Browse > Article
http://dx.doi.org/10.5762/KAIS.2015.16.1.914

Effects of nucleating agents and plasticizers on the crystallinity and crystal structure of PLA(PolyLactic Acid)  

Park, Eun-Jo (Wooripla)
Park, Hern-Jin (Department of Chemical Engineering, Soonchunhyang University)
Kim, Dong-Hak (Department of Chemical Engineering, Soonchunhyang University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.1, 2015 , pp. 914-920 More about this Journal
Abstract
In this paper, the crystal structure and the crystallinity of PLA(PolyLactic Acid) were studied. PLA is a eco-friendly thermoplastic which completely decomposed by microorganisms, but has low thermal stability and low degree of crystallinity. The low crystallization rate makes the cycle time of injection molding longer and the degree of crystallinity lower. It is a very big disadvantage comparing the other thermoplastics. We improved the degree of crystallinity and the crystallization rate by introducing nucleating agents and plasticizer, and discussed the mechanism.
Keywords
Crystallization rate; Degree of Crystallinity; Nucleating agent; plasticizer; PLA;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Michel A. Huneault et al., "Poly(lactic acid) crystallization", Progress in Polymer Science, Vol. 37, No. 12, pp.1657-1677, 2012. DOI: http://dx.doi.org/10.1016/j.progpolymsci.2012.07.005   DOI   ScienceOn
2 JenTaut Yeh et al., "Isothermal crystallization kinetics and crystal structure of poly(lactic acid) : Effect of triphenyl phosphate and talc", Vol. 118, No. 6, pp.3560-3562, 2010.
3 Ming Li et al., "Nonisothermal crystallization kinetics of poly(lactic acid) formulations comprising talc with poly(ethylene glycol)", Polymer Engineering and Science, Vol. 50, No. 12, pp.5-7, 2010. DOI: http://dx.doi.org/10.1002/pen.21755
4 Huneault et al., "Effect of nucleation and plasticization on the crystallization of poly(lactic acid)", Polymer, Vol. 48, No. 23, pp.6858-6859, 2007.
5 Felice De Santis et al., "Nucleation and crystallization kinetics of poly(lactic acid)", Thermochimica Acta, Vol. 522, No. 1-2, pp,129-130, 2011.
6 Lijia An et al., "Crystal structure and morphology in fluenced by shear effect of poly(L-lactide) and its melting behavior revealed by WAXD, DSC and in-situ POM", Polymer, Vol. 52, No. 15, pp.3478-3480, 2010.   DOI
7 E.Pioskowska et al., "Crystallization, structure and properties of plasticized poly(L-lactide)", Polymer, Vol. 46, No. 23, pp.2-5, 2005   DOI
8 Madami Okamoto et al., "Morphology and crystallization kinetics in a mixture of low-molecular weight aliphatic amide and polylactide", Polymer, Vol. 47, No. 4, pp.3-5, 2006
9 Lin-Qiong Xu et al., "Crystallization and foaming behaviors of Poly(lactic acid) using supercritical carbondioxide as a foaming agent", SPE ANTEC, pp.2454-2458, 2014
10 Supaphorn Thumsorn et al., "Crystallization characteristic and heat seal properties of biodegradable films", SPE ANTEC, pp.309-313, 2014
11 Peng Zhao et al., "Crystallization characterrization of injection molded parts using ultrasonic technology", SPE ANTEC, pp.1515-1519, 2014
12 Saara Inkinen et al., "From Lactic Acid to Poly(lactic acid) (PLA):Characterization and Analysis of PLA and Its Precursors", Biomacromolecules Vol.12 No.3, pp.523-532, 2011 DOI: http://dx.doi.org/10.1021/bm101302t   DOI