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A Review on Hybrid Fillers in Rubber Composites 橡胶复合材料中杂化填料研究进展
Q2 Materials Science Pub Date : 2018-04-13 DOI: 10.1080/03602559.2017.1329432
Zainathul Akhmar Salim Abdul Salim, A. Hassan, H. Ismail
ABSTRACT This review article is aimed at reporting the recent development of hybrid fillers used in vulcanized rubber. This review will consider the synergistic effect of rubber hybrid composites that consist exclusively of conventional fillers; carbon black and/or silica as the primary filler, which are combined with secondary fillers from various sources. The discussions are mainly focused on the analyses and comparisons of the curing characteristics, morphology, and mechanical properties of the rubber composite-filled hybrid fillers. The compatibility and the existence of synergistic effects between the different types of fillers show the potential for development and application in rubber industries. GRAPHICAL ABSTRACT
本文综述了硫化橡胶用杂化填料的最新研究进展。本综述将考虑仅由常规填料组成的橡胶混杂复合材料的协同效应;炭黑和/或二氧化硅作为一次填料,与各种来源的二次填料结合使用。主要对橡胶复合填充杂化填料的固化特性、形态和力学性能进行了分析和比较。不同类型的填料之间的相容性和协同效应的存在显示出在橡胶工业中开发和应用的潜力。图形抽象
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引用次数: 53
Understanding the Effect of Tamarind Gum Proportion on the Properties of Tamarind Gum-Based Hydroethanolic Physical Hydrogels 罗望子胶配比对罗望子胶基水乙醇物理凝胶性能的影响
Q2 Materials Science Pub Date : 2018-04-13 DOI: 10.1080/03602559.2017.1329435
Suprio R. Paul, S. Nayak, Y. Yogalakshmi, V. Singh, Archana Rath, I. Banerjee, A. Anis, K. Pal
ABSTRACT The present study reports the analysis of properties of tamarind gum-based hydroethanolic physical hydrogels. The extent of hydrogen bonding in hydrogels decreased with an increase in tamarind gum content. The hydrogel with the highest tamarind gum content was found to be highly stable in terms of mechanical properties. There was a decrease in the resistive component of the hydrogels with an increase in tamarind gum content. The drug release from the hydrogels increased with an increase in the tamarind gum content. The antimicrobial activity of the drug-loaded hydrogels against Escherichia coli was excellent. GRAPHICAL ABSTRACT
摘要本研究报道了罗望子胶基水乙醇物理凝胶的性质分析。随着罗望子胶含量的增加,水凝胶中氢键的程度降低。罗望子胶含量最高的水凝胶在力学性能方面具有很高的稳定性。随着罗望子胶含量的增加,水凝胶的电阻成分有所降低。水凝胶的药物释放量随着罗望子胶含量的增加而增加。载药水凝胶对大肠杆菌具有良好的抑菌活性。图形抽象
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引用次数: 12
Mechanical and Gas Barrier Properties of Poly(L-Lactic Acid) by Plasma-Enhanced Chemical Vapor Deposition of SiOx 等离子体增强化学气相沉积法制备聚l -乳酸的力学和气体阻隔性能
Q2 Materials Science Pub Date : 2018-04-13 DOI: 10.1080/03602559.2017.1329439
Shuxin Song, Yu Wang, Min Liang, Xiaojing Qi, Jinjun Yang, Ye Jin, Tungalag Dong
ABSTRACT In this work, poly(L-lactic acid) film was coated with SiOx by the plasma-enhanced chemical vapor deposition with different deposition times. Compared with the neat poly(L-lactic acid) film, the oxygen (O2), carbon dioxide (CO2), nitrogen (N2), and water vapor permeability of the poly(L-lactic acid)/SiOx60 film (depositing for 60 min) decreased by 40.7, 30.6, 58.7, and 53.4% at 25°C, respectively. After treated by the SiOx deposition, the gas permselectivity of the poly(L-lactic acid)/SiOx60 film, such as α(CO2/O2), α(O2/N2), and α(CO2/N2), increased by 17.2, 43.9, and 67.5% at 25°C, respectively. In addition, Young’s modulus and tensile strength of poly(L-lactic acid)/SiOx60 film increased by 107.2 and 49.3%, respectively. Moreover, the poly(L-lactic acid)/SiOx60 films still kept good toughness with an elongation at break of 50.7%. GRAPHICAL ABSTRACT
