Polymer Bulletin最新文献_第4页

Mechanical, wear, flammability, and thermal conductivity behaviour of epoxy composites reinforced with bottle gourd stem cellulose and chopped grape stem fibers 用葫芦茎纤维素和葡萄茎纤维增强的环氧复合材料的机械、磨损、可燃性和导热性能

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-29 DOI: 10.1007/s00289-026-06714-w

G. Gokilakrishnan, G. Mahendran, N. Gobu, V. Narasimharaj

{"title":"Mechanical, wear, flammability, and thermal conductivity behaviour of epoxy composites reinforced with bottle gourd stem cellulose and chopped grape stem fibers","authors":"G. Gokilakrishnan, G. Mahendran, N. Gobu, V. Narasimharaj","doi":"10.1007/s00289-026-06714-w","DOIUrl":"10.1007/s00289-026-06714-w","url":null,"abstract":"<div><p>To develop epoxy-based composites suitable for various engineering applications requiring high mechanical strength, superior wear resistance, good fire resistance, and enhanced thermal conductivity, silane-treated chopped grape stem fibers and bottle gourd stem-derived cellulose were incorporated into an epoxy resin matrix using the manual layup method. In accordance with ASTM standards, the influence of cellulose concentration and surface modification on the composite’s mechanical, wear, thermal conductivity, and flammability properties was systematically investigated.The results revealed that increasing the cellulose concentration generally improved the overall performance of the composites. The composite containing 9 vol% cellulose and 30 vol% chopped stem fiber (BFF5) demonstrated the best combination of functional properties. It exhibited superior wear resistance with the lowest specific wear rate of 0.39 mm³/Nm and a coefficient of friction (COF) of 0.56. Additionally, it achieved the highest thermal conductivity of 0.475 W/mK, the longest burning duration with a flame spread rate of 8.33 mm/min, and the highest hardness value of 99 Shore D.In contrast, the composite with 5 vol% cellulose (BFF3) showed the highest mechanical properties, recording a tensile strength of 137.6 MPa, an impact energy of 3.82 J, and a flexural strength of 157.6 MPa. The failure mechanisms of the tested specimens were further examined using scanning electron microscopy (SEM), providing detailed insights into fiber-matrix interactions and fracture behavior.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133166","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

Dual-step melt blended recycled polypropylene nanocomposites: interfacial behavior and reinforcement effects of carbon nanofillers 双步熔融共混再生聚丙烯纳米复合材料：碳纳米填料的界面行为和增强效果

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-29 DOI: 10.1007/s00289-026-06717-7

Urwa Arshad, Yasir Qayyum Gill, Muhammad Wajid Ijaz, Sobia Naseem, Muhammad Rizwan

{"title":"Dual-step melt blended recycled polypropylene nanocomposites: interfacial behavior and reinforcement effects of carbon nanofillers","authors":"Urwa Arshad, Yasir Qayyum Gill, Muhammad Wajid Ijaz, Sobia Naseem, Muhammad Rizwan","doi":"10.1007/s00289-026-06717-7","DOIUrl":"10.1007/s00289-026-06717-7","url":null,"abstract":"<div><p>Post-consumer nonwoven polypropylene (PP) waste derived from personal protective equipment (PPE), including surgical masks and gowns, represents an expanding yet largely unrecycled fraction of global municipal solid waste. This study presents a systematic approach to upcycling post-consumer personal protective equipment (PPE) waste, such as surgical masks and gowns, into functional nonwoven polypropylene (PP) nanocomposites. Using a dual-step processing route combining ultrasonication-assisted aqueous pre-dispersion with twin-screw melt blending, the researchers incorporated carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) at 0.25, 0.5, and 1 wt% loadings. Comprehensive characterization revealed that both nanofillers significantly enhanced the polymer’s properties. FTIR spectroscopy confirmed strong filler–matrix interfacial interactions through partial chemical bonding and physical adsorption. Thermally, GNP at 0.25 wt% and CNT at 0.5 wt% provided the highest improvements, increasing thermal stability (T<sub>max</sub>) by up to 53 °C and 42 °C, respectively,ver neat recycled PP. DSC analysis showed a nucleation effect, raising the crystallization temperature (T<sub>c</sub>) from 103.23 °C to approximately 115 °C. Morphological and mechanical assessments via SEM and tensile testing established clear, concentration-dependent boundaries. Low filler loadings (0.25–0.5 wt%) achieved uniform dispersion, with tensile performance peaking at 0.25 wt%. Conversely, 1 wt% loadings caused agglomeration and property degradation, though Shore D hardness progressively increased by up to 13.7%. Overall, this scalable method successfully converts PPE waste into high-performance nanocomposites.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133212","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

