Acid Composites : Effect of Filler Content and Coupling Treatment Thermal and Mechanical Properties of Wood Flour / Talc-filled Polylactic

Wood flour (WF) and talc-filled polylactic acid (PLA) composites are prepared by melt compounding and injection molding. The effects of filler loading and silane treatment, the thermal and mechanical properties of the composites are studied. Loading of WF and WF/talc mixture into neat PLA results in a small decrease in the glass transition and crystalline temperatures of the composites. The use of WF, talc and silane in the composites causes successively larger decreased in the composite crystallinity. The addition of talc and silane to PLA/WF composites improved the tensile modulus. The tensile strength of the composites decreases slightly with the addition of talc, but it considerably improves with the use of 1wt% silane. Morphological analysis shows improved interfacial bonding with silane treatment for the composites.

[1]  Manjusri Misra,et al.  Chopped glass and recycled newspaper as reinforcement fibers in injection molded poly(lactic acid) (PLA) composites: A comparative study , 2006 .

[2]  Long Yu,et al.  Polymer blends and composites from renewable resources , 2006 .

[3]  Manjusri Misra,et al.  “Green” composites from recycled cellulose and poly(lactic acid): Physico-mechanical and morphological properties evaluation , 2005 .

[4]  M. Shibata,et al.  Biodegradation of aliphatic polyester composites reinforced by abaca fiber , 2004 .

[5]  Han-Seung Yang,et al.  Creep behavior and manufacturing parameters of wood flour filled polypropylene composites , 2004 .

[6]  S. Ray,et al.  New Polylactide/Layered Silicate Nanocomposites, 6 , 2003 .

[7]  X. Colom,et al.  Effects of different treatments on the interface of HDPE/lignocellulosic fiber composites , 2003 .

[8]  S. Lim,et al.  Comparison in glass transition and enthalpy relaxation between native and gelatinized rice starches , 2002 .

[9]  M. Kellomäki,et al.  Effect of filler content on mechanical and dynamic mechanical properties of particulate biphasic calcium phosphate--polylactide composites. , 2002, Biomaterials.

[10]  A. Dufresne,et al.  Morphological investigation of nanocomposites from sorbitol plasticized starch and tunicin whiskers. , 2002, Biomacromolecules.

[11]  Shen‐guo Wang,et al.  Fabrication and biocompatibility of cell scaffolds of poly(L-lactic acid) and poly(L-lactic-co-glycolic acid) , 2002 .

[12]  A. Morin,et al.  Nanocomposites of Chitin Whiskers from Riftia Tubes and Poly(caprolactone) , 2002 .

[13]  Carmen Albano,et al.  Polypropylene/wood flour composites: treatments and properties , 2001 .

[14]  S. Eichhorn,et al.  Review: Current international research into cellulosic fibres and composites , 2001 .

[15]  X. Sun,et al.  Physical properties of poly(lactic acid) and starch composites with various blending ratios , 2000 .

[16]  M. Misra,et al.  Biofibres, biodegradable polymers and biocomposites: An overview , 2000 .

[17]  G. Marx,et al.  Thermogravimetric and differential scanning calorimetric analysis of natural fibres and polypropylene , 1999 .

[18]  J. Saja,et al.  Dynamic mechanical analysis of injection-moulded discs of polypropylene and untreated and silane-treated talc-filled polypropylene composites , 1999 .

[19]  S. Ray,et al.  New polylactide-layered silicate nanocomposites. 2. Concurrent improvements of material properties, biodegradability and melt rheology , 2003 .

[20]  Craig Clemons,et al.  Wood-plastic composites in the United States: the interfacing of two industries , 2002 .

[21]  Paul Kiekens,et al.  Biopolymers: overview of several properties and consequences on their applications. , 2002 .

[22]  M. Nogami,et al.  Preparation and mechanical properties of polylactic acid composites containing hydroxyapatite fibers. , 2001, Biomaterials.

[23]  Qinglin Wu,et al.  Chemical Coupling in Wood Fiber and Polymer Composites: A Review of Coupling Agents and Treatments , 2000 .

[24]  N. Shiraishi,et al.  Composites of wood and polypropylenes IV. , 1990 .

[25]  B. Kokta,et al.  Improving adhesion of wood fiber with polystyrene by the chemical treatment of fiber with a coupling agent and the influence on the mechanical properties of composites , 1989 .

[26]  W. Degroot,et al.  Combustion characteristics of cellulosic fuels. , 1976 .