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Wyszukujesz frazę "81.05.Qk" wg kryterium: Temat


Tytuł:
Silane Coupling Efficiency on Thermal Properties of Volcanic Ash Filled PPS Composites
Autorzy:
Kutluk, T.
Çoban, O.
Bora, M.
Fidan, S.
Sınmazçelik, T.
Powiązania:
https://bibliotekanauki.pl/articles/1186943.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
Thermal properties of volcanic ash filled polyphenylene sulfide (PPS) composites have been investigated with respect to surface treatment that was conducted with 3-aminopropyltriethoxysilane (3-APTS) which had an organic functional group. Volcanic ash/PPS composite samples were prepared by using DSM Xplore 15 ml twin screw microcompounder and DSM Xplore 12 ml injection molding machines. The content of volcanic ash in composite samples was varied as 10 and 15 wt%. Volcanic ash filler dispersion and adhesion between volcanic ash particles and PPS matrix were examined by scanning electron microscopy. Thermal properties such as crystallization and melting behavior were investigated by TA Instruments Q200 differential scanning calorimeter. According to the test results, the relation between the thermal properties and surface treatment was determined as a function of melting temperature and melting enthalpy. Additionally, crystallization behavior was investigated according to surface treatment.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 498-500
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Modification Effect of Volcanic Ash Particles Using Silane Coupling Agent on Mechanical Properties of Polyphenylene Sulfide Composites
Autorzy:
Bora, M.
Çoban, O.
Fidan, S.
Kutluk, T.
Sinmazçelik, T.
Powiązania:
https://bibliotekanauki.pl/articles/1187006.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
The surface treatment of volcanic ash particles with various concentrations (1-3-5% (v/v)) silane coupling agent (3-aminopropyltriethoxysilane (3-APTS)) having organic functional group was conducted. After surface treatment, polyphenylene sulfide (PPS) composite samples containing surface treated volcanic ash particles at two concentrations (10 and 15 wt%) were manufactured by twin screw extruder and injection molding machine. This study investigated the effect of surface modification on mechanical properties of two different concentrated volcanic ash/PPS composites. All tests were performed using a Shimadzu AG-X Universal Tester. Tensile and three point bending tests were carried out at a crosshead speed of 1 mm/min and 2 mm/min according to ISO 527-2 and ASTM D790 standards, respectively. During the experiments, the relation between the mechanical properties and surface treatment concentrations of silane agent on volcanic ash/PPS composites was determined as a function of tensile strength and modulus, flexural strength and modulus. Moreover, fracture surface morphologies of volcanic ash/PPS composite samples were observed by using a scanning electron microscopy.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 495-497
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Roughness of Milled Sheet Molding Compound Composites
Autorzy:
Uysal, A.
Altan, M.
Powiązania:
https://bibliotekanauki.pl/articles/1192497.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
Sheet molding compounds (SMC) are alternative materials in manufacturing of structural components, automotive components and electrical resistant parts, due to their high strength, light weight, easy formation and low material cost. However, machining is demanded as a secondary process for achieving the final shape of the part for assembly. During machining of SMC composites, some problems are faced because of the different machining characteristics of polymer matrix and fiber reinforcement. In this study, commercial SMC composite including 25 wt.% polyester, 30 wt.% glass fiber and 45 wt.% calcium carbonate, was milled under different depth of cut, feed and cutting speed. Taguchi experimental design was used to determine the effectiveness of the parameters. After the slots were milled, the roughness of the machined surfaces was investigated and it was found that lower feed, higher depth of cut were more effective than cutting speed in decreasing surface roughness.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1218-1220
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Volcanic Ash Concentration Effect on Mechanical Properties of Poly(Vinyl Chloride) Composites
Autorzy:
Bora, M.
