Browse > Article
http://dx.doi.org/10.5658/WOOD.2013.41.2.134

UV-curing Behaviors and Mechanical Properties of UV-cured Polylactic Acid (PLA)  

Lee, Seung-Woo (Laboratory of Adhesion & Bio-Composites, Program in Environmental Materials Science, Research Institute for Agriculture & Life Science, Seoul National University)
Park, Ji-Won (Laboratory of Adhesion & Bio-Composites, Program in Environmental Materials Science, Research Institute for Agriculture & Life Science, Seoul National University)
Park, Cho-Hee (Laboratory of Adhesion & Bio-Composites, Program in Environmental Materials Science, Research Institute for Agriculture & Life Science, Seoul National University)
Kim, Hyun-Joong (Laboratory of Adhesion & Bio-Composites, Program in Environmental Materials Science, Research Institute for Agriculture & Life Science, Seoul National University)
Eom, Young-Geun (Department of Forest Products & Biotechnology, College of Forest Science, Kookmin University)
Publication Information
Journal of the Korean Wood Science and Technology / v.41, no.2, 2013 , pp. 134-140 More about this Journal
Abstract
UV curing was introduced via a chemical treatment by adding small amounts of a hexafunctional acrylic monomer and a photoinitiator to improve the mechanical properties of PLA. This study also employed a semi-interpenetrated structured polymer network through the process of UV-curing. The UV curing behaviors were investigated using FTIR-ATR spectroscopy and gel fraction determination. Also, the tensile strength was investigated with different hexafunctional acrylic monomer contents and UV doses. The results showed that the crosslinking of UV-induced chemically treated PLA started at a low content of hexafunctional acrylic monomer, resulting in a significant improvement of the mechanical properties compared to those of neat PLA due to crosslinking.
Keywords
polylactic acid (PLA); UV curing; chemical crosslinking; hexafunctional acrylic monomer; mechanical properties; semi-IPN structure;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Auchter, G., O. Aydin, A. Zettl, and D. Satas. 1999. Handbook of pressure sensitive adhesive technology, D. Satas (Ed.), Satas Associates, Warwick, RI. 444-514.
2 Chattopadhyay, D. K., S. S. Panda, and K. V. S. N. Raju. 2005. Thermal and mechanical properties of epoxy acrylate/methacrylates UV cured coatings. Prog. Org. Coat. 54(1): 10-19.   DOI   ScienceOn
3 Do, H.-S., Y.-J. Park, and H.-J. Kim. 2006. Preparation and adhesion performance of UV-crosslinkable acrylic pressure sensitive adhesives. J. Adhesion Sci. Technol. 20(13): 1529-1545.   DOI   ScienceOn
4 Kajtna, J., B. Likozar, J. Golob, and M. Krajnc. 2008. The influence of the polymerization on properties of an ethylacrylate / 2-ehtyl hexylacrylate pressure-sensitive adhesive suspension. Int. J. Adhes. Adhes. 28(7): 382-390.   DOI   ScienceOn
5 Kajtna, J., J. Golob, and M. Krajnc. 2008. The effect of polymer molecular weight and crosslinking reactions on the adhesion properties of microsphere water-based acrylic pressure-sensitive adhesives. Int. J. Adhes. Adhes. 29(2): 186-194.
6 Kajtna, J. and U. Sebenik. 2009. Microsphere pressure sensitive adhesive acrylic polymer/ montmorillonite clay nanocomposite materials. Int. J. Adhes. Adhes. 29(5): 543-550.   DOI   ScienceOn
7 Tsuji, H. and Y. Ikada. 1995. Properties and morphologies of poly(l-lactide): 1. Annealing condition effects on properties and morphologies of poly(l-lactide). Polymer. 36(14): 2709-2716.   DOI   ScienceOn
8 Ogata, N., G., Jimenez, H., Kawai, and T. Ogihara. 1997. Structure and thermal/ mechanical properties of poly(l-lactide)-clay blend. J. Polym. Sci., Part B: Polym. Phys. 35(2): 389-396.   DOI   ScienceOn
9 Urayama, H., C. H. Ma, and Y. Kimura. 2003. Mechanical and Thermal Properties of Poly(L-lactide) Incorporating Various Inorganic Fillers with Particle and Whisker Shapes. Macromol. Mater. Eng. 288(7): 562-568.   DOI   ScienceOn
10 Trimaille, T., C. Pichot, A. Elaissari, H. Fessi, S. Briancon, and T. Delair. 2003. Poly(d,l-lactic acid) nanoparticle preparation and colloidal characterization. Colloid Polym. Sci. 281(12): 1184-1190.   DOI
11 Hu, X., H. S. Xu, and Z. M. Li. 2007. Morphology and Properties of Poly(L-Lactide) (PLLA) Filled with Hollow Glass Beads. Macromol. Mater. Eng. 292(5): 646-654.   DOI   ScienceOn
12 Wan, Y. Z., Y. L. Wang, X. H. Xu, and Q. Y. Li. 2001. In vitro degradation behavior of carbon fiber-reinforced PLA composites and influence of interfacial adhesion strength. J. Appl. Polym. Sci. 82(1): 150-158.   DOI   ScienceOn
13 Li, B. H. and M. C. Yang. 2006. Improvement of thermal and mechanical properties of poly(L-lactic acid) with 4,4-methylene diphenyl diisocyanate. Polym. Adv. Technol. 17(6): 439-443.   DOI   ScienceOn
14 Di, Y. W., S. Iannace, E. Di Maio, and L. Nicolais. 2005. Reactively modified poly(lactic acid): properties and foam processing. Macromol. Mater. Eng. 290(11): 1083-1090.   DOI   ScienceOn
15 Yang, S.-L., Z.-H. Wu, W. Yang, and M.-B. Yang. 2008. Thermal and mechanical properties of chemical crosslinked polylactide (PLA). Polymer Testing 27(8): 957-963.   DOI   ScienceOn
16 Park, Y.-J., D.-H. Lim, H.-J. Kim, D.-S. Park, and I.-K. Sung. 2009. UV- and thermal- curing behaviors of dual-curable adhesives based on epoxy acrylate oligomers. Int. J. Adhes. Adhes. 29(7): 710-717.   DOI   ScienceOn
17 Dufour, P., J. P. Fouassier, J. F. Rabek, and editors. 1993. Radiation curing in polymer science and technology. Vol.1. London: Elsevier Science Publisher.
