Elvaloy® enhances impact strength while maintaining other properties needed in electrical and electronic connectors, as well as a wide range of other industrial and consumer products.
Elvaloy® PTW provides super-tough impact resistance while improving hydrolysis resistance of PBT compounds for higher product quality. It also can enable increased productivity, while achieving improved impact strength in cast PET-based sheet applications.
For the most demanding PBT impact requirements, Elvaloy® PTW provides super-toughness in virgin and glass fiber reinforced compounds.
Graph 1: Improved impact strength of PBT with Elvaloy® PTW
DuPont™ Elvaloy® PTW terpolymers and Elvaloy® AC acrylate copolymers enhance PBT and PET resins as an impact modifier, nucleating agent, processing aid to improve melt flow, and as a hydrolysis stabilizer. Examples of DuPont polymer modifiers used in polyester include the following:
Product Grade
Recommendation
|
PBT
|
PET
|
Glass-
Reinforced
|
Function
|
Elvaloy® PTW |
x
|
x
|
x
|
Super tough |
Elvaloy® PTW |
x
|
x
|
|
Compatibilizing polyesters with PE or PP |
Elvaloy® 4170 |
x
|
|
x
|
Super toughening |
Elvaloy® AC |
x
|
|
x
|
Moderate toughening, high flow |
Elvaloy® 8920 |
|
x
|
|
Crystallization promoter for PET |
