Nanocomposites - Recent Evolutions最新文献

Polymer/Noble Metal Nanocomposites 聚合物/贵金属纳米复合材料

Nanocomposites - Recent Evolutions Pub Date : 2019-01-23 DOI: 10.5772/INTECHOPEN.79016

A. El-Shamy

引用次数: 20

Thermoreversible Polymeric Nanocomposites 热可逆聚合物纳米复合材料

Nanocomposites - Recent Evolutions Pub Date : 2019-01-23 DOI: 10.5772/INTECHOPEN.80218

R. Bose, F. Picchioni, H. Muljana

{"title":"Thermoreversible Polymeric Nanocomposites","authors":"R. Bose, F. Picchioni, H. Muljana","doi":"10.5772/INTECHOPEN.80218","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.80218","url":null,"abstract":"Polymeric nanocomposites are widely used in applications such as structural materials, elec- tronics, energy, and biomedical as they synergistically combine the desired properties of the filler and the polymer. The emergent properties can be designed and tuned based not only on the choice of filler and polymer but also on the type of bond and interface created between the two components. When the bond between the two is covalent, the nanocomposites have superior mechanical characteristics. When this covalent bond is reversible, a combination of high impact resistance and high tensile strength is achieved. A well-known approach to achieve these reversible covalent bonds is via the Diels-Alder reaction between a diene and a dienophile. At elevated temperatures, the retro Diels-Alder reaction is dominant resulting in bond cleavage. This chapter reviews the different strategies involving Diels-Alder reactions at the polymer-filler interface. Various fillers have been researched including silica, carbon nanotubes, and graphene, which impart different mechanical and conductive properties to the nanocomposite. A variety of polymer matrices have been reported by various research - ers and are summarized here. The choice of diene and dienophile influences the rate of reversible reaction and thus the final properties as will be discussed.","PeriodicalId":178795,"journal":{"name":"Nanocomposites - Recent Evolutions","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131602804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Hybrid Nanocomposites Produced by Sputtering: Interaction with Eukaryotic and Prokaryotic Cells 溅射制备杂化纳米复合材料:与真核和原核细胞的相互作用

Nanocomposites - Recent Evolutions Pub Date : 2018-12-31 DOI: 10.5772/INTECHOPEN.79048

A. P. Piedade

引用次数: 0

Polymer Nanocomposites with Different Types of Nanofiller 不同类型纳米填料的聚合物纳米复合材料

Nanocomposites - Recent Evolutions Pub Date : 2018-12-18 DOI: 10.5772/INTECHOPEN.81329

A. D. Oliveira, C. G. Beatrice

{"title":"Polymer Nanocomposites with Different Types of Nanofiller","authors":"A. D. Oliveira, C. G. Beatrice","doi":"10.5772/INTECHOPEN.81329","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.81329","url":null,"abstract":"The development of polymer nanocomposites has been an area of high scientific and industrial interest in the recent years, due to several improvements achieved in these materials, as a result of the combination of a polymeric matrix and, usually, an inorganic nanomaterial. The improved performance of those materials can include mechanical strength, toughness and stiffness, electrical and thermal conductivity, superior flame retardancy and higher barrier to moisture and gases. Nanocomposites can also show unique design possibilities, which offer excellent advantages in creating functional materials with desired properties for specific applications. The possibility of using natural resources and the fact of being environmentally friendly have also offered new opportunities for applications. This chapter aims to review the main topics and recent progresses related to polymer nanocomposites, such as techniques of characterization, methods of production, structures, compatibilization and applications. First, the most important concepts about nanocomposites will be presented. Additionally, an approach on the different types of filler that can be used as reinforcement in polymeric matrices will be made. After that, sections about methods of production and structures of nanocomposites will be detailed. Finally, some properties and potential applications that have been achieved in polymer nanocomposites will be highlighted.","PeriodicalId":178795,"journal":{"name":"Nanocomposites - Recent Evolutions","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128894780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 100

Carbon Nanocomposites: Preparation and Its Application in Catalytic Organic Transformations 碳纳米复合材料的制备及其在催化有机转化中的应用

Nanocomposites - Recent Evolutions Pub Date : 2018-11-12 DOI: 10.5772/INTECHOPEN.81109