Powiązania:
https://bibliotekanauki.pl/articles/1194102.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
Various concentrations of inorganic particles of volcanic ashes (VA) were added using twin screw extruder and the injection molding machines to the poly(vinyl chloride) (PVC) to fabricate PVC/VA composites. The effect of volcanic ash particles weight content (0, 5, 10, 15, 20, and 25 wt.%) on the mechanical properties of PVC/VA composites was investigated by tensile and flexural tests. Tensile and flexural properties of composite samples were determined under three different temperatures (-10°C, 20°C and 50°C) by using Shimadzu AG-X test machine, having a load cell of 10 kN and equipped with the thermostatic chamber with controlled temperature environment. As a result, mechanical properties of PVC/VA composites showed that VA can be used as a filler material in PVC composites. Results of both, the tensile and the flexural tests showed that at -10°C and at 20°C, flexural and tensile strength values of 25 wt.% PVC/VA composites have decreased by nearly 15%, compared to value of pure PVC. Even though VA particles decrease the flexural and tensile strength of PVC, VA can be used as a filler material in PVC matrix. Morphologies of the fracture surfaces and the dispersion of VA particles were observed by using scanning electron microscopy (SEM).
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1004-1006
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Volcanic Ash Reinforcement Concentration Effect on Thermal Properties of Polyvinyl Chloride Composites
Autorzy:
Fidan, S.
Powiązania:
https://bibliotekanauki.pl/articles/1194145.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
This paper reports the results of experiments evaluating the thermal properties of volcanic ash (VA) reinforced polyvinyl chloride (PVC) composites with various concentrations. PVC matrix composites reinforced with various VA concentrations (5, 10, 15, 20 and 25 wt.%) were manufactured by using a twin screw micro-compounder and an injection molding machine. Thermogravimetric analysis (TGA) was used to monitor the changes in physical and chemical properties of VA reinforced PVC composites as a function of increasing temperature and time. Measuring the changes in weight of the material as a result of heating gives valuable information about thermal degradation of VA reinforced PVC composites. Therefore by using TGA, effect of volcanic ash concentration on thermal stability and degradation extent of PVC matrix composite was evaluated
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1002-1003
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation and Characterization of Urea/Formaldehyde/Rosa Canina sp. Seeds Composites
Autorzy:
Gürses, A.
Karagöz, S.
Mindivan, F.
Güneş, K.
Doğar, Ç.
Aktürk, S.
Powiązania:
https://bibliotekanauki.pl/articles/1194519.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
Urea-formaldehyde (UF) resin which is one of the most important wood adhesives is a polymeric condensation product of the chemical reaction of formaldehyde with urea, and considered as the most important type of adhesive resins for the production of particleboards. The present study is aimed to preparation and characterization of urea/formaldehyde/Rosa Canina sp. seeds - and urea/formaldehyde/ Rosa Canina sp. seeds/organo clay composites and also to determine the utility as an alternative and low cost material to manufacture particleboard. The synthesis of various composites was carried out using fresh Rosa Canina sp. seeds, typical agricultural waste, in its changing ratios from 7.7 to 83.3 wt%. Also, some of the composite mixtures were prepared by adding organo clay (0.17-3.3 wt%) in a constant ratio of 1/1 wt of urea and formaldehyde. The structural and mechanical characterization of samples was performed by X-ray diffraction, Fourier transform infrared spectra, high resolution transmission electron microscopy images and measurements of Shore D and scratch hardness. The analysis results conclude that organo clay platelets dispersed as simultaneously intercalated and exfoliated in resin matrix and also the increased organo clay ratio led to increase in the hardness values of samples.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 368-373
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Roughness in Drilling of Electrically Conductive Polyamide
Autorzy:
Uysal, A.
Altan, E.
Powiązania:
https://bibliotekanauki.pl/articles/1398695.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
In this study, drilling of unreinforced polyamide and carbon black reinforced electrically conductive polyamide was performed with drill tools having different drill point angle at different cutting speeds and feeds. The surface roughness of drilled holes was measured and the chip forms were investigated. The experimental studies were designed by utilizing Taguchi L₉ orthogonal series in order to obtain optimum drilling parameters and analysis of variance (ANOVA) statistical method was used to specify the effects of the process parameters on the surface roughness.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 442-444
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solid Particle Erosion Behavior of Volcanic Ash/PVC Composites
Autorzy:
Çoban, O.
