Testing plays a critical role in the life cycle of a polymer, from the raw material to the compound through to the semi-finished and finished product.
What is the need of plastic testing?
Chemical testing of polymers and plastics is required to ensure that a material is suitable for its intended application. Polymer chemical testing is used to identify fundamental structural information including as molecular weight, molecular weight distribution and information on branching.
How do you test plastic?
A materials testing machine is used to accurately measure the physical strengths of solid materials. A Rheometer is used to measure the rheological properties of molten polymers when varying shear rates and temperatures. A wide number of accessories are used to determine other characteristics of the polymer.
What are the types of major test used in plastics testing?
Mechanical testing including tensile, flexural, shear and compressive properties. Physical testing including density, hardness and scratch resistance. Thermal testing including DSC, DMTA,TMA, TGA, HDT and Vicat Softening Points.
What are the major reasons for testing in plastic testing?
- Validate Material or Supplier Changes. ...
- Verify New and Revised Production Process. ...
- Ensure Compliance to Specifications. ...
- Competitive Research. ...
- Reduce Liability.
How do you test the quality of plastic?
Hardness testing for plastic involves pressing an indenter, which protrudes out of the center of a tester's presser foot, into the plastic material. The indenter is pushed into the plastic perpendicularly with test force until the presser foot makes complete contact with the plastic.18 mar 2006
What other tests might you want to perform on the plastic samples before use in a commercial product?
5. What other tests might you want to complete on the plastic samples before you test them for use as in a product? Possible student answers: test for reactivity with acid or base. Test for solubility in water, or waterproof ability.
How do you test for polymers?
- Bend and Flex Testing.
- Compression Testing.
- Creep and Stress Rupture Testing.
- Fatigue Testing.
- Fracture Toughness Testing.
- Impact Testing.
- Shear Testing.
- Tear Testing.