M. Gopiraman, I. Kim

引用次数: 7

Conducting Polymers Incorporated with Related Graphene Compound Films for Use for Humidity and NH3 Gas Sensing 用于湿度和NH3气体传感的导电聚合物与相关石墨烯复合薄膜

Nanocomposites - Recent Evolutions Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.79060

N. Dinh

引用次数: 0

Electrodeposited Zinc-Nickel Nanocomposite Coatings 电沉积锌-镍纳米复合镀层

Nanocomposites - Recent Evolutions Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.80219

Heidi Conrad, T. Golden

{"title":"Electrodeposited Zinc-Nickel Nanocomposite Coatings","authors":"Heidi Conrad, T. Golden","doi":"10.5772/INTECHOPEN.80219","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.80219","url":null,"abstract":"Composite coatings can demonstrate improved property performance as compared to metals and alloy materials. One category of composite coatings is composed of metal or metal alloys with a dispersed phase of nonmetallic nanoparticles. The addition of these nanoparticles has been found to improve corrosion, wear resistance, and hardness. Producing metal composite coatings using electrochemical techniques can be advantageous due to reduced production cost, lower working temperatures, and precise control of experimental parameters. Metal coatings such as zinc have been successfully co-deposited with TiO 2 , SiO 2 , CeO 2 and mica particles and nickel has been co-deposited with a number of materials including TiO 2 , SiC, Al 2 O 3 , PTFE and silicates. Zinc-nickel alloys have long been studied for a number of properties, most notably corrosion resistance and recently their tribological properties. This chapter reviews the literature on electrodeposition of ZnNi nanocomposite coatings. Although there has been much work done on composite coatings, there is much less literature available on composite coatings with zinc-nickel alloys. So in this review, we look at the general trends for nanoparticle incorporation, deposition mechanisms, system stability, microstructures of the coatings and general corrosion trends.","PeriodicalId":178795,"journal":{"name":"Nanocomposites - Recent Evolutions","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123739340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Ultrasound-Assisted Melt Extrusion of Polymer Nanocomposites 超声辅助熔融挤出聚合物纳米复合材料

Nanocomposites - Recent Evolutions Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.80216

C. Ávila‐Orta, P. González‐Morones, Diana Agüero Valdez, Alain González-Sánchez, J. G. Martínez‐Colunga, J. M. Mata-Padilla, V. J. Cruz‐Delgado

引用次数: 7

Perovskite Strontium Doped Rare Earth Manganites Nanocomposites and Their Photocatalytic Performances 钙钛矿锶掺杂稀土锰纳米复合材料及其光催化性能

Nanocomposites - Recent Evolutions Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.79479

I. A. Abdel-Latif

引用次数: 2

Nanocomposite for Space Charge Suppression in HVDC Cable Accessory 高压直流电缆附件中空间电荷抑制的纳米复合材料

Nanocomposites - Recent Evolutions Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.80217

B. Du, Jin Li, Zhuoran Yang

{"title":"Nanocomposite for Space Charge Suppression in HVDC Cable Accessory","authors":"B. Du, Jin Li, Zhuoran Yang","doi":"10.5772/INTECHOPEN.80217","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.80217","url":null,"abstract":"HVDC cable accessories made of ethylene-vinyl acetate copolymer (EVA) by incorporation of specific fillers have to face the problem of space charge accumulation. The effects of doping contents on the space charge behaviors of EVA/ZnO composite are not completely clear. EVA composites are prepared with the fraction of 0, 1, 5 and 10 wt%, respectively, with which 5 wt% nano-sized plus 5 wt% micro-sized ZnO-doped samples are chosen for comparison. Obtained results show that the particles in EVA composite are in homodisperse. The permittivity is increased by ZnO doping and the dissipation factor of EVA composites with 1 and 5 wt% nanoparticles is lower at the lower frequencies. The homocharge injection occurs in cathode instead of anode when ZnO nanoparticles are introduced and 5 wt% nanoparticle doping performs well in suppressing space charge injection. The electric field in the 5 wt% nanoparticle-doped EVA distributes more uniformly under the high electric stress than that of others. During the depolarization procedure, the total remnant charges of 10 wt% doped samples are the least in the final. The above results are well explained by the DC conduction, apparent mobility and trap distribution characteristics.","PeriodicalId":178795,"journal":{"name":"Nanocomposites - Recent Evolutions","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125718973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0