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Pine Resin as a Natural Polymer Binder in Pine Cone-Reinforced Lightweight Concrete.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030364
Celal Kistak, Araz Muhammed Hassan, Ayse Bicer, Nevin Celik

The aim of this study is to investigate the potential applications of pine cones as plant-based waste material in the construction industry. In order to achieve this target, the pine cone particles (PCP) are mixed with cement to create new lightweight concretes. Furthermore, pine tree resin (PTR), acting as a natural bio-polymer binder, is incorporated into selected samples to ascertain its potential as a binder. The pine cones are cut into particles of 2-4 cm, 0-2 cm, and ground into a powder. A series of critical tests is conducted on the novel produced samples, including thermal conductivity, specific heat, density, compressive strength, water absorption rate, and drying rate. The experiments show that thermal conductivity, specific heat capacity, and thermal expansion coefficient decrease as the weight ratio and size of PCP increase. The presence of PTR increases porosity, further decreasing thermal conductivity, specific heat, and thermal expansion coefficients for the majority of samples. The compressive strength values decrease with the presence of PTR and PCP. Regarding durability, the water absorption ratios remain below the critical 30% threshold, making the material suitable for internal applications or external facades protected by coating/plaster or as external coverings.

本研究的目的是探讨松果作为植物基废物在建筑工业中的潜在应用。为了实现这一目标,松果颗粒(PCP)与水泥混合,创造出新的轻质混凝土。此外,作为天然生物聚合物粘合剂的松树树脂(PTR)被掺入选定的样品中,以确定其作为粘合剂的潜力。将松果切成2-4厘米、0-2厘米的颗粒,磨成粉末。对新生产的样品进行了一系列关键测试,包括导热系数、比热、密度、抗压强度、吸水率和干燥率。实验结果表明,随着PCP重量比和尺寸的增大,其导热系数、比热容和热膨胀系数减小。PTR的存在增加了孔隙度,进一步降低了大多数样品的导热系数、比热和热膨胀系数。当PTR和PCP存在时,抗压强度值降低。在耐久性方面,吸水率保持在30%的临界值以下,使材料适合内部应用或外立面的涂层/石膏保护或作为外部覆盖物。
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引用次数: 0
Research on the Pavement Performance of Fiber-Reinforced High Modulus Asphalt Concrete.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030365
Gaixia Chen, Tuanjie Wang, Yuquan Yao

Under high temperature and heavy load conditions, asphalt pavements are prone to rutting and other distress, which severely affect the service life of the road. High modulus asphalt concrete has significant advantages in addressing rutting issues in asphalt pavements. However, its low-temperature performance is often poor, especially in regions with hot summers, cold winters, and large diurnal temperature variations, which limits the application of this technology. Based on this, the study introduces three types of fibers: basalt fiber, polyester fiber, and lignin fiber as reinforcing materials to improve the performance of high modulus asphalt concrete. The effects of these fibers on the pavement performance of high modulus asphalt concrete are systematically evaluated through rutting tests, low-temperature bending tests, immersion Marshall tests, freeze-thaw splitting tests, fatigue tests, and dynamic modulus tests. The test results show that as the fiber content increases, the effect of the fibers on the high-temperature, low-temperature, and fatigue performance of high modulus asphalt concrete initially improves and then decreases. The impact on water stability is not significant, while the dynamic modulus performance decreases. Fibers can significantly improve the low-temperature performance of the mixture. Among them, basalt fiber shows the greatest improvement in high-temperature and fatigue performance, while polyester fiber provides the best improvement in low-temperature performance. The improvement effect of lignin fiber is not as pronounced as that of the first two fibers. All types of fibers have an adverse effect on the dynamic modulus of the mixture. Taking all factors into consideration, the recommended fiber contents for basalt fiber, polyester fiber, and lignin fiber are 0.4%, 0.3%, and 0.3%, respectively, as these levels exhibited the best overall performance among the discrete dosages investigated in this study. Based on the experimental results, and within the selected dosage range, a performance evaluation system for fiber-reinforced high modulus asphalt concrete is established.