Retraction Note: Effects of silane-functionalized nanocomposites in superabsorbent polymer and its reinforcing effects in cementitious materials 注：硅烷功能化纳米复合材料在高吸水性聚合物中的作用及其在胶凝材料中的增强作用

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-28 DOI: 10.1007/s00289-026-06701-1

V. S. Sujitha, B. Ramesh, Joseph Raj Xavier

引用次数: 0

Barium strontium titanate induced β-phase enhancement in electrospun polyvinylidene difluoride composite fibers for high-efficiency flexible piezoelectric nanogenerators 钛酸钡锶诱导电纺丝聚偏二氟乙烯复合纤维β相增强，用于高效柔性压电纳米发电机

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-28 DOI: 10.1007/s00289-026-06719-5

Sajid Khan, Jouhar Ud Din, Said Karim Shah, Numan Ali, Sadia Saleem, Jasim Yousaf, Muhammad Rauf, Khizar Hayat

{"title":"Barium strontium titanate induced β-phase enhancement in electrospun polyvinylidene difluoride composite fibers for high-efficiency flexible piezoelectric nanogenerators","authors":"Sajid Khan, Jouhar Ud Din, Said Karim Shah, Numan Ali, Sadia Saleem, Jasim Yousaf, Muhammad Rauf, Khizar Hayat","doi":"10.1007/s00289-026-06719-5","DOIUrl":"10.1007/s00289-026-06719-5","url":null,"abstract":"<div><p>Polyvinylidene difluoride (PVDF) composite fibers with uniformly dispersed strontium doped barium titanate (Ba<sub>0.96</sub>Sr<sub>0.04</sub>TiO<sub>3</sub>) abbreviated as BST, particles were synthesized via electrospinning technique. β-phase was enhanced from ~ 65.7% to ~ 87.4% upon incorporation of different concentrations (10 wt%, 20 wt%, 30 wt%, 40 wt% and 50 wt%) of BST particles in the PVDF matrix. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) analysis showed the improvement of the β-phase having the highest β-phase concentration (~ 87.4%) obtained at 30 wt% of BST. The PVDF fibers-based piezoelectric nanogenerators (PENG) generated an open circuit voltage (<i>V</i><sub>oc</sub>) of ~ 11.8 V, a current density of ~ 0.118 mA/m² and a maximum output power density of ~ 1.39mWm<sup>−</sup>² (at load resistance (<i>R</i><sub><i>L</i></sub><i>)</i> = 50 MΩ) while maximum power density, open circuit voltage and short circuit current density of ∼4.52 mWm<sup>− 2</sup> (at <i>R</i><sub><i>L</i></sub> = 60 MΩ), ∼23.3 V and ∼0.194 mAm<sup>− 2</sup>, respectively, were achieved at 30 wt% of BST. BST/PVDF composite fibers-based PENG illuminated multiple light emitted diodes (LEDs), digital multi-meter and hygrometer. These outcomes highlight the potential of BST/PVDF composite fibers as high-efficiency piezoelectric materials for sustainable energy sources in flexible electronic devices.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133125","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

Sulfonated polyimide/phosphotungstic acid composite proton exchange membranes with balanced properties for fuel cells 燃料电池用性能平衡的磺化聚酰亚胺/磷钨酸复合质子交换膜

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-28 DOI: 10.1007/s00289-026-06725-7

