Synthesis and Properties of Fluorinated Biphenyl-Type Epoxy Resin
Ding, J. P.; Tao, Z. Q.; Fan, L.; Yang, S. Y.
AbstractA novel fluorinated biphenyl-type epoxy resin (FBE) was synthesized by epoxidation of a fluorinated biphenyl-type phenolic resin, which was prepared by the condensation of 3-trifluoromethylphenol and 4,4'-bismethoxymethylbiphenyl catalyzed in the presence of strong Lewis acid. Resin blends mixed by FBE with phenolic resin as curing agent showed low melt viscosity (1.3-2.5 Pa s) at 120-122 degrees C. Experimental results indicated that the cured fluorinated epoxy resins possess good thermal stability with 50% weight loss under 409-415 degrees C, high glass-transition temperature of 139-151 degrees C (determined by dynamic mechanical analysis), and outstanding mechanical properties with flexural strength of 117-121 MPa as well as tensile strength of 71-72 MPa. The thermally cured fluorinated biphenyl-type epoxy resin also showed good electrical insulation properties with volume resistivity of 0.5-0.8 x 10(17) Omega cm and surface resistivity of 0.8-4.6 x 10(16) Omega. The measured dielectric constants at 1 MHz were in the range of 3.8-4.1 and the measured dielectric dissipation factors (tan delta) were in the range of 3.6-3.8 x 10(-3). It was found that the fluorinated epoxy resins have improved dielectric properties, lower moisture adsorption, as well as better flame-retardant properties compared with the corresponding commercial biphenyl-type epoxy resins. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 1429-1437, 2009
KeywordEpoxy Dielectric Properties Water Absorption Flame Retardancy
Indexed BySCI
WOS IDWOS:000266891100009
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorYang, S. Y.
AffiliationChinese Acad Sci, Lab Adv Polymer Mat, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Ding, J. P.,Tao, Z. Q.,Fan, L.,et al. Synthesis and Properties of Fluorinated Biphenyl-Type Epoxy Resin[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2009,113(3):1429-1437.
APA Ding, J. P.,Tao, Z. Q.,Fan, L.,&Yang, S. Y..(2009).Synthesis and Properties of Fluorinated Biphenyl-Type Epoxy Resin.JOURNAL OF APPLIED POLYMER SCIENCE,113(3),1429-1437.
MLA Ding, J. P.,et al."Synthesis and Properties of Fluorinated Biphenyl-Type Epoxy Resin".JOURNAL OF APPLIED POLYMER SCIENCE 113.3(2009):1429-1437.
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