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Characterization of Nanocomposite Membrane Based Bacterial Cellulose Made of Pineapple Waste Reinforced by Graphite Nanoplatelets

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Journal of Renewable Materials 2022年第9期10卷 2465-2475页

作者： Heru Suryanto Bili Darnanto Susilo Jibril Maulana Aminnudin Uun Yanuhar Surjani Wonorahardjo husni wahyu wijaya Abu Saad Ansari Center of Excellence for Cellulose Composite(CECCom) Department of Mechanical EngineeringUniversitas Negeri MalangMalang65145Indonesia Centre of Advanced Material for Renewable Energy(CAMRY) Universitas Negeri MalangMalang65145Indonesia Master Program of Mechanical Engineering Faculty of EngineeringUniversitas Negeri MalangMalang65145Indonesia Department of Aquatic Resources Management Faculty of Fisheries and Marine SciencesBrawijaya UniversityMalang65145Indonesia Department of Chemistry Faculty of Mathematics and Natural SciencesUniversitas Negeri MalangMalang65145Indonesia Department of Materials Science&Engineering Incheon National UniversityIncheon464-742South Korea

Waste is the main problem for the *** waste for various useful applications has a benefit for the *** work has been studied for handling pineapple peel waste to make composite film bacterial cellulose nanocomposite membrane(BCNM)with addition graphite nanoplatelet(GNP).The concentration of GNP in the membrane influence the membrane *** bacterial cellulose(BC)pellicle was synthesized by using media from pineapple peel waste *** pellicle is cleaned with water and NaOH solution to be free from *** is synthesized through the mechanical disintegration *** results of disintegration using high pressure homogenizer at 150 bar and five ***/GNP is synthesized with varying addition of GNP of 2.5,5.0,10 and 100 wt%of dry bacterial nanocellulose(BNC).The BC and GNP solution were dried in an oven for 14 h at 80℃.BCNM morphology was observed using *** is dispersed and distributed in the BC matrix as *** analysis shows many peaks of BNC less pronounced with increasing of *** higher concentration of GNP,the rougher of *** optimum tensile strength of BCNM was achieved after addition GNP of 2.5 wt%.

关键词： Bacterial nanocellulose graphite nanoplatelet membrane nanocomposite pineapple waste

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Nanofibrillation of Bacterial Cellulose Using High-Pressure Homogenization and Its Films Characteristics

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Journal of Renewable Materials 2021年第10期9卷 1717-1728页

作者： Heru Suryanto Muhamad Muhajir Bili Darnanto Susilo Yanuar Rohmat Aji Pradana husni wahyu wijaya Abu Saad Ansari Uun Yanuhar Department of Mechanical Engineering Faculty of EngineeringUniversitas Negeri MalangMalang65145Indonesia Centre of Advanced Materials for Renewable Energy Universitas Negeri MalangMalang65145Indonesia Department of Chemistry Faculty of Mathematics and Natural SciencesUniversitas Negeri MalangMalang65145Indonesia Department of Chemical Engineering Hongik UniversitySeoul04066Korea Biotechnology and Waters Sciences Laboratory Faculty of Fisheries and Marine ScienceUniversity of BrawijayaMalang65145Indonesia

The microstructure of bacterial cellulose nanofibers(BCNs)film affects its *** of several means to engineer the microstructure is by changing the BCNs size and fiber distribution through a high-pressure homogenizer(HPH)*** research aimed to find out the effects of repetition cycles on HPH process towards BCNs film *** prepare BCNs films,a pellicle from the fermentation of pineapple peels waste with Acetobacter xylinum(***)was extracted,followed by crushing the pellicle with a high-speed blender,thereafter,homogenized using HPH at 150 bar pressure with variations of 5,10,15,and 20 *** BCNs films were then formed through the casting process and drying in the oven at 60°C for 8 h followed by structural,morphological,and optical properties investigation using X-ray diffraction(XRD),scanning electron microscopy(SEM)and Fourier transform infrared(FTIR)spectrometer along with BCNs films porosity,tensile and roughness *** research showed that the effect of HPH cycle on BCNs resulted in the highest film tensile strength by 109.15 MPa with the lowest surface roughness(Ra)of 0.93±0.10μm at 10 *** HPH process is effective in controlling BCNs film porosity *** HPH cycles influence the crystalline index and crystallite size,slightly.

关键词： Bacterial cellulose cellulose film high-pressure homogenizer nanofibers pineapple peels

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