scholarly journals Konduktivitas Listrik Poly(Lactic Acid) dengan Variasi Bahan Isian Karbon: Review

2021 ◽  
Vol 5 (1) ◽  
pp. 59
Author(s):  
Gabrella Efendy ◽  
Indah Dwi Handayani ◽  
N Fauziatul Husni ◽  
Siti Habibah ◽  
Mujtahid Kaavessina
Keyword(s):  
Lactic Acid ◽  
Carbon Black ◽  
Polymer Nanocomposites ◽  
Conductive Polymer ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Carbon Nano Tube

<p><em>Conductive Polymer Nanocomposites</em> (CPC) merupakan material yang banyak digunakan sebagai sensor, sel fotovoltaik, kapasitor, dioda, dan perangkat energi yang sangat mudah meregang. CPC memiliki beberapa sifat unggul, diantaranya konduktivitas elektrik yang tinggi, ringan, tahan korosi, dan memiliki karakteristik mekanis yang bagus. Konduktivitas elektrik pada polimer diperoleh dan diatur dengan menambahkan bahan isian berbasis karbon seperti: <em>Carbon Black</em> (CB), <em>Carbon Nano Tube</em> (CNT), <em>Graphite</em> maupun <em>Graphene</em>. Metode panambahan bahan isian dapat dilakukan dengan<em> </em><em>Melt </em><em>b</em><em>lending</em><em> </em>dan <em>Solvent blending.</em> Metode <em>melt</em> <em>blending</em><em> </em>memiliki beberapa keunggulan, diantaranya mudah, praktis, murah, serta dapat diaplikasikan pada berbagai bahan. Selain itu, metode <em>melt blending</em> termasuk  ramah lingkungan karena tidak ada pelarut organik. Sedangkan kelebihan metode <em>Solvent Blending </em>adalah campuran yang lebih kuat dikarenakan <em>disperse</em> yang terjadi merata dan lebih baik. Pada<em> revie</em><em>w,</em> penulis mengulas tentang sifat elektrik dari CPC berbasis poli asam laktat dan berbagai bahan isian  karbon, yaitu CNT, <em>graphene</em>, dan CB. Hasil studi literatur menunjukkan bahwa konduktivitas elektrik CPC meningkat seiring bertambahnya komposisi bahan isian<em>.</em> Pada metode <em>solvent blending </em>faktor yang berpengaruh adalah komposisi PLA dan <em>filler</em>, suhu operasi, kecepatan pengadukan, waktu pengadukan, dan <em>solvent</em> yang digunakan. Sedangkan metode <em>melt blending</em> faktor yang berpengaruh adalah komposisi PLA dan <em>filler</em>, suhu operasi, kecepatan, dan waktu.</p><p> </p><p>Kata kunci: Poli Asam Laktat, CNT, CB, <em>Graphene</em>, CPC</p>

Conductivity and mechanical properties of carbon black-reinforced poly(lactic acid) (PLA/CB) composites

2021 ◽  
Author(s):  
Jipeng Guo ◽  
Chi-Hui Tsou ◽  
Yongqi Yu ◽  
Chin-San Wu ◽  
Xuemei Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Carbon Black ◽  
Poly Lactic Acid

Mechanical, Thermal, and Morphological Properties of Thermoplastic Starch/Poly(lactic acid/Poly(butylene adipate-co-terephthalate) Blends

2014 ◽  
Vol 970 ◽  
pp. 312-316
Author(s):  
Sujaree Tachaphiboonsap ◽  
Kasama Jarukumjorn
Keyword(s):  
Lactic Acid ◽  
Impact Strength ◽  
Interfacial Adhesion ◽  
Tensile Modulus ◽  
Thermoplastic Starch ◽  
Morphological Properties ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Elongation At Break ◽  
Blending Method

Thermoplastic starch (TPS)/poly (lactic acid) (PLA) blend and thermoplastic starch (TPS)/poly (lactic acid) (PLA)/poly (butylene adipate-co-terephthalate) (PBAT) blend were prepared by melt blending method. PLA grafted with maleic anhydride (PLA-g-MA) was used as a compatibilizer to improve the compatibility of the blends. As TPS was incorporated into PLA, elongation at break was increased while tensile strength, tensile modulus, and impact strength were decreased. Tensile properties and impact properties of TPS/PLA blend were improved with adding PLA-g-MA indicating the enhancement of interfacial adhesion between PLA and TPS. With increasing PBAT content, elongation at break and impact strength of TPS/PLA blends were improved. The addition of TPS decreased glass transition temperature (Tg), crystallization temperature (Tc), and melting temperature (Tm) of PLA. Tgand Tcof TPS/PLA blend were decreased by incorporating PLA-g-MA. However, the presence of PBAT reduced Tcof TPS/PLA blend. Thermal properties of TPS/PLA/PBAT blends did not change with increasing PBAT content. SEM micrographs revealed that the compatibilized TPS/PLA blends exhibited finer morphology when compared to the uncompatibilized TPS/PLA blend.

