Thermally induced structural evolution of methylsilicone xerogel monoliths reinforced by titania nanoparticles
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- 作者：Huifang Xu (1)
Li Liu (1)
Haijiao Zhang (2)
Qiuyang Chen (1)
Wei Dong (1)
Yudong Huang (1)
Haifeng Guo (3) - 刊名：Journal of Materials Science
- 出版年：2014
- 出版时间：August 2014
- 年：2014
- 卷：49
- 期：16
- 页码：5757-5765
- 全文大小：
- 参考文献：1. Yang ZL, Niu ZW, Cao XY, Yang ZZ, Lu YF, Hu ZB, Han CC (2003) Template synthesis of uniform 1D mesostructured silica materials and their arrays in anodic alumina membranes. Angew Chem Int Ed 42:4201-203 CrossRef
2. Lin KF, Lebedev OI, Tendeloo GV, Jacobs PA, Pescarmona PP (2010) Titanosilicate beads with hierarchical porosity:synthesis and application as epoxidation catalysts. Chem Eur J 16:13509-3518 CrossRef
3. Li XY, Chen LH, Li Y, Rooke JC, Deng Z, Hu ZY, Liu J, Krief A, Yang XY, Su BL (2012) Tuning the structure of a hierarchically porous ZnO2 for dye molecule. Micropor Mesopor Mater 152:110-21 CrossRef
4. Brinker CJ, Scherer GW (1990) Sol–gel Science. Academic Press, New York
5. Bommel MJ, Haan AB (1994) Drying of silica gels with supercritical carbon dioxide. J Mater Sci 29:943-48 CrossRef
6. Harreld JH, Ebina T, Tsubo N, Stucky G (2002) Manipulation of pore size distributions in silica and ormosil gels dried under ambient pressure conditions. J Non Cryst Solids 298(2):241-51 CrossRef
7. Amlouk A, MirL El, Kraiem S, Saadoun M, Alaya S, Pierre AC (2008) Luminescence of TiO2:Pr nanoparticles incorporated in silica aerogel. Mater Sci Eng B 146:74-9 CrossRef
8. Rao AV, Pajonk GM, Parvathy NN (1994) Effect of solvents and catalysts on monolithicity and physical properties of silica aerogels. J Mater Sci 29:1807-817 CrossRef
9. Tang Q, Xu Y, Wu D, Sun Y (2006) A study of carboxylic-modified mesoporous silica in controlled delivery for drug famotidine. J Solid State Chem 179(5):1513-520 CrossRef
10. Rao AV, Hegde ND, Hirashima H (2007) Absorption and desorption of organic liquids in elastic superhydrophobic silica aerogels. J Colloid Interface Sci 305(1):124-32 CrossRef
11. Schmidt M, Schwertfeger F (1998) Applications for silica aerogel products. J Non Cryst Solids 225:364-68 CrossRef
12. Wei TY, Lu SY, Chang YC (2009) A new class of opacified monolithic aerogels of ultralow high-temperature thermal conductivities. J Phys Chem C 113:7424 CrossRef
13. Hwang S, Hyun S (2004) Capacitance control of carbon aerogel electrodes. J Non Cryst Solids 347:238-45 CrossRef
14. Li W, Pr?bstle H, Fricke J (2003) Electrochemical behavior of mixed CmRF based carbon aerogels as electrode materials for supercapacitors. J Non Cryst Solids 325:1- CrossRef
15. Sarawade PB, Kim JK, Hilonga A, Quang DV, Kim HT (2011) Synthesis of hydrophilic and hydrophobic xerogels with superior properties using sodium silicate. Micropor Mesopor Mater 139:138-47 CrossRef
16. Rao AV, Bhagat SD, Hirashima H, Pajonk GM (2006) Synthesis of flexible silica aerogels using methyltrimethoxysilane (MTMS) precursor. J Colloid Interface Sci 300:279-85 CrossRef
17. Janamori K, Aizawa M, Nakanishi K, Hanada T (2007) New transparent methylsilsesquioxane aerogels and xerogels with improved mechanical properties. Adv Mater 19:1589-593 CrossRef
18. Rao AV, Kalesh RR (2003) Hydrophobicity and physical properties of TEOS based silica aerogels using phenyltriethoxysilane as a synthesis component. J Mater Sci 38:4407-413 CrossRef
19. Jovanovic JD, Govedarica MN, Dvornic PR, Popovic IG (1998) The thermogravimetric analysis of some polysiloxanes. Polym Degrad Stab 61:87-3 CrossRef
20. Xu HF, Huang YD, Liu L, Song JW, Wang CQ, Zhang LC (2010) Superhydrophobic and porous methylsilicone monoliths prepared by one-step ammonia-catalyzed gelation and ambient pressure drying. J Non Cryst Solids 356:1837-841 CrossRef
21. Grassie N, Murray EJ, Holmes PA (1984) The thermal degradation of poly(-(D)-β-hydroxybutyric acid): part 2-Changes in molecular weight. Polym Degrad Stab 6:95-03 CrossRef