Powiązania:
https://bibliotekanauki.pl/articles/1401230.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
In this study an attempt has been made to evaluate the solid particle erosion behavior of PVC based composites with various volcanic ash (VA) concentrations (5, 10, 15, 20 and 25 wt.%). VA/PVC composites were prepared by using a twin screw micro-compounder and an injection molding machine. The erosion testing of VA/PVC composites was performed in accordance with the ASTM G76-95 standard at 6 different particle impingement angles (15°, 30°, 45°, 60°, 75° and 90°) and under the pressure of 1.5 bar by using abrasive Al₂O₃ particles. The morphology of eroded surfaces was examined by using a scanning electron microscope (SEM), and possible wear mechanisms were discussed. Moreover, the surface roughness values of eroded VA/PVC composites were analyzed by using a non-contact laser optical profilometer. 3D surface topographies were also examined.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 998-1001
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Buckling Behaviour of Short Cylindrical Functionally Gradient Polymeric Materials
Autorzy:
Uysal, M.
Kremzer, M.
Powiązania:
https://bibliotekanauki.pl/articles/1194008.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
In the present study, the buckling behavior of short cylindrical Functionally Gradient Polymeric Materials (FGPMs) was studied. Besides, the structure and graphite distributions of the FGPMs were investigated. Epoxy resin was used as polymeric matrix component and two types of graphite powder materials, PAM96/98 and PV60/65, were selected. Graphite powders were added in quantities of 3, 6, 9, and 12% of volume respectively. Short cylindrical FGPMs samples were manufactured by centrifugal casting method. The structure and graphite distribution of FGPMs samples were investigated by light microscope and image processing program. It was observed that the graphite distribution had varied between the inner and outer diameter. The buckling behavior of short cylindrical FGPMs was analyzed by finite element analysis. The buckling loads of FGPMs samples were predicted.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1355-1357
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Silane as Coupling Agent on Dynamic Mechanical Properties of Volcanic Ash Filled PPS Composites
Autorzy:
Çoban, O.
Bora, M.
Kutluk, T.
Fidan, S.
Sınmazçelik, T.
Powiązania:
https://bibliotekanauki.pl/articles/1398706.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
Opis:
The purpose of this study is to investigate the effect of surface modification of volcanic ash particles on dynamic mechanical properties of volcanic ash filled polyphenylene sulfide (PPS) composites. For this purpose volcanic ash particles were modified with 1, 3, 5 vol.% of 3-aminopropyltriethoxysilane (3-APTS) which has an organic functional group. All volcanic ash/PPS composite samples were prepared by using DSM Xplore 15 ml twin screw microcompounder and DSM Xplore 12 ml injection molding machines. The content of volcanic ash in composite samples was varied as 10 and 15 wt%. Volcanic ash filler dispersion and adhesion between volcanic ash particles and PPS matrix were examined by scanning electron microscopy. Dynamic mechanical properties such as storage modulus (E') and glass transition temperature (T_{g}) were investigated by TA Instruments Q800 dynamic mechanical analyzer. During the experiments, the relation between silane coupling and dynamic mechanical properties was evaluated.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 492-494
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of UHWPE-TiO₂ Composites Produced by Gelation/Crystallization Method
Autorzy:
Celebi Efe, G.
Bindal, C.
Ucisik, A.
Powiązania:
https://bibliotekanauki.pl/articles/1031264.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
81.05.Lg
Opis:
In this study, ultra-high molecular weight polyethylene (UHMWPE) - TiO₂ composites reinforced with TiO₂ particles with weight ratios of 0.5, 1 and 2% were produced by gelation/crystallization method in decalin+antioxidant solution of UHMWPE at 150°C, for 40 min by using magnetic stirrer. The gel mixture was cooled in an aluminum tray embedded in iced water under ambient conditions and dried in an oven at 130°C for 90 min to remove any residual trace of decalin. Distribution and elemental analyses of TiO₂ particles in polymer matrix was examined by SEM-EDS. Crystallization behavior was investigated by differential scanning calorimetry (DSC). Based on the results, TiO₂ particles in the UHMWPE have accelerated the crystallization, acting as nucleating agents, with increment from 56% for UHMWPE to 63.5% for UHMWPE-2 wt% TiO₂. The present bond types in composites were analyzed by Raman spectroscopy and the results are in good agreement with literature. Uniaxial tensile tests were performed to determine Young's modulus of UHMWPE-TiO₂ composites. It was found that Young's modulus of UHMWPE was increased from 52 MPa to 800 MPa with the addition of TiO₂ particles.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 767-769
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taguchi Approach to Tribological Behaviour of Chopped Carbon Fiber-Reinforced Epoxy Composite Materials
Autorzy:
Ozsoy, N.