在高温、重载条件下,沥青路面容易发生车辙等病害,严重影响道路的使用寿命。高模量沥青混凝土在解决沥青路面车辙问题方面具有显著的优势。但其低温性能往往较差,特别是在夏热、冬冷、日温差大的地区,限制了该技术的应用。在此基础上,研究引入玄武岩纤维、聚酯纤维和木质素纤维三种纤维作为增强材料,提高高模量沥青混凝土的性能。通过车辙试验、低温弯曲试验、浸没马歇尔试验、冻融劈裂试验、疲劳试验和动模量试验,系统评价了这些纤维对高模量沥青混凝土路用性能的影响。试验结果表明:随着纤维含量的增加,纤维对高模量沥青混凝土高温、低温、疲劳性能的影响先提高后降低;对水稳定性影响不显著,但动力模量性能下降。纤维的加入可以显著提高混合料的低温性能。其中,玄武岩纤维在高温和疲劳性能上的改善最大,而聚酯纤维在低温性能上的改善最好。木质素纤维的改善效果不如前两种纤维明显。所有类型的纤维对混合料的动模量都有不利的影响。综上所述,玄武岩纤维、聚酯纤维和木质素纤维的推荐纤维含量分别为0.4%、0.3%和0.3%,因为这些水平在本研究所研究的分散剂量中表现出最佳的综合性能。根据试验结果,在选定的掺量范围内,建立了纤维增强高模量沥青混凝土的性能评价体系。
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引用次数: 0
Influence of Various Excitation Parameters on Polymer Flow Properties in Twin-Screw Extruders Simulated with Smoothed Particle Hydrodynamics.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030360
Tianlei Liu, Hesheng Liu, Tianwen Dong, Jiamei Lai, Wei Yu, Zhong Yu, Huiwen Yu

Vibration-assisted technology has been employed to satisfy various requirements for different polymeric products due to its excellent performance, but because of the large inertia of the vibration excitation system, these attempts are strictly limited to several fixed vibration amplitudes and frequencies in small extruders or injectors. The purpose of this study is to carry out a numerical investigation via smoothed particle hydrodynamics (SPH) and to perform a comparative analysis of physical parameters among different cases from various perspectives on the fluid channel in twin-screw extruders (TSEs). The results demonstrate that certain combinations of larger vibration amplitudes and frequencies can significantly enhance the velocity, pressure, and particle distribution characteristics within the flow channel. However, no monotonic (i.e., strictly increasing or decreasing) trends are observed with respect to either amplitude or frequency alone. These findings are in excellent agreement with previously reported experimental studies and confirm that the meshless smoothed particle hydrodynamics (SPH) method is a robust and effective computational tool for investigating how various vibrational parameters influence flow behavior in twin-screw extruders (TSEs). Moreover, the results underscore that optimal amplitude and frequency selections must be tailored to the specific rheological and thermal properties of the polymer being processed. This work establishes a solid theoretical and numerical foundation for integrating superimposed vibration-assisted technology into the design optimization of TSE systems.

振动辅助技术由于其优异的性能,已被用于满足不同聚合物产品的各种要求,但由于振动激励系统的大惯性,这些尝试被严格限制在小型挤出机或注射机中固定的几个振动幅度和频率。利用光滑颗粒流体力学(SPH)对双螺杆挤出机(ses)内的流体通道进行数值研究,并从不同角度对不同情况下的物理参数进行对比分析。结果表明,较大的振动幅值和频率组合可以显著改善流道内的速度、压力和颗粒分布特性。然而,没有单调(即严格增加或减少)的趋势被观察到相对于振幅或频率单独。这些发现与先前报道的实验研究非常一致,并证实无网格光滑颗粒流体动力学(SPH)方法是研究不同振动参数如何影响双螺杆挤出机(ses)流动行为的稳健有效的计算工具。此外,研究结果强调,最佳振幅和频率的选择必须根据被加工聚合物的特定流变学和热性能进行定制。本研究为将叠加振动辅助技术应用于TSE系统的设计优化奠定了坚实的理论和数值基础。
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引用次数: 0
Effect of 20 wt% Glass Fiber Reinforcement on the Mechanical Properties and Microstructure of Injection-Molded PA6 and PA66.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030357
Serhad Dilber, Lütfiye Dahil

