摘要
文章以锐钛型纳米二氧化钛为添加剂来提高PP-R树脂的各项性能,并系统研究了纳米TiO_2粒子的包膜改性,以及改性后的纳米二氧化钛对PP-R树脂耐热性、力学性能以及抗菌性等的影响;通过扫描电镜观察了材料的断面以及晶须在基体中的分散性。研究表明,使用6%的硅铝复合包膜改性后的纳米TiO_2粒子具有较好的分散性;与纯PP-R相比,纳米TiO_2粒子添加量为3%～5%的改性PP-R材料的性能有较大的提高,其热变形温度由72℃提高到96℃,断裂伸长率由45%提高到91%。锐钛型纳米二氧化钛不仅可改善PP-R材料的热学和力学性能,而且可提高材料的抗菌性,其适用添加量为4%。
The capabilities of PP-R resin were improved through adding the anatase titanium dioxide in this paper. The modification process of Nano-TiO2 and the influence of nano-TiO2 in improving the capabilities of PP-R resin, such as the mechanics capabilities, heat capabilities and anti-bacterium, had been researched in detail. The break surface PP-R composite material and the disperse character of stuffing were observed by SEM imagines. The results showed that the Nano-TiO2 modified with 6% Na2 SiO3 possesses better disperse character. Comparing to pure PP-R resin, the capabilities of PP-R adding 3 - 5 % modified Nano-TiO2 was improved largely. The temperature distortion was improved from 72℃ to 92℃ and the Maximum elongation was improved from 45 % to 91% too. The adding of anatase nanometer TiO2 improved not only the mechanics and calorific characters of PP-R, but also the anti-bacterium character.
出处
《塑性工程学报》
EI
CAS
CSCD
北大核心
2007年第2期39-42,共4页
Journal of Plasticity Engineering
基金
攀枝花科技攻关项目资助(20031226)
攀枝花学院科学基金资助。