Fengxia Zhai, Liqi Zhuang, Xinyu Wei, Fahai Cao, Shicheng Zhao

{"title":"Sulfonated polyimide/phosphotungstic acid composite proton exchange membranes with balanced properties for fuel cells","authors":"Fengxia Zhai, Liqi Zhuang, Xinyu Wei, Fahai Cao, Shicheng Zhao","doi":"10.1007/s00289-026-06725-7","DOIUrl":"10.1007/s00289-026-06725-7","url":null,"abstract":"<div><p>Sulfonated polyimide (SPI) membranes typically require a high degree of sulfonation to achieve sufficient proton conductivity, which inevitably leads to excessive water uptake, pronounced swelling, and compromised hydrolytic stability. To overcome these limitations, composite proton exchange membranes (PEMs) integrating a polymer matrix with a dispersed inorganic proton-conducting phase provide a promising strategy. Herein, a series of SPIs with different degrees of sulfonation and chain architectures (random and block copolymers) were synthesized as polymer matrices, while phosphotungstic acid (HPW) was introduced as an inorganic proton-conducting filler. SPI/HPW composite membranes were fabricated via ultrasonic-assisted blending followed by solution casting. FTIR and SEM analyses confirmed the successful incorporation and uniform dispersion of HPW within the SPI matrix, while its characteristic Keggin structure was well preserved. An optimized HPW loading simultaneously enhanced the mechanical properties and proton conductivity of the membranes. Notably, the BB (3:1)-s/HPW-10% membrane achieved a proton conductivity of 0.161 S cm<sup>− 1</sup>, comparable to that of Nafion 117, together with a tensile strength of 15 MPa and excellent hydrolytic stability exceeding 1600 h. Meanwhile, the composite membrane maintained favorable methanol barrier properties. Overall, the SPI/HPW composite membranes demonstrate a favorable balance of proton conductivity, mechanical strength, hydrolytic stability, and methanol resistance, highlighting their potential as proton exchange membrane materials for fuel cell applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133130","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

Modification of thin film nanocomposite forward osmosis membranes using hyper-crosslinked polymer via intermediate strategy 超交联聚合物对薄膜纳米复合正渗透膜的中间改性研究

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-28 DOI: 10.1007/s00289-026-06710-0

Elnazalsadat Mirsaeidghazi, Alireza Shakeri, Hasan Salehi

{"title":"Modification of thin film nanocomposite forward osmosis membranes using hyper-crosslinked polymer via intermediate strategy","authors":"Elnazalsadat Mirsaeidghazi, Alireza Shakeri, Hasan Salehi","doi":"10.1007/s00289-026-06710-0","DOIUrl":"10.1007/s00289-026-06710-0","url":null,"abstract":"<div><p>Here, a polyamide-based hypercrosslinked polymer (HCP) was successfully synthesized and incorporated into thin-film nanocomposite forward osmosis (TFN-FO) membranes using an intermediate strategy to enhance their physicochemical properties and separation performance. ATR-FTIR, XRD and TEM analyses confirmed successful HCP synthesis with a layered morphology, while elemental mapping revealed uniform distribution and high nitrogen content. To incorporate the HCP into the polyamide active layer, it was dispersed in hexane and applied as a coating on the membrane surface between the aqueous and organic monomers. HCP significantly affected interfacial polymerization, resulting in a smoother, thinner, and more hydrophilic polyamide active layer. The performance evaluation showed that the water flux of the pristine FO membrane (12.2 LMH) rose to 23.4 LMH at the optimal HCP loading, then slightly decreased at higher loadings because of increased polyamide thickness. The modified membrane, which demonstrated high water flux and enhanced specific reverse salt flux, was tested for dye concentration (reactive black B). The 24-hour process results demonstrate a high dye rejection rate (> 99.9%) and an anti-fouling tendency, confirming the long-term stability of HCP within the polyamide active layer matrix. Overall, the results highlight the potential of HCP-modified FO membranes to overcome the permeability-selectivity trade-off, thereby enhancing water flux, salt rejection, and dye concentration for sustainable water desalination and textile wastewater treatment.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132671","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

Amorphous phase enlargement and boosting the ionic conductivity in glycerolized chitosan/PVP-NaNO3 biopolymer electrolytes 甘油化壳聚糖/PVP-NaNO3生物聚合物电解质中非晶态相扩大及离子电导率的提高

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-28 DOI: 10.1007/s00289-026-06702-0

Safar Saeed Mohammed, Shujahadeen Bakr Aziz, Hazhar Hamad Rasul, Fethi Dağdelen, Mediha KÖK

