نتایج جستجو برای: dicyclopentadiene dcpd
تعداد نتایج: 206 فیلتر نتایج به سال:
Abstract: DCPD technique is powerful tool for quantitative NDE of cracks. The technique using four probes which are in close proximity to each other has been proposed for NDE of surface cracks; that is the closely coupled probes potential drop (CCPPD) technique. It has been shown that the sensitivity of the CCPPD technique is enhanced significantly in comparison with the usual method. The objec...
In this study, an injectable bone substitute (IBS) consisting of citric acid, chitosan, and hydroxyl propyl methyl cellulose (HPMC) as the liquid phase and tetra calcium phosphate (TTCP), dicalcium phosphate dihydrate (DCPD) and calcium sulfate dehydrate (CSD, CaSO4 x 2H2O) powders as the solid phase, were fabricated. Two groups were classified based on the percent of citric acid in the liquid ...
A molecular simulation study of the glass transition of cross-linkedpoly(dicyclopentadiene) networks
Cross-linked polymer networks are widely used as structural and protective materials, which require strength and toughness. Experiments have shown that cross-linked poly(dicyclopentadiene) (pDCPD) networks provide similar strength but superior fracture toughness relative to commonly-used network chemistries like epoxy. To better understand pDCPD, we use atomistic molecular dynamics to study the...
The application of closed-loop control to enforce a target front speed during frontal polymerization (FP) dicyclopentadiene under various initial and boundary conditions is demonstrated. Uncontrolled propagation FP reactions can result in quenching due heat loss, unstable propagation, material overheating, spontaneous pattern formation, heterogenous cured properties. These disadvantageous prope...
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