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# Compatibilizing
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  DuPont Polymer Modifiers <  Functions <  Compatibilizing

# Description and examples of polymer modifier functionalities

Coupling/Adhesion
Toughening
Flexibilizing
Masterbatch Resins

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Compatibilizers improve the value of blended or recycled polymers

30% PA6 / 70% LLDPE without compatibilizer30% PA6 / 70% LLDPE with 10% Fusabond® as a polymeric compatibilizer

The general principle of compatibilization is to reduce interfacial energy between two polymers in order to increase adhesion. Generally, adding compatibilizers also results in finer dispersion, as well as more regular and stable morphologies.

Adding compatibilizers generally increases mechanical performance and surface properties.

Polymer system DuPont recommended PA, PET, and EVOH adhesion promoter
PP 5-7% Fusabond  P M613-05, MZ203D, MD353D, MD411D
LDPE, LLDPE 5-7% Fusabond® E MB226D; 5-7% Surlyn® 1652, 1650
HDPE 5-7% Fusabond® E MB100D, MB226D, MB265D; 5-7% Surlyn® 1652, 1650
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#Examples of DuPont modifiers in compatibilized systems:

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Because DuPont cannot anticipate or control the many different conditions under which this information and/or product may be used, it does not guarantee the applicability or the accuracy of this information or the suitability of its products in any given situation. Users of DuPont products should make their own tests to determine the suitability of each such product for their particular purposes. The data listed herein falls within the normal range of product properties but they should not be used to establish specification limits or used alone as the basis of design.
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Disclosure of this information is not a license to operate or a recommendation to infringe a patent of DuPont or others.
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