Polymer Engineering and Science最新文献_第3页

Constructing Robust and Anti‐Aging Elastomer Composites via Natural Polyphenol‐Induced Dynamic Interfacial π‐π Stacking Interaction 利用天然多酚诱导的动态界面π - π堆叠相互作用构建坚固抗老化弹性体复合材料

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-17 DOI: 10.1002/pen.70260

Qing He, Man Chen, Jingjing Luo, Sha Yao, Baomin Zhong, Huanhuan Dong

{"title":"Constructing Robust and Anti‐Aging Elastomer Composites via Natural Polyphenol‐Induced Dynamic Interfacial <i>π‐π</i> Stacking Interaction","authors":"Qing He, Man Chen, Jingjing Luo, Sha Yao, Baomin Zhong, Huanhuan Dong","doi":"10.1002/pen.70260","DOIUrl":"https://doi.org/10.1002/pen.70260","url":null,"abstract":"ABSTRACT Robust and anti‐aging elastomer composites are witnessing growing demand in cutting‐edge fields such as intelligent equipment, yet their fabrication still faces significant challenges. In this work, by synergistically integrating the advantages of dynamic elastomer‐filler interfacial interactions and non‐migratory antioxidants, natural polyphenol resveratrol (Res) was covalently grafted onto nano‐silica (SiO 2 ) surfaces, yielding Res‐functionalized SiO 2 (SiO 2 ‐Res), which was subsequently incorporated into styrene‐butadiene rubber (SBR) as a functional filler to fabricate SBR composite. The grafted Res formed dynamic π‐π stacking interactions with SBR chains, which significantly suppressed the Payne effect of SiO 2 ‐Res and improved its dispersion in SBR. Consequently, SiO 2 ‐Res showed superior reinforcing efficiency for SBR compared to unmodified SiO 2 and silane modified SiO 2 . For instance, at the filler loading of 30 phr, the SBR/SiO 2 ‐Res composite exhibited a remarkable 87% improvement in tensile strength over SBR/SiO 2 while concurrently improving the elasticity. In addition, SiO 2 ‐Res significantly improved the thermo‐oxidative stability of SBR composites. This improvement is attributed to the efficient free radical scavenging by phenolic hydroxyl groups in the grafted Res with good migration resistance and thermal stability during thermal‐oxidative aging. This strategy may introduce a promising approach for the fabrication of elastomers with dual‐enhanced aging stability and mechanoelasticity.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"1065-1075"},"PeriodicalIF":0.0,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915027","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

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

Ultra‐Lightweight, Highly Formable, and Thermally Anisotropic Polyimide Aerogel Composites Prepared by Unidirectional Freeze Drying for Thermal Protection Applications 通过单向冷冻干燥制备的用于热防护应用的超轻、高成型和热各向异性聚酰亚胺气凝胶复合材料