本研究采用等离子体增强化学气相沉积方法,在不同沉积时间下对聚l -乳酸薄膜进行SiOx涂层。与纯聚l -乳酸膜相比,聚l -乳酸/SiOx60膜(沉积60 min)在25℃下的氧(O2)、二氧化碳(CO2)、氮(N2)和水蒸气渗透率分别降低了40.7%、30.6%、58.7%和53.4%。经SiOx沉积处理后,聚l -乳酸/SiOx60膜在25℃时的气体选择性,如α(CO2/O2)、α(O2/N2)和α(CO2/N2)分别提高了17.2%、43.9%和67.5%。此外,聚l -乳酸/SiOx60薄膜的杨氏模量和拉伸强度分别提高了107.2和49.3%。此外,聚l -乳酸/SiOx60薄膜仍保持良好的韧性,断裂伸长率达50.7%。图形抽象
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引用次数: 5
Review on Polymer/Halloysite Nanotube Nanocomposite 聚合物/高岭土纳米管纳米复合材料研究进展
Q2 Materials Science Pub Date : 2018-04-13 DOI: 10.1080/03602559.2017.1329436
Ayesha Kausar
ABSTRACT Halloysite nanotube (HNT) is a unique type of nanofiller, i.e., structurally much similar to nanoclay, whereas geometrically analogous to carbon nanotube. Due to nanosize, surface area, low cost, and natural availability, HNT offers up to date latent for polymeric nanocomposite. Polymer/HNT nanocomposites have been prepared using different techniques; however, melt mixing technique was widely used. Thermal stability, mechanical robustness, and nonflammability of polymer nanocomposite have been found to increase by HNT addition. Application areas discovered so far include materials for flame retardancy, stimuli-response, anticorrosion, dye removal, and drug delivery. Future research is desired to expand the potential of polymer/HNT nanocomposite. GRAPHICAL ABSTRACT
高岭土纳米管(HNT)是一种独特的纳米填料,即在结构上与纳米粘土非常相似,而在几何上与碳纳米管相似。由于纳米尺寸,表面积,低成本和自然可用性,HNT为聚合物纳米复合材料提供了最新的潜力。聚合物/HNT纳米复合材料的制备采用了不同的技术;然而,熔体混合技术得到了广泛的应用。聚合物纳米复合材料的热稳定性、机械稳健性和不可燃性都得到了提高。目前发现的应用领域包括阻燃、刺激反应、防腐、染料去除和药物输送。未来的研究将进一步扩大聚合物/HNT纳米复合材料的潜力。图形抽象
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引用次数: 95
Graphite Filler-Based Nanocomposites with Thermoplastic Polymers: A Review 热塑性聚合物石墨填充基纳米复合材料研究进展
Q2 Materials Science Pub Date : 2018-04-13 DOI: 10.1080/03602559.2017.1329438
Ayesha Kausar, Shoaib Anwar
ABSTRACT This up-to-date review comprehends the research performed on three important types of thermoplastic polymers, i.e., polyamide, polyimide, and poly(amide-imide). Graphite has been discussed as indispensable nanofiller to form significant categories of polyamide/graphite, polyimide/graphite, and poly(amide-imide)/graphite nanocomposite. Main focus of this review was to outline the properties and potential of these polymers and their composites. Studies have demonstrated considerable enhancement in the strength, thermal, electrical, rheology, and wear properties of these polymers upon graphite addition. Significance of polyamide, polyimide, poly(amide-imide), and graphite-based composites have been discussed keeping in view the challenges and future demands for contemporary technical applications. GRAPHICAL ABSTRACT
摘要:本文综述了三种重要类型的热塑性聚合物的研究进展,即聚酰胺、聚酰亚胺和聚酰胺-亚胺。石墨是形成聚酰胺/石墨、聚酰亚胺/石墨和聚酰胺-亚胺/石墨纳米复合材料必不可少的纳米填料。本文主要综述了这些聚合物及其复合材料的性能和潜力。研究表明,石墨的加入大大提高了这些聚合物的强度、热学、电学、流变学和磨损性能。讨论了聚酰胺、聚酰亚胺、聚(酰胺-亚胺)和石墨基复合材料的意义,并考虑了当代技术应用的挑战和未来需求。图形抽象
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引用次数: 29
Fabrication of PMMA/PANI/Fe3O4 as a Novel Conducting Hybrid Coating 新型导电杂化涂层PMMA/PANI/Fe3O4的制备
Q2 Materials Science Pub Date : 2018-04-13 DOI: 10.1080/03602559.2017.1332205
M. Ghorbani, S. Fazli, Mohammad Soleimani Lashkenari
