Academic Journal of Polymer Science最新文献_第6页

Thermodynamics of Biomass-Based Solid Fuels 生物质固体燃料热力学

Academic Journal of Polymer Science Pub Date : 2018-10-09 DOI: 10.19080/AJOP.2018.02.555577

M. Ioelovich

{"title":"Thermodynamics of Biomass-Based Solid Fuels","authors":"M. Ioelovich","doi":"10.19080/AJOP.2018.02.555577","DOIUrl":"https://doi.org/10.19080/AJOP.2018.02.555577","url":null,"abstract":"In this paper, solid fuels made of plant biomass were studied as an alternative to fossil coals. For this purpose, experimental and calculation methods were applied to determine the standard change of internal energy or specific energy of combustion enthalpies of combustion and for individaual components of plant biomass (lignin, cellulose, hemicelluloses, extractives, etc.), as well as of some additives of solid biofuels. The experiments were carried out using an oxygen bomb calorimeter, whereas calculations were performed by the equation: is number of atoms C, H and O, respectively, in molecule of organic substance or in repeat unit of polymer. Using the results obtained for individual components, the standard thermodynamic characteristics (TDC), o Y , of various biomasses and their based fuels were found according to additivity rule, as follows: is weight part of the component in the biofuel. The results revealed that calculated TDC the solid fuels were close to experimentally obtained characteristics. The obtained data evidence on adequacy of the additivity rule to evaluate the TDC of solid biofuels. It has been also found that fuel pellets consisting of plant biomass and additive of plastic binders are the most promising solid fuels, since they provide a higher value of thermal energy and increased energy density than the biomass only.","PeriodicalId":6991,"journal":{"name":"Academic Journal of Polymer Science","volume":"400 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78098372","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: 7

Synthesis of Photoactive Ternary Cadmium Sulfoselenide Thin Film via Cost-effective Chemical Technique for Solar Cell Application 经济高效的化学技术合成光活性三元硫代硒化镉薄膜

Academic Journal of Polymer Science Pub Date : 2018-10-04 DOI: 10.19080/AJOP.2018.01.555575

Bhosale Pn

引用次数: 1

Piezoelectric and Dielectric Properties of PZT-Epoxy Composite Thick Films pzt -环氧复合厚膜的压电和介电性能

Academic Journal of Polymer Science Pub Date : 2018-10-04 DOI: 10.19080/AJOP.2018.01.555574

Cook-Chennault Ka

{"title":"Piezoelectric and Dielectric Properties of PZT-Epoxy Composite Thick Films","authors":"Cook-Chennault Ka","doi":"10.19080/AJOP.2018.01.555574","DOIUrl":"https://doi.org/10.19080/AJOP.2018.01.555574","url":null,"abstract":"Ferroelectric films have been of interest over the last 20 years because of the possibility of using them for non-volatile memory applications [1-3], MEMS [4-6], ultrasonic devices [4,7], battery separators [8-10], biomedical scaffolds [11] and energy harvesting devices where they are coupled with batteries [12]. The properties if piezoelectric films cannot be compared directly with those of bulk materials of the same composition because their processing and electrical properties differ. Previous work on the preparation of piezoelectric films includes RF planar magnetron sputtering [13,14], ion beam sputtering [15] or DC magnetron sputtering [16], where most recently, researchers have succeeded in fabricating films using various chemical methods of deposition such as; metal organic chemical vapor deposition (MOCVD) [1719], chemical solution deposition [20,21], metalorganic decomposition (MOD) [22,23], and also pulsed laser deposition (PLD) [24-26]. The sol-gel method has the benefits of compositional control, reduced temperature processing of highly uniform, dense, crack-free films and low cost of fabrication [27,28]. These methods of processing ferroelectric films have been used with notable success to produce piezoelectric ceramic films comprised of Lead Zirconate Titanate (PbZrxTi1-xO3 also known as, PZT). PZT has a high dielectric constant, ferroelectric, piezoelectric, and pyroelectric properties. The ideal properties of PZT have made its application to transducer, sensor and actuator devices ubiquitous. However, the poor mechanical strength of these devices has limited their life cycle and performance. Therefore, interest in polymer-ceramic [29-33] (and ceramicceramic [34,35]) composites has emerged as an area of interest because polymers are flexible, low cost, easily processed [36,37] and able to be polarized under the influence of an external electric field [38].","PeriodicalId":6991,"journal":{"name":"Academic Journal of Polymer Science","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83179444","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

