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Effects of Fiber Surface-Treatment and Sizing on the Dynamic Mechanical and Interfacial Properties of Carbon/Nylon 6 Composites
Donghwan Cho, Suk Hyang Yun, Junkyung Kim, Soonho Lim, Min Park, 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2004, Vol.5 No.1 1 1-5 (5 pages)
6 composites obtained is 0.11 Fig. 1. Chemical structures of six sizing materials used for car- bon fibers and fabrics in this work. (1) Phenylethynyl-termi- nated poly(amic acid), (2) Epoxy resin (Curing agent; Diethyl- enetriamine), (3) Vinyl ester resin (Catalyst: Methyl ethyl ketone peroxide, Accelerator: Cobalt naphthenate), (4) Poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate), (5)... -
Inducible Nitric Oxide Synthase mRNA Expression and Nitric Oxide Production in Silica-Induced Acute Inflammatory Lung Injury
JiheeLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.2 12 233-239 (7 pages)
a cell sizing an띠yzer (Coulter Model ZBIwith a channelizer 256; Coulter Electronics， FL， USA) as described by Lane and Mehta (1990). Red blood cells (RBC)， lym phocytes， polymorhonuclear neutrophils， and alve olar macrophages were distinguished by their char acteristic cell volumes (Castranova et al， 1990) ..PAGE:3 INOS mRNA and Nitric Oxide in Lung Injury 235 Lactate dehydrogenae... Stimulated alveolar macrophages and neutrophils produce nitric oxide, a free radical by an inducible nitric oxide synthase(iNOS), which reacts with superoxide anion to form peroxynitrite, a more highly reactive toxic species. The objectives of the present study were to evaluate acute inflammatory lung injury and to determine iNOS mRNA induction and nitric oxide production by rat broncho-alveolar lavage cells following intratracheal treatment of silica. After 4 h exposure to silica, differential... -
Phylogenetic Analysis of Phaeosphaeria Species Using Mating Type Genes and Distribution of Mating Types in Iran
Fariba Ghaderi, Azadeh Habibi, Bahram Sharifnabi 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 2 78-89 (12 pages)
phylogenetic model averaging. Mol. Biol. Evol. 25:1253-1256. Quaedvlieg, W., Verkley, G. J., Shin, H. D., Barreto, R. W., Alf- enas, A. C., Swart, W. J., Groenewald, J. Z. and Crous, P. W. 2013. Sizing up Septoria. Stud. Mycol. 75:307-390. Reszka, E., Chung, K. R., Tekauz, A., Malkus, A., Arseniuk, E., Krupinsky, J. M., Tsang, H. and Ueng, P. P. 2005. Presence of β-glucosidase (bgl1) gene in... Phaeosphaeria species are pathogenic on wheat, barley and a wide range of wild grasses. To analyze mating type loci of the Phaeosphaeria species and investigate mating type distribution in Iran, we sequenced mating type loci of 273 Phaeosphaeria isolates including 67 isolates obtained from symptomatic leaves and ears of wheat, barley, and wild grasses from two wheatgrowing region in Iran as well as 206 isolates from our collection from other regions in Iran which were isolated in our previous... -
Effect of the surface modification using MWCNTs with different L/D by two different methods of deposition on the IFSS of single carbon fiber-epoxy resin composite
Minerva L. Herrera-Sosa, Alex Valadez-Gonz?lez, Humberto V?zquez-Torres, Pierre G. Mani-Gonz?lez, Pedro J. Herrera-Franco 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 3 18-27 (10 pages)
a density of 1.08 g/mL at 25°C. Epoxy resin DER 331, from Dow Company was chosen as the matrix mate- rial and the resin curing agent used was ethylenediamine from Sigma-Aldrich. 2.2. Surface treatment of carbon fbers Treatment of the CFs was initiated by removing the commer- cial sizing by immersing them in Methyl-ethyl-ketone, for 12 h at 80°C with mechanical agitation (CF-Raw). This process... were surface treated using nitric acid (HNO3) and polyethyleneimine (PEI) prior to their deposition on carbon fibers (CF). Before the hierarchical reinforcement with CF-MWCNT, the CFs were treated with 3-glycidoxypropyltrimethoxysilane, a coupling agent (Z6040) and with poly(amidoamine) (PAMAM) a dendrimer containing an ethylenediamine core and amine surface groups. The MWCNT were deposited on the CF using two methods, by electrostatic attraction and by chemical reactions. The changes in the CF... -
Mechanical and electrical properties of epoxy resin/epoxidized castor oil/carbon fiber cloth composites
Fan-Long Jin, Heng Zhang, Shan-Shan Yao, Soo-Jin Park 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 12 105-109 (5 pages)
(2011). https://doi.org/10.1016/j. compositesb.2011.02.005. [15] Fang C, Wang J, Zhang T. Interlaminar improvement of carbon fber/epoxy composites via depositing mixture of carbon nanotubes and sizing agent. Appl Surf Sci, 321, 1 (2014). https://doi. org/10.1016/j.apsusc.2014.09.170. ..PAGE:5 Mechanical and electrical properties of DGEBA/ECO/CFC composites 109 http://carbonlett.org [34] Ashraf... Carbon fibers (CFs) have a unique combination of outstanding mechanical, physical, and chemical properties and are among the materials most frequently used in the preparation of a large variety of composites [1-5]. CF-reinforced polymer composites have been widely used in many advanced technological fields, such as aerospace, engineering, sporting goods, automobiles, and marine industry during the past few decades due to their excellent properties, including high strength-to-weight ratios, light... -
Effect of fiber-matrix adhesion on the fracture behavior of a carbon fiber reinforced thermoplastic-modified epoxy matrix
H.J. Carrillo-Escalante, A. ?lvarez-Castillo, A. Valadez-Gonz?lez, P. J. Herrera-Franco 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 6 47-56 (10 pages)
carbon fber with commercial sizing was used and also treated with a known silane, (3-glycidoxy propyl trimethoxysilane) coupling agent. Toughness was determined using the double can- tilever test, together with surface analysis after failure using scanning electron microscope. The presence of polysulfone particles improved the fracture behavior of the composite, but fber-matrix adhesion seemed... In this study, the fracture behavior of a thermoplastic-modified epoxy resin reinforced with continuous carbon fibers for two levels of fiber-matrix adhesion was performed. A carbon fiber with commercial sizing was used and also treated with a known silane, (3-glycidoxy propyl trimethoxysilane) coupling agent. Toughness was determined using the double cantilever test, together with surface analysis after failure using scanning electron microscope. The presence of polysulfone particles improved...