Progress in Rubber Plastics and Recycling Technology最新文献_第10页

Investigation of the mechanical properties of concrete containing recycled aggregate and scrap crumb rubber and polypropylene fibers 含再生骨料和废橡胶、聚丙烯纤维的混凝土力学性能研究

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-12-04 DOI: 10.1177/1477760620977500

Moein Khoshroo, A. Javid, Nima Rajabi Bakhshandeh, Mohamad Shalchiyan

{"title":"Investigation of the mechanical properties of concrete containing recycled aggregate and scrap crumb rubber and polypropylene fibers","authors":"Moein Khoshroo, A. Javid, Nima Rajabi Bakhshandeh, Mohamad Shalchiyan","doi":"10.1177/1477760620977500","DOIUrl":"https://doi.org/10.1177/1477760620977500","url":null,"abstract":"In this study, the effect of using crumb rubber and recycled aggregates on the mechanical properties of concrete has been evaluated as areplacement of fine and coarse aggregates In order to add the admixtures and evaluate their combined effect, 20 different types of concrete mixture ratio were prepared. The results indicated that in those samples containing crumb rubber and recycled aggregates the compressive strength is reduced and adding fiber up to 0.1%. to these concrete samples can improve the compressive strength Also, the tensile strength of the samples mixed with crumb rubber and recycled aggregates were decreased, and with the addition of propylene fiber up to 0.4%. the tensile strength slightly increased Moreover by adding the crumb rubber to the samples the elasticity modulus was reduced but by adding fiber to samples about 0.1% and 0.2.% the modulus of elasticity of concrete in all samples were increased. According to the results, it can be said that using the combination of 5% of crumb rubber as a replacement of fine aggregate, and the combination of 35% of recycled aggregates as a replacement of coarse aggregate, and also by adding 0.1% polypropylene fiber in volumetric percentage of concrete along with adding 7% of micro silica as a replacement of cement led to the best effect on the mechanical properties of concrete.","PeriodicalId":20860,"journal":{"name":"Progress in Rubber Plastics and Recycling Technology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74228153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Thermo-catalytic degradation of different consumer plastic wastes by zeolite a catalyst: A kinetic approach 沸石催化剂热催化降解不同消费塑料废弃物的动力学方法

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-11-10 DOI: 10.1177/1477760620972407

S. Patnaik, A. K. Barick, A. K. Panda

{"title":"Thermo-catalytic degradation of different consumer plastic wastes by zeolite a catalyst: A kinetic approach","authors":"S. Patnaik, A. K. Barick, A. K. Panda","doi":"10.1177/1477760620972407","DOIUrl":"https://doi.org/10.1177/1477760620972407","url":null,"abstract":"This research work includes the effect of Zeolite-A catalyst on the thermal degradation behavior of six different consumer plastic wastes like high density polyethylene (HDPE), polypropylene (PP), polyethylene terephthalate (PET), polymethylene methacralate (PMMA), polystyrene (PS) and polytetrafluoro ethylene (PTFE) through kinetic approach by using thermogravimetric analysis (TGA) data. Kinetic parameters such as reaction order, activation energy, and Arrhenius constant for the degradation of different waste plastics is determined using model fitting Coats–Redfern method. All the plastics show one-step degradation in the temperature range of 300–600°C. There is a significant decrease in activation energy (Ea) for the thermo-catalytic decomposition of the plastics in presence of Zeolite A catalyst. The extent of catalytic effect is found different for different plastics in the order of HDPE < PP < PS < PET < PMMA < PTFE. The order of the thermal degradation reaction is also found different for different types of plastics. The order of the reaction is altered in case of PET, PS and PTFE in presence of the catalyst but it is unaffected in case of remaining plastics. This treatment would reduce the energy consumption of pyrolysis process and also make the process economical viable.","PeriodicalId":20860,"journal":{"name":"Progress in Rubber Plastics and Recycling Technology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81806983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Improving hysteresis of a typical carbon black-filled natural rubber tread compound by using a novel coupling agent 用新型偶联剂改善典型炭黑填充天然橡胶胎面胶的滞回性能

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-11-01 DOI: 10.1177/1477760619895015

S. Chowdhury, K. Pal, H. Satpathi, A. Bandyopadhyay, R. Mukhopadhyay, Sanjay Bhattacharyya

引用次数: 9

A review on kenaf fiber hybrid composites: Mechanical properties, potentials, and challenges in engineering applications 红麻纤维混杂复合材料的力学性能、工程应用潜力和挑战

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-09-02 DOI: 10.1177/1477760620953438

Ikhwan Yusuff, N. Sarifuddin, A. Ali

引用次数: 9

Influence of silicon dioxide addition and processing methods on structure, thermal stability and flame retardancy of EVA/NR blend nanocomposite foams 二氧化硅添加量及加工方式对EVA/NR共混纳米复合泡沫结构、热稳定性和阻燃性的影响

