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Polymers and Polymer Composites

THE CURE AND THERMAL BEHAVIOUR OF MG(OH)2/EPOXY RESIN/DEEA NANOCOMPOSITES PREPARED BY A NOVEL METHOD. BRIEF COMMUNICATION

August 1, 2005 By: Cheng Yiyun; He Pingsheng; Cui Ronghui Research article

Title: THE CURE AND THERMAL BEHAVIOUR OF MG(OH)2/EPOXY RESIN/DEEA NANOCOMPOSITES PREPARED BY A NOVEL METHOD. BRIEF COMMUNICATION
Page Range: p.835-838
Author(s): Cheng Yiyun; He Pingsheng; Cui Ronghui
File size: 111K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 13
Issue No: No. 8

Abstract
Magnesium hydroxide is a smoke-reducing and non-toxic additive that has been extensively used in halogen-free flame retardant polymeric materials. However, it’s low flame retardant efficiency and the very high loadings that are consequently required when used in its ordinary form, lower the mechanical properties of a flame-retarded polymeric composition. It has been reported that nanosized magnesium hydroxide/polymeric compositions have the potential to solve such problems due to the mechanically reinforcing and flame retardant functions of nanosized composite materials. This study reports on the cure and thermal behaviour of these epoxy resin/magnesium hydroxide composites. The results of tests indicate enhanced thermal stability. This is claimed to be partly attributable to the prevention of out-diffusion of the volatile gas from the thermally decomposed particles, because magnesium hydroxide nanoparticles, when well-dispersed in epoxy networks, act as gas barriers, reducing the permeability of the volatile gas. 10 refs.

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