Journal of Applied Polymer Science最新文献_第10页

Enhancing Flexibility and Adhesion of PVDF Coatings on PVC Textiles via PVDF/PMMA/Plasticizer Blends 通过PVDF/PMMA/增塑剂共混提高PVC纺织品上PVDF涂层的柔韧性和附着力

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-05-02 DOI: 10.1002/app.57176

Anya Sonnendecker, Johan Labuschagne

{"title":"Enhancing Flexibility and Adhesion of PVDF Coatings on PVC Textiles via PVDF/PMMA/Plasticizer Blends","authors":"Anya Sonnendecker, Johan Labuschagne","doi":"10.1002/app.57176","DOIUrl":"https://doi.org/10.1002/app.57176","url":null,"abstract":"<p>This study investigated improving the flexibility and adhesion of polyvinylidene fluoride (PVDF) coatings on polyvinyl chloride (PVC) textiles by blending PVDF with polymethyl methacrylate (PMMA) and adding plasticizers. Because PVDF is inherently stiff, blends were prepared with 10 wt%, 30 wt%, and 50 wt% PMMA. Four plasticizers—di(propylene glycol) dibenzoate (P2), dibutyl phthalate (P3), di(ethylene glycol) dibenzoate (P4), and benzyl butyl phthalate (P5)—were also incorporated into 10 wt% PMMA blends. Thin films and coatings were produced via solution casting and dip-coating, then characterized using differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMA), and scanning electron microscopy (SEM). A 10 wt% PMMA concentration improved adhesion and raised crystallinity (46.95% versus 30.87% for pure PVDF), while higher PMMA resulted in amorphous structures. Plasticizers lowered melting temperatures by up to 12°C and glass transition temperatures by up to 81.4°C (for P3), increasing flexibility. SEM revealed that plasticizers P3 and P4 generated uniform, nonporous morphologies, making them promising for UV-protective coatings. These blends maintained strong adhesion to PVC and demonstrated good mechanical performance. Further studies on UV stability are advised to confirm their long-term durability. DSC indicated increased thermal stability in PVDF/PMMA blends, while DMA confirmed enhanced mechanical integrity and material performance.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 29","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.57176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331859","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

Biobased Derivatives From Olive Oil for Tuning Physically Crosslinked Poly(Vinyl Alcohol) Hydrogel Properties 用于调整物理交联聚乙烯醇水凝胶性质的橄榄油生物基衍生物

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-05-02 DOI: 10.1002/app.57249

Francisca Werlinger, Valentino Cárdenas-Toledo, Pablo Uribe, Silvia Oyarzo-Aro, Víctor Mayorga, José Luis Obando, Aníbal Concha-Meyer, Alfredo Pereira, Javier Martínez, Oleksandra S. Trofymchuk, Mario E. Flores

{"title":"Biobased Derivatives From Olive Oil for Tuning Physically Crosslinked Poly(Vinyl Alcohol) Hydrogel Properties","authors":"Francisca Werlinger, Valentino Cárdenas-Toledo, Pablo Uribe, Silvia Oyarzo-Aro, Víctor Mayorga, José Luis Obando, Aníbal Concha-Meyer, Alfredo Pereira, Javier Martínez, Oleksandra S. Trofymchuk, Mario E. Flores","doi":"10.1002/app.57249","DOIUrl":"https://doi.org/10.1002/app.57249","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents the preparation and characterization of physically crosslinked polyvinyl alcohol (PVA)-based hydrogels via the freeze–thawing method, incorporating olive oil and its derivatives, specifically epoxides and diols. The derivatives were synthesized from olive oil using a mixture of formic acid and hydrogen peroxide as oxidants and were characterized through <sup>1</sup>H-NMR and FT-IR spectroscopy. Hydrogels were formulated by freezing 10 wt% PVA solutions containing varying concentrations (1 or 5 wt%) of olive oil or its derivatives for 24 h, followed by thawing at room temperature overnight. The surface morphology, mechanical strength, thermal stability, and antibacterial properties of the resulting PVA hydrogels were systematically evaluated, and the influence of the chemical structure of the olive oil derivative on the PVA hydrogel mechanical properties was discussed and supported by molecular dynamics simulations.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 31","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573230","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

Polyurethane Material With Rapid Self-Healing Ability and Shape Recovery Performance 具有快速自愈能力和形状恢复性能的聚氨酯材料

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-05-02 DOI: 10.1002/app.57261