This study investigates the mechanical performance and surface morphology of polyamide-based materials commonly used in plastic injection molding. Two resins, PA6 and PA66, were analyzed in both neat and 20 wt% glass fiber-reinforced (GF20) forms. The influence of reinforcement and material type on tensile strength and ductility was examined through integrated experimental and numerical approaches, complemented by microstructural and elemental analyses. PA6 and PA66 specimens were produced in accordance with ISO 527, and tensile tests revealed a significant increase in elastic modulus and tensile strength with glass fiber reinforcement, accompanied by a reduction in elongation at break. Flammability was evaluated via Glow Wire and Tracking tests. SEM-EDS analyses provided insights into fracture morphology and elemental distribution, showing that fiber-matrix interfacial debonding and fiber pull-out dominated failure in reinforced specimens, whereas neat polymers exhibited homogeneous surfaces. Finite element simulations performed in ANSYS Explicit Dynamics supported the experimental findings by identifying stress concentration zones and failure initiation regions. Although numerical simulations successfully captured stress distribution trends, quantitative differences were attributed to idealized modeling assumptions and processing-induced microstructural effects. Overall, this work provides a comprehensive assessment of the reinforcement effects in PA6 and PA66 systems, offering valuable guidance for material selection and design optimization in polymer-based engineering components.

本文研究了塑料注射成型中常用的聚酰胺基材料的力学性能和表面形貌。两种树脂,PA6和PA66,在纯和20%玻璃纤维增强(GF20)的形式进行了分析。通过综合实验和数值方法,辅以微观结构和元素分析,研究了增强剂和材料类型对拉伸强度和延性的影响。PA6和PA66试样按照ISO 527制作,拉伸试验显示,玻璃纤维增强后弹性模量和拉伸强度显著增加,同时断裂伸长率降低。通过Glow Wire和Tracking测试评估可燃性。SEM-EDS分析揭示了断裂形态和元素分布,表明纤维-基质界面脱粘和纤维拉出主导了增强试样的破坏,而整齐聚合物则表现出均匀的表面。在ANSYS Explicit Dynamics中进行的有限元模拟通过识别应力集中区和破坏起爆区来支持实验结果。虽然数值模拟成功地捕获了应力分布趋势,但定量差异归因于理想化的建模假设和加工引起的微观结构效应。总的来说,这项工作提供了PA6和PA66体系的增强效果的综合评估,为聚合物基工程部件的材料选择和设计优化提供了有价值的指导。
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引用次数: 0
Phosphazene-Based Porous Polymer as Electrode Material for Electrochemical Applications.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030366
Ekaterina A Karpova, Alexander A Sysoev, Ilya D Tsvetkov, Alexey L Klyuev, Oleg A Raitman, Mikhail A Soldatov

Porous highly cross-linked polymer (PIP) was synthesized by a polycondensation reaction between hexachlorocyclotriphosphazene and piperazine. The obtained polymer has a surface area of 76.9 m2/g and a mesoporous structure. After carbonization, the obtained product (PIP-C) has a surface area of 177 m2/g. The obtained carbon product contained nitrogen and phosphorus heteroatoms, which leads to a higher specific capacitance (155.6 F/g) and catalytical activity in the electroreduction of oxygen (15.9 A/g). This work shows the possibility of the use of such porous phosphazene polymers as precursors for heteroatom-doped carbon materials, which might be used in electrochemical devices like electrodes for supercapacitors or metal-free electrocatalysts in fuel cells.

以六氯环三磷腈和哌嗪为原料,通过缩聚反应合成了多孔高交联聚合物。所得聚合物的表面积为76.9 m2/g,具有介孔结构。炭化后得到的产物(PIP-C)的表面积为177 m2/g。所得碳产物含有氮磷杂原子,具有较高的比电容(155.6 F/g)和氧电还原催化活性(15.9 a /g)。这项工作显示了使用这种多孔磷腈聚合物作为杂原子掺杂碳材料前体的可能性,这种材料可能用于电化学设备,如超级电容器的电极或燃料电池中的无金属电催化剂。
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引用次数: 0
Thermal and Mechanical Properties of Silica-Reinforced SBR/NR/NBR Rubber Composites for Boot Tread Production.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030361
Gordana Marković, Suzana Cakić, Marija Krstić, Marija Milenković, Slavica Porobić Katnić, Suzana Samaržija-Jovanović, Duška Kleut, Vojislav Jovanović, Marija Gizdavic-Nikolaidis, Milena Marinović-Cincović

