Conference proceeding
Toughening of vinyl ester systems
47th International SAMPE Symposium and Exhibition 2002; Long Beach, California; USA; 12-16 May 2002, pp.1339-1353
12 May 2002
Abstract
Vinyl esters (VE) represent a major class of resin systems for composite applications where low-cost processing methods such as Vacuum Assisted Resin Transfer Molding (VARTM) are preferred. The reason for this is that vinyl ester resins possess low viscosity at ambient temperature necessary for facile preform impregnation and also possess adequate material properties. However, one of the major deficiencies of VE resins is low fracture toughness when compared to prepreg epoxy resin systems. Toughening vinyl esters is complicated by the need to maintain low viscosity. In this paper, we present results of our efforts to toughen vinyl ester resins while maintaining adequate processing viscosity and minimal reduction in Tg and modulus. Several techniques will be discussed including (a) modification of network structure via manipulation of vinyl ester molecular weight and styrene content, (b) use of reactive and non-reactive rubber modifiers designed to phase separate upon cure, and (c) use of nanostructured thermoplastic fiber mats for interlaminar toughening.
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Details
- Title
- Toughening of vinyl ester systems
- Creators
- E RobinetteS ZiaeeG Palmese
- Publication Details
- 47th International SAMPE Symposium and Exhibition 2002; Long Beach, California; USA; 12-16 May 2002, pp.1339-1353
- Conference
- 47th International SAMPE Symposium and Exhibition 2002, 47th (Long Beach, California, United States, 12 May 2002 - 16 May 2002)
- Number of pages
- 1
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Identifiers
- 991019170333004721