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| 摘要: |
| 研究了纳米TiO2的改性以及改性后的纳米TiO2对PP-R树脂的力学性能、耐热性能和紫外老化性能的影响.结果表明:用6%(质量分数,下同)包膜剂进行硅铝复合包膜改性后的纳米TiO2具有较好的分散性能;与纯PP-R树脂相比,添加4%经硅铝复合包膜改性后的纳米TiO2时,纳米TiO2/PP-R树脂复合材料性能有较大提高,其热变形温度由72℃提高到92℃,断裂伸长率由45%提高到90%;纳米TiO2/PP-R树脂复合材料的力学性能、熔融温度等随紫外照射时间延长而下降的趋势明显低于纯Pp-R树脂,说明纳米TiO2可大幅提高复合材料的紫外老化性能. |
| 关键词: 纳米TiO2 无规共聚聚丙烯(PP-R)树脂 力学性能 紫外老化性能 |
| DOI： |
| 分类号:TU599 |
| 基金项目:四川省重大科技公关项目资助，攀枝花市科技攻关项目资助? |
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| Study on Preparation and Performance of Nano-TiO_2/PP-R Resin Composites |
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ZOU Min WANG Qi-lin
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| Abstract: |
| The performances of polypropylene random(PP-R) resin were improved through adding the anatase titanium dioxide.The modification process of nano-TiO_2 and the influence of nano-TiO_2 on the performances of PP-R resin,such as mechanical properties,thermal properties and ultraviolet(UV) aging behavior were investigated.The results show that the nano-TiO_2 modified with 6%(by mass) Na_2SiO_3 possesses better dispersing character.Compared with pure PP-R resin,the performances of PP-R with 4%(by mass) modified na... |
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