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| 纳米钛对PP耐光氧老化性能的影响 | |
| 引用本文： | 李跃文,陈兴华,杨敏,辛湘杰,苏胜培.纳米钛对PP耐光氧老化性能的影响[J].合成树脂及塑料,2007,24(3):25-28. |
| 作者姓名： | 李跃文 陈兴华 杨敏 辛湘杰 苏胜培 |
| 作者单位： | 1. 湖南科技职业学院,湖南,长沙,410118;湖南师范大学化学化工学院,湖南,长沙,410081 2. 湖南科技职业学院,湖南,长沙,410118 3. 科星纳米工程技术有限公司,湖南,长沙,410100 4. 湖南师范大学化学化工学院,湖南,长沙,410081 |
| 基金项目： | 国家自然科学基金资助课题(50362002)，湖南省科技计划项目(05FK5012) |
| 摘 要： | 研究了聚丙烯(PP)及PP/纳米钛复合材料在自然条件下的光氧老化性能及其机理。存自然条件下曝露90天后,纯PP的断裂伸长率和冲击强度分别为曝露前的3%和41%,而含质量分数为l%和2%纳米钛的PP复合材料断裂伸长率分别为曝露前的22%和25%;其冲击强度分别为曝露前的63%和70%;曝露后,纯PP中羰基含量比复合材料高。 |
| 关 键 词： | 聚丙烯 纳米钛 熔融共混 复合材料 光氧老化 |
| 文章编号： | 1002-1396(2007)03-0025-04 |
| 修稿时间： | 2006-12-03 |
Affect of nano-Ti on photooxidative aging-resistant properties of PP |
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| Li Yuewen,Chen Xinhua,Yang Min,Xin Xiangjie,Su Shengpei.Affect of nano-Ti on photooxidative aging-resistant properties of PP[J].China Synthetic Resin and Plastics,2007,24(3):25-28. | |
| Authors: | Li Yuewen Chen Xinhua Yang Min Xin Xiangjie Su Shengpei |
| Abstract: | The photooxidative aging and aging mechanism of polypropylene (PP) and PP/nano-Ti composites were studied.The results have revealed that the rupture elongation of virginal PP,which has been exposed out of doors for 90 days,is only 3% of that of its corresponding no-exposed PP while the rupture elongation of PP composites containing 1% and 2% nano-Ti are 22% and 25% of that of their corresponding no-exposed composites.The impact strength of virginal PP is only 41% of that of its corresponding no-exposed PP while the impact strength of PP composites containing 1% and 2% nano-Ti are 63% and 70% of that of their corresponding no-exposed composites.Furthermore,after exposed for 90 days,the content of carbonyl functional group in virginal PP is higher compared to that in the composites. |
| Keywords: | polypropylene nano-Ti melt blending composites photooxidative aging |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |