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RISS 인기검색어
- 검색키워드
- 저자 : Suchart Siengchin (검색결과 3 건)
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Senthilkumar Boominathan,Indran Suyambulingam,Sunesh Narayanaperumal,Divya Divakaran,P. Senthamaraikannan,Suchart Siengchin 한국고분자학회 2023 Macromolecular Research Vol.31 No.11
Plasticizers are frequently employed as additives due to the poor strength of polymers. Many plasticizers are currently available in liquid form and as compounds derived from fossil fuels. These materials are not appropriate for the environment, which may have negative consequences on humans and other resources. Comparing liquid plasticizers to solid plasticizers, there exists an uncountable number of liquid plasticizers. Accordingly, our research based on the extraction of plasticizer from plant-based sources. The leaves of Pandanum tectorius are utilized for this purpose, and the plasticizer is extracted from the leaves via chemical processes such as amination, alkalization, and surface catalysis. To comprehend the properties of the plasticizer, Fourier Transform Infrared Spectroscopy, Ultraviolet Spectroscopy, and X-Ray diffraction analyses were performed. Scanning electron microscopy and energy dispersive spectrum analysis are used to determine the surface morphology of the isolated plasticizer. Thermogravimetric and differential thermogram analysis curves are used to examine the heat degradation behavior of the plasticizer. To examine the plasticizing effect of the plasticizer, a bio polymer polylactic acid is utilized and its mechanical properties are investigated. With a 5% loading of plasticizer, the tensile modulus and Young's modulus of composite films decreased, while the elongation break percent (70.46%) increased. The isolated plasticizer was soluble in water, and organic solvents, and had a molecular weight of 444.72. Plasticizer's glass transition temperature was also investigated and determined to be 73.46 °C. The plasticizer is reinforced with PLA to check the plasticizing effect and the reinforcement interface is also discussed using scanning electron microscope analysis.
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Joseph Selvi Binoj,Natarajan Manikandan,Bright Brailson Mansingh,Vadivel Nayanar Anbazhagan,Govindarajan Bharathiraja,Suchart Siengchin,Mavinkere Rangappa Sanjay,Suyambulingam Indran 한국섬유공학회 2022 Fibers and polymers Vol.23 No.11
Owing to the exceptional characteristics such as sustainability, biodegradability and environment friendlycharacteristics natural fibers are a dominant force in a variety of composite sectors. Among the many fruit fibers, Areca fruithusk fiber (AFHF) stands out and has been discovered in considerable quantities being rejected by tobacco processingenterprises. The investigation of AFHFs, helps to utilize the wealth out of iste in an eco-friendly nature for reinforcement inpolymer composites. In light of this, the current work deals with AFHFs collected from agricultural enterprises and processedas raw fibers, which were further combined with unsaturated polyester resin to create a natural polymer composite material. Additionally, using Taguchi's design technique, an orthogonal array is constructed by including process parameters and theirstages when conducting testing. The influence of various fiber widths on various gauge distances has been discussed, as wellas the optimal width and span for defining the possible tensile strength using Taguchi's single response analysis. Additionally,the mechanical assets of manufactured natural fiber composites were evaluated using ASTM criteria to perceive whether itcan be employed as a substitute reinforcement in polymer composite products.
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S. Gokulkumar,Indran Suyambulingam,Divya Divakaran,G. Suganya Priyadharshini,M. Aravindh,Jenish Iyyadurai,M. Sanju Edwards,Suchart Siengchin 한국고분자학회 2023 Macromolecular Research Vol.31 No.12
Researchers are focusing their efforts on developing high-performance bio-based composites due to increased interest in the production of natural fiber-based polymer composites utilizing novel cellulosic fillers. The primary goal of this study is to comprehend physicochemical and morphological characteristics, crystallinity, and thermal behavior of Lantana aculeata leaf cellulose (LALC) fillers. The extracted cellulose has some unique properties, such as excellent mechanical properties, lower density, bio-compatibility, heat resistance, and processability. Using X-ray diffraction, crystallinity index and size of Lantana aculeata leaf cellulose were calculated to be 73.7 and 7.42 nm, respectively. Furthermore, the morphology of the extracted LALC filler was examined using Scanning Electron Microscopy (SEM) and ImageJ software, and its average size was determined to be 69.21 nm. In addition, Fourier-transform infrared spectroscopy (FTIR) revealed that the extracted LALC contained no other non-cellulosic components due to alkali treatment, as they isolate cellulose and minimize the presence of non-cellulosic components. Furthermore, atomic force microscopy (AFM) revealed that the surface roughness of the cellulose is less than 4.630 nm, paving the way for an agricultural residue to be transformed into a desirable cellulosic filler material for developing polymeric composites. It can also withstand temperatures of maximum up to 247.23 °C, making it a viable substitute for more traditional sources. It can be used in a variety of polymer composite applications, including packaging materials, automotive parts, and building materials.
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