Mechanical Properties and Wettability of Bagasse-reinforced Composite
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摘要
Bagasse fibers were modified using NaOH, KH550, and NaOH/KH550, respectively, and used as reinforcement to prepare bagasse/starch/PVA composite. A combination of Fourier-transform infrared(FTIR) spectroscopy and X-ray diffraction(XRD) was used to investigate the chemical composition. The surface of bagasse fibers and cross-sectional morphologies for bagasse/starch/PVA composite were also characterized by scanning electron microscopy(SEM). Contact angles were measured to test the wettability of the resulting composite. After the chemical treatment with NaOH/KH550, the mechanical properties of the composite can be greatly improved. The contact angle is larger, indicating the variation of surface property from hydrophilicity into hydrophobicity.
Bagasse fibers were modified using NaOH, KH550, and NaOH/KH550, respectively, and used as reinforcement to prepare bagasse/starch/PVA composite. A combination of Fourier-transform infrared(FTIR) spectroscopy and X-ray diffraction(XRD) was used to investigate the chemical composition. The surface of bagasse fibers and cross-sectional morphologies for bagasse/starch/PVA composite were also characterized by scanning electron microscopy(SEM). Contact angles were measured to test the wettability of the resulting composite. After the chemical treatment with NaOH/KH550, the mechanical properties of the composite can be greatly improved. The contact angle is larger, indicating the variation of surface property from hydrophilicity into hydrophobicity.
Bagasse fibers were modified using NaOH, KH550, and NaOH/KH550, respectively, and used as reinforcement to prepare bagasse/starch/PVA composite. A combination of Fourier-transform infrared(FTIR) spectroscopy and X-ray diffraction(XRD) was used to investigate the chemical composition. The surface of bagasse fibers and cross-sectional morphologies for bagasse/starch/PVA composite were also characterized by scanning electron microscopy(SEM). Contact angles were measured to test the wettability of the resulting composite. After the chemical treatment with NaOH/KH550, the mechanical properties of the composite can be greatly improved. The contact angle is larger, indicating the variation of surface property from hydrophilicity into hydrophobicity.
引文
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[3]Vilaseca F,Corrales F,Llop MF,et al.Chemical Treatment for Improving Wettability of Biofibres into Thermoplastic Matrices[J].Composite Interfaces,2005,12(8-9):725-738
[4]Deepa B,Abraham E,Cherian B M,et al.Structure,Morphology and Thermal Characteristics of Banana Nano Fibers Obtained by Steam Explosion[J].Bioresource Technology,2011,102(2):1 988-1 997
[5]Gérardin P,Petri?M,Petrissans M,et al.Evolution of Wood Surface Free Energy After Heat Treatment[J].Polymer Degradation&Stability,2007,92(4):653-657
[6]Sipiao BLS,Paiva RLM,Goulart SAS,et al.Effect of Chemical Modification on Mechanical Behaviour of Polypropylene Reinforced Pineapple Crown Fibers Composites[J].Procedia Engineering,2011,10(1):2 028-2 033
[7]Cao Y,Shibata S,Fukumoto I.Mechanical Properties of Biodegradable Composites Reinforced with Bagasse Fibre Before and After Alkali Treatments[J].Composites Part A Applied Science&Manufacturing,2006,37(3):423-429
[8]Zhou F,Cheng G,Jiang B.Effect of Silane Treatment on Microstructure of Sisal Fibers[J].Applied Surface Science,2014,292(3):806-812
[9]Luz SM,Tio JD,Rocha GJM,et al.Cellulose and Cellulignin from Sugarcane Bagasse Reinforced Polypropylene Composites:Effect of Acetylation on Mechanical and Thermal Properties[J].Composites Part A Applied Science&Manufacturing,2008,39(9):1 362-1 369
[10]Bertoti AR,Luporini S,Esperidi?o MCA.Effects of Acetylation in Vapor Phase and Mercerization on the Properties of Sugarcane Fibers[J].Carbohydrate Polymers,2009,77(1):20-24
[11]Nair KCM,Thomas S,Groeninckx G.Thermal and Dynamic Mechanical Analysis of Polystyrene Composites Reinforced with Short Sisal Fibres[J].Composites Science&Technology,2001,61(16):2 519-2 529
[12]Arrakhiz FZ,Benmoussa K,Bouhfid R,et al.Pine Cone Fiber/Clay Hybrid Composite:Mechanical and Thermal Properties[J].Materials&Design,2013,50(17):376-381
[13]Mantia FPL,Morreale M.Green Composites:A Brief Review[J].Composites Part A Applied Science&Manufacturing,2011,42(6):579-588
[14]Kalia S,Thakur K,Celli A,et al.Surface Modification of Plant Fibers Using Environment Friendly Methods for Their Application in Polymer Composites,Textile Industry and Antimicrobial Activities:A Review[J].Journal of Environmental Chemical Engineering,2013,1(3):97-112
[15]Batalha LAR,Han Q,Jameel H,et al.Production of Fermentable Sugars from Sugarcane Bagasse by Enzymatic Hydrolysis After Autohydrolysis and Mechanical Refining[J].Bioresource Technology,2015,180:97-105
[16]Vilay V,Mariatti M,Taib RM,et al.Effect of Fiber Surface Treatment and Fiber Loading on the Properties of Bagasse Fiber-reinforced Unsaturated Polyester Composites[J].Composites Science&Technology,2008,68(3-4):631-638
[17]Xie Y,Hill C A S,Xiao Z,et al.Silane Coupling Agents Used for Natural Fiber/Polymer Composites:A Review[J].Composites Part AApplied Science&Manufacturing,2010,41(7):806-819
[18]Timakul P,Rattanaprasit W,Aungkavattana P.Improving Compressive Strength of Fly Ash-based Geopolymer Composites by Basalt Fibers Addition[J].Ceramics International,2016,42(5):6 288-6 295
[19]Bormashenko E,Pogreb R,Gene Whyman A,et al.Resonance Cassie-Wenzel Wetting Transition for Horizontally Vibrated Drops Deposited on a Rough Surface[J].Langmuir the Acs Journal of Surfaces&Colloids,2007,23(24):12 217