Amine-terminated poly(ethylene glycol) benzoate (ATPEGB)-modified epoxy: Mechanical and thermal properties

被引：0
|
作者：
Samanta, B.C. [1 ]
Maity, T. [1 ]
Dalai, S. [1 ]
Banthia, A.K. [2 ]
机构：
[1] Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore-721102, India
[2] Materials Science Centre, Indian Institute of Technology, Kharagpur-721302, India
来源：
Journal of Adhesion Science and Technology | 2006年 / 20卷 / 06期
关键词：
Amine-terminated poly(ethylene glycol) benzoate (ATPEGB); synthesized from the esterification reaction of poly(ethylene glycol) (PEG) with 4-amino benzoic acid; was used to modify the toughness of bisphenol-A diglycidyl ether epoxy resin (DGEBA) cured with room temperature curing agent; triethylene tetramine. ATPEGB was characterized by FT-IR and H-NMR spectroscopies; viscosity measurements; solubility parameter calculation and molecular weight determination with gel-permeation chromatography (GPC). The modified epoxy network was evaluated for its impact; adhesive; tensile; flexural and thermal properties. Improvement in mechanical properties depends upon the concentration of the ATPEGB modifier. The optimum properties were obtained at 12.5 phr (parts per hundred parts of resin) concentration of the modifier. The ATPEGB modified cured epoxy was thermally stable up to 315°C. The morphology of cured epoxy was also analyzed by scanning electron microscopy (SEM) investigation of fracture surfaces. © VSP 2006;
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页码：491 / 502
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