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| N,N,N-三(乙氧基硅丙烷)三聚氰胺用于纸质文物保护 |
| Application of N,N,N-Tris(Triethoxysilylpropyl) Melamine in Paper Culture Heritage Conservation |
| 收稿日期： |
| DOI：10.11980/j.issn.0254-508X.2012.11.008 |
| 关键词: 纸质文物 脱酸 加固 氨基硅氧烷 |
| Key Words:paper based cultural relics deacidification strengthening amino siloxane |
| 基金项目:2011年度国家文化科技提升计划项目“近现代文献脱酸关键技术集成研究与示范”。 |
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| 摘要:以三聚氯氰为骨架，接枝氨基硅氧烷类物质KH-550，并将所合成产物N，N，N-三（乙氧基硅丙烷）三聚氰胺（TEPSMA）应用于纸质文物保护处理。通过加速热老化对TEPSMA处理前后纸张的pH值、抗张强度、碱残留及纸张纤维断裂率进行测定。结果表明，经过TEPSMA处理后，纸张pH值得到明显的提高（从3.2到7.7~8.7左右），抗张强度亦从915 N/m上升到1300 N/m，且TEPSMA处理前后纸张颜色变化轻微（ΔE*=1.72）；热老化实验表明，经过TEPSMA处理后的纸张pH值能够保持在中性或弱碱性并残留一定的碱，抗张强度维持在一个比较稳定的值1200 N/m左右；对比处理前后纸张纤维素聚合度，处理后的纸张纤维纤维素聚合度下降轻微，表明纸张经TEPSMA处理后，能够显著降低纸张老化速率。 |
| Abstract:N,N,N-tris(triethoxysilylpropyl) melamine was prepared by using polychlorostyrene as a skeleton and grafting with aminosiloxane KH-550 was used to paper culture heritage treatment. The heat aging test was used to evaluate the changes of pH value, tensile strength, alkaline residue and the fiber breaking percentage of the paper before and after treatment. Results showed that the pH value increased from 3.2 to 7.7~7.8, the tensile strength also increased from 915 N/m to 1300 N/m. Furthermore, the colour change in appearance (ΔE*=1.72) was slight. The heat aging tests indicated that the pH value of treated paper can stabilize in neutral or slight alkaline and also the tensile strength is kept in ~1200 N/m. Compared with the untreated paper, the paper treated with N,N,N-tris(triethoxysilylpropyl) melamine can effectively decrease its aging rate. |
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