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

Valorization of PET Waste Into Advanced Adsorbents for Pollutant Removal From Wastewater: A Review PET废弃物转化为高级吸附剂去除废水污染物的研究进展

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-08-01 Epub Date: 2026-06-04 DOI: 10.1002/app.70968

Deidamia Paredes, Paula Berton, Juan C. Villafranca, Sergio Fonrouge, Mabel Vega, Estefanía M. Martinis

{"title":"Valorization of PET Waste Into Advanced Adsorbents for Pollutant Removal From Wastewater: A Review","authors":"Deidamia Paredes, Paula Berton, Juan C. Villafranca, Sergio Fonrouge, Mabel Vega, Estefanía M. Martinis","doi":"10.1002/app.70968","DOIUrl":"https://doi.org/10.1002/app.70968","url":null,"abstract":"<p>Polyethylene terephthalate (PET), a widely used thermoplastic polymer, poses a growing environmental burden due to its high production volumes, resistance to degradation, and persistence in terrestrial and aquatic ecosystems. While conventionally viewed as a pollutant, PET's chemical composition, rich in carbon and low in mineral impurities, makes it a valuable raw material for the synthesis of carbonaceous adsorbents. This review examines the emerging strategies for converting PET waste into high-performance adsorbents for wastewater treatment applications, with an emphasis on scalable, energy-efficient methods such as pyrolysis, hydrothermal carbonization, catalytic conversion, and solvothermal processing. Particular attention is given to PET-derived porous carbons, nanocomposites, and metal–organic framework (MOF)-based materials, which exhibit high surface areas, tailored pore structures, and notable adsorption capacities for a diverse spectrum of pollutants, including pharmaceuticals, endocrine disruptors, dyes, pesticides, and heavy metals. By consolidating recent advances, this review underscores the dual environmental benefit of mitigating plastic pollution and enhancing wastewater remediation technologies. The valorization of PET through upcycling into functional adsorbents offers a sustainable, cost-effective path toward circular economy principles in environmental engineering.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 34","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.70968","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652468","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

Effect of Rubber-to-Plastic Ratio on POE/HDPE Thermoplastic Vulcanizates Prepared by Dynamic Vulcanization 胶塑比对动态硫化制备POE/HDPE热塑性硫化胶的影响

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-08-01 Epub Date: 2026-06-04 DOI: 10.1002/app.70969

Ruijun Zhang, Qiqi He, Junhua Li, Jianhua Qian

{"title":"Effect of Rubber-to-Plastic Ratio on POE/HDPE Thermoplastic Vulcanizates Prepared by Dynamic Vulcanization","authors":"Ruijun Zhang, Qiqi He, Junhua Li, Jianhua Qian","doi":"10.1002/app.70969","DOIUrl":"https://doi.org/10.1002/app.70969","url":null,"abstract":"<div>\u0000 \u0000 <p>Thermoplastic vulcanizates (TPVs) are attracting growing interest for their recyclability, low cost, and ease of processing. While polypropylene-based TPVs are well studied and partly commercialized, polyethylene-based systems remain underexplored. Polypropylene tends to degrade during dynamic vulcanization due to its tertiary carbon atoms, requiring stabilizers and complicating processing. In contrast, polyethylene offers better thermal stability and simpler processing, making it a promising alternative for developing cost-effective and high-performance TPVs. In this study, a series of TPVs based on polyolefin elastomer (POE) and high-density polyethylene (HDPE) were prepared via dynamic vulcanization using 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane (DBPH) as a crosslinking agent under optimized conditions. The effects of varying rubber-to-plastic ratios on the mechanical, rheological, and thermal properties were systematically investigated. As the POE content increased, torque and gel content rose, while melting/crystallization temperatures and crystallinity decreased. At a rubber-to-plastic ratio of 80:20, the TPV exhibited the best overall performance, with a tensile strength of 4.8 MPa, elongation at break of 282%, and hysteresis loss of 55%. Rheological measurements revealed strong crosslinked networks and good processability under shear. This study demonstrates the significant influence of rubber-to-plastic ratio on TPV properties and offers a practical route to developing high-performance, polyethylene-based thermoplastic elastomers.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 34","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652493","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

