Polymer Engineering and Science最新文献_第2页

High‐Voltage Electrothermal and De‐Icing Performance of Separated Structured Carbon Black/Silicone Rubber Composites Exhibiting Electric Field Emission 具有电场发射特性的分离结构炭黑/硅橡胶复合材料的高压电热和除冰性能

4区工程技术

Polymer Engineering and Science Pub Date : 2025-12-19 DOI: 10.1002/pen.70326

Xiaoli Wu, Y. Liao, Wanxia Huang

{"title":"High‐Voltage Electrothermal and De‐Icing Performance of Separated Structured Carbon Black/Silicone Rubber Composites Exhibiting Electric Field Emission","authors":"Xiaoli Wu, Y. Liao, Wanxia Huang","doi":"10.1002/pen.70326","DOIUrl":"https://doi.org/10.1002/pen.70326","url":null,"abstract":"ABSTRACT Internal electric field emission has been reported to occur when carbon blacks (CBs) are separated by a narrow insulating gap in previous researches. However, the electrothermal performance (ETP) of composites incorporating spatially separated CBs remains unexplored. Herein, a record‐high ETP at high‐voltage (power density [Pd] up to 4.94 W/cm 2 at 1000 V) is obtained by fabricating a non‐percolative structure super‐conductive carbon black (SCB)/methyl vinyl silicone rubber (MVQ110‐2) composite, significantly surpassing that of SCB/XLPE, CNT‐based, and rGO‐based composites. This results in a temperature increase up to 114°C. The outstanding ETP at high‐voltage arises from Joule heating generated by electric field emission effect among the isolated SCB aggregates, combined with high electrical breakdown resistance. This resistance is attributed to the separated structure, low dielectric constant of MVQ110‐2, and strong interfacial bonding between SCB particles and the polymer matrix. Combined with high breakdown voltage and efficient Joule heating, a de‐icing efficiency of 4.6 min at −20°C is achieved at 1000 V for the 2.1 vol.% SCB/MVQ110‐2 composite. Furthermore, these composites possess excellent flexibility at −20°C. Therefore, it can be concluded that these SCB/MVQ110‐2 composites are promising for high‐voltage electrothermal de‐icing applications, such as on transmission lines.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 3","pages":"2038-2050"},"PeriodicalIF":0.0,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pen.70326","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905662","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

Synergistic Dielectric‐Magnetic Design of EGaIn/TPU/Fe ₃ O ₄ Flexible Composites for Microwave Absorption 微波吸收用EGaIn/TPU/ fe3o4柔性复合材料的介磁协同设计

4区工程技术

Polymer Engineering and Science Pub Date : 2025-12-16 DOI: 10.1002/pen.70324

Huiqiao Xu, Kaijun Wang, Yunping Li, Jing Wang, Jiale Wu, Jiangfeng Mou, Rui Chen, Yafei Wang, Xinyue Wang, Jin Hu

{"title":"Synergistic Dielectric‐Magnetic Design of <scp> EGaIn/TPU/Fe 3 O 4 </scp> Flexible Composites for Microwave Absorption","authors":"Huiqiao Xu, Kaijun Wang, Yunping Li, Jing Wang, Jiale Wu, Jiangfeng Mou, Rui Chen, Yafei Wang, Xinyue Wang, Jin Hu","doi":"10.1002/pen.70324","DOIUrl":"https://doi.org/10.1002/pen.70324","url":null,"abstract":"ABSTRACT To overcome the challenges of insufficient flexibility and limited absorption performance in conventional electromagnetic wave (EMW) absorbers, this study synthesized a flexible ternary composite composed of EGaIn/TPU/Fe 3 O 4 via ultrasonic dispersion and magnetic stirring encapsulation. Due to the synergistic interaction between the liquid metal conductive network, Fe 3 O 4 magnetic loss units, and the elastic TPU matrix, the composite simultaneously exhibits excellent mechanical flexibility and EMW absorption. With 5 vol% Fe 3 O 4 loading, the composite achieves a minimum reflection loss (RL min ) of −41.4 dB and an effective absorption bandwidth (EAB) of 2.25 GHz at 1.5 mm, while maintaining outstanding mechanical properties (including tensile strength of 10.9 MPa, elongation at break of 658.7%, and elastic modulus of 3.56 MPa). This “conductive‐magnetic‐flexible” synergistic design provides valuable guidance for the developing of next‐generation flexible stealth coatings and wearable electromagnetic shielding materials.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 3","pages":"2008-2021"},"PeriodicalIF":0.0,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883839","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

