Academician Fang Ning: LCD elastic body super material promotes skin regeneration

Fang Yanning, academician of the Chinese Academy of Sciences, foreign academicians of the American Academy of Engineering, the first batch of experts and members of the review committee of China Science and Technology Think Tank, experts in the field of materials and structural mechanics, professor of Beijing Institute of Technology, Director of the Academic Committee of the School President of Honorary President of Moscow University in Shenzhen North Law.

Fang Yanning is mainly engaged in the study of advanced materials and structural technical theories, computing and experimental methods, expand the theory of macro -deformation and fracture theory of iron electrical/iron magnetic materials, and develop advanced materials and structural electromagnetic hot heat. Methods have developed multiple multi -axis loading and testing technologies and experimental methods for advanced materials, breaking the material performance testing technology in the series thermal/force/oxygen coupling environment, and independently developed a series of ultra -high temperature test instruments to fill the domestic gap.

The gospel of patients with scar and scarring

LCD elastomer (LCE) is a soft and reversible shape change that can produce large and reversible shape changes in thermal/light stimulation. It is widely used in the fields of artificial muscles, soft drives, and flexible robots. However, due to its high driving temperature (usually above 60 ° C) and lower bidirectional driving performance (usually less than 10%driving strain), the material rarely develops related products.

Fang Yanning and Professor Zhang Yihui of Tsinghua University have developed unique mechanical guidance design and manufacturing solutions for LCD elastic super materials. The LCE super materials they develop can get unprecedented dual -axis driving strain (53%) and two -way thermal expansion coefficient (33125 PPM K1). It combines it with medical dressing to develop a biocompatibility, breathability, shrinkable can be shrinkable , To stop bleeding. As a non -invasive treatment method, this patch can solve the limitations of traditional methods, promote skin regeneration, and effectively avoid the formation of scar and scarring.

From using 3D printing to proposing a new 4D printing

3D printing, also known as additive manufacturing, is based on digital model files. It uses powder metal or plastic and other adhesive materials to construct objects by layer -by -layer printing. technology. Fang Yanning used 3D printing technology to show a three -stable origami structure.

The origami structure has important applications in the fields of super materials, robots, and in order to obtain unique reconstruction features, the multi -stable characteristics of the origami structure have become a research hotspot in the scientific engineering community. The Fang Ningning team used the classic Square-Twist origami structure to show a multi-material 3D printed three-stable origami structure. This structure is conducive to improving channel capacity and communication reliability, and has potential applications in large -scale multiple -scale multi -output systems in the key technologies of 5G. In addition, Fang Yanning not only used 3D technology to show the structure, but also proceeded from the structure and proposed a new 4D printing method.

4D printing is one more "d" than 3D printing, that is, the time dimension. New things have completely changed the traditional industrial printing. However, at present, this technology is difficult to prepare a structure with complex deformation and excellent mechanical properties, so the development of the field of engineering application has been severely restricted.

The combination of Fang Yanning team and Professor Georgian Polytechnic Qi Airlines, the empty cavity structure based on heterogeneous materials is uneven and swollen under inflatable load, and proposes a pneumatic multi -material 4D printing strategy. This new 4D printing method can not only create a structure containing a complex three -dimensional configuration, but also can prepare the initial with a flat surface. Once inflated, it can automatically become an innovative configuration of the target three -dimensional complex curved surface.

Fang Yingning said that through the research of advanced structure technology, the key technical problems facing the difficult design of the high -end equipment of military and civilian equipment, realizing the integration and innovation and disruptive breakthrough of advanced structures, manufacturing technology, and experimental evaluation technology. (Kang Wenying)

Academician Fang Yanning and students together

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Introduction to Academician Fang Ning

Fang Yanning, academician of the Chinese Academy of Sciences, foreign academicians of the American Academy of Engineering, the first batch of experts and members of the review committee of China Science and Technology Think Tank, experts in the field of materials and structural mechanics, professor of Beijing Institute of Technology, Director of the Academic Committee of the School President of Honorary President of Moscow University in Shenzhen North Law.

Fang Yanning is mainly engaged in the study of advanced materials and structural technical theories, computing and experimental methods. The theory of macro -deformation and fracture of iron electrical/iron magnetic materials has been expanded, and applications are obtained in finite element analysis and device design. The development of advanced materials and structural strength electromagnetic heat multi -scale computing mechanics methods and design preparation methods, research results in the world's first additive manufacturing satellite dot matrix main support structure, the first domestic rail transit equipment main asset -shaped composite material Applications are obtained in high -end equipment structures such as suspension structure. It has developed advanced materials multi -axis loading and testing technologies and experimental methods, breaking the series of material performance testing technologies in the series thermal/force/oxygen coupling environment, and independently developed a series of ultra -high temperature test instruments to fill the domestic gap and become my country's aerospace. One of the main platforms for ultra -high temperature mechanical performance tests supports major national defense equipment such as aerospace return compartment and key model aircraft.

Won 2 National Natural Science Science Awards, 3 first prizes of the Ministry of Education's "High School Natural Science Award", two first -class technical inventions, and won the He Liang Heli Science and Technology Progress Award, Zhou Peiyuan Lower Award, Xu Zhi Lun Lower First AwardAnd the highest gold medal of the international computing method conference.(Source: Official WeChat public account of Zhongke Think Tank)

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