Polymer Engineering and Science最新文献

Mechanistic Investigation of Lecithin Enabled Efficient Vulcanization of Rubber With Reduced Zinc Oxide 卵磷脂促进橡胶还原性氧化锌高效硫化的机理研究

4区工程技术

Polymer Engineering and Science Pub Date : 2025-12-27 DOI: 10.1002/pen.70343

Lin Chen, Meng‐Zhen Zhou, Ning Wang, Zhikai Tu, Yan‐Chan Wei, Shuangquan Liao

{"title":"Mechanistic Investigation of Lecithin Enabled Efficient Vulcanization of Rubber With Reduced Zinc Oxide","authors":"Lin Chen, Meng‐Zhen Zhou, Ning Wang, Zhikai Tu, Yan‐Chan Wei, Shuangquan Liao","doi":"10.1002/pen.70343","DOIUrl":"https://doi.org/10.1002/pen.70343","url":null,"abstract":"ABSTRACT In the conventional vulcanization of rubber, heavy reliance on zinc oxide (ZnO) results in resource waste and significant environmental pollution. Consequently, developing green and efficient strategies to reduce ZnO usage remains critical. In this study, lecithin, a bio‐based activator, is introduced into rubber to reduce ZnO usage during vulcanization. The addition of only 1.2 phr lecithin enables a 60% reduction in ZnO content while still maintaining the vulcanization efficiency and mechanical strength of natural rubber (NR). Notably, under reduced ZnO content, the NR sample with lecithin shows tensile strength increasing from 2.14 to 11.75 MPa compared to the sample without lecithin. Mechanistic investigations reveal that lecithin coordinates with Zn 2+ , which greatly improves dispersion of ZnO in the NR and enhances its utilization efficiency. Moreover, density functional theory (DFT) calculations confirm that lecithin‐Zn 2+ chelates increase the nucleophilicity of sulfur atoms in the accelerator toward elemental sulfur (S 8 ), lowering the Gibbs free energy for zinc polysulfide formation (Δ G is reduced from 71.59 to 55.68 kJ/mol) and accelerating vulcanization. In summary, lecithin acts as an effective bio‐based activator to enable a significant reduction in ZnO content without compromising the properties of NR. This approach provides a sustainable, efficient, and practical strategy for the development of low‐ZnO rubber composites.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyolefin Elastomer Toughened Polylactic Acid Composites With Low Extrusion Expansion for Quick Fused Deposition Modeling Additive Manufacturing 聚烯烃弹性体增韧聚乳酸低挤压膨胀复合材料快速熔融沉积建模增材制造

4区工程技术

Polymer Engineering and Science Pub Date : 2025-12-15 DOI: 10.1002/pen.70309

Lili Zhao, JunShuai Xue, Dan Xing, Yubo Tao, J. Zhang, Fanjie Kong, Peng Li, Jianlong Wang, Ahmed Koubaa

{"title":"Polyolefin Elastomer Toughened Polylactic Acid Composites With Low Extrusion Expansion for Quick Fused Deposition Modeling Additive Manufacturing","authors":"Lili Zhao, JunShuai Xue, Dan Xing, Yubo Tao, J. Zhang, Fanjie Kong, Peng Li, Jianlong Wang, Ahmed Koubaa","doi":"10.1002/pen.70309","DOIUrl":"https://doi.org/10.1002/pen.70309","url":null,"abstract":"ABSTRACT Polylactic acid (PLA), a degradational plastic, faces challenges in additive manufacturing due to high cost and low toughness. This study developed an innovative PLA random copolymer‐based composite system by incorporating maleic anhydride‐grafted polyethylene‐octene (MA‐POE) and bamboo powder to achieve a composite with low cost and superb mechanical strength for high‐speed 3D printing. Furthermore, a fused deposition modeling 3D‐printing approach was employed with a speed of 200 mm/s to enhance both processing efficiency and mechanical performance. The tensile and impact strength of the resulting composites increased by 33% and 24% after the incorporation of bamboo powders, respectively. The addition of MA‐POE significantly enhanced the toughness up to 17.36 KJ/m 2 , a 50% improvement compared to PLA/bamboo composites. Both bamboo powder and MA‐POE decreased the melt flow index from 67.2 g/10 min of pure PLA to 13.5 g/10 min of the resulting composites with 15% POE and 15% bamboo fiber. The entanglement effect of polymer molecular chains between PLA and bamboo powder, as well as MA‐POE, reduced die swell of the extruded filament, enabling more consistent strand dimensions, thereby improving printing accuracy and quality.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Swelling Kinetics and Flory–Huggins Interactions in Thermally Aged Brominated Butyl Rubber and Silicone Rubber 热老化的溴化丁基橡胶和硅橡胶的膨胀动力学和Flory-Huggins相互作用

