Reactive Ester Plasticizer for Elastomers Korea

  • Reactive Ester Plasticizer for Elastomers Korea
  • Reactive Ester Plasticizer for Elastomers Korea
  • Reactive Ester Plasticizer for Elastomers Korea
  • What is a reactive ester plasticizer for elastomers?
  • Reactive Ester Plasticizer for Elastomers Stephen O’Rourke, Technical Director, Industrial Ester plasticizers are traditionally used to provide low temperature and improved processing of elastomers. New esters have been designed recently to improve the permanence of these materials when subjected to high heat and fluid extraction.
  • How do I Choose an ester plasticizer?
  • When choosing an ester plasticizer, consider the specific elastomer being used and its properties. Compatibility between the plasticizer and elastomer is crucial, based on having similar polarities.
  • Which plasticizers are used in elastomer compounds?
  • Common plasticizers used in elastomer compounds are mineral oils and esters such as phthalates, sebacates, and adipates. However, plasticizer selection is largely dependent on which elastomer (s) is used and what the desired outcome is.
  • Are plasticizers and elastomers compatible?
  • The compatibility of plasticizers and elastomers is important. They need to have similar polarities. The Plasticizer/Polymer Polarity Chart on page 22 graphically shows the relationship between compatibility and polarity for esters and elastomers.
  • Are standard polymeric elastomers suitable for low temperature performance?
  • Standard polymeric esters are well known for their permanence in these elastomers, but are insufficient at im-proving low temperature performance. The esters tested in this study are lower molecular weight esters that have high heat resistance, but provide much needed low temperature flexibility, both before and after high heat-aging.
  • How much reactivity is bonded to the elastomer?
  • Based on our results in HNBR, our conclusion is that approximately 60–70 percent of the reactive ester actually was bonded with the polymer. In addition, it is quite apparent that the choice and level of peroxide is critical in maximizing the reactivity of the ester to the elastomer.

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