This study investigated the influence of acrylonitrile-butadiene rubber (NBR) at 5 and 15 phr on the properties of silica-filled styrene-butadiene /polyisoprene (SBR/NR) rubber blends intended for boot tread production. Fourier Transform Infrared Spectroscopy evaluated the performance of the resulting SBR/NR/NBR composites with Attenuated Total Reflectance (FTIR-ATR), which confirmed interactions between the rubber matrix and the silica filler. In addition, changes in thermal and mechanical properties, as well as cross-linking parameters, were systematically examined. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) are used to provide a comprehensive understanding of the structural, thermal, and mechanical behavior of silica-reinforced SBR/NR/NBR composites. The rheological characteristics of the tested composites were examined as a function of the mixture ratio. Atomic force microscopy (AFM) revealed variations in the sample's surface roughness and morphology with varying rubber blend ratios. The findings confirmed that incorporating NBR improves filler dispersion, increases cross-link density, and enhances mechanical properties, including hardness and tensile strength, while also influencing thermal stability and curing behavior. The results suggest the potential of these composites for reliable, efficient sole manufacturing in the footwear industry, where durability, strength, and processability are critical requirements.

本研究研究了5和15倍/小时的丁腈橡胶(NBR)对硅填充丁苯/聚异戊二烯(SBR/NR)橡胶共混物性能的影响。傅里叶变换红外光谱对SBR/NR/NBR复合材料的衰减全反射(FTIR-ATR)性能进行了评估,证实了橡胶基体与二氧化硅填料之间的相互作用。此外,系统地检查了热性能和力学性能以及交联参数的变化。差示扫描量热法(DSC)和热重分析(TGA)用于全面了解硅增强SBR/NR/NBR复合材料的结构、热学和力学行为。测试了复合材料的流变特性与混合比的关系。原子力显微镜(AFM)揭示了不同橡胶混合比下样品表面粗糙度和形貌的变化。研究结果证实,加入丁腈橡胶可以改善填料的分散性,增加交联密度,提高机械性能,包括硬度和抗拉强度,同时也影响热稳定性和固化行为。研究结果表明,这些复合材料在鞋业中具有可靠、高效的鞋底制造潜力,在鞋业中,耐用性、强度和可加工性是关键要求。
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引用次数: 0
Aging Behavior of EPDM Compounds with Ground Tire Rubber (GTR) as a Functional Substitute for Calcium Carbonate.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030367
Philippe Rotgänger, Vanessa Spanheimer, Danka Katrakova-Krüger, Ulrich Giese

This study investigates the substitution of calcium carbonate (CaCO3) with ground tire rubber (GTR) in EPDM-based elastomer formulations as a strategy for sustainable material development. Unlike conventional approaches, this work employs GTR as a direct filler replacement. Temperature scanning stress relaxation (TSSR) analyses confirm that GTR participates in vulcanization. Initial incorporation of GTR reduces crosslink density (CLD) and mechanical performance due to structural defects, while accelerators present in the recycled phase promote faster curing. This study focuses on the aging behavior of the compounds to evaluate possible long-term effects on the material. The thermo-oxidative stress leads to further crosslinking, resulting in higher CLD, increased stiffness and reduced elongation at break. Overall, partial replacement of CaCO3 by GTR proves feasible, offering a balanced compromise between sustainability and performance, whereas high GTR contents significantly impair mechanical properties.

本研究探讨了在epdm基弹性体配方中,用磨碎轮胎橡胶(GTR)替代碳酸钙(CaCO3)作为可持续材料开发的策略。与传统方法不同,这项工作采用GTR作为直接填料替代。温度扫描应力松弛(TSSR)分析证实GTR参与了硫化。由于结构缺陷,GTR的初始掺入降低了交联密度(CLD)和机械性能,而再生相中的促进剂促进了更快的固化。本研究的重点是化合物的老化行为,以评估可能对材料的长期影响。热氧化应力导致进一步的交联,导致更高的CLD,刚度增加和断裂伸长率降低。总体而言,GTR部分替代CaCO3被证明是可行的,提供了可持续性和性能之间的平衡折衷,而高GTR含量会严重损害机械性能。
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引用次数: 0
A Hybrid Ionic Liquid-HPAM Flooding for Enhanced Oil Recovery: An Integrated Experimental and Numerical Study.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030359
Mohammed A Khamis, Omer A Omer, Faisal S Altawati, Mohammed A Almobarky