4区工程技术

Polymer Engineering and Science Pub Date : 2025-12-15 DOI: 10.1002/pen.70322

Zhenxing Liu, Min Zhang, Xiaolin Zhao, Song Gao, Guangyong Liu

{"title":"Swelling Kinetics and Flory–Huggins Interactions in Thermally Aged Brominated Butyl Rubber and Silicone Rubber","authors":"Zhenxing Liu, Min Zhang, Xiaolin Zhao, Song Gao, Guangyong Liu","doi":"10.1002/pen.70322","DOIUrl":"https://doi.org/10.1002/pen.70322","url":null,"abstract":"ABSTRACT This study investigated the effects of thermo‐oxidative aging on the swelling behavior and evolution of network structure for the brominated butyl rubber (BBR) and silicone rubber (SR) in lithium battery electrolytes through dynamic swelling kinetic tests. The swelling mechanism was elucidated combined with the Flory–Rehner theory and Flory–Huggins interaction parameter under simulated battery conditions, namely high‐temperature electrolyte immersion test. The results showed that thermo‐oxidative aging induced secondary crosslinking and caused a significantly increase in the crosslink density for BBR from 2.57 × 10 4 to 3.46 × 10 4 mol/cm 3 and SR from 6.14 × 10 4 to 6.75 × 10 4 mol/cm 3 . Despite the superior transport coefficients of SR due to its flexible siloxane chains, BBR exhibited an 11.2% higher swelling ratio at 80°C owing to the diminished elastic retraction of the crosslinking network. Furthermore, ethylene carbonate‐dominated electrolytes with higher polarity reduced the swelling by 18.3%–25.7% compared with that of Diethyl carbonate/Methyl ethyl carbonate ‐dominated electrolytes. It has been tried to correlate the swelling ratios of SR and BBR with the Flory–Huggins interaction parameter to quantify solvent compatibility and establish the theoretical guidance for predicting fluid resistance of battery seals.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Biocompatible and Enzymatically Degradable Zeolitic Imidazolate Framework‐8 Reinforced Gellan Gum Hydrogels With Low Swelling in Physiological Saline 具有生物相容性和酶降解的咪唑酸沸石骨架- 8增强结冷胶水凝胶，在生理盐水中具有低溶胀性

4区工程技术

Polymer Engineering and Science Pub Date : 2025-12-10 DOI: 10.1002/pen.70276

Yudong Lian, Cuicui Wang, Zhaolong Sun, Quan Ji, Jinglong Tang, Xiaomei Ma

{"title":"Biocompatible and Enzymatically Degradable Zeolitic Imidazolate Framework‐8 Reinforced Gellan Gum Hydrogels With Low Swelling in Physiological Saline","authors":"Yudong Lian, Cuicui Wang, Zhaolong Sun, Quan Ji, Jinglong Tang, Xiaomei Ma","doi":"10.1002/pen.70276","DOIUrl":"https://doi.org/10.1002/pen.70276","url":null,"abstract":"ABSTRACT Hydrogels of exopolysaccharide gellan gum (GG) show great potential in biomedical areas. However, their weak mechanical properties and lack of functionality impede the practical applications. To address this, zeolitic imidazolate framework‐8 (ZIF‐8) nanoparticles were integrated into GG hydrogels via physical blending. X‐ray diffraction confirms the successful incorporation and even distribution of ZIF‐8 within the GG matrix. The novel composite hydrogels exhibit excellent mechanical properties without compromising the GG hydrogel's inherent thermoreversibility. Specifically, they achieve a maximum compressive strength and fracture energy of 0.85 MPa and 6.91 kJ·m −3 , and tensile strength and fracture energy of 95.09 kPa and 12.89 kJ·m −3 , respectively. They also display outstanding elasticity, resilience, and fatigue resistance, recovering approximately 86% after 10 compression cycles at 70% strain and over 70% after 10 stretching cycles at 200% strain. Notably, the composite hydrogels exhibit excellent swelling resistance in physiological saline, good biocompatibility, and enzymatic degradation by specific enzymes, with the equilibrium ratio lower than 56% and the minimum NIH3T3 cell viability higher than 86% after 24 h' incubation in the hydrogel extract. The excellent mechanics, eco‐friendliness, and unique thermoreversibility and rheological properties suggest their suitability for applications in biomedical fields like 3D printable and repairable tissue engineering materials.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"1272-1283"},"PeriodicalIF":0.0,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pen.70276","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Super‐Tough Impregnating Adhesive and Its Impregnated Decorative Materials: Highly Crack‐Resistant Surface Layers Suitable for Extreme Climate Variations 超韧浸渍胶粘剂及其浸渍装饰材料：高抗裂表层，适用于极端气候变化

