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All Journal PROSIDING SEMINAR NASIONAL Traksi : Majalah Ilmiah Teknik Mesin Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Majalah Ilmiah MOMENTUM Berdikari: Jurnal Pengabdian Masyarakat Indonesia Jurnal Pengabdian Masyarakat Teknik Jurnal Litbang Provinsi Jawa Tengah Prosiding Seminar Nasional Unimus Jurnal Muria Pengabdian Masyarakat
Dini Cahyandari
Faculty Of Engineering, Muhammadiyah University Semarang, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Health Professions Nursing Public Health Social Sciences

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Journal : PROSIDING SEMINAR NASIONAL

 1 
Effect of Fiber Volume Fraction Of Tensile Strength and Impact Strength biocomposite of Bacterial cellulose-Shellac Dini Cahyandari
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2016: Proceeding of International Seminar on Education Technology (ISET) 2016
Publisher : Universitas Muhammadiyah Semarang

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Abstract. Composites materials usually consist of reinforcement or filler by glass or carbon fiber and the polymer matrixmade of petroleum. These materials are not appropriate because it cant be degradated by environment and need alot ofenergy to produce them. Their waste only can be burned to produce CO2 and CO that caused global warming. Thereforresearch on biocomposites, that more environmental friendly are needed. The objective of this study is to investigated theeffect of volume fraction of fiber on tensile and impact strength of bacterial cellulose fiber reinforced shellac biocomposites. This research is focus on biocomposites of bacterial cellulose and shellac. Bacterial cellulose is cellulose that produced from bacteria Acetobacter Xylinum. Medium that used in this research is tapioka water. Shellac is secretion of lac bug.Bacterial cellulose reinforced shellac biocomposites obtained by blending nata de cassava gel and shellac until become slurry. Volume fraction of bacterial cellulose are 0%, 30%, 50% and 60%. The result showed that the optimal tensile strength of biocomposites is the 60%. highest impact strength is obtained on 50% of bacterialcellulose.
STUDI AWAL POTENSI KOMPOSIT SELULOSE BAKTERIA-POLIANILIN SEBAGAI SUBSTRAT SEL SURYA Dini Cahyandari; Ahmad Solichan; Toni Prasetyo
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2014: PROSIDING SEMINAR NASIONAL HASIL - HASIL PENELITIAN & PENGABDIAN
Publisher : Universitas Muhammadiyah Semarang

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In recent decades, alternative energy from solar cell was investigating by many researcher because it can use as energy substitutes petrol and reduces green house effects. Nowdays, reduces petrol subsidized effect on increased prices of petrol. That is the reason why study on solar cell is important. Dye sensitized solar cell is one of simple technology to use solar energy became electricity. Polyanilin is one of polimer that is electricity conductor. Bacteria cellulose can use as template of polyanilin to polymerisation. SEM and FT-IR investigation shows that composites of bacterial cellulose-polyanilin polimerisation well on bacterial cellulose fiber that sintesized from nata de cassava.
INJECTION MOULDING OF PLA (POLYLACTIC ACID) REINFORCED BACTERIAL CELLULOSE FIBER FROM NATA DE COCO BIOCOMPOSITES Dini Cahyandari
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2017: Proceeding 3rd ISET 2017 | International Seminar on Educational Technology 3rd 2017
Publisher : Universitas Muhammadiyah Semarang

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For many applications, natural fibers provide reinforcement properties at lower cost, lower density, and higher strength and stiffness. The potential advantages of natural fiber have been well documented and are generallybased on environmental friendliness as well as health and safety factors. Most researches concentrate on naturalfibre/nondegradable polymer composites but research reports on natural/biodegradable polymer composites arerather limited. The performance of natural fiber including recycled newspaper fiber, bamboo and hemp fiber,nata de cassava etc, reinforced PLA composites has been investigated.  Determined the mechanical propertiesof the PLA/jute fiber composites and showed that the tensile strength of composites was significantly higherthan that of PLA. But the elongation at break of the composites is still very low as about 2%. Cellulose is abiopolymer whose availability on earth is abundant, known as a major component in plants. But cellulose is alsoan extracellular microbial polymer. Cellulose bacteria is a specific product of primary metabolism. Cellulose issynthesized by bacteria derived from Acetobacter, Rhizobium, Agrobacterium, and Acetobacter generationSarcina. Effectively effective gram is acetobacter xylinum acetic acid bacteria. Cellulose bacteria has beenapplied as nata de coco, wound care products, and tissue engineering. In addition, bacterial cellulose also has thepotential to strengthen the polymer to form a nanocomposite Keywords: Bacterial, Nata De Coco
Co-Authors Aditya, Muhammad Dimas Yoga Afif, Ilham Yustar Afifi, Rizki Fahmi Ahmad Masrukan Ahmad Nuril Anwar Arief Rudy Yulianto Candra Febriawan Drs. Ireng Sigit A Eko Prasetyo Jatmiko Aji Garmadi Garmadi Hanityo Adi Nugroho Hanityo Adi Nugroho Ilham Yustar Afif M. Toni Prasetyo Muh amin Muh. Subri Muhammad Agam Muhammad E ndy Y Muhammad Subri Pujianto, M. Edi Purnomo Purnomo Saefudin, Slamet Safuan Safuan Samsudi Raharjo SAMSUDI RAHARJO Sarfudin, Slamet Syamsiar, Syamsiar TAUFIK ROHMAN, TAUFIK Y, Muhammad E ndy Zein, Husein Aliy Syamsu