利用细菌纤维素(BC)作为增强材料,采用溶液浸渍法制备了细菌纤维素/聚羟基丁酸酯(PHB)复合材料,并利用红外光谱(FT-IR)、扫描电子显微镜(SEM)、X射线衍射(XRD)及力学性能测试对细菌纤维素/聚羟基丁酸酯复合材料的特征进行了研究.结果表明,PHB可以较好地渗透进入BC三维骨架中形成复合材料;在复合材料中PHB和BC的结晶特征均没有发生根本改变,只是随着PHB含量的增加,其特征衍射峰强度变大、半峰宽变小;力学性能测试显示BC能够有效增强PHB的力学性能,复合材料的断裂强度可达91 MPa,断裂伸长率为7.9％,冲击强度为47.8 J/m2,较纯PHB分别提高了310％、75％和140％,其杨氏模量约为1.18 GPa,提高了约100％.由于PHB和BC均是生物材料,这种复合材料在骨组织工程中有望获得应用.
参考文献
| [1] | Dieter Klemm;Brigitte Heublein;Hans-Peter Fink;Andreas Bohn .Cellulose:Fascinating Biopolymer and Sustainable Raw Material[J].Angewandte Chemie,2005(22):3358-3393. |
| [2] | Elvie E. Brown;Marie-Pierre G. Laborie .Bioengineering Bacterial Cellulose/Poly(ethylene oxide) Nanocomposites[J].Biomacromolecules,2007(10):3074-3081. |
| [3] | Charpentier PA;Maguire A;Wan WK .Surface modification of polyester to produce a bacterial cellulose-based vascular prosthetic device[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(18):6360-6367. |
| [4] | Koon-Yang Lee;Min Tang;Charlotte K. Williams;Alexander Bismarck .Carbohydrate derived copoly(lactide) as the compatibilizer for bacterial cellulose reinforced polylactide nanocomposites[J].Composites science and technology,2012(14):1646-1650. |
| [5] | Mechanical, moisture absorption, and biodegradation behaviours of bacterial cellulose fibre-reinforced starch biocomposites[J].Composites science and technology,2009(7/8):1212-1217. |
| [6] | Hiroyuki Yano;Junji Sugiyama;Antonio Norio Nakagaito;Masaya Nogi;Tohru Matsuum;Makoto Hikita;Keishin Honda .Optically Transparent Composites Reinforced with Networks of Bacterial Nanofibers[J].Advanced Materials,2005(2):153-155. |
| [7] | Hernane S. Barud;Josiane L. Souza;Daniele B. Santos .Bacterial cellulose/poly(3-hydroxybutyrate) composite membranes[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2011(3):1279-1284. |
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