Silica-Coated Graphene Nanosheets for the Synergistic Optimization of Thermal Conductivity and Corrosion Protection in Epoxy Coatings 二氧化硅包覆石墨烯纳米片对环氧涂料导热性能和防腐性能的协同优化

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-08-01 Epub Date: 2026-06-04 DOI: 10.1002/app.70982

Wei-Wei Cong, Wen-Xuan Ma, Weili Li, Chao Feng, Zheng-Bai Zhao

{"title":"Silica-Coated Graphene Nanosheets for the Synergistic Optimization of Thermal Conductivity and Corrosion Protection in Epoxy Coatings","authors":"Wei-Wei Cong, Wen-Xuan Ma, Weili Li, Chao Feng, Zheng-Bai Zhao","doi":"10.1002/app.70982","DOIUrl":"https://doi.org/10.1002/app.70982","url":null,"abstract":"<div>\u0000 \u0000 <p>Graphene nanoplatelets (GNPs) hold great promise as functional fillers in polymer composites; however, their practical application is limited by poor dispersibility and interfacial compatibility within polymer matrices. In this study, GNPs were surface-modified via a tetraethyl orthosilicate (TEOS)/3-aminopropyltriethoxysilane (KH-550) sol–gel method to construct uniform silica-coated graphene nanosheets with a core–shell structure (GNP@SiO<sub>2</sub>). The resulting core–shell particles were incorporated into epoxy resin at 6, 12, and 18 wt% to prepare composite coatings. The 18 wt% GNP@SiO<sub>2</sub> coating exhibited a thermal conductivity of 0.38 W m<sup>−1</sup> K<sup>−1</sup>, an 81% increase over pure epoxy (0.21 W m<sup>−1</sup> K<sup>−1</sup>), and showed improved heat-dissipation behavior, as evidenced by infrared thermal imaging and surface temperature evolution under identical heating conditions. In corrosion protection, the 12 wt% coating showed optimal performance, achieving a low-frequency impedance modulus of 2.1 × 10<sup>11</sup> Ω cm<sup>2</sup> and a corrosion rate one order of magnitude lower than pure epoxy. Excessive filler (18 wt%) induced agglomeration and localized corrosion. This work demonstrates that GNP@SiO<sub>2</sub> content can be tailored to separately optimize thermal and anticorrosion properties, which represents a novel filler-content-based design strategy that avoids complex multicomponent systems. This approach offers practical relevance for developing multifunctional epoxy coatings with customizable performance profiles for applications such as electronic device heat dissipation and marine corrosion protection.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 34","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652494","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

Evaluation of the Efficiency of a Biobased Reactive Plasticizer on the Morphology and Properties of Sustainable Flexible Films Based on Poly(Lactic Acid) (PLA) Produced by Blown Film Extrusion 生物基活性增塑剂对吹膜挤出法制备聚乳酸（PLA）可持续柔性薄膜形态和性能的影响

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-08-01 Epub Date: 2026-06-06 DOI: 10.1002/app.70977

Norma Mallegni, Vito Gigante, Patrizia Cinelli, Andrea Lazzeri

{"title":"Evaluation of the Efficiency of a Biobased Reactive Plasticizer on the Morphology and Properties of Sustainable Flexible Films Based on Poly(Lactic Acid) (PLA) Produced by Blown Film Extrusion","authors":"Norma Mallegni, Vito Gigante, Patrizia Cinelli, Andrea Lazzeri","doi":"10.1002/app.70977","DOIUrl":"https://doi.org/10.1002/app.70977","url":null,"abstract":"<p>In the present work, sustainable bio-based films are successfully developed at a pilot scale after a careful screening phase, demonstrating thermal and mechanical properties comparable to conventional petrochemical plastics. The starting blend, used as a reference, consists of poly (lactic acid) (PLA), acetyl tributyl citrate (ATBC), and poly (butylene adipate-co-terephthalate) (PBAT). The matrix was melt-mixed with epoxy-functionalized plasticizers derived from cardanol, acting as plasticizers and compatibilizers. A comparative investigation of two epoxy additives (NC513 and NC514s) clarified their distinct roles: NC513 mainly acts as a plasticizer, reducing viscosity and enhancing ductility, whereas NC514s promotes reactive interactions, increasing melt strength and stiffness. A nucleating agent and a melt strength enhancer were subsequently optimized to improve processability. The most promising formulations were scaled up using a semi-industrial twin-screw extruder and processed via blown film extrusion, confirming technological feasibility. The resulting films exhibited tensile strengths of 27–29 MPa and elongation at break above 300%, with tear resistance comparable to LDPE films of similar thickness. These results demonstrate that low amounts (1–3 wt.%) of bio-based epoxy-functionalized cardanol enable the production of compostable flexible films as sustainable alternatives to petrochemical-based packaging materials.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 34","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.70977","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652502","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

