黄媚章,宋晓丽,黄亦其.纳米SiO2与聚乳酸的相容剂的制备和性能研究[J].包装工程,2016,37(9):12-15.
HUANG Mei-zhang,SONG Xiao-li,HUANG Yi-qi.Preparation and Performance of the Compatilizer of Nano SiO2 and Poly Lactic Acid[J].Packaging Engineering,2016,37(9):12-15. |
| 纳米SiO2与聚乳酸的相容剂的制备和性能研究 |
| Preparation and Performance of the Compatilizer of Nano SiO2 and Poly Lactic Acid |
| 投稿时间：2015-11-13 修订日期：2016-05-10 |
| DOI： |
| 中文关键词: 纳米二氧化硅 聚乳酸 相容性 |
| 英文关键词: nano silicon dioxide poly lactic acid compatibility |
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| 中文摘要: |
| 目的 解决在纳米 SiO2改性聚乳酸中， 由于两者之间的不相容性导致复合材料性能较差的问题。方法 根据纳米二氧化硅与 L-乳酸的原位聚合原理制备纳米 SiO2与聚乳酸的相容剂——二氧化硅-g-聚乳酸（SiO2-g-OLLA）， 并分别对纳米SiO2， PLLA， PLLA/SiO2， PLLA1/SiO2-g-OLLA进行红外吸收光谱、 热性能、 力学性能、 透气性能、 透湿性能分析。结果 PLLA/SiO2的分解温度高于PLLA且失重达到近 74%， 含 SiO2的质量分数为 8%的 PLLA1/SiO2薄膜的拉伸强度和含质量分数为 11%的拉伸强度几乎相同。PLLA的透氧气量和透水气量最小； PLLA1/SiO2的透氧气量和透水气量最大。结论L-乳酸与纳米二氧化硅的反应符合两者的原位聚合原理， 且加入质量分数为 11%的纳米 SiO2仍能保持PLLA1/Si-g-OLLA/SiO2薄膜具有较好的拉伸强度， PLLA1/SiO2-g-OLLA膜的透湿透气性能均得到改善。 |
| 英文摘要: |
| This work aimed to solve the problem of the poor mechanical properties of the composites due to the incompatibility of the nano silicon dioxide particles and the poly lactic acid(PLA). Based on the In-situ polymerization principle, the compatibilizer Silica-g-poly lactic acid（SiO2-g-OLLA）of nano silicon dioxide and L-lactic acid was prepared， and then the samples were characterized using FTIR, calorific properties testing, mechanics performance testing， permeability testing and moisture permeability testing. The decomposition temperature of PLLA/SiO2 was higher than PLLA， and its weight loss reached about 74%. The tensile strength of PLLA1/SiO2 film containing 8% SiO2 was nearly equal to that of the film containing 11% SiO2. The values of oxygen permeation and water vapor permeation of PLLA were the lowest, while the values of oxygen permeation and water vapor permeation of PLLA1/SiO2 were the highest. The reaction between L-lactic acid and nano silicon dioxide obeyed the In-situ polymerization principle and the tensile strength of the PLLA1/Si-g-OLLA/SiO2 film was well kept after addition of 11% nano silicon dioxide, and the oxygen permeation and water vapor permeation performance was improved. |
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