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-09-02 DOI: 10.1177/1477760620953437

Alif Walong, B. Thongnuanchan, T. Sakai, N. Lopattananon

{"title":"Influence of silicon dioxide addition and processing methods on structure, thermal stability and flame retardancy of EVA/NR blend nanocomposite foams","authors":"Alif Walong, B. Thongnuanchan, T. Sakai, N. Lopattananon","doi":"10.1177/1477760620953437","DOIUrl":"https://doi.org/10.1177/1477760620953437","url":null,"abstract":"Rubber nanocomposite foams based on 60/40 ethylene vinyl acetate (EVA)/natural rubber (NR) were melt-mixed with flame retardant silicon dioxide (SiO2) (20 parts per hundred rubber, phr), and foamed by compression molding process. In this study, the effect of mixing phenomena of SiO2 through two different compounding techniques such as direct mixing (DM) and phase selective mixing (PSM) methods on structure, thermal stability, combustility and flame retardancy of EVA/NR blend nanocomposite foams were investigated. DM method is a melt mixing of EVA, NR, layered silicate and SiO2, followed by foaming. PSM is a new method based on pre-mixing EVA with SiO2, then melt mixing of EVA/SiO2 masterbatch with NR and layered silicate, and finally foaming. Based on TEM technique, it was found that the SiO2 was exclusively located in dispersed NR phase for the sample prepared by DM method, and the SiO2 was preferably dispersed in continuous EVA matrix when PSM method was employed. However, the different mixing methods did not significantly alter their cellular structures. The thermal stability and char residue content of foamed samples with SiO2 increased obviously when compared with those of corresponding foams without SiO2. The results based on limiting oxygen index (LOI) test and oxygen bomb calorimetry indicated that the foams combined with SiO2 had better combustion resistance and flame retardancy due to barrier effect of thermally stable silicon-based char layer. Further, the SiO2 filled foamed system obtained from the PSM method showed a higher degree of improvement in thermal stability, combustion resistance and flame retardancy than that of DM method because the homogeneous dispersion of SiO2 in EVA matrix rather than the selective dispersion in NR phase. This resulted in the continuity of flame retardant EVA/SiO2 phase in the 60/40 EVA/NR nanocomposite foams, which exerted more efficient fire barrier of the silicon-based char layer.","PeriodicalId":20860,"journal":{"name":"Progress in Rubber Plastics and Recycling Technology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76059558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Rubber–rubber blends: A critical review 橡胶-橡胶共混物:评述

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-08-01 DOI: 10.1177/1477760619895002

Abitha Vayyaprontavida Kaliyathan, KM Varghese, A. S. Nair, Sabu Thomas

{"title":"Rubber–rubber blends: A critical review","authors":"Abitha Vayyaprontavida Kaliyathan, KM Varghese, A. S. Nair, Sabu Thomas","doi":"10.1177/1477760619895002","DOIUrl":"https://doi.org/10.1177/1477760619895002","url":null,"abstract":"The blending of different rubbers is one of the effective methods to achieve required performance properties in their final products. This article reviews the thermodynamic considerations of rubber–rubber blends and their filled systems. Factors affecting the rubber blend morphology (i.e. distribution mechanism of fillers, curatives and other compounding ingredients) and preparation techniques for rubber–rubber blends emphasizing their advantages and disadvantages are well discussed in this review. Microscopy is the field of interest to all material scientists. In the case of rubber blends, microscopy is an essential tool in order to understand the morphology, that is, size, shape and distribution of phases and filler particles in the rubber–rubber blend. In this review, selected scientific reports based on optical microscopy, electron microscopy and atomic force microscopy in rubber–rubber blends are discussed. Rubber material is a complex macromolecule; it has significant proportion of fillers, processing aids and curing agents; therefore, only a very few studies have been reported on the microscopic aspects of filled rubber–rubber blends. In particular, influence of rubber blend composition, fillers (micro and nano length scales) and processing additives on the morphology of rubber blends systems has not been systematically reviewed and discussed in the scientific literature. Therefore, in the present scenario, this review was thought of, which deals with the essential background to rubber–rubber blends, miscibility and morphological characterization of various rubber blend systems by microscopy. It is very important to add that although there is scattered information on these aspects in the scientific literature, to date a comprehensive review has not been published. The pros, cons, artefacts and the new challenges on the use of microscopy for the characterization of rubber–rubber blends are also discussed here.","PeriodicalId":20860,"journal":{"name":"Progress in Rubber Plastics and Recycling Technology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91360532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

Effect of electron beam irradiation on the properties of EVA/EPDM blends: 电子束辐照对EVA/EPDM共混物性能的影响

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-08-01 DOI: 10.1177/1477760619895005

