Crystalline Modification of Isotactic Polypropylene with a Rare Earth Nucleating Agent Based on Ultrasonic Vibration

Polypropylene is one of the most widely used plastics across the world because of its excellent performance and low price

Li

2019

Scholarcy highlights

  • Polypropylene is one of the most widely used plastics across the world because of its excellent performance and low price
  • PP is a polymer with multiple crystalline phases, namely α, β, and γ-phases
  • It has been proven that the crystalline structure of PP has an important effect on its final properties
  • The organic compound is usually selected from an organic heterocyclic compound, a fused ring compound, a fatty acid and a derivative thereof, an aromatic carboxylic acid and a derivative thereof, or other kinds of gems
  • I(tc)can be seen in Figure 11a,c that area of the melting peak of the β(ep)hase increased gradually with the increase of cooling temperature, which led to the increase of β-crystal content
  • The higher that the cooling temperature was, the better the dispersion of β-nucleating agent in the PP matrix

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