SAG Compatibilizers

Fine-Blend SAG Compatibilizers

SAG is a novel family of styrene-acrylonitrile-glycidyl methacrylate terpolymers with different content of glycidyl methacrylate (GMA). We offer SAG-001, SAG-002, SAG-005, SAG-008, the higher the number, the higher the reactivity of the compatibilizer. 

These SAG compatibilizers are manufactured by our partner, Fine-Blend, and is exclusively distributed in the United States through SACO AEI Polymers Distribution. 

How Can SAG Compatibilizers be Used?

Fine-Blend’s SAG can be used to effectively compatibilized a variety of polycarbonate, polyester, and styrenic based polymer blends (e.g. PC/ABS, ABS/PET, ABS/PBT, ASA/PBT, etc.)

A compatibilizer is expected to: 

  • Improve dispersion and morphology of the blend.
  • Build stronger polymer-polymer interface.
  • Stabilize the blend.
  • Improve properties statistically:
    •     Mean values increase
    •     Standard deviations decrease
  • Provide consistent response to external factors.

How Do SAG Compatibilizers Work?

In processing conditions, the GMA (epoxy) groups of SAG are very reactive to the end-groups of polycarbonate, polyesters, and other condensation polymers. 

As an effect of the chemical reaction, a strong polymer-polymer interface is formed, and the blend stabilizes. 

Fine-Blend SAG Compatibilizers:

  • Provide phase/process stability.
  • Control degradation from heat, shear, hydrolysis, alkaline/acid conditions, which often result in surface defects. 
  • Improve quality of the parts. 

Learn More About SAG Compatibilizers

If you are interested in learning more about Fine-Blend’s SAG compatibilizers, contact us today at SACO AEI Polymers Distribution. 


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