APTES/AEAPMDMS原位接枝用于纸质文献增强修复研究

Study on Strengthening of Literature Paper with in-situ Grafting of APTES/AEAPMDMS

关键词:  纸质文献  增强修复  氨基烷基烷氧基硅烷  原位接枝

Key Words:literature paper  enhanced repair  aminoalkylalkoxysilane  in-situ grafting

摘要:本研究将三官能团3-氨丙基三乙氧基硅烷（APTES）和二官能团3-（2-氨基乙基氨基）丙基甲基二甲氧基硅烷（AEAPMDMS）以一定比例溶于醇水溶液中，制备成APTES/AEAPMDMS增强剂，并在不同反应温度下反应不同时间将其用于纸张增强修复处理。结果表明，APTES/AEAPMDMS喷涂在纸张上，并填充在纤维之间，渗透性良好；同时，增强剂在原位与纸张纤维发生接枝反应，提高了纸张的强度性能。当反应温度120℃，反应时间为0.75 h，接枝效率高达73.9%，与原纸相比，修复后纸张的抗张指数、零距抗张强度、耐折度分别提高82.2%、37.4%、100%，但白度下降2.35%，色差为1.42。

Abstract:In this study， the trifunctional group （3-aminopropyl） triethoxysilane （APTES） and the difunctional group 3-（2-aminoethylamino） propyldimethoxymethylsilane （AEAPMDMS） were dissolved in alcohol aqueous solution in certain ratios to prepare APTES/AEAPMDMS reinforcing agent which was used to strengthen the paper at different temperatures for different times. The results showed that APTES/AEAPMDMS was sprayed on the paper and filled between the fibers with good permeability. Meanwhile， the reinforcing agent grafted with the paper fibers in situ， which improved the strength properties of the paper. When the temperature was 120℃ and time was 0.75 h， the grafting efficiency was as high as 73.9%. Compared with the original paper， the tensile index， zero-span tensile strength， and folding endurance of strengthened paper increased by 82.2%， 37.4%， and 100%， respectively， while the brightness decreased by 2.35% and the chromatic aberration was 1.42.