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材料工程  2005 

倍半硅氧烷改性E-51/DDS树脂体系的性能研究

Keywords: 环氧,倍半硅氧烷,固化

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Abstract:

用自制的γ-(2,3-环氧丙氧)丙基倍半硅氧烷为改性剂,对双酚A缩水甘油醚型环氧树脂E-51进行改性,两者配比为60/40(质量比),选用等当量的4,4′-二氨基二苯砜(DDS)为固化剂,形成环氧-倍半硅氧烷杂化材料。通过凝胶特性曲线、傅立叶变换红外光谱(FTIR)以及差示扫描量热方法(DSC)研究了该体系的固化反应特性及动力学问题;初步研究了固化体系的力学性能以及热性能。结果表明,该体系具有较好的工艺性,其固化反应的活化能是48.7kJ/mol,体系的热变形温度(HDT)达到200℃,热分解温度达到442℃,玻璃化转变温度(Tg)达到245℃,比相同条件下的E-51/DDS体系分别高出了31,58,20℃,体系在800℃时热残余量为25%,同时其弯曲强度和冲击强度基本保持不变。

References

[1]  BANLEY R H, ITOH M, SAKAKIBARA A, et al. Silsesquioxa-nes[J]. Chem Rev,1995, 95:1409-1430.
[2]  JANG J, BAE J, KANG D. Synthesis and characterization of thebiodegradable copolymers from succinic acid and adipic acid with 1,4-butanediol[J]. J Appl Polym Sci, 2002,82:2310-2318.
[3]  FEHER F J, WELLER K J. Polyhedral aluminosilsesquioxanes as models for aluminosilicates:unique synthesis of anionic aluminum/silicon/oxygen frameworks[J]. Organometallics, 1990, 9:2638-2640.
[4]  GIANNELIS E P, SHAH D, SCHMIDT D. New advances in polymer/layered silicate nanocomposites[J]. Curr Opin Solid State Mater Sci, 2002, 6:205-212.
[5]  PAOLO P PESCARMONA, ANTHONY F MASTERS. Osmium silsesquioxane as model compound and homogeneous catalyst for the dihydroxylation of alkenes[J]. Journal of Molecular Catalysis A:Chemical, 2004, 220:37-42.
[6]  MURUGAVEL R, VOIGT A. Hetero-and metallasiloxanes derived from silanediols, disilanols, silanetriols, and trisilanols[J]. Chem Rev, 1996, 96:2205-2236.
[7]  TEGOU E, BELLAS V. Polyhedral oligomeric silsesquioxane(POSS) acrylate copolymers for microfabrication:properties and formulation of resist materials[J]. Microelectronic Engineering, 2004, 73-74:238-243.
[8]  LICHTENHAN J D, YOSHIKO A OTONARI. Linear hybrid polymer building blocks:methacrylate-functionalized polyhedral oligomeric silsesquioxane monomers and polymers[J]. Macromolecules, 1995, 28:8435-8437.

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