Ozsoy, M.
Mimaroglu, A.
Powiązania:
https://bibliotekanauki.pl/articles/1047489.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
07.05.Fb
Opis:
Chopped carbon fiber-reinforced epoxy composites were fabricated and tested for tribological behaviour. Wear behaviour of composites was studied using pin-on-disc wear tester device. The design of experiment, using Taguchi method, was employed to analyse the results. Signal to noise ratio and analysis of variance (ANOVA) were used to determine the influence of parameters on the wear rate and coefficient of friction.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 846-848
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Mechanical Behaviour of Carbon and Glass Fiber Reinforced Epoxy Composites
Autorzy:
Ozsoy, N.
Mimaroğlu, A.
Ozsoy, M.
Powiązania:
https://bibliotekanauki.pl/articles/1401276.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
81.70.Bt
Opis:
An experimental study has been carried out to investigate tensile and bending properties of carbon fiber (CFRE) and glass fiber-reinforced (GFRE) epoxy composites. Three different fiber orientations were applied, 0°, 90° and [0°, 90°]. The laminates were obtained by manual lay-up process. The samples were evaluated by tensile tests according to the ASTM D3039 and bending tests according to the ASTM D790. Experimental results showed that maximum tensile strengths were observed at 0° fiber direction for the both CFRE and GFRE composites. With respect to their tension properties, the CFRE samples had better performance than the GFRE samples, except for the 90° orientation. Three point bending tests proved that in all orientations CFRE composites had better performance, compared to GFRE composites.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1032-1034
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical properties of chopped carbon fiber reinforced epoxy composites
Autorzy:
Ozsoy, N
Ozsoy, M.
Mimaroglu, A.
Powiązania:
https://bibliotekanauki.pl/articles/1070471.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
81.70.Bt
Opis:
An experimental study has been carried out to investigate tensile, bending, impact and hardness properties of chopped carbon fiber reinforced epoxy composites. Four different weight fractions (0%, 6%, 8%, 10%) were added as reinforcement to composites. The samples were manufactured by using a special designed mold. Tests were carried out according to the ASTM standards. Results of the tests have shown that hardness increases with the increasing amount of carbon fiber in composites. Tensile, bending and impact performances have increased up to 8% of carbon fiber in the composite and then started to decrease.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 297-299
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of CBC and G-POSS on Tribological Behaviour of Polyamide 6 and Short Glass Fiber Reinforced Polyamide 6 Composites
Autorzy:
Gul, O.
Yilmaz, S.
Yilmaz, T.
Powiązania:
https://bibliotekanauki.pl/articles/1194067.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.40.Pq
81.05.Qk
Opis:
In this study, effect of glycidylisobutyl oligomeric silsesquioxane (G-POSS) and 1.1'-carbonyl-bis-caprolactam (CBC) (1 wt.%) on the friction and wear performance of polyamide 6 (PA6) and short glass fiber (SGF) (10 and 20 wt.%) reinforced PA6 composites were investigated. Adhesive wear tests were carried out by using a tribometer in block-on-ring configuration (ASTM G77), in sliding conditions, without lubricants and in air. Tests were carried out at sliding speed of 1.6 m/s (511 rpm) and applied load values of 25, 50 and 75 N. Wear rate was calculated using weight loss per unit sliding distance. The results showed that, the friction force increases with the increasing load. It was found that the wear resistance of PA6 improved considerably after doping with CBC.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1121-1123
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł

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