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-14 DOI: 10.1002/pen.70238

Bing Xu, Dehua Pan, Yue Yu, Ziyang Zhou, Jie Hu, Wuqi Wen, Shui He, Guozhi Fan

{"title":"Ultra‐Lightweight, Highly Formable, and Thermally Anisotropic Polyimide Aerogel Composites Prepared by Unidirectional Freeze Drying for Thermal Protection Applications","authors":"Bing Xu, Dehua Pan, Yue Yu, Ziyang Zhou, Jie Hu, Wuqi Wen, Shui He, Guozhi Fan","doi":"10.1002/pen.70238","DOIUrl":"https://doi.org/10.1002/pen.70238","url":null,"abstract":"ABSTRACT Developing lightweight materials that combine low drying shrinkage with highly anisotropic thermal conductivity remains a key issue that must be addressed to meet the special requirements of integrally formed nose cones applied in hypersonic aircraft, which must achieve efficient windward (i.e., axial) insulation and enable heat dissipation perpendicular to the windward direction (i.e., radial) simultaneously. The present work employs unidirectional freeze‐drying combined with molecular bonding engineering strategies to enhance the anisotropic structure of the polyimide (PI). By innovatively introducing a trace amount (only 1 wt%) of aminated glass fibers (GF) to construct multiple robust structural anchors, the network structure is significantly reinforced, yielding a high‐performance PI/GF aerogel composite to address this challenge. The PI/GF aerogel composite exhibits an ultra‐low density of 0.01 g/cm 3 and a drying shrinkage of only 1.75%. The axial compressive strength of the PI/GF aerogel composite materials reaches up to102.1 KPa. Finally, the PI/GF aerogel composites demonstrate significantly lower thermal diffusivity perpendicular to the freezing direction (radial direction, 0.601–3.680 mm 2 /s) than that observed parallel to the freezing direction (axial direction, 2.074–13.182 mm 2 /s) owing to pronounced morphological anisotropy, where a lamellar porous structure in the radial direction contributes to its superior thermal insulation performance. These results demonstrate that the proposed composites represent advanced thermal protection materials appropriate for hypersonic aircraft.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"826-838"},"PeriodicalIF":0.0,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147890246","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

Design of Melamine Formaldehyde Resin Microencapsulated Ammonium Polyphosphate and Its Enhancement to the Flame Retardancy and Hydrophobicity of Cellulose Paper 三聚氰胺甲醛树脂微囊化聚磷酸铵的设计及其对纤维素纸阻燃疏水性的增强

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-11 DOI: 10.1002/pen.70208

Kexin Liu, Ling Xu, Feng Zhu, Xinxing Xia

{"title":"Design of Melamine Formaldehyde Resin Microencapsulated Ammonium Polyphosphate and Its Enhancement to the Flame Retardancy and Hydrophobicity of Cellulose Paper","authors":"Kexin Liu, Ling Xu, Feng Zhu, Xinxing Xia","doi":"10.1002/pen.70208","DOIUrl":"https://doi.org/10.1002/pen.70208","url":null,"abstract":"ABSTRACT At present, ammonium polyphosphate (APP) is one of the most popular and eco‐friendly flame retardants. However, the high solubility and electronegativity limit its application in cellulose paper. In this study, APP was microencapsulated with melamine formaldehyde resin (MFR) with varying core‐shell ratios (MFAPP) and incorporated into the pulp to fabricate fire‐resistant cellulosic paper. It was found that APP exhibited a rectangular morphology with a smooth surface. The surface roughness of MFAPP increased gradually as the MFR core‐shell ratio rose, and the electronegativity reduced significantly. When the core‐shell ratio increased from 0 to 10:1, its water contact angle (WCA) increased from 29.28° to 103.88°, and the solubility declined from 1.76 to 0.43 g/100 mL. For paper containing 25% MFAPP10:1 and 0.2% alkylketene dimer, the WCA increased from 108.49° to 115.41°, and the limiting oxygen index (LOI) enhanced from 31.2% to 36.5%. The char residue at 700°C increased from 11% to 17%, which consisted of crosslinked C–O–P/P–O–P, P–N–C/P–N–P, O–P═O/O═P–O–C. Therefore, MFAPP showed a significant enhancement in both the flame resistance and hydrophobic properties of cellulosic paper.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 1","pages":"268-281"},"PeriodicalIF":0.0,"publicationDate":"2025-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pen.70208","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147884774","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

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

Construction of Superhydrophobic Interface and Anticorrosion Mechanism of Basalt Flake/Fluorinated‐Epoxy‐Acrylic Composite Coating 玄武岩片状/氟化环氧丙烯酸复合涂层超疏水界面的构建及防腐机理

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-07 DOI: 10.1002/pen.70235

Chongwei Yin, Chao Wei, Genrong Li, Xun Zhang, Xuena Zhang, Fengqiang Zhang, Ting Wang, Fan Wu

