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  2. Polypropylene - Wikipedia

    en.wikipedia.org/wiki/Polypropylene

    Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly harder and more heat-resistant. It is a white, mechanically rugged material and has a high chemical resistance. [1]

  3. Polymer characterization - Wikipedia

    en.wikipedia.org/wiki/Polymer_characterization

    The characterization of mechanical properties in polymers typically refers to a measure of the strength, elasticity, viscoelasticity, and anisotropy of a polymeric material. The mechanical properties of a polymer are strongly dependent upon the Van der Waals interactions of the polymer chains, and the ability of the chains to elongate and align ...

  4. List of materials properties - Wikipedia

    en.wikipedia.org/wiki/List_of_materials_properties

    A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.

  5. Engineering plastic - Wikipedia

    en.wikipedia.org/wiki/Engineering_plastic

    An ABS 3D bell manufactured with a 3D printer. Engineering plastics [1] are a group of plastic materials that have better mechanical or thermal properties than the more widely used commodity plastics (such as polystyrene, polyvinyl chloride, polypropylene and polyethylene).

  6. Crystallization of polymers - Wikipedia

    en.wikipedia.org/wiki/Crystallization_of_polymers

    As done in crystalline materials, particles can be added to semi-crystalline polymers to change the mechanical properties. In crystalline materials the addition of particles works to impede dislocation motion and strengthen the material. However, for many semi-crystalline polymers particle fillers weaken the material.

  7. Polypropylene glycol - Wikipedia

    en.wikipedia.org/wiki/Polypropylene_glycol

    Polypropylene glycol or polypropylene oxide is the polymer (or macromolecule) of propylene glycol. [1] Chemically it is a polyether , and, more generally speaking, it's a polyalkylene glycol (PAG) H S Code 3907.2000.

  8. Polymer - Wikipedia

    en.wikipedia.org/wiki/Polymer

    A polymer (/ ˈ p ɒ l ɪ m ər / [4] [5]) is a substance or material that consists of very large molecules, or macromolecules, that are constituted by many repeating subunits derived from one or more species of monomers. [6] Due to their broad spectrum of properties, [7] both synthetic and natural polymers play essential and ubiquitous roles ...

  9. Strength of materials - Wikipedia

    en.wikipedia.org/wiki/Strength_of_materials

    List of materials properties § Mechanical properties; Material selection – Step in the process of designing physical objects; Molecular diffusion – Thermal motion of liquid or gas particles at temperatures above absolute zero; Specific strength – Ratio of strength to mass for a material

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