Results 191 to 200 of about 1,782 (236)
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Effect of molding parameters on compression molded sheet molding compounds parts
Journal of Materials Processing Technology, 1997Abstract A detailed experimental study was carried out to determine the effects of molding variables on the physical and mechanical properties of compression molded SMC (sheet molding compounds) parts. Simple compression tests using grease oil and mylar sheet as a lubricant at various temperatures were examined in characterizing the complex effect of
Kim, KT, Jeong, JH, Im, YT Im, Yong-Taek
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Elastomer-Modified Sheet Molding Compounds
Polymer-Plastics Technology and Engineering, 1984Abstract For several years, elastomeric sheet molding compound (SMC) additives have been considered for automotive exterior panel applications where shrink control, improved surface appearance, and impact improvement are desired. Shell has designed a special styrene-butadiene (S-B) copolymer system, Kraton GX-1855, for this application.
C. L. Willis +2 more
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Liquid absorption of a sheet molding compound
Polymer Composites, 1981AbstractThe absorption of water, isooctane, methanol and ethanol into a sheet molding compound (SMC‐R30) at room temperature is studied. The absorption behaviors are shown to be Fickian, with constant diffusion coefficients. Desorption of methanol and ethanol soaked specimens causes considerable surface cracking.
S. V. Hoa, P. Ouellette
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Curing of compression molded sheet molding compound
Polymer Engineering & Science, 1981AbstractA recently developed kinetic model has been applied here to describe the polyester‐styrene addition copolymerization. By assuming that the termination step is negligible and the reaction rate between inhibitor and initiator free radical is much, faster than any other reactions, the kinetic mechanism can be simplified to be expressed as a single
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Kinematics of flow in sheet molding compounds
Polymer Composites, 1985AbstractExperiments utilizing charges constructed of black and white sheet molding compound (SMC) reveal the basic kinematic mechanisms controlling the flow of the fiber‐filled compound in compression molding. The experimental results show that SMC deforms in uniform extension within individual charge layers, with slip occurring at the mold surface and,
M. R. Barone, D. A. Caulk
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Joining strength of sheet molding compounds
Polymer Composites, 1982AbstractBonding and bolting strengths of a sheet molding compound (SMC‐R30) are investigated. Epoxy adhesives are found to give good bonding strength. Surface pretreatment does not affect bond strength. Artificial weathering has practically no effect upon bond strength.
S. V. Hoa, D. Feldman
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1995
Abstract Sheet molding compounds (SMCs) refers to both material and process for producing glass-fiber-reinforced polyester resin items. This article discusses the material components incorporated into the resin paste for desirable processing and molding characteristics and optimum physical and mechanical properties, including catalyst ...
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Abstract Sheet molding compounds (SMCs) refers to both material and process for producing glass-fiber-reinforced polyester resin items. This article discusses the material components incorporated into the resin paste for desirable processing and molding characteristics and optimum physical and mechanical properties, including catalyst ...
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Bonding Strength of Sheet Molding Compounds
Polymer-Plastics Technology and Engineering, 1984Abstract One of the important problems in the application of sheet molding compounds (SMC) in automobiles is how to join different structures together. In a previ- ous paper [1] a comparison between (adhesive) bonding strength and (metal) bolting strength was studied. It was found that bolting gave better joining strength than bonding. However, bolting
D. Feldman, S. V. Hoa, E. Coriaty
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Advances in a Structural Sheet Molding Compound
Journal of Composites Technology and Research, 1982Recent work on a structural sheet molding compound with more than 60% by weight reinforcements of E-glass and S-2 Glass® in a low-profile polyester resin system demonstrates high-performance capability and versatility that permit tailoring of the composite properties to a specific application.
WW Feng +5 more
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Processing‐property relationships in compression molding of sheet molding compounds
Polymer Composites, 1985AbstractAn experimental investigation was conducted into establishing relationships between the processing variables and the mechanical properties of compression‐molded parts of sheet molding compounds (SMC). Emphasis was placed on investigating the effects on the tensile properties, impact strength, and dynamic mechanical properties of composite ...
Sang Yeol Oh, Chang Dae Han
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