通过超声辅助、氨水催化,使用十六烷基三甲氧基硅烷作为正硅酸乙酯的共前躯体,在交联剂3-缩水甘油丙基三甲氧基硅烷(GPTMS)和无交联剂下,溶胶、凝胶过程制备了疏水纳米二氧化硅.使用FT-IR、纳米粒度仪、TG-DTA等分析方法表征疏水纳米二氧化硅,测定表明该粒子直径大小集中在30-50 nm,GPTMS的添加提高了疏水纳米复合物的稳定性.水被疏水二氧化硅涂料处理后,水接触角从处理前的20°上升到93°.耐酸性评价显示疏水纳米二氧化硅涂料处理的石材具有良好的耐酸性.
参考文献
| [1] | 张秉坚;尹海燕;铁景沪 .石质文物表面防护中的问题和新材料[J].文物保护与考古科学,2000,12(02):1-4. |
| [2] | M.J. Melo;S. Bracci;M. Camaiti .Photodegradation of acrylic resins used in the conservation of stone[J].Polymer Degradation and Stability,1999(1):23-30. |
| [3] | M.J.Mosquera;J.Pozo;L.Esquivias .Stress During Drying of Two Stone Consolidants Applied in Monumental Conservation[J].Journal of Sol-Gel Science and Technology,2003(1/2/3):1227-1231. |
| [4] | HEDGE N D;HIRASHIMA H;RAO A V .Two step sot-gel pro-ceasing of TEOS based hydrophobic silica aerogels using trimethyle-thoxysilane as a co-precursor[J].Journal of Porous Materials,2007,14:165-171. |
| [5] | HEDGE N D;RAO A V .Organic modification of TEOS based silica acrogels using hexadecyltrimethoxysilane as a hydrophobic reagent[J].Applied Surface Science,2006,252:1566-1572. |
| [6] | 徐飞高,汤剑,高士祥.模拟酸雨对不同石材防护材料的影响[J].涂料工业,2009(01):1-4. |
| [7] | Daoud WA;Xin JH;Tao XM .Synthesis and characterization of hydrophobic silica nanocomposites[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(15):5368-5371. |
| [8] | Liu YL;Wei WL;Hsu KY;Ho WH .Thermal stability of epoxy-silica hybrid materials by thermogravimetric analysis[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2004(1/2):139-147. |
| [9] | Walid A. Daoud;John H. Xin;Xiaoming Tao .Superhydrophobic Silica Nanocomposite Coating by a Low-Temperature Process[J].Journal of the American Ceramic Society,2004(9):1782-1784. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%