{"title":"Construction of Superhydrophobic Interface and Anticorrosion Mechanism of Basalt Flake/Fluorinated‐Epoxy‐Acrylic Composite Coating","authors":"Chongwei Yin, Chao Wei, Genrong Li, Xun Zhang, Xuena Zhang, Fengqiang Zhang, Ting Wang, Fan Wu","doi":"10.1002/pen.70235","DOIUrl":"https://doi.org/10.1002/pen.70235","url":null,"abstract":"ABSTRACT This study addresses the issue of structural defects that often occur during the curing process of epoxy resin‐based anti‐corrosion coatings, which can compromise their barrier properties. A dual modification strategy of “resin matrix functionalization + filler interface engineering” is proposed. By synthesizing fluorinated acrylic resin and blending it with epoxy resin, the matrix is endowed with intrinsic hydrophobicity. Simultaneously, the surface of basalt flakes is graft‐modified using KH550 silane coupling agent and stearoyl chloride to construct a stable superhydrophobic interface. This synergistic system combines the physical shielding effect of basalt flakes with the low surface energy characteristics of fluorocarbon chains, forming a multi‐scale barrier structure. Through systematic characterization using SEM, FTIR, electrochemical impedance spectroscopy, salt spray testing, contact angle measurements, and bacterial adhesion experiments, significant improvements in the coating's corrosion resistance, superhydrophobicity, and anti‐fouling properties are validated.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 1","pages":"513-530"},"PeriodicalIF":0.0,"publicationDate":"2025-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147881602","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

Effect of High‐Efficiency Antioxidant on Storage Stability of Constant‐Viscosity Natural Rubber 高效抗氧剂对恒粘度天然橡胶贮存稳定性的影响

4区工程技术

Polymer Engineering and Science Pub Date : 2025-10-28 DOI: 10.1002/pen.70220

Defan Zeng, Wenfeng Peng, Y. Li, Fuquan Zhang, Xiaoxue Liao, Lusheng Liao

{"title":"Effect of High‐Efficiency Antioxidant on Storage Stability of Constant‐Viscosity Natural Rubber","authors":"Defan Zeng, Wenfeng Peng, Y. Li, Fuquan Zhang, Xiaoxue Liao, Lusheng Liao","doi":"10.1002/pen.70220","DOIUrl":"https://doi.org/10.1002/pen.70220","url":null,"abstract":"ABSTRACT Constant‐viscosity natural rubber (CV‐NR) has increased slowly in Mooney viscosity, initial plasticity, and macrogel during long‐term storage. To keep the constant viscosity property stabilizing for a long time, the CV‐NR was prepared by adding high‐efficiency water‐soluble antioxidants. The non‐rubber components and macroscopic structure were analyzed. The antioxidant performance of the sample was evaluated through the DPPH radical scavenging rate experiment. The change in microstructure and mesostructure was researched during accelerated storage. The results indicate that adding antioxidants does not affect the non‐rubber components or macroscopic structure of CV‐NR. D‐isoascorbic acid exhibits the strongest antioxidant performance in the DPPH radical scavenging rate experiment. Moreover, no significant change occurs in the microstructure and mesostructure after accelerated storage, which demonstrated excellent constant‐viscosity performance. CV‐NR containing tea polyphenol and D‐isoascorbic acid is expected to exhibit superior long‐term storage stability. This study proposed a novel approach for enhancing the storage stability of CV‐NR.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 1","pages":"386-395"},"PeriodicalIF":0.0,"publicationDate":"2025-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pen.70220","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892244","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

CQDs / ZIF ‐L Derivatives Modified PES Ultrafiltration Membranes: Achieving Excellent Self‐Cleaning and Antibacterial Properties CQDs / ZIF - L衍生物改性PES超滤膜：实现优异的自清洁和抗菌性能

