechanism of Irradiated PTFE","authors":"Daming Wu, Sagin Abay Bekbolatovich, Junyi Wang, Shuangquan Zhou, Wenyu Chen, Xiuting Zheng, Yu Du, Xiaolong Gao","doi":"10.1002/app.71456","DOIUrl":"https://doi.org/10.1002/app.71456","url":null,"abstract":"<div>\u0000 \u0000 <p>The internal linear long chain and parallel lamellar structure of traditional PTFE lead to weak intermolecular forces, easy delamination during friction, and poor wear resistance. In this work, the main chain of PTFE was moderately broken by irradiated-modified technology, and self-grafting and local cross-linking occurred to form a branched structure, and the compressive elastic modulus of irradiated PTFE was increased to 720 from 580 MPa of unirradiated PTFE. The low molecular chain segment promotes the transformation of the crystal to the radial spherulite and effectively inhibits the delamination. Compared with unirradiated PTFE, the wear rate of irradiated PTFE decreased by three orders of magnitude, and the wear debris was transformed into micro/nano particles, which made it difficult to form a complete transfer film on the friction pair surface, and the friction coefficient increased by 0.16. Based on the unique molecular structure of irradiated PTFE, the constructed rigid abrasive wear model can clarify the wear mechanism of micro/nano debris produced by the asperity of the friction pair and provide a theoretical basis for the application of PTFE friction pair with branched molecular chain and spherulite structure.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Microchannel Structure on the Quality and Collagen Regeneration Promoting Effect of Astragaloside/PCL Microspheres: A Numerical Simulation Assisted Experimental Study 微通道结构对黄芪甲苷/PCL微球质量及胶原再生促进作用的影响：数值模拟辅助实验研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-08-31 DOI: 10.1002/app.71457

Die Xie, Xin Che, Li Zha, Mengxing Chen, Qian Zhang, Enshun Yang, Lihong Wang

{"title":"The Influence of Microchannel Structure on the Quality and Collagen Regeneration Promoting Effect of Astragaloside/PCL Microspheres: A Numerical Simulation Assisted Experimental Study","authors":"Die Xie, Xin Che, Li Zha, Mengxing Chen, Qian Zhang, Enshun Yang, Lihong Wang","doi":"10.1002/app.71457","DOIUrl":"https://doi.org/10.1002/app.71457","url":null,"abstract":"<div>\u0000 \u0000 <p>Microfluidic technology holds significant potential for preparing drug-loaded microspheres, yet systematic research on optimizing microchannel structures for better microsphere performance and efficacy remains scarce. This study systematically compared the effects of Y-shaped and Cross-shaped microchannels on Astragaloside/PCL microspheres through numerical simulation and experimental validation. Simulations employed Ansys Fluent to analyze fluid dynamics characteristics. Experimental analyses included particle size distribution via ImageJ, microstructure via scanning electron microscopy (SEM), and cumulative drug release via HPLC-ELSD. In vivo pharmacology experiments evaluated inflammation and collagen regeneration using HE and Masson staining. Simulation results showed Cross-shaped microchannels produce a more stable, uniform flow field, aiding formation of microspheres with consistent size and regular morphology. Experiments confirmed these microspheres had higher surface roundness, more uniform particle size, higher encapsulation efficiency, and prolonged release. In vivo studies further verified their superior biocompatibility and tissue regeneration. Results showed high consistency with simulations. In summary, this study successfully synthesized high-performance AS/PCL microspheres through the integration of numerical simulation and experimental research. Importantly, it revealed and validated the intrinsic logical relationship between “microchannel structure - flow field characteristics - microsphere quality - drug efficacy”, providing a new research paradigm and technical pathway for developing rationally designed, high-performance drug delivery systems.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of PEG/P(G-AM-ChCl) Composite Hydrogel via Photo-Polymerization With Ternary Deep Eutectic Solvent and Its Performance Study 三元深共熔溶剂光聚合法制备PEG/P（G-AM-ChCl）复合水凝胶及其性能研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-09-03 DOI: 10.1002/app.71460