Declining recovery factors from mature oil fields, coupled with the technical challenges of recovering residual oil under harsh reservoir conditions, necessitate the development of advanced enhanced oil recovery (EOR) techniques. While promising, chemical EOR often faces economic and technical hurdles in high-salinity, high-temperature environments where conventional polymers like hydrolyzed polyacrylamide (HPAM) degrade and fail. This study presents a comprehensive numerical investigation that addresses this critical industry challenge by applying a rigorously calibrated simulation framework to evaluate a novel hybrid EOR process that synergistically combines an ionic liquid (IL) with HPAM polymer. Utilizing core-flooding data from a prior study that employed the same Berea sandstone core plug and Saudi medium crude oil, supplemented by independently measured interfacial tension and contact angle data for the same chemical system, we built a core-scale model that was history-matched with RMSE < 2% OOIP. The calibrated polymer transport parameters-including a low adsorption capacity (~0.012 kg/kg-rock) and a high viscosity multiplier (4.5-5.0 at the injected concentration)-confirm favorable polymer propagation and effective in -situ mobility control. Using this validated model, we performed a systematic optimization of key process parameters, including IL slug size, HPAM concentration, salinity, temperature, and injection rate. Simulation results identify an optimal design: a 0.4 pore volume (PV) slug of IL (Ammoeng 102) reduces interfacial tension and shifts wettability toward water-wet, effectively mobilizing residual oil. This is followed by a tailored HPAM buffer in diluted formation brine (20% salinity, 500 ppm), which enhances recovery by up to 15% of the original oil in place (OOIP) over IL flooding alone by improving mobility control and enabling in-depth sweep. This excellent history match confirms the dual-displacement mechanism: microscopic oil mobilization by the IL, followed by macroscopic conformance improvement via HPAM-induced flow diversion. This integrated simulation-based approach not only validates the technical viability of the hybrid IL-HPAM flood but also delivers a predictive, field-scale-ready framework for heterogeneous reservoir systems. The work provides a robust strategy to unlock residual oil in such challenging reservoirs.

成熟油田的采收率不断下降,再加上在恶劣储层条件下回收剩余油的技术挑战,使得开发先进的提高采收率(EOR)技术成为必要。尽管前景广阔,但在高盐度、高温环境中,水解聚丙烯酰胺(HPAM)等传统聚合物会降解并失效,因此化学提高采收率往往面临经济和技术障碍。本研究提出了一项全面的数值研究,通过应用严格校准的模拟框架来评估一种新型的混合EOR工艺,该工艺将离子液体(IL)与HPAM聚合物协同结合,从而解决了这一关键的行业挑战。利用先前研究的岩心驱油数据,采用相同的Berea砂岩岩心塞和沙特中等原油,并辅以独立测量的同一化学体系的界面张力和接触角数据,我们建立了一个历史匹配的岩心尺度模型,RMSE < 2% OOIP。标定的聚合物输运参数——包括低吸附量(~0.012 kg/kg岩石)和高粘度倍率(注入浓度为4.5-5.0)——证实了有利的聚合物传播和有效的原位迁移控制。利用该验证模型,我们对关键工艺参数进行了系统优化,包括IL段塞尺寸、HPAM浓度、盐度、温度和注入速度。模拟结果确定了最佳设计:0.4孔隙体积(PV)的IL段塞(Ammoeng 102)降低了界面张力,将润湿性转向水湿性,有效地调动了残余油。随后,在稀释的地层盐水(盐度为20%,500 ppm)中使用定制的HPAM缓冲液,通过改善流动性控制和深度扫描,与单纯的IL驱相比,可将原始油(OOIP)的采收率提高15%。这种优异的历史匹配证实了双重驱替机制:IL在微观上动员了原油,随后通过hpam诱导的导流改善了宏观一致性。这种基于综合模拟的方法不仅验证了IL-HPAM混合驱的技术可行性,而且为非均质油藏系统提供了可预测的现场规模框架。这项工作为在这种具有挑战性的储层中释放剩余油提供了一种强大的策略。
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引用次数: 0
Microwave-Assisted Bio-Based Chemical Recycling of Fiber-Reinforced Composites from Construction and Demolition Waste.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030362
Gonzalo Murillo-Ciordia, Cecilia Chaine

