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Progress resin / hollow glass microsphere composite foam

2015-05-15 10:27:31

Syntactic foam appeared in the 1960s, due to enhancement of hollow microspheres in the matrix are well known. Since the hollow microspheres in the material and lead material filling the cell appear, substantially no chemical foaming resin, so that the composite foam is a physical foam, syntactic foam density in the range of relatively large span. Syntactic foam matrix may be a polymer, metal or ceramic.

Hollow glass beads filled matrix resin prepared composite foam belong to a closed cell structure, compared to the open cell structure, which has higher strength and lower water absorption. Matrix resins used in the distribution of density between 1.0 ~ 1.2g / cm3, while lower density filled hollow glass microspheres, typically 0.1 ~ 0.6g / cm3, composite foam density plays a decisive role, but complex It will reduce the strength of the foam density material adverse effect, so the need to control the loading of hollow glass microspheres to balance density and strength of the material.

1969 I.Resuick other first filled with hollow glass beads bisphenol A type epoxy syntactic foam was prepared to study the influence of the material curing agent compression performance. M.Palumbo etc. The effect of the content of hollow glass microspheres compression performance of the material, and the compression elastic modulus of the material was modeling analysis.JRMAlmerda and other hollow glass microspheres were sieved particle size, the influence of the particle size of the material compression performance, found that the smaller the particle size of the hollow glass beads, beads and material strength is greater. LJGibson and other preparation techniques, performance testing of composite foam detailed study, and study the mechanical properties, thermal properties, electrical properties and acoustic properties of the material and the like.EMWouterson such as the use of epoxy resin as matrix, K15, K46 hollow glass microspheres and BJO-093 phenolic resin microspheres prepared by filling density of 0.8g / cm3, a compressive strength of 54MPa of syntactic foam, was found with microspheres volume fraction increased from 0% to 50%, the stretched composite foam strong, flexural strength and flexural modulus are lower, and the effect of microstructure on the properties of the foam.N.Gupta such as the use of hollow glass microspheres filled vinyl ester-based system, a composite foam, the tensile and compression tests found that the modulus and strength of the base material is quite pure, but the strength and modulus of the composite foam is higher pure substrate.


This article from the China National Knowledge