Haoyu Lv, Bin Li, Zhigang Hu, Mengjing Zhou, Jiawei Li, Longfei He, Yuzuo Liu, Ming Ma

{"title":"Preparation of PEG/P(G-AM-ChCl) Composite Hydrogel via Photo-Polymerization With Ternary Deep Eutectic Solvent and Its Performance Study","authors":"Haoyu Lv, Bin Li, Zhigang Hu, Mengjing Zhou, Jiawei Li, Longfei He, Yuzuo Liu, Ming Ma","doi":"10.1002/app.71460","DOIUrl":"https://doi.org/10.1002/app.71460","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, a ternary deep eutectic solvent (DES) was prepared using glycerol (Gly), acrylamide (AM), and choline chloride (ChCl) as raw materials, and polyethylene glycol (PEG) with different mass fractions was introduced as a filler into the DES to fabricate PEG/P(G-AM-ChCl) composite hydrogels via photopolymerization. The composite hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The effects of PEG content on the swelling behavior, water holding capacity, mechanical properties, and fatigue resistance of the composite hydrogels were systematically investigated. The results showed that the addition of PEG promoted the formation of a denser hydrogen bonding network within the hydrogel, effectively reducing the water loss rate, and the equilibrium swelling degree of the composite hydrogels increased to 9.61 with increasing PEG content. The composite hydrogels exhibited excellent mechanical properties and fatigue resistance, with a compressive strength reaching 0.157 MPa after PEG addition, which was 1.25 times higher than that of the PEG-free group. This study provides a simple method for preparing composite hydrogels with high water holding efficiency.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the Mechanical, Barrier, and Biodegradability Properties of KGM/Agar/Pullulan Composite Films Through Controlled Deacetylation for Sustainable Packaging 通过控制去乙酰化提高KGM/琼脂/普鲁兰复合膜的机械、屏障和生物降解性能

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-07 Epub Date: 2026-09-02 DOI: 10.1002/app.71459

Qiaozhang She, Zhendong Hu, Fanghui Lei, Qixi Zheng, Yuxin Wu

{"title":"Enhancing the Mechanical, Barrier, and Biodegradability Properties of KGM/Agar/Pullulan Composite Films Through Controlled Deacetylation for Sustainable Packaging","authors":"Qiaozhang She, Zhendong Hu, Fanghui Lei, Qixi Zheng, Yuxin Wu","doi":"10.1002/app.71459","DOIUrl":"https://doi.org/10.1002/app.71459","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the controlled deacetylation of konjac glucomannan (KGM) and its incorporation into agar (AGAR) and pullulan (PUL) to fabricate composite films (DKAP) for sustainable packaging applications. The effects of varying deacetylation degrees on the physicochemical and functional properties of KGM and the resulting films were systematically evaluated. FTIR analysis confirmed effective acetyl removal with an increase in deacetylation degree, which was accompanied by reduced viscosity. Moderate deacetylation improved intermolecular interactions, leading to enhanced mechanical strength, water vapor barrier properties, and hydrophobicity. The D<sub>4</sub>KAP film, with optimal deacetylation, exhibited the best overall performance, with a tensile strength of 85.47 ± 4.21 MPa and a water vapor permeability of 0.98 ± 0.06 × 10<sup>−6</sup> g·m<sup>−1</sup>·h<sup>−1</sup>·Pa<sup>−1</sup>. Additionally, the D<sub>4</sub>KAP film showed reduced swelling and solubility compared to other films. Excessive deacetylation (above 35%) caused aggregation, structural defects, and reduced performance. All films remained biodegradable in natural soil, and fruit preservation tests (bananas and strawberries) showed that D<sub>4</sub>KAP effectively reduced water loss and preserved fruit quality, demonstrating its potential as an eco-friendly packaging material. These results provide new insights into the optimization of biodegradable films for food packaging, highlighting the significance of controlled deacetylation in improving film performance and sustainability.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 43","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0