Fiber-reinforced polymer composites (FRPCs) are increasingly used in construction due to their high performance and low environmental footprint. However, their widespread adoption has raised concerns over end-of-life management, particularly under European regulations mandating high recycling rates for construction and demolition waste (CDW). This study evaluates different systems for the chemical recycling of FRPCs through microwave (MW)-assisted solvolysis using green solvents, including deep eutectic solvents (DESs) and biobased acetic acid. The process targets thermoset resin depolymerization while preserving fiber integrity, operating at reduced temperatures (≤230 °C) and lower energy demand than conventional techniques, such as pyrolysis. A systematic experimental design was applied to CDW-derived polyester composites and extended to industrial epoxy and vinyl ester composites. Among the tested solvents, glacial acetic acid + ZnCl2 (5 wt.%), achieved the highest degradation efficiency, exceeding 94% in small-scale trials and maintaining over 78% upon upscaling. Recovered fibers showed moderate property retention, with tensile strength and elongation losses of ~30% and ~45% for infusion-based epoxy composites, while those from pultrusion-based epoxy composites exhibited 16-19% and retained similar properties to the virgin material, respectively. The method facilitates fiber recovery with limited degradation and aligns with circular economy principles through solvent reuse and minimizing environmental impact.

纤维增强聚合物复合材料(frpc)由于其高性能和低环境足迹而越来越多地应用于建筑中。然而,它们的广泛采用引起了人们对报废管理的担忧,特别是在欧洲规定建筑和拆除废物(CDW)的高回收率的情况下。本研究利用绿色溶剂,包括深度共晶溶剂(DESs)和生物基乙酸,评估了微波(MW)辅助溶剂溶解法对frpc化学回收的不同体系。该工艺的目标是热固性树脂解聚,同时保持纤维的完整性,在较低的温度(≤230°C)下操作,并且比传统技术(如热解)更低的能源需求。系统的实验设计应用于cdw衍生聚酯复合材料,并扩展到工业环氧树脂和乙烯基酯复合材料。在所测试的溶剂中,冰乙酸+ ZnCl2 (5 wt.%)的降解效率最高,在小规模试验中超过94%,在扩大规模后保持在78%以上。回收纤维的性能保持适度,灌注基环氧复合材料的拉伸强度和伸长率损失分别为30%和45%,而拉挤基环氧复合材料的拉伸强度和伸长率损失分别为16-19%,保持了与原始材料相似的性能。该方法有利于纤维回收,降解有限,符合循环经济原则,通过溶剂再利用和最大限度地减少对环境的影响。
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引用次数: 0
Characterization of Electron Beam-Induced Polymerization of Isodecyl Methacrylate, Benzyl Methacrylate, and Their Equimolar Mixture Based on Monomer Properties.
IF 4.9 3区 工程技术 Q1 POLYMER SCIENCE Pub Date : 2026-01-29 DOI: 10.3390/polym18030368
Ilia Antonov, Mikhail Mikhailenko, Tatyana Shakhtshneider, Artem Ulihin, Maxim Zelikman, Alexandr Bryazgin, Ilia Eltsov

The study examined the polymerization of methacrylic acid derivatives with bulky substituents (isodecyl-, benzyl-), as well as the synthesis of their copolymer through radiation initiation followed by thermal treatment. It has been discovered that the polymerization rate in equimolar monomer mixtures substantially surpasses the rate in pure monomers. We hypothesize that the substantial degree of association with the liquid monomer hinders structural rearrangements preceding polymerization. We tested this hypothesis by employing various analytical methods.

该研究考察了甲基丙烯酸衍生物与大体积取代基(异癸基-,苄基-)的聚合,以及通过辐射引发和热处理合成它们的共聚物。人们已经发现,等摩尔单体混合物的聚合速度大大超过了纯单体的聚合速度。我们假设与液体单体的大量结合阻碍了聚合前的结构重排。我们用各种分析方法检验了这个假设。
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引用次数: 0
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