- Title
- Inter-particle distance and toughening mechanisms in particulate thermosetting composites
- Creator
- Kim, H. S.
- Relation
- Synthetic Polymer-Polymer Composites p. 65-115
- Publisher Link
- http://dx.doi.org/10.3139/9781569905258.003
- Publisher
- Hanser Publications
- Resource Type
- book chapter
- Date
- 2012
- Description
- Thermosets are an important family of engineering plastics, which have been regularly used as matrix materials for composites. They are, however, brittle compared to thermoplastics because of their cross-linked molecular structures, resulting in being prone to damage. Much effort has been made to improve such weakness particularly for epoxies using various particulate modifiers. Liquid rubber has been used as one of modifiers not only for thermosets but also for thermoplastics. Toughening mechanisms induced by rubber particles have been studied by numerous researchers since Sultan, and McGarry found its remarkable toughening effect. The deformation characteristics lending to toughening mechanisms include cavitation and shear banding, crack pinning, bridging, crack blunting, and so on. Pearson and Yee suggested with microscopic examination results that major toughening mechanisms contributing to the improvement of toughness are due to cavitation and shear deformation between rubber particles. Some variation of particulate modifiers has been reported for glass beads, hollow microspheres, thermoplastic particles, core-shell rubber, and aluminium particles to suit intended applications.
- Subject
- thermosets; toughening mechanisms; engineering plastics; thermoplastics
- Identifier
- http://hdl.handle.net/1959.13/1325484
- Identifier
- uon:25284
- Identifier
- ISBN:9781569905104
- Language
- eng
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