Chen Haoyang, Zhu Xiaoyi, Li Kangyu, Wu Han, Zhang Ming, Yan Chang-hao

引用次数: 5

Comparative evaluation of oil resistance, dielectric properties, AC conductivity, and transport properties of nitrile rubber and chlorinated nitrile rubber 丁腈橡胶和氯化丁腈橡胶耐油性能、介电性能、交流电导率和输运性能的比较评价

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-05-20 DOI: 10.1177/1477760620925490

A. Nihmath, M. Ramesan

{"title":"Comparative evaluation of oil resistance, dielectric properties, AC conductivity, and transport properties of nitrile rubber and chlorinated nitrile rubber","authors":"A. Nihmath, M. Ramesan","doi":"10.1177/1477760620925490","DOIUrl":"https://doi.org/10.1177/1477760620925490","url":null,"abstract":"Nitrile rubber (NBR) has been extensively used in high oil resistance application such as in automotive seals and gaskets. Due to the poor mechanical strength of NBR, the performance of these products undergoes deterioration when it is in contact with hot oils and solvents. The aim of the present work is to investigate the molecular transport of petroleum fuels and oil through chlorinated NBR (Cl-NBR) with respect to different contents of chlorine. It also focuses on the effect of chlorine content on the alternating current (AC) conductivity and dielectric properties of Cl-NBR for flexible electronic applications. The transport characteristics of petroleum fuels through the NBR and Cl-NBR membranes have been studied by a simple sorption gravimetric analysis in the temperature range 27–50°C. The diffusion results have been explained in terms of the size of liquid molecules and the diffusion mechanism was found to follow the anomalous trend. The diffusion, sorption, solvent uptake, and permeation constants were investigated and were found to decrease with increase in the level of chlorine content in NBR matrix. The activation energy for diffusion and permeation processes were increased and reached maximum value for Cl-NBR (22% Cl content). The oil resistance property of Cl-NBR was significantly higher than pure NBR. The swelling of Cl-NBR in ASTM oil was three times lower than NBR. The electrical conductivity and dielectric properties of NBR was found to be increased with the increase in chlorine content of NBR. NBR showed the AC conductivity value of 7.24 S cm−1 at 106 Hz, while the Cl-NBR with 24% chlorine showed the conductivity value of 4.69 S cm−1. The higher AC conductivity and dielectric properties, solvent, and oil resistance of Cl-NBR than that of NBR suggests that the Cl-NBR can be used as multifunctional materials for flexible nano-electronic devices and high-performance oil-resistant applications.","PeriodicalId":20860,"journal":{"name":"Progress in Rubber Plastics and Recycling Technology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81847492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Enhanced mechanical properties of plasticized polylactic acid filament for fused deposition modelling: Effect of in situ heat treatment 熔融沉积造型用增塑聚乳酸长丝的增强力学性能:原位热处理的影响

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-05-01 DOI: 10.1177/1477760619895018

Maf Rafie, K. Marsilla, Z. Hamid, A. Rusli, M. Abdullah

{"title":"Enhanced mechanical properties of plasticized polylactic acid filament for fused deposition modelling: Effect of in situ heat treatment","authors":"Maf Rafie, K. Marsilla, Z. Hamid, A. Rusli, M. Abdullah","doi":"10.1177/1477760619895018","DOIUrl":"https://doi.org/10.1177/1477760619895018","url":null,"abstract":"The objective of this study is to characterize the effect of in situ heat treatment on polylactic acid (PLA) and plasticized PLA during fused deposition modelling (FDM) with the motivation to improve their mechanical, thermal and physical properties. The in situ heat treatment was formed during the FDM by adjusting the bed temperature to 70°C, 90°C and 120°C. The performance of 3D, the printed samples, was compared with the compression moulded samples treated at the same temperature using a vacuum oven. PLA was plasticized with poly (ethylene glycol) (PEG) at different compositions of 0, 5 and 10 wt% of PEG. The properties of PLA, plasticized PLA and FDM-printed sample were analysed using Instron, differential scanning calorimeter (DSC) and X-ray diffraction (XRD). It was found that the addition of PEG into PLA decreased the tensile strength, elongation at break and tensile modulus of the materials. However, after heat treatment in the vacuum oven and FDM, the properties were generally higher at 90°C and this was believed to be primarily due to the effect of crystallization. This can be proved by formation of double melting peak, correspond to melt-crystallization mechanism, observed in DSC. The formation of different crystal was supported by XRD analysis where the amorphous peak had transformed into sharp peak at 16.9° and 19.3°, which indicates an improved crystallinity. Comparison between the compression moulded sample and FDM demonstrated that the in situ heat treatment in FDM had the most significant impact on tensile modulus.","PeriodicalId":20860,"journal":{"name":"Progress in Rubber Plastics and Recycling Technology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76696007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Waste tires pyrolysis oil as a source of energy: Methods for refining 废轮胎热解油作为能源:精炼方法

IF 2.6 4区材料科学

Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-05-01 DOI: 10.1177/1477760619895026

V. Toteva, K. Stanulov

引用次数: 18