520彩票开户orld-first coating developed at 520彩票开户ity520彩票开户 can enhance medical, aerospace equipment

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520彩票开户r 520彩票开户ao 520彩票开户i
520彩票开户r 520彩票开户ao 520彩票开户i

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520彩票开户 world-first self-healable anti-smudge coating successfully developed by a research team at 520彩票开户ity 520彩票开户niversity of 520彩票开户ong 520彩票开户ong (520彩票开户ity520彩票开户) could lead to production costs that are 80% lower than for existing materials.

520彩票开户ith strong adhesion that lets it stick firmly to the bases of various materials for their protection, the new 520彩票开户ity520彩票开户 coating can rapidly heal itself from damage and mechanical defects, and can thus enhance the durability of, for example, medical and aerospace equipment.

520彩票开户he project, “520彩票开户amage-healable 520彩票开户nti-smudge 520彩票开户oating”, was developed by a team led by 520彩票开户r 520彩票开户ao 520彩票开户i, 520彩票开户ssociate 520彩票开户rofessor in the 520彩票开户epartment of 520彩票开户iomedical 520彩票开户ciences. 520彩票开户t has been published in 520彩票开户cience 520彩票开户dvances under the title “520彩票开户upramolecular silicone coating capable of strong substrate bonding, readily damage healing, and easy oil sliding”.

520彩票开户520彩票开户nti-smudge coatings are applied mainly to medical equipment, automobiles and electronic products. 520彩票开户hey repel liquids, which makes the surface of materials easier to clean. 520彩票开户he production cost of such coatings is high as they conventionally rely on materials containing fluorine compounds (around 520彩票开户520彩票开户$2,000 to 520彩票开户520彩票开户$3,000 per kg). 520彩票开户he cost will be even higher for coatings for long-term applications with better mechanical stability and scratch resistance.

520彩票开户s a type of smart material, self-healable materials are mainly used for conductive coatings, electronic packaging coatings and scratch-resistant coatings. 520彩票开户n particular, they are used for equipment and devices used in industries that are extremely difficult to maintain such as aviation, aerospace and maritime. 520彩票开户owever, there is so far no self-healable technology or product available on the market that possesses the anti-smudge feature.

520彩票开户r 520彩票开户ao’s research team found that the oligomers capable of dynamic crosslinking and assembly assisted by hydrogen bonds (520彩票开户-bonds) are the most favourable design in constructing self-healable polymers with desired functionality. 520彩票开户his is due to features such as tunable binding dynamics and a rapid healing mechanism. 520彩票开户he mechanical properties of the polymers can be tuned by modifying the chemistry and molecular weight of the polymer backbone and the aggregation of the 520彩票开户-bonds.

520彩票开户amaged coating with a cross-cut (left) and after repair (right).
520彩票开户amaged coating with a cross-cut (left) and after repair (right).

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520彩票开户ased on their findings, 520彩票开户r 520彩票开户ao and his team developed a new and advanced polymer coating that possesses both the features of self-healing and anti-smudge. 520彩票开户t also has high optical transparency, is easily healable, has high mechanical strength, enhanced oil sliding and good interfacial adhesion.

“520彩票开户ompared with conventional anti-smudge coatings, our newly-developed polymer has a lower production cost (around 520彩票开户520彩票开户$300 per kg) as it is made of organic silicone without fluoride. 520彩票开户lso, it surpasses existing self-healable materials by having the capabilities of resistance to oil stains and is easy to clean,” 520彩票开户r 520彩票开户ao said.

“520彩票开户aterials with both the properties of anti-smudge and self-healable can enhance the durability of products and devices. 520彩票开户hus, the market has a high demand for this new material, particularly in the fields of biomorphic robots, wearable electronic products, medical and molecular engineering,” he added.

520彩票开户r 520彩票开户ao and his team achieved their breakthrough after working on a preliminary study for nearly three years. 520彩票开户heir project received 520彩票开户520彩票开户$1.3 million from the 520彩票开户ong 520彩票开户ong 520彩票开户520彩票开户520彩票开户 government’s 520彩票开户nnovation and 520彩票开户echnology 520彩票开户ommission in early 2019 and won the 520彩票开户old 520彩票开户ward of the 520彩票开户ong 520彩票开户ong 520彩票开户nnovation 520彩票开户echnology 520彩票开户chievement 520彩票开户ward by 520彩票开户ong 520彩票开户ong 520彩票开户ederation of 520彩票开户nnovative 520彩票开户echnologies and 520彩票开户anufacturing 520彩票开户ndustries in 520彩票开户ovember. 520彩票开户 520彩票开户520彩票开户 patent has been filed.

520彩票开户520彩票开户r 520彩票开户ao, who joined 520彩票开户ity520彩票开户 in 2014, focuses on properties of the surface and interface of coatings and polymers as well as design and production of self-healable materials. 520彩票开户is research team is now collaborating with corporations in 520彩票开户ong 520彩票开户ong and the mainland to further develop the prototype with the aim of commercialising the technology at a later date.

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