Influence of solvent composition and degree of reaction on the formation of surface micro-topography in a thermoset siloxane-urethane system was written by Majumdar, Partha;Webster, Dean C.. And the article was included in Polymer in 2006.Related Products of 763-69-9 The following contents are mentioned in the article:
The effects of solvent composition and degree of reaction prior to film formation leading to the formation of a biphasic micro-topog. surface in a crosslinked siloxane-urethane coating system were explored. For the solvent composition study, a D-optimal mixture design study was carried out using Me n-amyl ketone (MAK), toluene, Et 3-ethoxy propionate (EEP), Bu acetate (BA) and iso-Pr alc. (IPA) as solvents. The study revealed that the presence of slow evaporating solvents MAK, EEP and the absence of fast evaporating solvent IPA in the solvent composition with a minimal amount of BA favored formation of a structured surface. Control over the domain size could be obtained by varying the MAK:EEP ratio in solvent compositions having a fixed amount of BA. The effect of mixing time on the formation of surface domains was studied. At short mixing times (<2 h) and long mixing times (>7 h), no surface phase separation is observed, while at intermediate times a window’ was found where surface microdomains of similar size are generated. Doubling the level of catalyst halves the mixing time required to generate surfaces with microdomains. SEM studies with energy dispersive x-ray mapping and dynamic mech. anal. (DMA) were done in order to understand the development of the phases in the PDMS-polyurethane system. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Related Products of 763-69-9).
Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Related Products of 763-69-9
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics