Fourier transform infrared (FTIR) spectroscopy is used to determine the cure rate of an epoxy resin consisting of Tetraglycidyl-4,4-diaminodiphenyl methane (TGDDM) and diaminodiphenylsulfone (DDS). Cure rates at 120 and 160掳C are shown to increase noticeably when 1% BF3-MEA is added to ...
不同于甲醇,如果将DGF/MBCA在一系列其他有机溶剂和酸性或碱性水环境中浸泡1周,仍能稳定存在,证实了其具有良好的稳定性(Fig. 2G,H)。 Fig. 2. Investigation of the methanolysis behavior of synthesized epoxy resin materials, and c...
epoxy resin [ə′päk·sē ′rez·ən] (organic chemistry) A polyether resin formed originally by the polymerization of bisphenol A and epichlorohydrin, having high strength, and low shrinkage during curing; used as a coating, adhesive, casting, or foam. ...
The synthesized epoxy resin were characterized by measurement of physical properties like epoxy equivalent, viscosity, hydroxyl value, saponification value, acid value, etc., and spectroscopic techniques like FTIR and 1H NMR. High thermostability with initial decompositions temperature of 225鈥 265掳C ...
(PBA)as soft segments respectively.The structure and properties of the samples with different soft segments were investigated by FTIR,DMA and AFM.The results revealed that the LIPN had formed and with no chemical bond between PU and EP.PU and EP had higher interpenetrating properties in LIPN ...
Epoxy resin has been wide applied in aerospace, superconducting industries because of the high electrical insulation, excellent adhesive properties and great chemical resistance. In this paper, epoxy/AlN composites were prepared by changing the content of the flexible amine (D-230) and the diethyl to...
The structure of VFD was characterized by Fourier transform infrared (FTIR) spectra and nuclear magnetic resonance (NMR). The addition of VFD accelerated the crosslinking reaction of epoxy system and improved the flame retardance of EP. With VFD content was 7.5 wt% (only 0.52 wt% phosphorus ...
星形环氧树脂3) branched polyether epoxy resin 支化聚醚型环氧树脂 1. A novel branched polyether epoxy resin was synthesiz ed via a end-group modification method. 通过端基转换的方法合成了一种新型支化聚醚型环氧树脂 ,通过FTIR证实了环氧基团的存在 ,用化学分析法测定了环氧值。4...
The latter has become an important research subject because the flame-retardant chemically incorporated into the epoxy resin is more stable and effective [11]. Moreover, comparing with addition of large amount of flame-retardants, the introduction of small amount of reactive flame-retardants can ...
(AVATAR 370). The FTIR spectra of microcapsule samples were compared with the spectra of shell materials, i.e. epoxy resin cured with EDA and the spectra of core materials, i.e. EDA with a small account of water. The activity analysis of core material was investigated by using DSC at a...