By a News Reporter-Staff News Editor at Journal of Technology -- Researchers detail new data in Polymer Research. According to news originating from Chengdu, People's Republic of China, by VerticalNews correspondents, research stated, "In this work, different contents of nano-silica (SiO2) particles were introduced into poly(t-lactide) (PLLA) to prepare PLLA/SiO2 composites though a two-step compounding method, i.e. solution compounding (preparing master batch) and subsequent melt compounding (master batch dilution). The dispersion of SiO2 was characterized using scanning electron microscope (SEM)."
Our news journalists obtained a quote from the research from Southwest Jiaotong University, "The hydrophilicity of the material was evaluated by measuring the contact angle of water on the sample surface. The hydrolytic degradation measurements of the nanocomposites were carried out in alkaline solution at two different temperatures, i.e. 37 and 55 degrees C. Subsequently, microstructure evolution of PLEA matrix during the hydrolytic degradation process was systematically investigated using wide angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), and Fourier transform infrared spectroscopy (FTIR). The results showed that SiO2 had good dispersion in the PLLA matrix. Largely enhanced hydrolytic degradation ability was achieved for PLLA/SiO2 composites. Increasing the content of SiO2 or enhancing the hydrolytic degradation temperature accelerated the hydrolytic degradation of PLEA matrix."
According to the news editors, the research concluded: "Further results showed that SiO2 promoted the reorganization of microstructure of PULA matrix during the hydrolytic degradation process."
For more information on this research see: Hydrolytic degradation behavior of poly(L-lactide)/SiO2 composites. Polymer Degradation and Stability, 2013;98(12):2672-2679. Polymer Degradation and Stability can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Polymer Degradation and Stability - www.elsevier.com/wps/product/cws_home/405941)
The news correspondents report that additional information may be obtained from H.M. Chen, Southwest Jiaotong Univ, Minist Educ, Key Lab Adv Technol Mat, Sch Mat Sci & Engn, Chengdu 610031, People's Republic of China. Additional authors for this research include Y.P. Wang, J. Chen, J.H. Yang, N. Zhang, T. Huang and Y. Wang.
Keywords for this news article include: Asia, Chengdu, Polymer Research, People's Republic of China
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