利用水解缩合的方法,将聚甲基三乙氧基硅烷(PTS)、二甲基二乙氧基硅烷(DDS)和γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH570)在盐酸(HCl)的催化作用下进行反应,制备出一种可UV固化有机硅树脂预聚物,通过FT-IR、29Si-NMR对预聚物的光固化过程和缩合程度进行了表征;同时研究了固化膜的热性能、表面能、耐水性、耐乙醇性、硬度、附着力等.研究结果表明:紫外光固化30 s后,有机硅预聚物的双键转化率达到了95.89％,UV固化有机硅涂膜失质量5％和15％对应的温度T5％和T15％分别为194.9℃和261.8℃;固化膜的表面能为16.36 mJ/m2.
参考文献
| [1] | 孙芳,李明磊,熊军,江盛玲,杜洪光.光敏有机硅聚氨酯丙烯酸酯预聚体光聚合性能的研究[J].辐射研究与辐射工艺学报,2009(03):133-138. |
| [2] | Oestreich S.;Struck S. .Additives for UV-curable coatings and inks[J].Macromolecular symposia,2002(0):333-342. |
| [3] | Ewa Andrzejewska .Photopolymerization kinetics of multifunctional monomers[J].Progress in Polymer Science,2001(4):605-665. |
| [4] | 曹冰,董文庭,朱从善.有机改性SiO2无支撑膜的溶胶凝胶法制备[J].光学学报,1999(04):574-576. |
| [5] | Yang, S.;Kim, J.-S.;Jin, J.;Kwak, S.-Y.;Bae, B.-S. .Cycloaliphatic epoxy oligosiloxane-derived hybrid materials for a high-refractive index LED encapsulant[J].Journal of Applied Polymer Science,2011(4):2478-2485. |
| [6] | JIN J G;YANG S C;BAE B S .Fabrication of a high thermal-stable methacrylate-silicate hybrid nanocomposite:hydrolytic versus non-hydrolytic sol-gel synthesis of methacryl-oligosiloxanes[J].Journal of Sol-Gel Science and Technology,2012,61(02):321-327. |
| [7] | FOWKES F M .Attractive forces at interfaces[J].Industrial and Engineering Chemistry,1964,56(12):40-52. |
| [8] | OWENS D K;WENDT R C .Estimation of surface free energy of polymers[J].Journal of Applied Polymer Science,1969,13(08):1741-1747. |
| [9] | Lin YH;Liao KH;Chou NK;Wang SS;Chu SH;Hsieh KH .UV-curable low-surface-energy fluorinated poly(urethane-acrylate)s for biomedical applications[J].European Polymer Journal,2008(9):2927-2937. |
| [10] | 曹冰;朱从善 .以DDS/TEOS复合醇盐通过sol-gel法制备无载体膜[J].中国科学(E辑),1998,28(05):394-399. |
| [11] | TASIC S;BOZIC B;DUNJIC B .Synthesis of new hyperbranched methane-acrylates and their evaluation in UV-curable coatings[J].Progress in organic Coatings,2004,51(04):320-327. |
| [12] | LIN D;KOU H;SHIW F et al.Photopolymerizaton of hyperbranched aliphatic acrylated poly(amide ester).Ⅱ.photopolymerization kinetics[J].Journal of Applied Polymer Science,2001,82(07):1637-1641. |
| [13] | Andre S.;Ratsimihety A.;Rousseau A.;Boutevin B.;Guida-Pietrasanta F. .Synthesis, characterization and thermal properties of SiH and SiOH terminated hybrid polysiloxanes[J].Macromolecular chemistry and physics,2000(17):2309-2315. |
| [14] | BAHLOUL-HOURIIER D;LATOURNERIE J;DEMPSEY P .Reaction pathways during the thermal conversion of polysiloxane precursors into oxycarbide ceramics[J].Journal of the European Ceramic Society,2004,5(01):1-71. |
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%