Functional Modification Effect of Epoxy Oligomers on the Structure and Properties of Epoxy Hydroxyurethane Polymers

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Composition</td><td class="align_center" colspan="2">Second moment of NMR absorption</td></tr><tr class="thead"><td class="align_center">Curing 7 d at 22°C</td><td class="align_center">Postcuring 10 h at 100°C</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">ED-20 + DETA</td><td class="align_center">4.50</td><td class="align_center">2.50</td></tr><tr><td class="align_left">ED-20 + DCC/ED-20 + DETA</td><td class="align_center">4.50</td><td class="align_center">5.20</td></tr><tr><td class="align_left">ED-20 + DCC/DEG-1 + DETA</td><td class="align_center">1.68</td><td class="align_center">2.70</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Influence of modifiers (20% OECC) and ED-20 + DETA composition curing at the second moment of NMR absorption.</div>

Advances in Materials Science and Engineering

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Table 4

Table 4: Functional Modification Effect of Epoxy Oligomers on the Structure and Properties of Epoxy Hydroxyurethane Polymers 