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-25 DOI: 10.1002/pen.70265

Heng Hu, Ru Liu, Yuhui Sun, Mingchang Zhang, Ling Long

{"title":"Super‐Tough Impregnating Adhesive and Its Impregnated Decorative Materials: Highly Crack‐Resistant Surface Layers Suitable for Extreme Climate Variations","authors":"Heng Hu, Ru Liu, Yuhui Sun, Mingchang Zhang, Ling Long","doi":"10.1002/pen.70265","DOIUrl":"https://doi.org/10.1002/pen.70265","url":null,"abstract":"ABSTRACT As the wood‐based panel market expands, impregnated paper is a key surface‐decoration material for furniture, flooring, and construction panels, with melamine‐formaldehyde (MF) adhesive‐impregnated paper prevailing for its adhesion, water resistance, and abrasion resistance. The intrinsic brittleness of MF adhesive, however, makes decorative plywood prone to surface cracking, and moisture fluctuations under hot–cold cycling or extreme climates further shorten service life. We synthesized a hyperbranched polysiloxane (HBPSi‐NH 2 ) from 3‐aminopropyltriethoxysilane (APTES) and 2‐methyl‐1,3‐propanediol (MPD) and used it to toughen MF adhesive. The modified MF adhesive‐impregnated paper was hot pressed onto plywood to evaluate the adhesive, the impregnated paper, and the resulting decorative plywood. Mechanistically, HBPSi‐NH 2 provides SiOC flexible segments that offer low‐energy rotational pathways, while surface SiOH groups form reversible hydrogen bonds with MF NH 2 and OH groups, creating recoverable energy‐dissipation units within the three‐dimensional network. This architecture strengthens HBPSi‐NH 2 /MF interfacial interactions and promotes stress redistribution and energy dissipation under tension, thereby enhancing toughness. At 2 wt% HBPSi‐NH 2 , the 4HBPSi‐NH 2 /MF adhesive‐impregnated paper reached 20.2% elongation at break, nearly double the neat MF counterpart (10.2%). After hot‐press lamination to plywood, the surface showed no detectable cracking. Collectively, these results demonstrate that HBPSi‐NH 2 effectively toughens MF adhesive and helps prevent cracking in decorative plywood.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"1128-1140"},"PeriodicalIF":0.0,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound‐Driven Filler Network Reconstruction for High‐Performance Self‐Strengthening Elastomer 高性能自增强弹性体的超声驱动填充网络重建

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-17 DOI: 10.1002/pen.70258

Guixiang Liu, Yan‐Chan Wei, Zhikai Tu, Shuangquan Liao

{"title":"Ultrasound‐Driven Filler Network Reconstruction for High‐Performance Self‐Strengthening Elastomer","authors":"Guixiang Liu, Yan‐Chan Wei, Zhikai Tu, Shuangquan Liao","doi":"10.1002/pen.70258","DOIUrl":"https://doi.org/10.1002/pen.70258","url":null,"abstract":"ABSTRACT The development of elastomer composite is persistently challenged by the difficulty in balancing its mutually conflicting properties, namely tensile strength, toughness, rolling resistance, wet skid resistance, and abrasion resistance. Inspired by ultrasound‐induced self‐strengthening strategies, this study developed high‐performance natural rubber (NR) composites by employing ultrasound to reconstruct the silica (SiO 2 ) filler network. The results demonstrated that appropriate ultrasonic treatment effectively broke down the original SiO 2 aggregates and facilitated the formation of a newly generated, more uniform filler network with a porous morphology. This reconstructed filler network was characterized by weakened filler‐filler interactions, evidenced by a reduced Payne effect, and significantly enhanced filler‐rubber interactions, indicated by an increase in bound rubber content from 31.7% to 43.9% and improved SiO 2 dispersion. Consequently, the optimized composite (NR/SiO 2 ‐P900‐A80) achieved a simultaneous enhancement in tensile strength (from 23.3 to 30.5 MPa) and toughness (from 47.1 to 79.0 J/cm 2 ). Remarkably, this method successfully improved wet skid resistance (tan δ at 0°C increased) and abrasion resistance (reduced abrasion volume from 0.87 to 0.57 cm 3 ) without compromising rolling resistance. This work presents a simple, effective, and industrially compatible ultrasound‐assisted strategy for fabricating high‐performance tread rubber by synergistically enhancing key properties through filler network reconstruction.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"1039-1046"},"PeriodicalIF":0.0,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual‐Stimuli Shape Memory Thermoplastic Polyurethane/Poly (ε‐Caprolactone) Polymer Composites With Polydopamine‐Coated Halloysite Nanotubes for Enhanced Photo‐Responsive Actuation 双刺激形状记忆热塑性聚氨酯/聚（ε‐己内酯）聚合物复合材料与聚多巴胺涂层埃洛石纳米管增强光响应驱动

