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A Strategy for Nonmigrating Highly Plasticized PVC.

Jun Yuan1, Bin Cheng2

  • 1Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China.

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|August 26, 2017
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Summary
This summary is machine-generated.

A novel plasticizer derived from phthalate and chlorinated paraffin creates highly plasticized PVC that does not migrate. This new method enhances interaction to permanently prevent plasticizer leaching, unlike other approaches.

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Area of Science:

  • Polymer Science
  • Materials Chemistry

Background:

  • Polyvinyl chloride (PVC) is widely used but requires plasticizers for flexibility.
  • Traditional plasticizers, like di(2-ethylhexyl) phthalate (DOP), can migrate out of PVC, limiting its long-term performance and posing environmental concerns.
  • Developing non-migrating plasticizers is crucial for advanced PVC applications.

Purpose of the Study:

  • To synthesize a novel non-migrating plasticizer for PVC.
  • To investigate the mechanism of plasticizer migration suppression.
  • To evaluate the plasticizing efficiency and permanence of the new PVC formulation.

Main Methods:

  • A new plasticizer was synthesized from di(2-ethylhexyl) 4-hydrophthalate and chlorinated paraffin-52.
  • The synthesized plasticizer was incorporated into PVC to create a new formulation.
  • Plasticizing efficiency was compared to DOP.
  • Migration suppression was assessed, focusing on the interaction mechanism between the plasticizer and PVC.

Main Results:

  • The prepared PVC exhibited high plasticizing efficiency comparable to DOP.
  • Migration of the new plasticizer from the PVC was completely suppressed.
  • The mechanism of suppression involved increased interaction between the phthalate plasticizer and PVC, not just molecular size increase.
  • The methodology proved versatile for creating non-leaching PVC.

Conclusions:

  • A novel, highly effective, and non-migrating plasticizer for PVC has been developed.
  • This approach offers a permanent plasticizer effect by enhancing phthalate-PVC interaction, overcoming limitations of conventional methods.
  • The versatile methodology enables the production of advanced non-leaching PVC materials.