Journal of Elastomers and Plastics最新文献_第10页

Properties and Mechanism Research on Polybutadiene Styrene Rubber (SBR) Composites Containing Nano-BaSO4 含纳米baso4的聚丁二烯苯乙烯橡胶(SBR)复合材料的性能及机理研究

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-05-01 DOI: 10.1177/0095244308099412

Wang Jincheng, Zheng Xiaoyu, Chen Yuehui, Lu Zhijun, Zhu Zengliang

引用次数: 4

Studies on Sugarcane Bagasse Fiber—Thermoplastics Composites 蔗渣纤维-热塑性复合材料的研究

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-05-01 DOI: 10.1177/0095244308095014

H. A. Youssef, M. Ismail, Magdy A. M. Ali, A. H. Zahran

{"title":"Studies on Sugarcane Bagasse Fiber—Thermoplastics Composites","authors":"H. A. Youssef, M. Ismail, Magdy A. M. Ali, A. H. Zahran","doi":"10.1177/0095244308095014","DOIUrl":"https://doi.org/10.1177/0095244308095014","url":null,"abstract":"The influence of thermoplastic/bagasse fiber ratio, as well as electron beam irradiation on the physicomechanical properties of low-density polyethylene (LDPE) and high-density polyethylene (HDPE) composites has been investigated. The concentration of bagasse fibers ranges from 20 to 80 wt%. The results indicate that there is deterioration in the properties as fiber concentration increased; however, it becomes significant only beyond 50% (w/w) bagasse fibers in both LDPE and HDPE composites. Also, the data show that this decrease in the properties is more pronounced in HDPE rather than LDPE composites. It can be noticed that enhancing adhesion between fibers and thermoplastics can be achieved by irradiation of the thermoplastic phase prior to mixing at 10 up to 60 kGy; a maximum improvement in the properties is observed at 40 and 10 kGy for LDPE and HDPE, respectively. From the data it can be seen that the increase in the flexural properties is higher than 100%, while it does not exceed 65% for impact toughness. On the other hand, the reduction in water absorption is not more than 5.5%. Also, examining SEM micrographs reveals that there is some sort of adhesion between fibers and thermoplastics phases.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"115 1","pages":"245 - 262"},"PeriodicalIF":1.7,"publicationDate":"2009-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74286968","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: 25

Preparation and Properties of Polyurethanes based on Castor Oil Chemically Modified with Yucca Starch Glycoside 丝兰淀粉苷化学改性蓖麻油聚氨酯的制备及性能研究

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-05-01 DOI: 10.1177/0095244308091785

M. Valero, J. Pulido, J. C. Hernández, J. A. Posada, Á. Ramírez, Zhengdong Cheng

{"title":"Preparation and Properties of Polyurethanes based on Castor Oil Chemically Modified with Yucca Starch Glycoside","authors":"M. Valero, J. Pulido, J. C. Hernández, J. A. Posada, Á. Ramírez, Zhengdong Cheng","doi":"10.1177/0095244308091785","DOIUrl":"https://doi.org/10.1177/0095244308091785","url":null,"abstract":"We present novel polyurethanes from renewable materials of castor oil and starch. Castor oil is transesterified with pentaerythritol in order to obtain a wide range of polyols. Yucca starch is converted into glycoside through transglycosylation reactions with ethylene glycol and glycerol. The glycosides from starch are then chemically incorporated to the castor oil polyols by a second transesterification reaction to generate a sequence of polyol-glycosides with a high level of polyhydroxyl content. These products are characterized by the hydroxyl value, viscosity, and specific gravity as a function of the glycoside type content and the kind of castor oil polyol prepared. MALDI TOF mass spectroscopy is used to find the mass fraction of glycosides and polyol-glycosides. Polyurethanes are synthesized from the polyol-glycosides by reaction with isophorone diisocyanate, under different NCO/OH molar ratios. The polymer characterization is accomplished by Fourier transform infrared analysis, tensile stress—strain tests, Shore A hardness, thermogravimetric analysis, chemical resistance to solvents, scanning electron microscopy, and dynamic-mechanical thermal analysis.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"112 1","pages":"223 - 244"},"PeriodicalIF":1.7,"publicationDate":"2009-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90769615","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: 31

Surface Modification of Phosphogypsum Used as Reinforcing Material in Polyethylene Composites 聚乙烯复合材料增强材料磷石膏的表面改性研究

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-04-01 DOI: 10.1177/0095244308092436

Y. Denev, Georgi D. Denev, A. Popov

引用次数: 7

Mechanical Properties and Fracture Surface Morphology of Dehp and Dinch Based Vinyl Plastisols Dehp和Dinch基乙烯基塑料溶胶的力学性能和断口形貌

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-03-01 DOI: 10.1177/0095244308092438