NiZn Nanoparticles-Reinforced HDPE Composites: Structure–Property Relationships 纳米粒子增强HDPE复合材料：结构-性能关系

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-08-01 Epub Date: 2026-06-05 DOI: 10.1002/app.70981

K. Habanjar, Mohammad Ali Shaib, M. Y. El Sayed, Amro Obeid, Mohamed. I. Badawi, Ramy. M. Moussa, Mohamed. S. Badawi, R. Awad

{"title":"NiZn Nanoparticles-Reinforced HDPE Composites: Structure–Property Relationships","authors":"K. Habanjar, Mohammad Ali Shaib, M. Y. El Sayed, Amro Obeid, Mohamed. I. Badawi, Ramy. M. Moussa, Mohamed. S. Badawi, R. Awad","doi":"10.1002/app.70981","DOIUrl":"https://doi.org/10.1002/app.70981","url":null,"abstract":"<div>\u0000 \u0000 <p>HDPE nanocomposites reinforced with Ni-Zn ferrite (5% to 20%) filler were successfully created and characterized in terms of their structural, morphological, mechanical, and thermal properties. The development of a highly crystalline cubic spinel NiZn phase was validated by structural investigation. The NiZn volume percentage increased from 5.79% to 21.78% as the filler content increased, whereas the HDPE content decreased in tandem. While minor expansions in HDPE, lattice parameters suggested interfacial strain and nanoscale structural relaxation, the average crystallite size shrank from 39.31 to 28.04 nm. Significant reinforcement was shown in the mechanical testing at all strain rates. Young's modulus rose from 144.35 MPa for clean HDPE to 198.56 MPa for 20 wt% NiZn, and then to 232.14 MPa at 20 mm/min, an approximate 38% increase at 5 mm/min. Additionally, yield stress rose significantly from 16.48 to 28.62 MPa. But at higher loadings, elongation at break decreased significantly from 536% to about 34%, indicating decreased ductility brought on by stiff filler networks and particle agglomeration. <i>T</i>\u0000 <sub>5%</sub> increased from 425.85°C to 435.98°C, indicating improved thermal stability, according to thermogravimetric study. Overall, HDPE's stiffness, strength, and heat resistance are successfully increased by NiZn nanoparticles; the best mechanical performance is seen at filler loadings of 7.5–10 wt%.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 34","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148652500","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

Production and Validation of Cost-Effective Compatibilized Polybutylene Adipate Terephthalate (PBAT)—Polybutylene Succinate (PBS) Compounds for Thermoformed Trays 热成型托盘用增容型聚己二酸丁二酯(PBAT) -聚丁二酸丁二酯（PBS）化合物的生产与验证

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-07-21 Epub Date: 2026-06-03 DOI: 10.1002/app.70952

