Importance of testing Standard and specification, National and International standards, Test specimen preparation – Preconditioning and test atmosphere. Identification of common plastics materials by simple test e.g. Visual inspection, density, effects of heat, combustion and solvents, analysis with common solvents.
Mechanical Properties Density and dimensions, Hardness, tensile strength, compressive strength, flexural strength, impact strength, dynamic stress – strain Properties, creep, friction and wear, abrasion resistance test, fatigue, burst strength, folding endurance.
Thermal properties Specific heat and thermal conductivity, thermal endurance, glass transition temperature, thermal yield tests, Heat deflection Temperature, Vicat softening temperature, Marten’s heat resistance test, low temperature brittle point and flexibility test, coefficient of thermal expansion, shrinkage, Thermal stability, Thermal ageing and flammability.
Permeability properties Water absorption, soluble and insoluble matter‐ chemical resistance, environmental stress cracking resistance, ageing, gas permeability, water vapour permeability and weathering. Processing and flow properties, Melt flow index, Optical properties, Refractive index, light transmission, haze, clarity, gloss, colour guard and microscope.
Electrical properties Insulation resistance, power factor, permittivity, dielectric strength, tracking resistance, arc resistance and antistatic test. Product testing pipe and fittings‐ film and sheets –container testing and FRP based products. Factors affecting the quality of materials and products. Uncertainty measurement. Analysis of failure and its measurements.
After completion of the course student will be able to:
This subject is on page 9, 10 of the original AKTU PDF.
