![]() A cured thermoset coating prepared from the curable epoxy composition of claim 1.ġ2. The curable epoxy composition of claim 1, further including an extender, a pigment, a flexibilizing agent, a processing aide or a combination thereof.ġ1. The curable epoxy composition of claim 1, wherein the curable epoxy composition does not include a solvent.ġ0. The curable epoxy composition of claim 1, where the CHDM epoxy resin has an epoxide equivalent weight (EEW) in a range from 128 to 170.ĩ. The curable epoxy composition of claim 1, where the curing agent is selected from the group consisting of an ethylene amine, a cycloaliphatic amine, a Mannich base, a polyamide, a phenalkamine or a combination thereof.Ĩ. The composition of claim 1, wherein the at least one other epoxy resin other than the CHDM epoxy resin is selected from the group consisting of a bisphenol F-based epoxy resin, an epoxy novolac, a bisphenol A based epoxy resin, a dimer acid or fatty acid modified bisphenol A epoxy or a combination thereof.ħ. The curable epoxy composition of claim 3, 4, where the CSR particles are prepared by: i) carrying out an emulsion polymerization of monomers in an aqueous dispersion medium to create the CSR particles ii) coagulating the CSR particles to form a slurry iii) dewatering the slurry to form dewatered CSR particles and iv) drying the dewatered CSR particles to provide the CSR particles.Ħ. The curable epoxy composition of claim 1, where the CSR particles have a shell formed from an acrylic polymer, an acrylic copolymer or a combination thereof.ĥ. The curable epoxy composition of claim 1, where the CSR particles have a core formed from monomers selected from the group consisting of methylmethacrylate butadiene styrene monomers, methacrylate-acrylonitrile-butadiene-styrene monomers or a combination thereof.Ĥ. % is based on the total weight of the curable epoxy composition.ģ. The curable epoxy composition of claim 1, where the curable epoxy composition includes 5 weight percent (wt. A curable epoxy composition, comprising: 1,4-cyclohexanedimethanol (CHDM) epoxy resin at least one other epoxy resin other than the CHDM epoxy resin a core shell rubber (CSR) particles and a curing agent.Ģ. Retroreflective laminate comprising a tear resistant filmġ. Mildew-resistant sealing compound formulations containing a benzothiophene-2-cy-clohexylcarboxamide-s,s-dioxide Pressure Sensitive Adhesive Composition and Pressure Sensitive Adhesive Tape Post-addition of white minerals for modifications of optical film properties While a large toughening effect was not seen in this study, the mechanisms analyzed herein will likely be of use for further material investigations at cryogenic temperatures.Polyalkenoate Cements Having Improved PropertiesĬOATING MATERIALS AND LOW HAZE HEAT REJECTION COMPOSITES It was found that an increase in shear deformation and void growth likely accounted for the higher impact strength at 5 wt% CSR loading at RT while the thermal stress fields due to the coefficient of thermal expansion mismatch between rubber and epoxy and an increase in secondary cracking is likely responsible for the higher impact strength at 5 wt% tested at LN2 temperature. The CSR particles debonded in front of the crack tip, inducing voids into the matrix. The impact strength decreased from neat to 3 wt% but increased from neat to 5 wt% at RT and LN2 temperature, with a higher impact strength at RT at all CSR loadings. Overall, the CSR had little effect on the tensile properties at RT and LN2 temperature. In this study, the deformation mechanisms of a DGEBA epoxy modified with MX960 core-shell rubber (CSR) particles were investigated under quasi-static tensile and impact loads at room temperature (RT) and liquid nitrogen (LN 2) temperature. Second-phase additives have been effective in increasing the toughness of epoxies at room temperature however, the mechanisms at low temperatures are still not understood. Epoxy polymers, although often used in fiber-reinforced polymeric composites, have an inherent low toughness that further decreases with decreasing temperatures. ![]() The industrial demand for high strength-to-weight ratio materials is increasing due to the need for high performance components.
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