Mechanical Property and Thermal Stability of Polyurethane/Epoxy Resin Composites With Fast Curing at Room Temperature 室温快速固化聚氨酯/环氧树脂复合材料的力学性能和热稳定性

4区工程技术

Polymer Engineering and Science Pub Date : 2025-12-10 DOI: 10.1002/pen.70293

Yulu Yang, Changhao Li, Yuxin Li, Jingming Tang, Dezhi Han, Ruiyang Zhao, Qinqin Zhang

{"title":"Mechanical Property and Thermal Stability of Polyurethane/Epoxy Resin Composites With Fast Curing at Room Temperature","authors":"Yulu Yang, Changhao Li, Yuxin Li, Jingming Tang, Dezhi Han, Ruiyang Zhao, Qinqin Zhang","doi":"10.1002/pen.70293","DOIUrl":"https://doi.org/10.1002/pen.70293","url":null,"abstract":"ABSTRACT The epoxy resin (EP) was modified with polyurethane (PU), and the PU/EP material was cured by the curing agent to enhance its mechanical strength and toughness, compensating for the limitations of EP in pavement crack repair applications. To investigate the effect of PU on EPs, the PU‐modified EPs were prepared with the equivalent ratio of isocyanate group to hydroxyl group of 8 and a reaction temperature of 50°C. Then four different curing agents, triethylenetetramine, maleic anhydride, diethylenetriamine, and 1, 6‐hexamethylenediamine, were used to cure the PU/EP materials at room temperature. The mechanical results demonstrated that the addition of PU prepolymer significantly improved the tensile and flexural properties of the EP, especially triethylenetetramine‐cured and diethylenetriamine‐cured PU/EP materials, increased by 60.1%, 107% and 91.6%, 32.3% respectively. Thermogravimetric and differential scanning calorimetry analyses showed that the PU prepolymer enhanced the heat resistance of the EP material and there was outstanding compatibility between the PU prepolymer and the EP, with the PU component effectively reducing the agglomeration of the EPs during the curing process. The favorable mechanical properties and thermal stability of PU/EP materials benefit from the formation of an interpenetrating network structure and the addition of aliphatic amine curing agents.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"1393-1402"},"PeriodicalIF":0.0,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pen.70293","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147888562","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

Structurally Intelligent Recognition and Enrichment of Photo‐Responsive Dual‐Monomer Imprinted Polymers for β‐Sitosterol in Camellia Oil 茶油中β -谷甾醇光响应双单体印迹聚合物的结构智能识别和富集

