Thermal processing influence on mechanical, thermal, and biodegradation behavior in poly(β-hydroxybutyrate)/poly(ε-caprolactone) blends: A descriptive model
作者： Berenice Vergara-Porras , Jorge Noel Gracida-Rodríguez , Fermín Pérez-Guevara
DOI: 10.1002/APP.43569
关键词:
摘要: Poly(β-hydroxybutyrate) [PHB] is a biodegradable and biocompatible polymer produced by some bacteria genders. To improve mechanical properties, PHB has been blended with other polymers. Compression-molded blends of poly(e-caprolactone) [PCL] (70/30 mass ratio) were cooled to room temperature following five different thermal treatments after molding at 180 °C. Blends processed higher cooling rates easier biodegrade, nevertheless elongation break tensile strength decreased. Slower kinetics isothermal increased perfection crystals, as seen in differential scanning calorimetry X-ray diffraction spherulites size. A descriptive model proposed herein where thermal, biodegradation, crystal features related applied. It that properties 70/30 (PHB/PCL) can be predetermined an adequate control conditions during processing. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43569.
sci-hub.se 参考文章(44)
Chang-Sik Ha, Won-Jei Cho, Miscibility, properties, and biodegradability of microbial polyester containing blends Progress in Polymer Science. ,vol. 27, pp. 759- 809 ,(2002) , 10.1016/S0079-6700(01)00050-8
P. J. Barham, Nucleation behaviour of poly-3-hydroxy-butyrate Journal of Materials Science. ,vol. 19, pp. 3826- 3834 ,(1984) , 10.1007/BF00980744
Yoshiharu Kumagai, Yoshiharu Doi, Enzymatic degradation and morphologies of binary blends of microbial poly(3-hydroxy butyrate) with poly(ε-caprolactone), poly(1,4-butylene adipate and poly(vinyl acetate) Polymer Degradation and Stability. ,vol. 36, pp. 241- 248 ,(1992) , 10.1016/0141-3910(92)90062-A
L.M.W.K. Gunaratne, R.A. Shanks, Multiple melting behaviour of poly(3-hydroxybutyrate-co-hydroxyvalerate) using step-scan DSC European Polymer Journal. ,vol. 41, pp. 2980- 2988 ,(2005) , 10.1016/J.EURPOLYMJ.2005.06.015
Keiji Numata, Yoshihiro Kikkawa, Takeharu Tsuge, Tadahisa Iwata, Yoshiharu Doi, Hideki Abe, Enzymatic degradation processes of poly[(R)-3-hydroxybutyric acid] and poly[(R)-3-hydroxybutyric acid-co-(R)-3-hydroxyvaleric acid] single crystals revealed by atomic force microscopy: effects of molecular weight and second-monomer composition on erosion rates. Biomacromolecules. ,vol. 6, pp. 2008- 2016 ,(2005) , 10.1021/BM0501151
L.M.W.K. Gunaratne, R.A. Shanks, G. Amarasinghe, Thermal history effects on crystallisation and melting of poly(3-hydroxybutyrate) Thermochimica Acta. ,vol. 423, pp. 127- 135 ,(2004) , 10.1016/J.TCA.2004.05.003
Shinn-Gwo Hong, Heng-Wei Hsu, Min-Tzung Ye, Thermal properties and applications of low molecular weight polyhydroxybutyrate Journal of Thermal Analysis and Calorimetry. ,vol. 111, pp. 1243- 1250 ,(2013) , 10.1007/S10973-012-2503-3
M.J. Jenkins, Y. Cao, L. Howell, G.A. Leeke, Miscibility in blends of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and poly(ɛ-caprolactone) induced by melt blending in the presence of supercritical CO2 Polymer. ,vol. 48, pp. 6304- 6310 ,(2007) , 10.1016/J.POLYMER.2007.08.033
L.M.W.K. Gunaratne, R.A. Shanks, Melting and thermal history of poly(hydroxybutyrate-co-hydroxyvalerate) using step-scan DSC Thermochimica Acta. ,vol. 430, pp. 183- 190 ,(2005) , 10.1016/J.TCA.2005.01.060
Zhaobin Qiu, Wantai Yang, Takayuki Ikehara, Toshio Nishi, Miscibility and crystallization behavior of biodegradable blends of two aliphatic polyesters. Poly(3-hydroxybutyrate-co-hydroxyvalerate) and poly(ε-caprolactone) Polymer. ,vol. 46, pp. 11814- 11819 ,(2005) , 10.1016/J.POLYMER.2005.10.058