Jiahui Zhong, Shulin Zhao, Yan Zhou, Xiangdong Liu, Yuming Yang

引用次数: 0

Mechanically Robust and Highly Transparent Polyurethane Elastomer With Excellent Adhesion Enabled by Hierarchical Hydrogen Bonds 机械坚固和高度透明的聚氨酯弹性体，具有优异的附着力，由分层氢键实现

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-05-02 DOI: 10.1002/app.57281

Chenrui Zhang, Qingchuang Lu, Meng Song, Zhenyang Luo, Lei Duan, Yanlong Luo

{"title":"Mechanically Robust and Highly Transparent Polyurethane Elastomer With Excellent Adhesion Enabled by Hierarchical Hydrogen Bonds","authors":"Chenrui Zhang, Qingchuang Lu, Meng Song, Zhenyang Luo, Lei Duan, Yanlong Luo","doi":"10.1002/app.57281","DOIUrl":"https://doi.org/10.1002/app.57281","url":null,"abstract":"<div>\u0000 \u0000 <p>Many high-strength polyurethane materials have been developed in the past, but combining other functionalities such as high transparency, adhesion, and self-healing properties is still a great challenge. We prepare a mechanically robust polyurethane elastomer with high transparency and self-healability. The relationship between its structure and properties is elaborated. Acylsemicarbazide (ASCZ) and urethane groups are introduced into the hard segments of the polyurethane elastomer, and by modulating the spacer groups between the ASCZ and urethane groups, the fine modulation for the hydrogen bonding density and the hard domain size is realized. By the exquisite regulation of molecular structure, the HMDI-SPH elastomer with sebacic dihydrazide (SPH) as the chain extender, polytetramethylene ether glycol (PTMEG) as the soft segments, and methylene-bis(4-cyclohexyl isocyanate) (HMDI) as the isocyanate can achieve a high elasticity due to the rich and hierarchical hydrogen bonds. Such hydrogen bonds impede the crystallization of PTMEG and facilitate the formation of homogeneously distributed hard-phase microdomains. The HMDI-SPH elastomer exhibits good mechanical robustness (tensile strength of 45.7 MPa, toughness of ~140.8 MJ m<sup>−3</sup>), transparency (transmittance > 95%), and self-healing (self-healing efficiency of 86.6%). Meanwhile, HMDI-SPH has good adhesive strength on a variety of substrates such as walnut (~10.81 MPa) and steel (~14.60 MPa).</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 32","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615286","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

Synergistically Improved Interlaminar Fracture Toughness and Thermal Properties of CF/EP Composites With PEEK and MWCNTs Interleaves PEEK和MWCNTs交织层对CF/EP复合材料层间断裂韧性和热性能的协同改善

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-05-01 DOI: 10.1002/app.57222

Xuejian Jiao, Wenqing Ge, Lanfei Sun, Huanyu Wang, Luyu He

{"title":"Synergistically Improved Interlaminar Fracture Toughness and Thermal Properties of CF/EP Composites With PEEK and MWCNTs Interleaves","authors":"Xuejian Jiao, Wenqing Ge, Lanfei Sun, Huanyu Wang, Luyu He","doi":"10.1002/app.57222","DOIUrl":"https://doi.org/10.1002/app.57222","url":null,"abstract":"<div>\u0000 \u0000 <p>The low interlaminar fracture toughness and thermal properties of carbon fiber/epoxy resin (CF/EP) composites limit their applications in harsh environments. Synergetic improvement of the interlaminar fracture toughness and thermal conductivity of CF/EP is a challenging research job. In this paper, the surface of CF/EP prepregs was coated by multiwalled carbon nanotubes (MWCNTs) and PEEK, and then the modified CF/EP laminates were prepared by compression molding process. The effects of MWCNTs and PEEK on the mechanical properties and thermal properties of CF/EP laminates were investigated. The results showed that the type II interlaminar fracture toughness, impact strength, and thermal conductivity of the CF/EP laminates synergistically modified by 0.5 wt% MWCNTs, and 2 wt% PEEK reached 1404 J/m<sup>2</sup>, 277 J/m<sup>2</sup>, 0.89 W·m<sup>−1</sup>·K<sup>−1</sup> at 100°C, which were 81%, 42% and 82% higher than that of unmodified CF/EP laminate, respectively. And thermal stability of CF/EP laminate was improved. The addition of MWCNTs and PEEK reduces the loss factor of CF/EP laminates. This work is of great significance to realize the integration of structure and function of composite materials in the high-performance applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 30","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520083","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 Role of Isocyanate Index and Flame Retardant in Reducing CO(g) and Smoke Emissions of Soy-Based Rigid Polyisocyanurate Foams 异氰酸酯指数和阻燃剂在降低大豆基刚性聚异氰酸酯泡沫CO(g)和烟雾排放中的作用