Annalisa Genovesi, Massimiliano Barletta

{"title":"Production and Validation of Cost-Effective Compatibilized Polybutylene Adipate Terephthalate (PBAT)—Polybutylene Succinate (PBS) Compounds for Thermoformed Trays","authors":"Annalisa Genovesi, Massimiliano Barletta","doi":"10.1002/app.70952","DOIUrl":"https://doi.org/10.1002/app.70952","url":null,"abstract":"<div>\u0000 \u0000 <p>Thermoformed plastic trays are extensively utilized in the food delivery sector and significantly contribute to landfill waste. The primary constraint on the widespread adoption of bioplastics in this domain is their elevated cost, which diminishes their market competitiveness. This study assessed the processability of compatibilized polybutylene adipate terephthalate (PBAT) and polybutylene succinate (PBS) with high talc loadings to mitigate costs. Talc was incorporated at 30 wt% (T733 formulation) and at 40 wt% (T734 formulation) within a PBAT/PBS 70/30 matrix. The blends were produced via twin screw extrusion and subsequently processed via cast extrusion and thermoforming to fabricate trays. These trays exhibit superior mechanical properties, as evidenced by the absence of breakage during compression testing, attributable to the highly flexible polymeric matrix. T734 demonstrated increased rigidity and reduced elongation at break, a consequence of the elevated talc content. Talc enhances the viscosity of the compounds. The measured melt flow rate (MFR) was 1.27 g/cm<sup>3</sup> for T733 and 0.90 g/cm<sup>3</sup> for T734, confirming the thermoformability of both compounds. By incorporating talc into compatibilized blends of PBAT and PBS, it is possible to produce bio-based trays with properties and costs comparable to those of currently used fossil-based alternatives.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 33","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532522","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

Study on the Preparation and Properties of PBT/RGO Nanocomposite via In Situ Polymerization 原位聚合法制备PBT/RGO纳米复合材料及其性能研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-07-21 Epub Date: 2026-06-04 DOI: 10.1002/app.70957

Qing Wang, Jiamin Wei, Yilan Liu, Guangyu He, Haiqun Chen

{"title":"Study on the Preparation and Properties of PBT/RGO Nanocomposite via In Situ Polymerization","authors":"Qing Wang, Jiamin Wei, Yilan Liu, Guangyu He, Haiqun Chen","doi":"10.1002/app.70957","DOIUrl":"https://doi.org/10.1002/app.70957","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel poly(butylene terephthalate)/reduced graphene oxide (PBT/RGO) nanocomposite was successfully fabricated via in situ polymerization modification using graphene oxide (GO) prepared by the modified Hummer's method as a reinforcing matrix and a self-synthesized water-resistant titanium-based catalyst. A distinct innovation of this work lies in the introduction of RGO to simultaneously regulate polymerization behavior, suppress side reactions, and enhance thermal conductivity and mechanical properties of PBT in one step. The effects of RGO loading on intrinsic viscosity, tetrahydrofuran (THF) content, thermal conductivity, color index, and mechanical performance were systematically investigated. Results demonstrate that the PBT/RGO composite achieves optimal comprehensive properties at a GO dosage of 0.15%. Compared with pure PBT, the intrinsic viscosity reaches 0.89 dL/g, indicating higher molecular weight. THF by-product is reduced to 6.75%, demonstrating inhibited side reactions and improved atom utilization. Thermal conductivity is enhanced to 0.467 W/(m K). The composite shows excellent color with <i>L</i> = 82.12 and <i>b</i> = 0.23. Tensile and flexural strengths are significantly increased by 80.12% and 51.41%, reaching 47.39 and 73.51 MPa, respectively. This work provides a feasible strategy for high-performance PBT, showing good potential in industrial production and high-end applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 33","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532539","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

Multifunctional Role of Phenolic Novolac in NBR Vulcanizates: From Cure Kinetics to Thermal Degradation Inhibition 酚醛酚醛在丁腈橡胶硫化胶中的多功能作用：从固化动力学到热降解抑制

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-07-21 Epub Date: 2026-06-04 DOI: 10.1002/app.70958

Mozhgan Chaichi, Azadeh Seifi, Ahmad Reza Bahramian

引用次数: 0

Quantification of Sulfonated Polyacrylamides by SEC-UV in Produced Water: Validation and Oilfield Case Study 用SEC-UV定量测定采出水中磺化聚丙烯酰胺：验证及油田实例研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-07-21 Epub Date: 2026-06-04 DOI: 10.1002/app.70955

Eduardo José Creatto, Luis Maqueira, Daniel da Silva Vicente, Thierry Leblanc, Nathaniel Terra, Lara Arinelli, Aurora Pérez-Gramatges

