A syntactic foam is a composite material that is made by filling a polymer, ceramic, or metal with pre-formed hollow glass or ceramic spheres called micro balloons. The term ‘syntactic’ refers to the ordered arrangement of the spheres, and the term ‘foam’ refers to the closed cellular structure. Syntactic Foam Properties The hollow spheres within syntactic foam provide most of the materials beneficial properties. They have high specific strength, a low coefficient of thermal expansion, [...]
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An epoxy is a thermosetting polymer that possesses unique mechanical and resistance properties. The term epoxy can be used for the cured end product or any of the basic components within epoxy resins. An epoxy resin is a class of thermoset polymer made from a monomer that contains at least two epoxide groups. Epoxy resins can be homopolymerized or cross-linked into a three dimensional network using curatives. A broad assortment of curatives are available for [...]
A polymer is defined as a large network of molecules that consist of many repeat units. A polyimide is a specific type of polymer, consisting of imide monomers. Polyimides are highly desirable for their heat resistance, mechanical strength, and insulative properties. What is an Imide? To obtain a good understanding of what a polyimide is, first we have to understand the chemistry within it. An imide is a functional group consisting of two acyl groups [...]