Post on 02-Nov-2015
description
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Property Ranges of Polymers
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Property Ranges of Polymers
Melting onset (C)
Creep resistance (Mpa)
Vicat Temperature (C)
(mg/dm2.day)
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Property Ranges of Polymers
Property Profile of Polymeric Materials
A balance between the request profile and profile is
obtained by:
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Influencing Factors in polymer testing
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Influencing Factors in polymer testing
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Influencing Factors in polymer testing
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Types of Testing
Destructive testing is changes the dimensions or physical and structural integrity of the specimen. (It is essentially destroyed during the test)
e.g., Tensile, Compression, Shear and Rockwell Hardness Non-Destructive testing does not affect the structural
integrity of the sample. ( A measurement that does not effect the specimen in any way)
e.g., weighing, measurements etc.
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Stress Types
Normal : load perpendicular to cross-section
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Stress Types
Shear : load parallel to cross-section
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Strain: Intensity of Deformation
Strain = dl / lo
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Relating Stress and Strain
Stress = Youngs modulus x strain
Polymer Testing Classification
Impact Test
Impact test
Influencing factors on toughness
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Polymer testing
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Polymer testing
Links between molecules maintained
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Polymer testing
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Effect of time and temperature on mechanical properties
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Effect of time and temperature on mechanical properties
Segregation & degradation
Charpy Impact Test
Izod Impact Test