{"title":"Amorphous phase enlargement and boosting the ionic conductivity in glycerolized chitosan/PVP-NaNO3 biopolymer electrolytes","authors":"Safar Saeed Mohammed, Shujahadeen Bakr Aziz, Hazhar Hamad Rasul, Fethi Dağdelen, Mediha KÖK","doi":"10.1007/s00289-026-06702-0","DOIUrl":"10.1007/s00289-026-06702-0","url":null,"abstract":"<div><p>In this work, plasticized chitosan/PVP/NaNO3 polymer electrolyte films were prepared using the solution casting method, and their structural, dielectric, and electrochemical properties were systematically investigated through XRD, FTIR, and EIS analyses. XRD results revealed a progressive reduction in the degree of crystallinity (from 28.3% to 6.8%) with increasing glycerol concentrations, confirming the improves the amorphous nature within the polymer matrix. FTIR analysis demonstrated clear interactions among chitosan, PVP, NaNO3, and glycerol through noticeable shifting and broadening of characteristic functional groups, indicating complex formation and enhanced polymer–salt interactions. Electrochemical impedance spectroscopy showed a remarkable decrease in bulk resistance (R<sub>b</sub>) from 295,600 Ω for CPNG-0 to only 18 Ω for CPNG-40, accompanied by a substantial increase in DC ionic conductivity from 1.02<span>(:times:{10}^{-8}:)</span>S/cm to 2.34<span>(:times:{10}^{-4}:)</span>S/cm. The Nyquist plots evolved from a large semicircle for CPNG-0 to a spike-dominated response for CPNG-40, reflecting the transition toward highly conductive ion transport behavior. Dielectric studies revealed significantly enhanced dielectric constant and dielectric loss at low frequencies for glycerol-rich samples due to increased charge carrier accumulation and electrode polarization. The relaxation peak frequency shifted from 0.133 kHz to 133.65 kHz, while the relaxation time dramatically decreased from 1.196 <span>(:ms)</span> to 1.191 <span>(:mu:s)</span>. Moreover, the ionic diffusivity, charge carrier density, and ionic mobility were increased. Argand plot analyses showed that ionic relaxation happens more quickly and polymer segments move better when there is more glycerol. The obtained findings demonstrate that glycerol effectively improves the amorphousity and electrochemical performance of the chitosan/PVP-based polymer electrolyte system.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132670","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

Marine-derived biopolymers – the wider prospects as nutraceuticals 海洋生物聚合物——作为营养品的广阔前景

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-26 DOI: 10.1007/s00289-026-06696-9

Faisal Rashid Sofi, Lekshmi R. G. Kumar, Akhila Dharnappa Sannejal, Aakila, Kavitha Guladahalli Manjunatha, Vijay Kumar Reddy Surasani, Girija Saurabh Behere, Kawkabul Saba, Hafsa Maqbool, Tariq Hussain, Neeraj Pathak

{"title":"Marine-derived biopolymers – the wider prospects as nutraceuticals","authors":"Faisal Rashid Sofi, Lekshmi R. G. Kumar, Akhila Dharnappa Sannejal,  Aakila, Kavitha Guladahalli Manjunatha, Vijay Kumar Reddy Surasani, Girija Saurabh Behere, Kawkabul Saba, Hafsa Maqbool, Tariq Hussain, Neeraj Pathak","doi":"10.1007/s00289-026-06696-9","DOIUrl":"10.1007/s00289-026-06696-9","url":null,"abstract":"<div><p>Biopolymers derived from marine organisms are increasingly recognized as sustainable functional materials because of their importance in food and nutraceutical applications. This review explores key marine biopolymers, including chitin/chitosan, agar, carrageenan, alginate, cellulose, ulvan, collagen, and gelatin, considering their origins, extraction methods, functional properties, biological activities, nutraceutical potential, and safety aspects. Relevant studies were gathered from PubMed, ScienceDirect, and SpringerLink, including studies from 2000 to August 2026, while selected earlier studies were retained, where appropriate. Quantitative evidence showed considerable source- and process-dependent variations in extraction yields, including 10.56% for chitosan-containing shrimp-shell residue, 20.45% for chitosan extracted from fishery waste, 29.28–30.9% for alginate from selected brown seaweeds, 20.91–33% for agar from Gracilaria corticata, and 27.8% for collagen from pirarucu skin. Marine biopolymers also have potential as functional ingredients and carriers in nutraceutical formulations. Recent human evidence supports the oral use of fish-derived collagen peptides; however, chitosan–alginate delivery systems and many other reported health effects remain preclinical. Overall, marine biopolymers show considerable nutraceutical potential; however, standardized extraction and characterization, contaminant control, food safety assessment, and well-designed human trials are still needed.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149035449","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