18 Xiao, P., Y. Wang, M. Dai, G. Wu, S. Shi, and J. Nie. 2007. Synthesis and photopolymerization kinetics of benzophenone piperazine one-component initiator. J. Polym. Adv. Technol. 19(5): 409-413.
19 Kayaman, N. A., R. Demirci, M. Cakir, and A. Gungor. 2005. UV-curable interpenetrating polymer networks based on acrylate/vinyl ether functionalized urethane oligomers. Radiat. Phys. Chem. 73(5): 254-262.   DOI   ScienceOn
20 Bayramoglu, G., M. V. Kahraman, N. Kayaman-Apohan, and A. Gungor. 2006. Synthesis and characterization of UV-curable dual hybrid oligomers based on epoxy acrylate containing pendant alkoxysilane groups. Prog. Org. Coat. 57(1): 50-55.   DOI   ScienceOn
21 Joo, H.-S., Y.-J. Park, H.-S. Do, H.-J. Kim, S.-Y. Song, and K.-Y. Choi. 2007. The curing performance of UV-curable semi-interpenetrating polymer network structured acrylic Pressure-sensitive adhesives. J. Adhesion Sci. Technol. 21(7): 575-588.   DOI   ScienceOn
22 Eling, B., S. Gogolewski, and A. Pennings. 1982. Biodegradable materials of poly(l-lactic acid): 1. Melt-spun and solution-spun fibres. Polymer. 23(11): 1587-1593.   DOI   ScienceOn
23 Pluta, M. 2004. Morphology and properties of polylactide modified by thermal treatment, filling with layered silicates and plasticization. Polymer. 45(24): 8239-8251.   DOI   ScienceOn
24 Rasal, R. M., A. V. Janorkar, and D. E. Hirt. 2010. Poly(lactic acid) modifications. Prog. Polym. Sci. 35(3): 338-356.   DOI   ScienceOn
25 Li, T. N., L. S. Turng, S. Q. Gong, and K. Erlacher. 2006. Polylactide, nanoclay, and core-shell rubber composites. Polym. Eng. Sci. 46(10): 1419-1427.   DOI   ScienceOn
26 Anderson, K. S., S. H. Lim, and M. A. Hillmyer. 2003. Toughening of polylactide by melt blending with linear low-density polyethylene. J. Appl. Polym. Sci. 89(14): 3757-3768.   DOI   ScienceOn
27 Dorgan, J. R., H. Lehermeir, and M. Mang. 2000. Thermal and Rheological Properties of Commercial-Grade Poly(Lactic Acid)s. J. Polym. Environ. 8(1): 1-9.   DOI   ScienceOn
28 Nugroho, P., H. Mitomo, F. Yoshii, and T. Kume. 2001. Degradation of poly(l-lactic acid) by r-irradiation. Polym. Degrad. Stab. 72(2): 337-343.   DOI   ScienceOn
29 Xu, H., C. Q. Teng, and M. H. Yu. 2006. Improvements of thermal property and crystallization behavior of PLLA-based multiblock copolymer by forming stereocomplex with PDLA oligomer. Polymer. 47(11): 3922-3928.   DOI   ScienceOn
30 Shibata, M., N. Teramoto, and Y. Inonue. 2007. Mechanical properties, morphologies, and crystallization behavior of plasticized poly(l-lactide)/poly(butylene succinate-co-llactate) blends. Polymer. 48(9): 2768-2777.   DOI   ScienceOn
31 Urayama, H., T. Kanamori, K. Fukushima, and Y. Kimura. 2003. Controlled crystal nucleation in the melt-crystallization of poly(l-lactide) and poly(l-lactide)/poly(d-lactide) stereocomplex. Polymer. 44(19): 5635-5641.   DOI   ScienceOn