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题名	室温硫化硅橡胶纳米复合材料及其在电力防污闪中的应用
作者	张冬海
学位类别	博士
答辩日期	2009-09-18
授予单位	中国科学院过程工程研究所
授予地点	过程工程研究所
导师	陈运法
关键词	室温硫化硅橡胶 纳米 复合材料 污闪 功能颗粒 表面设计 改性
其他题名	Room Temperature Vulcanized Silicone Rubber Nanocomposite and Its Application to Prevent Pollution Flashover
学位专业	化学工程
中文摘要	论文针对目前国内外防污闪涂层技术在实际应用中遇到的急待解决的问题，以研制低成本、高性能的新型纳米复合材料为目标，主要内容与结果如下： (1) 开发了室温硫化硅橡胶（RTV）制备的新工艺。 (2) 探索了原位有机-无机杂化补强RTV的新型复合方法。正硅酸乙酯原位水解生成的SiO2颗粒粒径分布在30~50nm，明显提高了RTV的力学性能。 (3) 设计并制备了高、低两种表面官能密度的纳米SiO2颗粒，研究了两种改性的纳米SiO2颗粒对RTV力学性能的影响并探索了补强的机理。 (4) 研究了高、低两种表面官能密度的纳米SiO2颗粒对RTV基胶PDMS流变行为的影响，分析了无机纳米颗粒表面结构对PDMS触变性能的作用机制。 (5) 制备了层状Mg-Al LDH及新型的Ca-Fe LDH、Ca-Fe-Ce LDH，并进行了复配改性设计。对比分析了Mg-Al LDH、Ca-Fe LDH、Ca-Fe-Ce LDH与Al(OH)3、Mg(OH)2对RTV热稳定性、阻燃性能的影响。 (6) 制备了新型针状紫外线吸收材料α-FeOOH并进行了表面改性研究。对比了α-FeOOH与纳米ZnO、纳米TiO2对RTV紫外线吸收性能的影响 (7) 研究了电力新型防污闪纳米复合RTV材料的200L中试制备工艺与过程放大，并对产品进行了检测。
英文摘要	To solve the problems in the actual application of the existing coatings, some research had been proceed and as a result, developed a novel nano-composite with low cost and high performances. The results are summarized as follows: (1) A new preparation method of RTV was developed. (2) A method for reinforcing RTV by in-situ organic-inorganic hybridization was explored. The results show that the product of in-situ hydrolysis by ethyl orthosilicate can produce SiO2 particles with the size distribution of 30-50 nm. The in-situ hybridization significantly improves the mechanical properties of RTV. (3) Two types of SiO2 nanoparticles with different surface functionalizing density were designed and produced, and further studied in terms of their effects on mechanical performances of RTV, and the reinforcement mechanism was also explored. (4) Two types of SiO2 nanoparticles with different surface functionalizing density were studied in terms of their effects on the rheological behaviors of PDMS, which is a precursor for RTV. The acting mechanism of inorganic nanoparticles surface structure on the thixotropic properties of PDMS was analyzed. (5) Layered compounds of Mg-Al LDH, Ca-Fe LDH and Ca-Fe-Ce LDH were prepared and further modified respectively. They were compared with Al(OH)3 and Mg(OH)2 in terms of the effects on the heat and flammability resistance of RTV. (6) Novel α-FeOOH in needle form was prepared and further surface-modified. It was compared with nano ZnO and TiO2 in terms of the effect on the UV absorptivity of RTV. (7) A preparation process scaling up to 200L of the novel anti-pollution-flashover RTV composite was studied, and the resulting product was tested.
语种	中文
公开日期	2013-09-13
页码	157
内容类型	学位论文
源URL	[http://ir.ipe.ac.cn/handle/122111/1104]
专题	过程工程研究所_研究所（批量导入）
推荐引用方式 GB/T 7714	张冬海. 室温硫化硅橡胶纳米复合材料及其在电力防污闪中的应用[D]. 过程工程研究所. 中国科学院过程工程研究所. 2009.

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