Characterization Copper (II) Chloride Modified Montmorillonite filled PLA Nanocomposites

Abstract:

The thermal behaviour of polymer layered silicate nanocomposite were characterised to compare the improvement of the nanocomposite with the pristine polymer. It is known that pristine polymers have some weakness in its thermal properties especially biodegradable polymers. The approach of making the nanocomposite out of modified layered silicate and biodegradable polymer is to enhance the thermal behaviour of the biodegradable polymer. The nanocomposites were produced by solution method technique using dichloromethane as a solvent and the two types of nanoclay were used. One was modified with transition metal ion and another type of nanoclay is pristine nanoclay. Wide angle X-ray diffraction (XRD) was used to characterise the structure of the nanoclay after the modification and the type of nanocomposite obtained. Melting temperature and degradation temperature of the nanocomposite were obtained by using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) respectively. Decrease in both thermal degradation temperature and melting temperature of the nanocomposites were observed.

• Periodical: Advanced Materials Research (Volume 858)
• Pages: 13-18
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.858.13
• Online since: November 2013
• Authors: Abu Hannifa Abdullah, Kamal Yusoh, Mohamad Faiz Mohamed Yatim, Siti Amirah Nor Effendi, Wan Siti Noorhashimah W. Kamaruzaman
• Keywords: Modifications, Nanocomposite, Poly(lactic acid) (PLA), Solution Method, Thermal Property

References

[1] Giannelis, E.P., Polymer layered silicate nanocomposites. Advanced Materials, 1996. 8(1): pp.29-35.

[2] Paul, D.R. and L.M. Robeson, Polymer nanotechnology: Nanocomposites. Polymer, 2008. 49(15): pp.3187-3204.

DOI: 10.1016/j.polymer.2008.04.017

[3] Sinha Ray, S., et al., New polylactide-layered silicate nanocomposites. 2. Concurrent improvements of material properties, biodegradability and melt rheology. Polymer, 2003. 44(3): pp.857-866.

DOI: 10.1016/s0032-3861(02)00818-2

[4] Samyn, F., et al., Crossed characterisation of polymer-layered silicate (PLS) nanocomposite morphology: TEM, X-ray diffraction, rheology and solid-state nuclear magnetic resonance measurements. European Polymer Journal, 2008. 44(6): pp.1642-1653.

DOI: 10.1016/j.eurpolymj.2008.03.021

[5] Sinha Ray, S. and M. Okamoto, Polymer/layered silicate nanocomposites: a review from preparation to processing. Progress in Polymer Science, 2003. 28(11): pp.1539-1641.

DOI: 10.1016/j.progpolymsci.2003.08.002

[6] Z. Ismail, K.Y., A comparative study on the effect of adiabatic extrusion by twin-screw extruder to the crystallization pattern and thermalbehavior of polyamide 6/ C20A nanocomposites Materials Science Forum, 2013. 765: pp.135-142.

DOI: 10.4028/www.scientific.net/msf.756.135

[7] Nawani, P., Gelfer, M. Y., Hsiao, B. S., Frenkel, A., Gilman, J. W., & Khalid, S., Surface modification of nanoclays by catalytically active transition metal ions. Langmuir The Acs Journal Of Surfaces And Colloids, 2007. 23(19): pp.9808-9815.

DOI: 10.1021/la700908m

[8] Alexandre, M. and P. Dubois, Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials. Materials Science and Engineering: R: Reports, 2000. 28(1–2): pp.1-63.

DOI: 10.1016/s0927-796x(00)00012-7

[9] Sinha Ray, S., et al., New polylactide/layered silicate nanocomposites. 5. Designing of materials with desired properties. Polymer, 2003. 44(21): pp.6633-6646.

DOI: 10.1016/j.polymer.2003.08.021

[10] Ahmed, J., S.K. Varshney, and R. Auras, Rheological and thermal properties of polylactide/silicate nanocomposites films. Journal of food science, 2010. 75(2): p. N17-N24.

DOI: 10.1111/j.1750-3841.2009.01496.x

[11] He, H., et al., Organoclays prepared from montmorillonites with different cation exchange capacity and surfactant configuration. Applied Clay Science, 2010. 48(1–2): pp.67-72.

DOI: 10.1016/j.clay.2009.11.024

[12] Pluta, M., J. Jeszka, and G. Boiteux, Polylactide/montmorillonite nanocomposites: Structure, dielectric, viscoelastic and thermal properties. European Polymer Journal, 2007. 43(7): pp.2819-2835.

DOI: 10.1016/j.eurpolymj.2007.04.009

[13] Bikiaris, D., Can nanoparticles really enhance thermal stability of polymers? Part II: An overview on thermal decomposition of polycondensation polymers. Thermochimica Acta, 2011. 523(1–2): pp.25-45.

DOI: 10.1016/j.tca.2011.06.012

[14] Bourbigot, S., et al., Processing and nanodispersion: A quantitative approach for polylactide nanocomposite. Polymer Testing, 2008. 27(1): pp.2-10.

DOI: 10.1016/j.polymertesting.2007.07.008