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-04-30 DOI: 10.1002/app.57274

Cecilia Daniela Teilletche, Marcin Borowicz, Joanna Paciorek-Sadowska, Marek Isbrandt, Leonel Matias Chiacchiarelli

{"title":"The Role of Isocyanate Index and Flame Retardant in Reducing CO(g) and Smoke Emissions of Soy-Based Rigid Polyisocyanurate Foams","authors":"Cecilia Daniela Teilletche, Marcin Borowicz, Joanna Paciorek-Sadowska, Marek Isbrandt, Leonel Matias Chiacchiarelli","doi":"10.1002/app.57274","DOIUrl":"https://doi.org/10.1002/app.57274","url":null,"abstract":"<div>\u0000 \u0000 <p>Enhancing the flame retardancy of bio-based rigid polyurethane foams (RPUFs) is a crucial step toward improving the sustainability of the polyurethane industry. In this work, we systematically analyzed the effect of increasing the isocyanate index (NCO<sub>index</sub>) and the flame retardant (FR) content using a polyol with high renewable content (> 97 wt.%). We found outstanding results regarding the CO<sub>(g)</sub>/CO<sub>2(g)</sub> index, the most important safety parameter in terms of human safety, whereas a significant reduction of 78% and 69.6% was observed as a function of increasing the NCO<sub>index</sub> and FR content, respectively. In addition, the FR did not cause an increase in the total smoke production (TSP); on the contrary, it decreased up to 31.4% after increasing the FR concentration. The MAHRE parameter was also substantially improved, up to 40.6%, indicating the formation of a thicker char layer that protected the foam during burning. This was achieved simultaneously with outstanding improvements in the specific compressive strength of up to +155%. The studies were substantiated by a comprehensive physicochemical characterization using TGA analysis, water absorption, initial thermal conductivity, FTIR analysis, and cell geometry using SEM. These results are of paramount importance to promote the use of bio-based RPUFs with enhanced fire retardancy.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 32","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615383","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

Porous Ultra-High Molecular Weight Polyethylene Membrane Prepared by One- and Two-Step Biaxially Stretching Method 一步和两步双向拉伸法制备多孔超高分子量聚乙烯膜

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-04-30 DOI: 10.1002/app.57271

Jiayou Quan, Lingling Tang, Xinwei Wang, Junrong Yu, Zuming Hu

{"title":"Porous Ultra-High Molecular Weight Polyethylene Membrane Prepared by One- and Two-Step Biaxially Stretching Method","authors":"Jiayou Quan, Lingling Tang, Xinwei Wang, Junrong Yu, Zuming Hu","doi":"10.1002/app.57271","DOIUrl":"https://doi.org/10.1002/app.57271","url":null,"abstract":"<div>\u0000 \u0000 <p>Volatile decalin as a solvent to prepare porous UHMWPE membrane is explored in this paper. Capillary force will lead to pore collapse, so decalin cannot be volatiled in the drawing process, and it must be removed as much as possible before biaxially stretching. However, without lubricating of solvent, the orientation of the polymer chain becomes difficult. So, after the investigation of one-step drawing conditions, including the drawing temperature, speed, ratio, and heat-setting temperature, the best prepared membrane (HT135) has a low tensile strength of 75.6 MPa but a high Gurley value of 49.8 s/100 mL and porosity of 61.7%. Then, a two-step drawing method was proposed to fabricate the UHMWPE membrane. In 2nd drawing process, the raised temperature will improve the movement of the polymer chains. After 2nd drawing, the membrane (1.2UPE/2) tensile strength is increased to 187.0 MPa and has a Gurley value of 72.5 s/100 mL and porosity of 36.7%. Moreover, the addition of a nucleating agent and using high molecular UHMWPE resin are beneficial for the preparation of higher tensile strength and uniform morphology membranes, respectively.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 32","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615384","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 High-Performance BTO/PVDF Piezoelectric Pressure Sensors Based on Soybean Rhizobacteria Mimicry Using Electrostatic Spinning-Thermal Pressing Method 静电纺丝-热压法制备基于大豆根杆菌的高性能BTO/PVDF压电压力传感器

