Rheology and Cure Properties

ElFect of the processing parameters, including mixing mode, shear level, organoclay content, and temperature, on the morphology of UP-MMT hybrids were investigated by Narkis and coworkers [14]. They studied two nanocomposite 

The rheology and flow properties of the organoclay suspension in UP resin were investigated by Rajabian and Beheshty [15]. MMT with dimethyl dehydrogenated 

Research on the crosslinking of UP resins in the presence of organically modified clays was conducted by Xu and Lee. They have found that by adding 1-3 wt% organoclay to UP-styrene-poly(vinyl acetate) system cured at room temperature, the volume shrinkage of the crosslinked polymer could be eliminated [16]. In another study Xu and Lee investigated the effect of nanoclay on the cure kinetics of UP resin and the mechanical properties of the resulting UP nanocomposites [17]. 

Narkis and coworkers investigated the curing of styrene free UP prepolymer (aUcyd) in the presence of organoday [19]. Depending on the peroxide initiator content either an exfohated or a combined intercalated/exfoliated structure was obtained. 

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Many environmental factors such as moisture and temperature determine the long term adhesion of polysulfide sealants. It is necessary that the substrates be properly prepared surfaces must be clean and structurally sound. To wet the surface and permit the adhesion additives to migrate to the surface, the sealant must have the necessary rheology and cure properties. 

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