尹兴,孙诚,王蕊,卢通文.玻璃纤维/聚乳酸复合包装薄膜的制备及表征[J].包装工程,2016,37(13):19-23.
YIN Xing,SUN Cheng,WANG Rui,LU Tong-wen.Preparation and Characterization of Glass Fiber/Poly Lactic Acid Composite Packaging Film[J].Packaging Engineering,2016,37(13):19-23. |
| 玻璃纤维/聚乳酸复合包装薄膜的制备及表征 |
| Preparation and Characterization of Glass Fiber/Poly Lactic Acid Composite Packaging Film |
| 投稿时间：2016-03-15 修订日期：2016-07-10 |
| DOI： |
| 中文关键词: 聚乳酸 玻璃纤维 力学性能 硅烷偶联剂 复合包装材料 |
| 英文关键词: poly lactic acid glass fiber mechanical property silane coupling agent composite packaging material |
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| 中文摘要: |
| 目的 添加适量的玻璃纤维(GF)改善聚乳酸(PLA)的力学性能以适应产品的包装。 方法 聚乳酸与玻璃纤维共混制备复合包装材料，为了增加 2 种物质的相容性，加入 KH550 改性玻璃纤维以增强材料的力学性能。测试该复合材料力学性能、透光率、红外谱图，并用扫描电子显微镜观察复合包装材料的断面形貌。 结果 聚乳酸中添加一定量的玻璃纤维后，复合薄膜的力学性能增强。添加质量分数为 15 %的玻璃纤维，薄膜的拉伸强度最大；添加质量分数为 25%的玻璃纤维时，冲击强度最大；用质量分数为 1%的 KH550 偶联剂改性玻璃纤维，明显增强了 GF 和 PLA 的相容性，拉伸强度明显提高； GF 所占比例愈大， GF/PLA 复合薄膜材料的透光率越低，雾度越高，对包装材料的可视性有一定的影响。 结论 玻璃纤维具有超强的增强效果，其在改善聚乳酸脆性方面具有显著的意义和广阔的发展前景。 |
| 英文摘要: |
| Proper amount of glass fiber (GF) was added into poly lactic acid (PLA) to improve its mechanical property for adapting to the packing of the products. PLA and GF were mixed together to prepare composite packaging material. In order to enhance the compatibility of the two substances, KH550 was added to modify GF to increase the mechanical properties of the material. And then the mechanical properties, light transmittance, fourier transfer infrared spectroscopy(FTIR)were tested, and the fracture appearance of the composite packing materials was observed by SEM. It was showed that the mechanical properties of the composite packaging material increased after GF was added into PLA. When the mass fraction of GF was 15%, the tensile strength of the composite packing materials reached the maximum. When the mass fraction of the GF was 25%, the impact strength reached the maximum. When the mass fraction of 1% KH550 coupling agent was used to modify GF, the tensile strength increased significantly, because it increased the compatibility between GF and PLA. As the percentage of GF increased, the light transmittance of GF/PLA composite film decreased, whereas the haze increased obviously, thus it influenced the visibility of packaging materials. In conclusion, GF had strong reinforcing effect. It will have significant meaning and wide development in improving brittleness of PLA. |
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