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    Tytuł:
    Thermal analysis of epoxy based coconut fiber-almond shell particle reinforced biocomposites
    Analiza cieplna biokompozytów epoksydowych umacnianych łuskami migdałowca i włóknami kokosowymi
    Autorzy:
    Chaudhary, A. K.
    Gope, P. C.
    Singh, V. K.
    Suman, A. R.
    Verma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/175615.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    biocomposites
    almond shell
    coconut fiber
    microstructure
    thermal analysis
    biokompozyt
    łuski migdałowca
    włókno kokosowe
    mikrostruktura
    analiza cieplna
    Opis:
    In this research, the suitability of almond shell and coconut fiber as a renewable agricultural residue for manufacturing of biocomposite to be used as a replacement of wood was investigated. The use of agriculture waste as a reinforcement in composite may result in several environmental and socioeconomic benefits. Biocomposite containing different weight percentage of almond shell particle (10, 20, 30, 40 and 50 wt%) and coconut fiber (2, 4 and 6 wt%) mixed with 20 wt% of almond shell particles were made using epoxy resin and 0.5 wt% of Tricresyl Phosphate. Thermal stability test and morphology (SEM) of the biocomposite were determined.
    W artykule przedstawiono analizę wyników badań trwałości materiałów biokompozytowych umacnianych łuskami migdałowca i włóknami kokosowymi, używanych jako zamienniki drewna. Zastosowanie odpadów rolniczych jako elementów umacniających materiały kompozytowe pozytywnie oddziałuje zarówno na środowisko naturalne, jak i kryteria ekonomiczne ich producentów. W badaniach stosowano materiały biokompozytowe o zawartości cząstek łusek migdałowca od 10 do 50% mas. oraz włókien kokosowych 2, 4 i 6% mas. Osnową wytworzonych kompozytów była żywica epoksydowa z dodatkiem fosforanu trikrezylowego 0,5% mas. Wykonano badania stabilności cieplnej wytworzonych biokompozytów oraz ich mikrostruktury przy zastosowaniu mikroskopu skaningowego SEM.
    Źródło:
    Advances in Manufacturing Science and Technology; 2014, 38, 2; 37-50
    0137-4478
    Pojawia się w:
    Advances in Manufacturing Science and Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The use of oak chips and coconut fiber as biofilter media to remove vocs in rendering process
    Autorzy:
    Tymczyna, Leszek
    Chmielowiec-Korzeniowska, Anna
    Paluszak, Zbigniew
    Dobrowolska, Magadalena
    Banach, Marcin
    Pulit, Jolanta
    Powiązania:
    https://bibliotekanauki.pl/articles/1039479.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    rendering plants
    biofiltration
    oak bark
    coconut fiber
    Opis:
    The study evaluated the effectiveness of air biofiltration in rendering plants. The biofilter material comprised compost soil (40%) and peat (40%) mixed up with coconut fiber (medium A) and oak bark (medium B). During biofiltration average VOCs reduction reached 88.4% for medium A and 89.7% for medium B. A positive relationship of aldehyde reduction from material humidity (r = 0.502; α<0.05) was also noted. Other biomaterial parameters did not affect the treatment efficiency.
    Źródło:
    Acta Biochimica Polonica; 2013, 60, 4; 747-751
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Natural Fibers on the Fresh and Hardened Properties of Self-Compacting Concrete (SCC)
    Autorzy:
    Tan, Vicente Miguel A.
    Yambao, Mon Emilbert F.
    Bravo, Rodrigo Rafael
    Familara, Joanne A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1076564.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Coconut Fiber
    Filling Ability
    Passing ability
    Rice Straw Fiber
    Segregation Resistance
    Self-Compacting Concrete
    Opis:
    The main purpose of the study is to explore the effect of the plant fibers having different volume fraction on the fresh properties of the mix design of SCC such as filling ability, passing ability and segregation resistance as well as its influence on the compressive strength of the hardened SCC. The study started by conducting preliminary test on the aggregates needed in the construction of SCC. The aggregates were mixed together until uniform consistency was attained. Different volume fractions of CN and RS fibers were added on the mix design and molded in a cylindrical molder. The concrete were dried for 48 hours then placed in curing tank. Filling ability were tested by means of slump flow and T500 test. Passing ability were tested using J-ring while segregation resistance were tested using V-funnel and T5min. Hardened SCC with plant fibers were tested for its compressive strength. Based from the collected data, the filling ability were significantly affected by decreasing the slump flow of self-compacting concrete while increasing the time of SCC to spread to a diameter of 500 mm (T500). Furthermore, the passing ability and segregation resistance of SCC increases upon adding various volume fractions of CN and RS fibers. Statistical analysis further proves that there is significant difference between the normal SCC and the SCC with different percentages of CN and RS fibers. In addition, most favorable compressive strength were found when 0.05% CN fiber and 0.10% RS fiber were added to SCC after 7 and 28 curing days.
    Źródło:
    World Scientific News; 2019, 115; 229-241
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of different substrates on yield and fruit quality of tomato grown in soilless culture
    Autorzy:
    Kılıç, P.
    Erdal, I.
    Aktas, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/101017.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    soilless culture
    Solanum lycopersicum
    rock wool
    perlite
    coconut fiber
    yield
    quality
    Opis:
    Purpose of this study was to examine plant growth, yield, and fruit quality responses of tomato cultivar "Delgado F1” grown in different soilless culture substrates, such as perlite, rock wool, and coconut fiber, under greenhouse conditions. Horizontal bag culture was used as a growing system. The yield, plant biomass, leaf, height, width, fruit taste, aroma, acidity, water-soluble solids content (TSS) and lycopene content were measured. According to the results, the best fruit quality was determined for the coconut fiber media, while the highest total yield was obtained for the perlite media.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2018, II/1; 249-261
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Atomic force microscopy investigation of electron beam (EB) irradiated composites based on biodegradable polymers and coconut fiber*
    Autorzy:
    Kodama, Y.
    Oishi, A.
    Nagasawa, N.
    Nakayama, K.
    Tamada, M.
    Machado, L. D. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/147470.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    atomic force microscopy (AFM)
    coconut fiber
    electron beam (EB) radiation
    force modulation microscopy (FMM)
    poly(ε-caprolactone) (PCL)
    poly(L-lactic acid) (PLLA)
    scanning electron microscopy (SEM)
    Opis:
    In this study, the addition of natural fibers to biodegradable PCL, PLLA blend and the effect of ionizing radiation on the surface of composites were investigated by force modulation microscopy (FMM), atomic force microscopy (AFM) and scanning electron microscopy (SEM). Hot pressed sheets were prepared using pellets of twin extruded PCL:PLLA 20:80 (w:w) blend containing 5% or 10% weight concentration of coconut fiber. In this study coconut fibers non treated chemically and acetylated ones were used. Irradiation was performed using an electron beam (EB) accelerator and an absorbed dose of 100 kGy. FMM images acquisition was obtained using a silicon cantilever, intermittent contact mode (tapping mode). Also, AFM images were obtained using tapping mode but J scanner. By FMM, it was possible to observe regions with different elasticity indicating fiber presence under the surface of the composite. Furthermore, it appears that the spherical structures size decreased on composites. This probably was induced by ionizing radiation.
    Źródło:
    Nukleonika; 2013, 58, 4; 459-468
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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