2013
DOI: 10.1002/app.39722
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Influence of partial cross‐linking degree on basic physical properties of RTM6 epoxy resin

Abstract: Thermo-physical and mechanical properties of partially and completely cross-linked RTM6 epoxy resin samples in the glassy state have been investigated. A significant dependence of glass transition temperature, density, and modulus on the curing history and the curing degree is found. Density and modulus decrease with increasing curing degree and show a step-like irregularity in the so called transition region, which is related to the transition from rubber to glassy state during cross-linking and the starting … Show more

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Cited by 29 publications
(45 citation statements)
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“…For 80 % cross-linked resin plates this process uses curing at 120 • C for 30 min followed by a post- Fig. 4 Schematic diagram of the electromagnetic sensor plates arrangement and RTM6 specimen with parameters cure at 135 • C for 140 min, with heating and cooling rates of 2 K/min [33]. The degree of cross-linking was determined by using differential scanning calorimetry (DSC) [33].…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…For 80 % cross-linked resin plates this process uses curing at 120 • C for 30 min followed by a post- Fig. 4 Schematic diagram of the electromagnetic sensor plates arrangement and RTM6 specimen with parameters cure at 135 • C for 140 min, with heating and cooling rates of 2 K/min [33]. The degree of cross-linking was determined by using differential scanning calorimetry (DSC) [33].…”
Section: Methodsmentioning
confidence: 99%
“…4 Schematic diagram of the electromagnetic sensor plates arrangement and RTM6 specimen with parameters cure at 135 • C for 140 min, with heating and cooling rates of 2 K/min [33]. The degree of cross-linking was determined by using differential scanning calorimetry (DSC) [33]. Then, the plates were cut to beams with lengths of 25 mm and widths of b = 5 mm.…”
Section: Methodsmentioning
confidence: 99%
“…Of particular interest are initial curing degrees within the so‐called transition region. In this region an abrupt increase of density and modulus of the freshly cured epoxy resin occurs . The influence of physical aging on this discontinuity is addressed.…”
Section: Introductionmentioning
confidence: 98%
“…Moisture absorption results in a degradation of the mechanical properties of epoxy resin systems . Surface postcuring effects for RTM6 are expected to result in a decrease of density and modulus . Secondly, the presence of the polymer–air interface results in a changed molecular mobility and configuration of the polymer chains.…”
Section: Introductionmentioning
confidence: 99%
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