ABSTRACT In this paper, an excellent new hybrid coating including poly(methyl methacrylate) (PMMA), polyaniline (PANI), and magnetite nanoparticles (Fe3O4) was obtained. Fe3O4 nanoparticles were synthesized using coprecipitation method, and then magnetite nanoparticles have been dispersed into the PANI to increase compatibility with PMMA. Also, PANI/Fe3O4 nanocomposites were synthesized through in situ emulsion polymerization, and then PMMA/PANI/Fe3O4 hybrid coating was successfully synthesized using batch emulsion polymerization method. Structure, morphology and thermal stability of the samples were characterized using Fourier transform infrared, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and thermal gravimetric analysis (TGA). The synthesized samples were well distributed with an average diameter smaller than 20 nm. Microscopy and X-ray photoelectron spectroscopy results illustrated a great dispersion of magnetite nanoparticles in hybrid matrix. Moreover, the TGA results demonstrated that the PMMA/PANI/Fe3O4 hybrid coating nanoparticle is an excellent hybrid coating with high thermal resistance. GRAPHICAL ABSTRACT
摘要本文制备了一种由聚甲基丙烯酸甲酯(PMMA)、聚苯胺(PANI)和磁铁矿纳米颗粒(Fe3O4)组成的新型高性能杂化涂层。采用共沉淀法合成了Fe3O4纳米颗粒,并将磁铁矿纳米颗粒分散到聚苯胺中以提高与PMMA的相容性。采用原位乳液聚合法制备了PANI/Fe3O4纳米复合材料,并采用间歇乳液聚合法制备了PMMA/PANI/Fe3O4杂化涂层。采用傅里叶变换红外、x射线衍射、扫描电镜、透射电镜和热重分析(TGA)对样品的结构、形貌和热稳定性进行了表征。合成的样品分布均匀,平均直径小于20 nm。显微镜和x射线光电子能谱分析结果表明,磁铁矿纳米颗粒在杂化基质中具有较强的分散性。此外,TGA结果表明,PMMA/PANI/Fe3O4杂化涂层纳米颗粒是一种优异的高热阻杂化涂层。图形抽象
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引用次数: 11
Biomimetic Design of Artificial Materials Inspired by Iridescent Nacre Structure and Its Growth Mechanism 基于虹彩珍珠结构的人工材料仿生设计及其生长机理
Q2 Materials Science Pub Date : 2018-03-27 DOI: 10.1080/03602559.2017.1326139
Navneet Mishra, B. Kandasubramanian
ABSTRACT Nacre, the iridescent material found in the innermost layer of seashells, having high strength and toughness was obtained from relatively weak constituents. The excellent mechanical performance of this biological material originates from its hierarchically ordered arrangement of well-tailored hard and soft building blocks. Incorporating these structures into composites is as alluring as conventional engineering materials often sacrifice strength to improve toughness. The unique mechanical properties originated from multiscale deformation regime involving solid-state self-organization process lead efficient energy dissipation which leads to high toughness, these multiscale biological assemblies inspire new synthesis route of complex materials. In this review, we study various mechanisms involved in toughening, methods used in mimicking nacre structure and various strategies for fabricating nacreous architecture which has gleaned new avenues for self-standing, strong, and advanced toughened material. GRAPHICAL ABSTRACT
珍珠脂是一种存在于贝壳最内层的具有高强度和韧性的荧光材料,它是由相对较弱的成分制备而成的。这种生物材料优异的机械性能源于其精心定制的硬、软构件的分层有序排列。将这些结构整合到复合材料中,就像传统工程材料经常牺牲强度来提高韧性一样具有吸引力。这些多尺度生物组件具有独特的力学性能,源自于涉及固态自组织过程的多尺度变形机制,具有高效的能量耗散和高韧性,为复杂材料的合成开辟了新的途径。在本文中,我们研究了各种增韧机制,模拟珍珠结构的方法和制造珍珠结构的各种策略,为制备自立性强的高级增韧材料提供了新的途径。图形抽象
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引用次数: 19
Arabinoxylan-Based Mucoadhesive Oral Films of Tizanidine HCL Designed and Optimized Using Central Composite Rotatable Design 中心复合旋转式设计优化阿拉伯木聚糖基替扎尼定口服膜
Q2 Materials Science Pub Date : 2018-03-24 DOI: 10.1080/03602559.2017.1324575
M. Zaman, Muhammad Hanif, M. A. Khan