{"title":"Quantification of Sulfonated Polyacrylamides by SEC-UV in Produced Water: Validation and Oilfield Case Study","authors":"Eduardo José Creatto, Luis Maqueira, Daniel da Silva Vicente, Thierry Leblanc, Nathaniel Terra, Lara Arinelli, Aurora Pérez-Gramatges","doi":"10.1002/app.70955","DOIUrl":"https://doi.org/10.1002/app.70955","url":null,"abstract":"<p>Polymer flooding is an oil recovery technique with environmental and operational benefits, yet accurate quantification of back-produced polymer (BPP) in produced water remains a challenge. This study reports the development and validation of a sensitive and field-applicable size exclusion chromatography method with ultraviolet detection (SEC-UV) for trace-level quantification of sulfonated polyacrylamides (S-PAM). The method achieved limits of detection and quantification of 2.1 and 6.4 mg L<sup>−1</sup>, respectively, in oilfield-produced water, significantly outperforming SEC with refractive index detection, which is limited to concentrations above 100 mg L<sup>−1</sup>. Incorporation of a controlled ultrasonication pretreatment minimized errors from polymer degradation, reducing relative errors from up to 42% to as low as 4%–14%. Intralaboratory blind tests confirmed high accuracy (relative errors < 5%), while interlaboratory comparisons demonstrated reliability for trace-level analysis. Field application further showed the method's capability to detect polymer breakthrough and monitor BPP concentration trends at the wellhead, with results aligning with predictive reservoir models. Overall, this work establishes SEC-UV as a validated reference method for low-mg L<sup>−1</sup> S-PAM quantification, addressing matrix complexity and degradation challenges. Its demonstrated accuracy and sensitivity support both operational decision-making in polymer flooding pilots and environmental monitoring of produced water, with potential for extension to other PAM-based polymers.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 33","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.70955","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532542","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

Processing-Controlled Impact Toughening and Degradation Response of PLA-PU-DMA Blends: Morphology–Property Relationships Under Kinetic Mixing and Extrusion PLA-PU-DMA共混物的加工控制冲击增韧和降解响应：动力学混合和挤出下的形态-性能关系

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-07-21 Epub Date: 2026-06-02 DOI: 10.1002/app.70959

Rana Al Nakib, Gizem Arıtürk, Yeşim Aslan, Yusuf Ziya Menceloğlu

{"title":"Processing-Controlled Impact Toughening and Degradation Response of PLA-PU-DMA Blends: Morphology–Property Relationships Under Kinetic Mixing and Extrusion","authors":"Rana Al Nakib, Gizem Arıtürk, Yeşim Aslan, Yusuf Ziya Menceloğlu","doi":"10.1002/app.70959","DOIUrl":"https://doi.org/10.1002/app.70959","url":null,"abstract":"<div>\u0000 \u0000 <p>Polylactic acid (PLA) is an attractive bio-based polymer, but its low impact resistance limits its use in demanding applications. This study investigates how processing route controls phase morphology, impact dissipation, and early-stage degradation behavior in ternary PLA-polyurethane-poly(dimethyl acrylate) (PLA-PU-DMA, 60-30-10 wt%) blends. The blends were prepared by twin-screw extrusion and kinetic mixing to compare shear-driven and friction-driven compounding. Kinetic mixing produced finer and more homogeneous dispersion of the elastomeric and acrylate phases, increasing notched Izod impact strength to 27.6 kJ m<sup>−2</sup>, more than twice that of the extruded counterpart. Morphological and mechanical analyses indicate that this improvement arises from enhanced interfacial continuity and activation of cavitation–shear yielding mechanisms. Thermal and rheological characterization confirmed the dependence of crystallization behavior, melt response, and processability on processing-induced microstructure. Soil-burial experiments over 3 months showed no significant mass loss, although thermal and mechanical changes indicated early-stage degradation sensitivity. Overall, the results demonstrate that processing-controlled morphology, rather than composition alone, is decisive for achieving impact toughening while maintaining early-stage degradation sensitivity in PLA-based ternary blends.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 33","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532863","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