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-14 DOI: 10.1002/pen.70237

Shilong Wang, Zhicheng Zhang, Yunhao Bao, Yun Chen Wu, Tianyi Wang, Pinghou Sheng, Simin Xu, Yun Ding

{"title":"Dual‐Stimuli Shape Memory Thermoplastic Polyurethane/Poly (ε‐Caprolactone) Polymer Composites With Polydopamine‐Coated Halloysite Nanotubes for Enhanced Photo‐Responsive Actuation","authors":"Shilong Wang, Zhicheng Zhang, Yunhao Bao, Yun Chen Wu, Tianyi Wang, Pinghou Sheng, Simin Xu, Yun Ding","doi":"10.1002/pen.70237","DOIUrl":"https://doi.org/10.1002/pen.70237","url":null,"abstract":"ABSTRACT To date, shape memory polymer composites (SMPCs) have made significant progress in terms of material design, driving methods, and application fields. Despite these exciting achievements, the performance of most previous SMPCs remains suboptimal for realizing their full potential in stimuli‐responsive actuators due to their limited single‐stimulus responsiveness and restricted controlling capability. Herein, we report novel dual‐stimuli responsive SMPCs fabricated by embedding PDA@HNTs into a thermoplastic polyurethane (TPU) and poly (ε‐caprolactone) (PCL) blend. The incorporation of PDA@HNTs can not only endow TPU/PCL blends with photo‐thermal conversion capability, but also enhance thermally induced shape memory performance of SMPCs. Specifically, TPU50/PCL50‐PDA@HNTs‐2.0 blend exhibits superior dual shape memory property as manifested by shape fixing ratio of 99.3% and shape recovery ratio of 96.8% in water bath at 65°C, which takes only 10s for recovering permanent shape. Besides, under 808 nm NIR irradiation, the shape fixity ratio and shape recovery ratio of TPU50/PCL50‐PDA@HNTs‐2.0 blend can even reach 99.3% and 99.7%, respectively. More interestingly, we design a laminated‐structure composite to achieve tunable shape recovery time, which allows SMPCs to be customizable in different situations. This work may offer insights into the development of multiresponsive SMPCs, which expands the potential application of shape memory polymers.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"813-825"},"PeriodicalIF":0.0,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Toughness and Flame Retardancy of Epoxy Thermosets Using SEBS ‐g‐ PEG / DOPO Blends 用SEBS - g - PEG / DOPO共混物增强环氧热固性材料的韧性和阻燃性

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-09 DOI: 10.1002/pen.70232

Muhammad Sajjad, Muhammad Kamran, Salman Qadir, K. Ramki, S. Dharani, Shao‐Tao Bai

引用次数: 0

Fabrication of Tri‐Layered Core‐Shell Structure Acrylonitrile–Styrene–Acrylate ( ASA ) Particles for Toughening Poly(Styrene‐Co‐Acrylonitrile) Resin 用于增韧聚苯乙烯- Co -丙烯腈树脂的三层核壳结构丙烯腈-苯乙烯-丙烯酸酯（ASA）颗粒的制备