scholarly journals The combined plasticization of jute and tung oil anhydride for jute fiber reinforced poly(lactic acid) composites

2021 ◽  
pp. 096739112110576
Author(s):  
Ying Zhou ◽  
Can Chen ◽  
Lan Xie ◽  
Xiaolang Chen ◽  
Guangqiang Xiao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Physical And Mechanical Properties ◽  
Complex Viscosity ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Sem Images ◽  
Pseudoplastic Fluid ◽  
Tung Oil ◽  
Biodegradable Poly ◽  
The Impact

In this work, novel plasticizing biodegradable poly (lactic acid) (PLA) composites were prepared by melt blending of jute and tung oil anhydride (TOA), and the physical and mechanical properties of PLA/jute/TOA composites were tested and characterized. The impact strength of PLA/jute/TOA composites significantly increases with increasing the content of TOA. The SEM images of fracture surface of PLA/jute/TOA composites become rough after the incorporation of TOA. In addition, TOA changes the crystallization temperature and decomposition process of PLA/jute/TOA composites. With increasing the amount of TOA, the value of storage modulus (E′) of PLA/jute/TOA composites gradually increases. The complex viscosity (η*) values for all samples reduce obviously with increasing the frequency, which means that the pure PLA and PLA/jute/TOA composites is typical pseudoplastic fluid. This is attributed to the formation of crosslinking, which restricts the deformation of the composites.

scholarly journals Modification of poly(lactic) acid by reactive extrusion and its melt blending with acrylonitrile–butadiene–styrene

2020 ◽  
Vol 69 (9) ◽  
pp. 794-803
Author(s):  
Tobias Abt ◽  
Mohammad Reza Kamrani ◽  
Jonathan Cailloux ◽  
Orlando Santana ◽  
Miguel Sánchez‐Soto
Keyword(s):  
Lactic Acid ◽  
Acrylonitrile Butadiene Styrene ◽  
Reactive Extrusion ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Butadiene Styrene

Preparation and Characterization of Micro-Graphite Filled Poly(Lactic Acid) Composites: Part 1 - Rheological and Thermal Properties

2020 ◽  
Vol 981 ◽  
pp. 138-143
Author(s):  
Esa N. Shohih ◽  
Mujtahid Kaavessina ◽  
Henry A. S. Lomi ◽  
Betha P. Pratiwi ◽  
Sperisa Distantina ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Lactic Acid ◽  
Thermal Properties ◽  
Conductive Polymer ◽  
Complex Viscosity ◽  
Poly Lactic Acid ◽  
Homogeneous Distribution ◽  
Mechanical And Thermal Properties ◽  
Blending Method ◽  
Stirring Time

Conductive polymer composites (CPCs) have attracted great attention of researchers due to their enhanced properties such as an adjustable electrical conductivity, good processability, good mechanical and thermal properties, etc. CPCs had many potencies for wider application in electronic devices. Poly (lactic acid) or PLA is one of the interesting polymers used in the developing of these new important materials. PLA properties are comparable to the synthetic petroleum-based polymers such as polyethylene terephthalate (PET), polypropylene (PP), etc. This research focuses on studying the rheological and thermal properties of PLA/micro-graphite as a conductive polymer composite which adjustable its electrical conductivity. In this study, the PLA/micro-graphite was prepared through solvent blending method using chloroform. The micro-graphite composition was varied from 0%, 5%, and 10 % (w/w) with different stirring time (30 and 60 minutes) and then, poured in glass mould. In the melt rheology study, the frequency sweep test showed that the complex viscosity (|η*|) of the bio-composite increased with the micro-graphite loading. The same tendency was also found in thermal property and stability. The melting temperature and thermal degradation were slightly increasing. The crystallinity of PLA was influenced by the presence of micro-graphite. In this solvent blending method, the homogeneous distribution of micro-graphite in the bio-composite required at least 60 minutes (stirred at 650 rpm and 60 °C).

Preparation and characterization of poly(lactic acid)/elastomer blends prepared by melt blending technique

2013 ◽  
Vol 46 (3) ◽  
pp. 253-268 ◽  
Author(s):  
Mujtahid Kaavessina ◽  
Ilias Ali ◽  
Rabeh Elleithy ◽  
Saeed M. Al-Zahrani
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Melt Blending
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