ABSTRACT In the current study, a natural pharmaceutical excipient, arabinoxylan, was extracted from ispaghula husk and used to develop controlled release of mucoadhesive oral films of tizanidine hydrochloride. Film formulations were designed and optimized by central composite rotatable design, selecting arabinoxylan (X1) and glycerol (X2) as variables. Prepared films were evaluated for chemical compatibility of the ingredients, surface morphology, mechanical strength, in vitro drug release, ex vivo drug permeation and ex vivo mucoadhesion strength. Results revealed that selected ingredients were compatible and quite capable of producing films with desired characteristics. GRAPHICAL ABSTRACT
摘要:本研究从ispaghula壳中提取天然药用辅料阿拉伯木聚糖,制备盐酸替扎尼定的控释黏附口服膜。以阿拉伯木聚糖(X1)和甘油(X2)为变量,采用中心复合旋转设计法对膜的配方进行设计和优化。对制备的膜进行成分的化学相容性、表面形貌、机械强度、体外药物释放、体外药物渗透和体外黏附强度的评价。结果表明,所选择的原料是相容的,能够生产出具有理想特性的薄膜。图形抽象
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引用次数: 10
An Insight on the Swelling, Viscoelastic, Electrical, and Drug Release Properties of Gelatin–Carboxymethyl Chitosan Hydrogels 明胶-羧甲基壳聚糖水凝胶的溶胀、粘弹性、电学和药物释放特性研究
Q2 Materials Science Pub Date : 2018-03-24 DOI: 10.1080/03602559.2016.1260732
P. Pandey, I. Banerjee, A. Anis, K. Pal
ABSTRACT The present study reports the in-depth analysis of the gelatin–carboxymethyl chitosan hydrogels. The composite system formed phase-separated hydrogels, which is confirmed by scanning electron microscopy. The swelling of the carboxymethyl chitosan-containing hydrogels was lower than the gelatin hydrogel. Macroscale deformation study using a static mechanical tester indicated a viscoelastic nature of the hydrogels. A decrease in the impedance of the hydrogels was observed with an increase in the carboxymethyl chitosan content. The drug release from the hydrogels was predominantly Fickian diffusion mediated and was released in its active form. The results suggested the potential use of the hydrogels as drug delivery matrices. GRAPHICAL ABSTRACT
摘要本研究对明胶-羧甲基壳聚糖水凝胶进行了深入分析。复合体系形成相分离的水凝胶,扫描电镜证实了这一点。羧甲基壳聚糖水凝胶的溶胀率低于明胶水凝胶。采用静态力学试验机进行的宏观变形研究表明,水凝胶具有粘弹性。随着羧甲基壳聚糖含量的增加,水凝胶的阻抗降低。水凝胶的药物释放以菲克扩散为主,以活性形式释放。结果提示水凝胶作为药物递送基质的潜在应用前景。图形抽象
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引用次数: 5
Development of Thermal Sensor by Reinforced Graphene Nanoplatelets Thermoplastic Blends 增强石墨烯纳米片热塑性共混物热传感器的研制
Q2 Materials Science Pub Date : 2018-03-24 DOI: 10.1080/03602559.2016.1233272
A. Sharma, M. Pandey, Moumita Khutia, Girish M. Joshi, M. T. Cuberes
ABSTRACT Polymer composites made of carbon allotropes were highly crucial for various engineering applications. We demonstrated the successful modification of polyacrilonitrile/polyvinylfloride blends by reinforced graphene nanoplatelets. The atomic force microscopy confirms the partial immiscible traces of polymer systems with asperities on the surface of the modified blends due to loading of graphene. The phase angle (Ɵ) measurement across the temperature (40–150°C) with the broadband frequency (50–35 MHz) is performed using the impedance analyzer. The results demonstrated the decrease in phase angle as a function of temperature. This investigation is highly suitable for the development of thermal sensor for engineering and health applications. GRAPHICAL ABSTRACT
碳同素异形体聚合物复合材料在各种工程应用中具有重要意义。我们展示了通过增强石墨烯纳米片成功改性聚丙烯腈/聚氯乙烯共混物。原子力显微镜证实,由于石墨烯的负载,改性共混物的表面出现了部分不混溶的聚合物体系的痕迹。使用阻抗分析仪进行宽带频率(50-35 MHz)的温度(40-150°C)相位角(Ɵ)测量。结果表明,相角随温度的变化而减小。该研究对工程和医疗用热传感器的开发具有重要的指导意义。图形抽象
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引用次数: 5
期刊
Polymer-Plastics Technology and Engineering
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