4区工程技术

Polymer Engineering and Science Pub Date : 2025-10-22 DOI: 10.1002/pen.70200

Yanrui Cheng, Nan Yao, Yi Guo, Shifeng Ji, Yunqing Xing, Chunmei Gao

{"title":"<scp>CQDs</scp> / <scp>ZIF</scp> ‐L Derivatives Modified <scp>PES</scp> Ultrafiltration Membranes: Achieving Excellent Self‐Cleaning and Antibacterial Properties","authors":"Yanrui Cheng, Nan Yao, Yi Guo, Shifeng Ji, Yunqing Xing, Chunmei Gao","doi":"10.1002/pen.70200","DOIUrl":"https://doi.org/10.1002/pen.70200","url":null,"abstract":"ABSTRACT Membrane fouling remains a critical obstacle for the application of polyethersulfone (PES) ultrafiltration in industrial wastewater treatment. In this work, a novel multifunctional composite membrane was developed by co‐embedding carbon quantum dots (CQDs) and ZIF‐L‐derived carbon‐doped ZnO (C‐ZnO) nanoparticles into a PES matrix via the reverse thermally induced phase separation (RTIPS) method. The optimized membrane M3 contains 0.05 wt% CQDs and 0.02 wt% C‐ZnO. It exhibited a remarkably hydrophilic surface with a water contact angle of 51.8°. Compared to membranes fabricated by conventional non‐solvent induced phase separation (NIPS), the RTIPS method produced a structure with a highly porous surface and an interconnected sponge‐like support, effectively breaking the permeability‐selectivity trade‐off. The optimized composite membrane exhibited a superior pure water permeability of 1555 L m −2 h −1 while maintaining a high humic acid rejection of 91.9%. This membrane also demonstrated robust long‐term antifouling stability and a photocatalytic flux recovery rate of 65.8% under visible light. Furthermore, it achieved nearly 100% antibacterial activity against E. coli and S. aureus , attributed to a dual‐defense mechanism combining a physical hydration layer with the chemical action of photocatalysis and Zn 2+ release. These findings highlight the significant potential of this RTIPS‐fabricated CQDs/C‐ZnO/PES membrane as a robust solution for high‐performance wastewater treatment.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 1","pages":"190-203"},"PeriodicalIF":0.0,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915881","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

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

Regenerative Granular Hydrogels With Controlled On‐Demand Dissolution as Temporary Mechanical Barriers 可再生颗粒水凝胶与控制按需溶解作为临时机械屏障

4区工程技术

Polymer Engineering and Science Pub Date : 2025-10-22 DOI: 10.1002/pen.70115

Xing Liu, Shirley Liang, Yifu Long, Lizhu Wang

{"title":"Regenerative Granular Hydrogels With Controlled On‐Demand Dissolution as Temporary Mechanical Barriers","authors":"Xing Liu, Shirley Liang, Yifu Long, Lizhu Wang","doi":"10.1002/pen.70115","DOIUrl":"https://doi.org/10.1002/pen.70115","url":null,"abstract":"ABSTRACT Granular hydrogels with excellent injectability, thermal stability, and mechanical robustness have shown promise in applications such as drilling, hydraulic fracturing, and profile control. However, most existing granular hydrogels lack a combination of key functionalities—namely, re‐crosslinkability, mechanical robustness, and controlled dissolution—needed for subsurface energy engineering. Herein, we report the development of ionically regenerative granular hydrogels that can reassemble into strong bulk hydrogels, exhibit self‐growth upon the addition of new granules, and undergo on‐demand hydrolysis into water‐like fluids. The reconstructed bulk hydrogels demonstrate mechanical robustness comparable to their pristine counterparts. The re‐crosslinking process is synergistically regulated by salinity and temperature, enabling targeted fracture sealing. Introducing environmentally benign breakers, such as carbonate salts, to the reformed hydrogels yields low‐viscosity solutions similar to water. Furthermore, the choice of breaker dictates the hydrolysis kinetics, allowing for complete dissolution within tens of minutes. Petrophysical evaluations confirm the hydrogels' ability to reform, resist mechanical degradation under differential pressure, and fully dissolve when triggered. Overall, we demonstrate regenerative granular hydrogels that integrate re‐crosslinkability, self‐growth, mechanical durability, and tunable hydrolysis—making them well‐suited for advanced fracture treatment in petroleum engineering.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"65 11","pages":"6090-6100"},"PeriodicalIF":0.0,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147881184","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