Static and Dynamic Mechanical Properties of Cotton/Epoxy Green Composites

Koyuncu, M.; Karahan, M.; Karahan, N.; Shaker, K.; Nawab, Y.

doi:10.5604/12303666.1201139

Artykuł - szczegóły

Tytuł artykułu

Static and Dynamic Mechanical Properties of Cotton/Epoxy Green Composites

Autorzy

Koyuncu M. , Karahan M. , Karahan N. , Shaker K. , Nawab Y.

Treść / Zawartość

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Identyfikatory

DOI

10.5604/12303666.1201139

Warianty tytułu

Statyczne i dynamiczne mechaniczne właściwości bawełniano-epoksydowych “zielonych” kompozytów

Języki publikacji

Abstrakty

A study on the effect of alkaline treatment on the mechanical properties of cotton fabric reinforced epoxy composites is presented in this paper. One hour treatment of cotton fabric was performed using three different concentrations of sodium hydroxide (NaOH) solution. 1% NaOH treated fabric reinforced composites exhibited maximum improvement in tensile strength. It was concluded that the said NaOH concentration improves interfacial adhesion between the cotton fabric and epoxy resin. Moreover the morphology of the fracture surface, evaluated by scanning electron microscopy (SEM), indicated that surface treatment can yield better adhesion between the fabric and matrix, demonstrating the effectiveness of the treatment. The dynamic mechanical analysis (DMA) results revealed that alkali treated (1% and 3% NaOH) fabric composites exhibit higher storage moduli and glass transition temperature (Tg) values as compared to the untreated fabric composites. However, for all the composite specimens, the storage modulus decreased with increasing temperature (25 - 100 °C). Tg values of 50.9, 56.7, 52.8 and 37.7 °C were recorded for the untreated and (1%, 3% and 5%) treated composites, respectively. The tan δ values decreased for all the composites with increasing temperature, indicating enhanced interactions between the polymer matrix and fabric reinforcement.

Badano wpływ obróbki alkalicznej na mechaniczne właściwości tkanin bawełnianych wzmacniających kompozyty epoksydowe. Stosowano jednogodzinną obróbkę tkanin bawełnianych przy stosowaniu trzech różnych stężeń NaOH. Stwierdzono, że tkaniny poddane działaniu 1% NaOH wykazują najlepsze właściwości biorąc pod uwagę wytrzymałość na rozciąganie. Stwierdzono, że obróbka alkaliczna polepsza międzyfazową adhezję pomiędzy bawełnianą tkaniną i żywicą epoksydową. Oprócz tego stwierdzono, badając morfologię przełomów za pomocą SEM, że obróbka powierzchniowa pozwala na uzyskanie lepszej adhezji pomiędzy tkaniną a matrycą epoksydową. Stwierdzono również zmiany składowej rzeczywistej modułu zespolonego oraz wartości temperatury i przemiany szklistej. Ze wzrostem temperatury zmienia się również tan δ dla wszystkich kompozytów potwierdzając polepszającą się interakcję pomiędzy matrycą polimerową i włóknistym wzmocnieniem.

Słowa kluczowe

natural fibres adhesion alkaline composites wettability glass transition temperature

włókna naturalne obróbka alkaliczna kompozyty epoksydowe zwilżalność temperatura zeszklenia

Wydawca

Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny

Czasopismo

Fibres & Textiles in Eastern Europe

Rocznik

2016

Tom

Vol. 24, no. 4 (118)

Strony

105--111

Opis fizyczny

Bibliogr. 31 poz., rys., tab.

Twórcy

autor

Koyuncu M.

Department of Textile, Van Vocational of Higher School, Yuzuncu Yil University, Van, Turkey

autor

Karahan M.

mkarahan@uludag.edu.tr

Vocational School of Technical Sciences, University of Uludag, Bursa, Turkey

autor

Karahan N.

Vocational School of Technical Sciences, University of Uludag, Bursa, Turkey

autor

Shaker K.

Textile Composite Materials Research Group, Faculty of Engineering and Technology, National Textile University, Faisalabad, Pakistan

autor

Nawab Y.

Textile Composite Materials Research Group, Faculty of Engineering and Technology, National Textile University, Faisalabad, Pakistan

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.

Typ dokumentu

Bibliografia

Identyfikator YADDA

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