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-04-30 DOI: 10.1002/app.57283

Limei Zhang, Yi Jiang, Hao Gu, Zhengyang Ji, Junlai Jiang, Yanling Cao, Jinyu Gao, Bo Jiang

{"title":"Preparation of High-Performance BTO/PVDF Piezoelectric Pressure Sensors Based on Soybean Rhizobacteria Mimicry Using Electrostatic Spinning-Thermal Pressing Method","authors":"Limei Zhang, Yi Jiang, Hao Gu, Zhengyang Ji, Junlai Jiang, Yanling Cao, Jinyu Gao, Bo Jiang","doi":"10.1002/app.57283","DOIUrl":"https://doi.org/10.1002/app.57283","url":null,"abstract":"<div>\u0000 \u0000 <p>As an ideal flexible polymer piezoelectric material, PVDF material has a broad application prospect in pressure sensing, health monitoring, and so forth. However, traditional PVDF-based sensors usually suffer from problems such as low open-circuit voltage and slow deformation recovery. In this paper, inspired by the beaded structure of soybean rhizobial fungus, we used the strategy of combining electrostatic spinning and hot-pressing technology to construct a BTO/PVDF piezoelectric film. Specifically, PVDF is used as the substrate and doped with BTO particles to prepare a beaded internal structure. Then, hot pressing was performed to enhance the β-crystalline phase ratio of PVDF to increase the piezoelectric performance of the device. The sensors prepared by this method possess a high sensitivity of 25.23 mV/kPa in the 0–5 kPa range. The fast response time is 86 ms, and the recovery time is 57 ms, maintaining high cycling stability above 92% under loading and unloading for more than 10,000 cycles. Finite element numerical simulation analysis confirms that the BTO/PVDF piezoelectric thin films prepared by this process have excellent sensing performance. Integrating the device with a data acquisition and processing module can easily detect various life activities of the human body, which has great potential in flexible electronic skin, motion acquisition, and so on.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 32","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615387","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

Effect of Processing History on Flow-Induced Crystallization of Polyethylene With Long-Chain Branches 加工历史对长链聚乙烯流动诱导结晶的影响

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-04-30 DOI: 10.1002/app.57259

Kenta Komatsu, Naoki Yamano, Masayuki Yamaguchi

引用次数: 0

Polymer Flooding Dynamics in Enhanced Oil Recovery: A Pore-Scale Study of the Influence of Shear-Thinning Rheology on Flow Dynamics and Recovery Efficiency 提高采收率的聚合物驱动力学：剪切减薄流变学对流动动力学和采收率影响的孔隙尺度研究

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2025-04-30 DOI: 10.1002/app.57189

Ebuka David, Steven R. McDougall, Eric J. Mackay, Precious Ogbeiwi

{"title":"Polymer Flooding Dynamics in Enhanced Oil Recovery: A Pore-Scale Study of the Influence of Shear-Thinning Rheology on Flow Dynamics and Recovery Efficiency","authors":"Ebuka David, Steven R. McDougall, Eric J. Mackay, Precious Ogbeiwi","doi":"10.1002/app.57189","DOIUrl":"https://doi.org/10.1002/app.57189","url":null,"abstract":"<p>This study addresses the limited understanding of how shear-thinning polymer rheology influences enhanced oil recovery (EOR) at the pore scale. Using a pore network model and the Carreau rheological model, the impact of shear thinning under varying wettability, dilution, flow rates, and mobility ratios is examined. Results show that shear thinning strongly affects displacement patterns, with significant viscous fingering and reduced recovery efficiency at high shear rates, as viscosity declines within pore spaces. In contrast, minimal shear-thinning effects lead to stable displacement fronts, resembling a shear-independent flood with improved recovery. Higher oil viscosities exacerbate the impact of shear thinning, with reduced oil recovery in the presence of more severe shear-thinning polymers. In oil-wet systems, capillary forces counteract shear-thinning effects, promoting uniform displacement. The results also show that higher injection rates do not guarantee better recovery when shear thinning is present, as excessive shear may reduce polymer viscosity. Optimal recovery occurs at lower flow rates, where the polymer maintains higher viscosity and displacement fronts remain stable. This work highlights the importance of incorporating realistic shear-thinning behavior in polymer flooding models to enhance the predictive accuracy of EOR simulations and improve understanding of how polymer rheology influences pore-scale mechanisms in oil recovery.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 29","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.57189","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331983","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