Categories: Science

Hyper-Elastic Hydrogels: Tsinghua University Develops Stretchy Gels with Unique Recovery Capability

Hydrogel discs have the ability to increase in area by up to 100 times when stretched. This is due to their high elasticity, which allows them to stretch to around 15 times their initial length. Although hydrogels are known for their stretchiness, they often do not return to their original shape when overstretched.

Researchers at Tsinghua University in Beijing have developed a new type of hydrogel that is both stretchy and maintains its original shape. They achieved this by inserting pearl-necklace chains into the hydrogel structure, made of coiled polymer beads connected by a chain of carbon atoms. These chains can unfurl under strain and rewind when the strain is released.

To create these chains, the researchers dried out the hydrogel so that the polymer chains were attracted to themselves rather than to water molecules. They found that their hydrogel could stretch to nearly 5 meters before quickly returning to its original length. A 2-centimeter-wide disc of the hydrogel could increase 100 times in area before returning to its original size.

The researchers also created inflatable robotic grippers from the hydrogel, designed to handle delicate objects like strawberries. These grippers were extremely damage resistant, able to withstand being stood on or pierced with a needle. Zehuan Huang at Peking University praised the work, stating that this hydrogel represents a major breakthrough in high-performance polymeric materials and will inspire interest in using hyper-elastic gels in soft robotics.

Samantha Reynolds

As a content writer at newsabcc.com, I dive into the depths of information to craft engaging and informative pieces that captivate our audience. With a keen eye for detail and a love for storytelling, I strive to deliver content that not only informs but also inspires. Whether unraveling the latest trends or delving into complex topics, I am dedicated to bringing valuable insights to our readers. Join me on this journey as we explore the world through the power of words.

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