22. Liu YR, Huang YD, Liu L (2007) Thermal stability of POSS/methylsilicone nanocomposites. Compos Sci Technol 67:2864-876 CrossRef
23. Min CY, Huang YD, Liu L (2007) Effect of nanosized ferric oxide on the thermostability of methylsilicone resin. J Mater Sci 42:8695-699 CrossRef
24. Sim LC, Ramanan SR, Ismail H, Seetharamu KN, Goh TJ (2005) Thermal characterization of Al2O3 and ZnO reinforced silicone rubber as thermal pads for heat dissipation purposes. Thermochim Acta 430:155-65 CrossRef
25. Xu HF, Zhang CH, Zhang HJ, Song JW, Huang YD, Lv T (2011) The preparation and structural characterization of ambient-dried porous methylsilicone matrix doped with SiO2 powder. J Non Cryst Solids 357:2822-825 CrossRef
26. Xu HF, Huang YD, Zhang HJ, Chen QY, Yan GW, Liu L (2012) Preparation and characterization of monolithic methylsilicone xerogels doped with liquid-phase synthesized TiO2. J Non Cryst Solids 358:2922-926 CrossRef
27. Yang SF, Liu YH, Guo YP, Zhao JZ, Xu HF, Wang ZC (2002) Preparation of rutile titania nanocrystals by liquid method at room temperature. Mater Chem Phys 77:501-06 CrossRef
28. Yu JC, Yu J, Zhao J (2002) Enhanced photocatalytic activity of mesoporous and ordinary TiO2 thin films by sulfuric acid treatment. Appl Catal B Environ 36:31-3 CrossRef
29. Jung HS, Shin H, Kim J, Kim JY, Hong KS (2004) In situ observation of the stability of anatase nanoparticles and their transformation to rutile in an acidic solution. Langmuir 20:11732-1737 CrossRef
30. Yin H, Wada Y, Kitamura T, Kambe S, Murasawa S, Mori H, Sakata T, Yanagida S (2001) Hydrothermal synthesis of nanosized anatase and rutile TiO2 using amorphous phase TiO2. J Mater Chem 11:1694-703 CrossRef
31. LiuYR HuangYD, Liu L (2006) Effect of trisilanolisobutyl-POSS on thermal stability of methylsilicone resin. Polym Degrad Stab 91:2731-738 CrossRef
32. Thomas TH, Kendrick TC (1969) Thermal analysis of polydimethylsiloxanes. I. Thermal degradation in controlled atmospheres. J Polym Sci Part A 2 7:537-49 CrossRef
33. Romo-Uribe A, Mather PT, Haddad TS, Lichtenhan JD (1998) Viscoelastic and morphological behavior of hybrid styryl-based polyhedral oligomeric silsesquioxane (POSS) copolymers. J Polym Sci Part B 36(11):1857-872 CrossRef
34. Ramzi BH, Sami B, Marie-Christine BS, Makki A, Mohamed NB (2008) Adsorption of silane onto cellulose fibers. II. The effect of pH on silane hydrolysis, condensation, and adsorption behavior. J Appl Polym Sci 108:1958-968 CrossRef - 作者单位：Huifang Xu (1)
Li Liu (1)
Haijiao Zhang (2)
Qiuyang Chen (1)
Wei Dong (1)
Yudong Huang (1)
Haifeng Guo (3)
1. School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China
2. Engineering Institute of Graphite New Materials, Heilongjiang University of Science and Technology, Harbin, 150027, China
3. PetroChina pipeline R&D center, Langfang, Hebei, 065000, China - ISSN：1573-4803
文摘
Thermally stable methylsilicone xerogel monoliths were prepared by sol–gel technology with methylsilicone oligomer as precursor and titania nanoparticles as filler. The effects of titania doping and heating temperature on the structure, morphology, and hydrophobic property of xerogels were investigated. The structural evolution under thermal treatment showed that the blank methylsilicone monolith was crushed after 300?°C treatment, but the samples reinforced by titania could retain the intact structure after 500?°C treatment. Thermogravimetric analysis results certified that the thermal degradation of methylsilicone was resisted due to incorporation of TiO2. Fourier transform infrared spectra and 29Si nuclear magnetic resonance results showed that Si–CH3 unit still existed in the reinforced samples, compared with the complete transformation of Si–C to Si–O in the blank methylsilicone after 500?°C treatment. Thus, the hydrophobic property was preserved and certified by measurement of contact angle.