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-21 DOI: 10.1002/pen.70256

Yuling Chen, Yunong Tian, Jiahao Ouyang, Xuan He, Bo Wang, Dandan Li, Yong Ye

{"title":"Structurally Intelligent Recognition and Enrichment of Photo‐Responsive Dual‐Monomer Imprinted Polymers for β‐Sitosterol in Camellia Oil","authors":"Yuling Chen, Yunong Tian, Jiahao Ouyang, Xuan He, Bo Wang, Dandan Li, Yong Ye","doi":"10.1002/pen.70256","DOIUrl":"https://doi.org/10.1002/pen.70256","url":null,"abstract":"ABSTRACT To address the challenge of selectively extracting β‐sitosterol from Camellia oil—a complex, lipid‐rich matrix containing structurally similar sterols—a photo‐responsive molecularly imprinted polymer (MIP) was developed using a hybrid functional monomer system. Functional monomers were systematically screened via UV–Vis spectroscopy and density functional theory (DFT) to ensure molecular‐level selectivity and optimal cavity matching. The imprinting system combined methacrylic acid (MAA) with either acrylamide (AAm) or 3‐aminopropyltriethoxysilane (APTES), introducing synergistic hydrogen bonding and π‐π stacking. A photo‐responsive azobenzene monomer enabled reversible photo‐isomerization under 365/440 nm light, allowing precise spatiotemporal control of β‐sitosterol adsorption/release. Co‐assembly behavior was validated by 1 H‐NMR spectroscopy. The MIPs were characterized by FT‐IR, XPS, TGA, SEM, BET, DSC and UV‐DRS, while molecular docking elucidated the photo‐responsive mechanism. Adsorption performance was evaluated using isothermal, kinetic, and thermodynamic models, alongside imprinting factor analysis. When applied to solid‐phase extraction (SPE) from crude Camellia oil, the MIPs exhibited excellent selectivity, reusability, and enrichment efficiency. The maximum adsorption capacity reached 11.02 mg/g, and β‐sitosterol purity increased to 78.3% ~ 82.1%. This work offers a green, reusable, and light‐controllable platform for selective sterol recovery from edible oil systems.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"1007-1024"},"PeriodicalIF":0.0,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pen.70256","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147897880","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

Tribological Modification of Fused Deposition Modeled PEEK by Metal–Organic Frameworks of ZIF ‐62 ZIF - 62金属有机骨架对熔融沉积PEEK的摩擦学改性研究

4区工程技术

Polymer Engineering and Science Pub Date : 2025-11-19 DOI: 10.1002/pen.70257

Xinru Yan, Yan Wang, Yaoming Zhang, Qihua Wang, Zhancheng Zhang, Mingchao Shao, Xianqiang Pei

{"title":"Tribological Modification of Fused Deposition Modeled <scp>PEEK</scp> by Metal–Organic Frameworks of <scp>ZIF</scp> ‐62","authors":"Xinru Yan, Yan Wang, Yaoming Zhang, Qihua Wang, Zhancheng Zhang, Mingchao Shao, Xianqiang Pei","doi":"10.1002/pen.70257","DOIUrl":"https://doi.org/10.1002/pen.70257","url":null,"abstract":"ABSTRACT To address the demand for lightweight, wear‐resistant PEEK friction materials in humanoid robotics, this study employed liquid‐assisted mechanochemical synthesis to create ZIF‐62 crystals. These crystals were then incorporated as functional fillers into PEEK to fabricate ZIF‐62/PEEK composites using fused deposition modeling (FDM) technology. The analysis explored how the material's properties related to mechanics and wear are affected by the amount of ZIF‐62 (1–3 wt.%), utilizing pin‐on‐ring friction tests with GCr15 steel rings as the counterface. The tribological mechanisms of the composites were explored by analyzing the morphology of the composites' surfaces after wear, along with the morphology and chemical composition of the transfer films developed on the matching surface. Particular emphasis was placed on the impact of interfacial tribochemical reactions and transfer film establishment on the composite's tribological performance. Research indicates that the integration of ZIF‐62 boosts the composite's strength and ability to withstand wear. Specifically, at a ZIF‐62 concentration of 3 wt.%, the composites reach 3.7 × 10 −6 mm 3 /Nm, representing a 71.5% decline compared to pure PEEK, showcasing outstanding anti‐wear capabilities. Findings of the study provide a unique solution for the tribological modification of PEEK, which is instructive for the design and preparation of PEEK tribo‐materials used in humanoid robots.","PeriodicalId":20281,"journal":{"name":"Polymer Engineering and Science","volume":"66 2","pages":"1025-1038"},"PeriodicalIF":0.0,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918599","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