Morphology Control in a Dual-Cure System for Potential Applications in Additive Manufacturing.

ABSTRACT: The polymerisation, morphology and mechanical properties of a two-component in-situ reacting system consisting of a rubbery dimethacrylate and a rigid epoxy polymer were investigated. The methacrylate component of the mixture was photocured using UV light exposure and, in a second curing process, the mixture was thermally postcured. The polymers formed a partially miscible system with two glass transition temperature (Tg) peaks measured using dynamic mechanical thermal analysis (DMTA). The composition and relative rate of reaction of the two orthogonal polymerisations influenced the extent of miscibility of the two polymer-rich phases and the samples were transparent, indicating that the two phases were finely dispersed. The addition of a glycidyl methacrylate compatibiliser further increa

SUBMITTER: Campbell JA 

PROVIDER: S-EPMC6473805 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature