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Anna University B.TECH - Polymer Technology - Semester 7 - POLYMER BLENDS AND COMPOSITES
Posted Date: 10 Dec 2007 Resource Type: Articles/Knowledge Sharing Category: General
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Posted By: Bala Member Level: Diamond
Rating:  Points: 1
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PM703 POLYMER BLENDS AND COMPOSITES
UNIT – I
Polymer Blends: Classification – study of polymer blends and alloys on the basis of miscibility – Criteria for selection of polymer - Thermodynamics of miscibility – Mechanical compatibility – Phase morphology, Phase separation behavior – morphology of blends and its determination- electron microscopy -Domain structure.
UNIT – II
Principles and methods involved in preparation of different Polymer blends– introduction to Rheology of polymer blends - its relevance in processing – Rheology – phase morphology relationships and their relevance –micro Rheology- rheological models- solution, and suspension models-IPN’s – synthesis, morphology, properties and applications – enhancement of polymer miscibility – utilization of miscible polymers.
UNIT – III
Toughened polymers
Toughening of polymers- mechanism of toughening of thermoplastics and thermosets. Specific examples for toughened thermoplastics and thermosets- influence of processing on toughness. Industrial applications.
Composites
Types of composites – reinforced thermoplastics & thermosets – different types of reinforcements and their effects on the properties of the composites, mechanism of reinforcement. Fibrous reinforcement : Glass fibers – carbon fibers – aramid fibers – boron fibers. Particulate fillers - Coupling agents.
UNIT – IV
Composition of composites – property correlation - Mechanical, Electrical, Thermal properties of composites. Processing of reinforced thermosets and thermoplastics: Techniques for processing such as hand lay-up, Spray up, Continuous sheet manufacturing, Pultrusion – resin transfer molding – filament winding – vacuum bag moulding.
UNIT – V
Manufacture of structural and decorative laminates – preparation of sandwich structure Troubleshooting related to the above techniques. Processing of short fibers reinforced thermoplastics. Designing with composites. Post processing of composite products - Application of composites
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Responses
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| Author: Bala 11 Dec 2007 | Member Level: Diamond Points : 1 | REFERENCE BOOKS:
1. D R Paul and S Newman, Polymer Blends Vol. I & II, Academic Press Inc, 1978.
2. M O W Richardson Polymer engineering composite – Applied Science,
3. O Olabisis, I W Rubison and M T Shaw Polymer-Polymer Miscibility Academic Press – New York 1979.
4. Utracki, Polymer Blends and Alloys Hanser Publisher.
5, G. Lubin, Hand book of composites, 2nd Ed., Van Nostrand Reinhold, NY, 1982
6. S.M.Lee, Dictionary of Composites Materials Technology, Technomic Lancaster, Pa, 1989.
7. B.T. Astrom, Manufacturing of Composites, Chapman & Hall, 1997.
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