Effects of Nanoparticles on Rheological Behavior of Polyacrylamide Related to Enhance Oil Recovery 纳米颗粒对提高采收率的聚丙烯酰胺流变行为的影响

Academic Journal of Polymer Science Pub Date : 2018-10-03 DOI: 10.19080/ajop.2018.01.555573

M. Bilal Khan

引用次数: 1

Polymer Enhanced Oil Recovery Process: An Updated, Narrowed Review 聚合物提高采油工艺:最新的窄范围综述

Academic Journal of Polymer Science Pub Date : 2018-09-24 DOI: 10.19080/ajop.2018.01.555572

Tamsilian Y

引用次数: 1

Polymer-Based Approach in Ceramic Materials Processing for Energy Device Applications 基于聚合物的能源器件陶瓷材料加工方法

Academic Journal of Polymer Science Pub Date : 2018-09-14 DOI: 10.19080/AJOP.2018.01.555571

M. R. Somalu

{"title":"Polymer-Based Approach in Ceramic Materials Processing for Energy Device Applications","authors":"M. R. Somalu","doi":"10.19080/AJOP.2018.01.555571","DOIUrl":"https://doi.org/10.19080/AJOP.2018.01.555571","url":null,"abstract":"High temperature perovskite-type oxide conductive ceramics have attracted great attention worldwide due to the fact that these materials have a great potential to be used as electrolyte and cathode components in solid oxide fuel cells (SOFCs). SOFC is currently deemed as one of the most promising future power generation devices due to its high energy conversion efficiency, less/zero pollutant emission and able to operate on various fuels. Two major concerns that limited the performance of the current developed SOFC systems are low electrolyte conductivity and high electrode polarization resistance [1,2]. Controlling and modifying the microstructural properties of the ceramics components of SOFC is a promising way to tackle the concerns and could be achieved by selecting suitable ceramics processing routes as they greatly affect the microstructure properties of the produced ceramics materials [3]. Traditionally, a Simple SolidState Reaction (SSR) method is used to prepare the perovskitetype oxide ceramics materials [4-7]. However, this method resulted in a poor microstructural property of the produced powders due to high temperature of treatment (> 1400 °C) and the produced powders are frequently contaminated [8,9]. Hence, Wet Chemical Methods (WCMs) are introduced to overcome the drawbacks of the SSR method. The WCMs are able to produce fine powders with high purity and good homogeneity at lower processing temperature than that of the SSR method [3,10]. One the most popular WCMs is a sol-gel method. The preparation of materials through this method is thoroughly discussed in the following section.","PeriodicalId":6991,"journal":{"name":"Academic Journal of Polymer Science","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87293053","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: 3

Wettability Properties of Biochar Added Wood/Polypropylene Composites 生物炭添加木材/聚丙烯复合材料的润湿性研究

Academic Journal of Polymer Science Pub Date : 2018-08-24 DOI: 10.19080/AJOP.2018.01.555570

Oisik Das

引用次数: 6

Analysis of Non-Uniform Expansion Behavior of Injected EVA 注入EVA的非均匀膨胀行为分析

Academic Journal of Polymer Science Pub Date : 2018-08-14 DOI: 10.19080/ajop.2018.01.555569

Schneider El

引用次数: 6

Inorganic and Hybrid Polymers as Evolution of Polymer Materials Science 无机聚合物和杂化聚合物:高分子材料科学的发展

Academic Journal of Polymer Science Pub Date : 2018-08-03 DOI: 10.19080/AJOP.2018.01.555567

Shaulov A Yu

引用次数: 0

A Review of Sulfur Vulcanization of Rubber 橡胶硫硫化研究进展

Academic Journal of Polymer Science Pub Date : 2018-08-03 DOI: 10.19080/ajop.2018.01.555568

A. Ansarifar

引用次数: 2