Tuning the Strength and Ductility of a Biomimetic Adhesive Through Breakable Bonds: Designing the "Ideal Adhesive"

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2017-WILK-67740
The ideal adhesive is both strong and ductile, which is the characteristic of toughness. Having these parameters seemingly at odds with each other, there has been some, but not much, effort to fill the technology gap. There exists a need to create an adhesive that is both strong and ductile in order to maximize performance.

Researchers at Purdue University have synthesizede a biomimetic copolymer system that improves ductility of an adhesive by 45%. While the polymer alone exhibited brittle fracture, incorporation of ethylene glycol results in a brittle to ductile transition, and enhances the strength of the material substantially. The technology described provides a general design principle for creating ideal adhesives, balancing both strength and ductility.

Advantages:
- Increases ductility of an adhesive
- Balances both strength and ductility

Potential Applications:
- Adhesives
- Copolymer systems
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