J. E. Crespo, L. Sánchez, R. Balart, J. López

{"title":"Mechanical Properties and Fracture Surface Morphology of Dehp and Dinch Based Vinyl Plastisols","authors":"J. E. Crespo, L. Sánchez, R. Balart, J. López","doi":"10.1177/0095244308092438","DOIUrl":"https://doi.org/10.1177/0095244308092438","url":null,"abstract":"Owing to the relevance of plasticized PVC in the industrial plastic transformation sector, mainly in such sectors as interior decoration (furniture, wood) toys, household goods, shoes, auxiliary sectors, etc., this material makes an interesting study subject from the perspective of quality improvement, benefits, and versatility. The present study analyzes the fracture behavior of vinyl plastisols. With this objective, a low-toxicity plasticizer derived from dicarboxilate di-isononyl-cyclohexane-1,2-dicarboxylate,- DINCH and another plasticizer derived from ftalate, diethylhexyl phthalate — DEHP, widely employed at an industrial level, albeit with toxicity problems, has been used. The basis of this study is an analysis of the effects of the DINCH and DEHP plasticizers used, and their concentration in the fracture of the plastisol in order to optimize the service response of the material. This is conducted by means of a study of the fracture morphologies of the plastisols, in order to determine the mechanisms which cause the crack and to carry out a classification of the resulting topography of the fracture. This is directly linked to the plasticizer concentration, to the type of plasticizer used, and to the mechanical response obtained from the material.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"42 1","pages":"145 - 161"},"PeriodicalIF":1.7,"publicationDate":"2009-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90736138","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: 3

Crosslinking Kinetics of Blends of Ethylene Vinyl Acetate and Ground Tire Rubber 醋酸乙烯酯与磨砂轮胎橡胶共混物的交联动力学

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-03-01 DOI: 10.1177/0095244308095015

O. Bianchi, R. Fiorio, J. N. Martins, A. J. Zattera, C. H. Scuracchio, L. B. Canto

引用次数: 28

Elastomer-based Microwave Absorbing Materials 弹性体基微波吸收材料

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-03-01 DOI: 10.1177/0095244308092439

R. Shtarkova, N. Dishovsky

引用次数: 17

The Analytical Model of Shear Properties of the Pre-impregnated Woven Fabric Composite 预浸渍机织物复合材料剪切性能分析模型

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-03-01 DOI: 10.1177/0095244308088877

Wang Wei, Du Xingwen

引用次数: 0

Activation Energy and Thermodynamic Parameters of Cyclization in Purified Natural Rubber Latex Using a Trimethyl Silyl Triflate 用三甲基硅酸三酯进行天然纯天然胶乳环化反应的活化能和热力学参数

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-03-01 DOI: 10.1177/0095244308092437

S. Riyajan

{"title":"Activation Energy and Thermodynamic Parameters of Cyclization in Purified Natural Rubber Latex Using a Trimethyl Silyl Triflate","authors":"S. Riyajan","doi":"10.1177/0095244308092437","DOIUrl":"https://doi.org/10.1177/0095244308092437","url":null,"abstract":"The property of natural rubber (NR) is more interesting, except for some properties which need to improve. The cyclization reaction is an interesting reaction for modified NR to thermoplastic elastomer. The kinetic cyclization of deproteinized natural rubber (DPNR) or purified NR latex effectively performed in latex phase by using trimethylsilyl-trifluoromethane sulphonate or trimethyl silyl triflate (TMSOTF) is studied at various temperatures and times. The cyclized products are confirmed by NMR spectroscopies including one and 2D NMR. The kinetic of cyclization is investigated. It is found that the degree of cyclization in DPNR is a function of cyclization conditions. The rate constant (k) is 200 (s-1) at 100°C based on 95% of regression and the activation energy of cyclization in DPNR latex is 147.66kJ/mol. Some thermodynamic parameters: enthalpy, entropy, and free energy activation of 144.6kJ/mole, -269.11J/mole, and 246.9kJ/mole, respectively, are obtained for the cyclization of DPNR. The kinetic and thermodynamic parameters of cyclization obtained from this study indicate that an increase in the process temperature would increase the rate of cyclization formation.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"42 1","pages":"133 - 144"},"PeriodicalIF":1.7,"publicationDate":"2009-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/0095244308092437","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72508644","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: 7

Aliphatic Liquid Transport through Heterogeneous Ethylene—Propylene— Diene Monomer Rubber/Poly (ethylene-co-vinyl acetate) Blends 非均相乙烯-丙烯-二烯单体橡胶/聚(乙烯-醋酸乙烯)共混物中的脂肪族液体输运

IF 1.7 4区材料科学

Journal of Elastomers and Plastics Pub Date : 2009-01-01 DOI: 10.1177/0095244308088880

Shyla George, P. Kumari, G. Unnikrishnan

引用次数: 3