Polymer characteristics and fracture morphology of radiation-polymerized styrene-impregnated mortar

Mechanical and durability properties and the fracture morphology of polystyrene‐impregnated mortar composites prepared by impregnation of styrene and its in situ polymerization by gamma radiation have been studied. Variation of flexural strength of the composites, percent extractable polystyrene, an...

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Bibliographic Details
Published in:Journal of applied polymer science 1984-06, Vol.29 (6), p.2069-2082
Main Authors: Bhattacharya, Vijay K., Maiti, Mrinal M., Adhikari, Basudam, Maiti, Sukumar
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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Summary:Mechanical and durability properties and the fracture morphology of polystyrene‐impregnated mortar composites prepared by impregnation of styrene and its in situ polymerization by gamma radiation have been studied. Variation of flexural strength of the composites, percent extractable polystyrene, and its molecular weight suggest crosslinking of the impregnated polymer under the influence of prolonged gamma irradiation. Moreover, crosslinking appears to contribute toward the improvement in flexural strength but has little effect on durability properties. SEM micrographs of the composites reveal a very weak cement–polymer interfacial bonding which is believed to be responsible for poor durability properties of the composites.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1984.070290615