Supercritical CO2 foaming of POE/OBC composite foams with enhanced resilience and thermal insulation POE/OBC复合泡沫的超临界CO2发泡，增强弹性和保温性能

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-25 DOI: 10.1007/s00289-026-06700-2

Linqi Lu, Bengang Liu, Haohao Hou, Hongfu Zhou, Yafeng Deng, Xiangdong Wang

{"title":"Supercritical CO2 foaming of POE/OBC composite foams with enhanced resilience and thermal insulation","authors":"Linqi Lu, Bengang Liu, Haohao Hou, Hongfu Zhou, Yafeng Deng, Xiangdong Wang","doi":"10.1007/s00289-026-06700-2","DOIUrl":"10.1007/s00289-026-06700-2","url":null,"abstract":"<div><p>Polyolefin elastomer (POE) foams are promising lightweight cushioning materials, but their limited melt strength can cause cell coalescence and structural instability during foaming. POE-based composites containing 0.9 parts per hundred resin (phr) bis(1-(tert-butylperoxy)-1-methylethyl)benzene (BIPB) and 0–50 phr olefin block copolymer (OBC) were prepared by melt blending and thermal crosslinking, followed by supercritical carbon dioxide (scCO<sub>2</sub>) autoclave foaming. With increasing OBC content, the xylene-insoluble fraction increased from 82.2% to 90.9%, and the storage modulus and complex viscosity increased, whereas the overall apparent crystallinity decreased from 18.1% to 7.3%. Under the selected foaming conditions of 100 °C and 15 MPa, F-OBC-20 exhibited the highest volume expansion ratio (8.90 ± 0.13) among the investigated formulations, while F-OBC-50 exhibited the smallest average cell size (54.3 ± 5.1 μm) and highest cell density (1.66 × 10<sup>7</sup> cells/cm<sup>3</sup>). Ball rebound resilience increased from approximately 31% to over 43%, and thermal conductivity decreased from 0.0819 to 0.0607 W/(m·K), whereas specific compressive stress at 50% strain decreased. These results reveal composition-dependent trade-offs among foam expansion, cellular refinement, resilience, thermal insulation, and compressive load-bearing capability at a fixed BIPB loading.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149035176","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

Influence of dual-scale reinforcement on the structure–property relationships of polypropylene composites 双尺度增强对聚丙烯复合材料结构-性能关系的影响

IF 4.2 3区化学

Polymer Bulletin Pub Date : 2026-09-25 DOI: 10.1007/s00289-026-06630-z

Jaewon Kim, Donald R. Paul, Corey M. James, Youngjae Yoo

{"title":"Influence of dual-scale reinforcement on the structure–property relationships of polypropylene composites","authors":"Jaewon Kim, Donald R. Paul, Corey M. James, Youngjae Yoo","doi":"10.1007/s00289-026-06630-z","DOIUrl":"10.1007/s00289-026-06630-z","url":null,"abstract":"<div><p>This work focuses on determining whether a synergistic reinforcing relationship exists between glass fiber and organoclay in a polypropylene matrix. A synergy between the two fillers produces greater enhancement than would be present with just one filler. First, experiments were conducted using two different processing methods to determine which would cause the least breakage of glass fibers in the melt. A single extrusion followed by injection molding with dry glass fibers was determined to be the optimum processing condition. Because the silicate platelet reinforcement gained from organoclay is largely due to exfoliation, an optimum maleic anhydride grafted polypropylene (PP-g-MA) content was determined at 4 wt% from preliminary experiment. Lastly, specimens were molded at varying (0–7%) montmorillonite and (0–30%) glass fiber content. Microscopy, impact testing, and tensile testing were conducted to determine the effects of the two reinforcing fillers. When varying amounts of glass fiber are introduced and the two fillers compete for the benefits of PP-g-MA, it becomes apparent that organoclay does not have the same affinity, and the PP-g-MA is largely consumed by the glass fiber. It is clear from the data that most reinforcement is achieved by the glass fibers rather than organoclay.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149035187","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