4区工程技术

Polymer Engineering and Science Pub Date : 2025-10-22 DOI: 10.1002/pen.70195

Xinyu Yao, Haowei Shen, Baijun Liu, Mingyao Zhang

{"title":"Fabrication of Tri‐Layered Core‐Shell Structure Acrylonitrile–Styrene–Acrylate ( <scp>ASA</scp> ) Particles for Toughening Poly(Styrene‐Co‐Acrylonitrile) Resin","authors":"Xinyu Yao, Haowei Shen, Baijun Liu, Mingyao Zhang","doi":"10.1002/pen.70195","DOIUrl":"https://doi.org/10.1002/pen.70195","url":null,"abstract":"ABSTRACT Tri‐layered ASA core–shell toughening particles with controlled grafting ratios were synthesized to simultaneously improve the mechanical properties of poly(styrene‐co‐acrylonitrile) (SAN). Poly(butyl acrylate) (PBA) cores with different grafting agent distributions were synthesized via semicontinuous emulsion polymerization. ASA particles were then prepared by the grafting emulsion polymerization at different conditions. Dynamic light scattering (DLS) and scanning electron microscopy (SEM) revealed particle sizes of 395–471 nm, uniform dispersion, and stable morphology. Samples with a moderate grafting ratio (11.5%) exhibited the best property balance, with 11.5 kJ/m 2 impact strength, 15% elongation at break, and a Vicat softening point of 101.2°C. At 0.15% t‐dodecyl mercaptan (TDDM) loading, rubber cores achieved optimal flexibility and stability, yielding the highest toughness. Incorporating 10% methyl methacrylate (MMA) increased the grafting ratio to 15.2%, improving whiteness (66%), brightness (91.3%), gloss (83.6%), and tensile strength (54 MPa); the toughening ability of ASA particles was limited when the grafting ratio reached certain levels. These findings demonstrate that controlling the tri‐layer core–shell architecture, TDDM concentration, and MMA fraction allows for simultaneous optimization of toughness, thermal stability, and surface properties in ASA resins.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 1","pages":"140-150"},"PeriodicalIF":0.0,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Drug‐Loaded Dual‐Network Hydrogels Possessing Both Adhesive and Antibacterial Properties for Skin Dressings 具有粘接和抗菌性能的载药双网水凝胶用于皮肤敷料

4区工程技术

Polymer Engineering and Science Pub Date : 2025-10-21 DOI: 10.1002/pen.70173

X. Chen, Huirong Li, Huiqing Liu, Shida Feng, Shuai Wang, Shaokang Fang, Yong Yuan, Xue Wang, Jintong Li, Yue Yu, Hong Zhang, Jing Guo

{"title":"The Drug‐Loaded Dual‐Network Hydrogels Possessing Both Adhesive and Antibacterial Properties for Skin Dressings","authors":"X. Chen, Huirong Li, Huiqing Liu, Shida Feng, Shuai Wang, Shaokang Fang, Yong Yuan, Xue Wang, Jintong Li, Yue Yu, Hong Zhang, Jing Guo","doi":"10.1002/pen.70173","DOIUrl":"https://doi.org/10.1002/pen.70173","url":null,"abstract":"ABSTRACT Double‐network hydrogels exhibit extensive applications within the biomedical domain, encompassing various aspects such as tissue engineering, drug delivery systems, and wound dressings. Their notable characteristics, including high mechanical strength, superior adhesiveness, exceptional water retention capacity, and antibacterial properties, offer innovative solutions for numerous challenges faced in the biomedical field. In this study, tannic acid (TA) was employed as a crosslinking agent, and mixed solutions of water and glycerol with different mass ratios were adopted, resulting in the successful synthesis of a polyvinyl alcohol (PVA)/gelatin (GEL) organic hydrogel with remarkable mechanical properties. The incorporation of TA facilitates the formation of robust hydrogen bonds with the PVA chains, thereby enhancing the mechanical strength of the hydrogel. The maximum tensile strength, elongation at break, and toughness value of the hydrogel are 2.5 MPa, 800%, and 1.1 MJ/m 3 . The lap shear adhesive performance test demonstrated that the hydrogel possesses excellent adhesion properties, capable of adhering to various substrates (with the highest adhesion strength observed on wood, reaching 76.8 kPa). Furthermore, the hydrogel can adhere to skin without leaving any residue upon removal. Results from in vitro coagulation tests revealed that the hydrogel fortified with TA effectively promotes blood coagulation on its surface. Antibacterial tests indicated that the TA‐containing organic hydrogel exhibits a significant inhibitory effect on Staphylococcus aureus . Additionally, TA can be gradually released from the hydrogel into a phosphate‐buffered saline (PBS) solution. Consequently, TA‐loaded hydrogels hold promising potential for application as wound dressings.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"65 12","pages":"6890-6903"},"PeriodicalIF":0.0,"publicationDate":"2025-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0