Full-scale Characterization Platform and SAXS Development at SSRF

Fenggang Bian^1,2*, Jinyou Lin¹, Jianrong Zeng¹, Xiaran Miao¹, Feng Tian¹, Ping Zhou¹, Bing Guo², Chunxia Hong¹

¹Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China.

² Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China

ABSTRACT: A full-scale characterization platform based on SSRF is been developing. The platform will serve the structure characterization of polymer processing with the change of composition,  temperature, pressure, shearing and stretching. The structural information from high throughput characterization based on SSRF can be used to quickly optimize the processing of polymer and obtain desired new materials. It can also be used for the characterization of other materials, such as metals and ceramics. In the polymer processing, there is an evolution process of crystallization structure from molecular chain to crystallization, which gradually evolves into lamellar, lamellar stacking, to larger spherulites. The scale range that the researchers focus ranges from 0.1nm to 100μm. In order to characterize the structure of such a wide range by high throughout characterization, we are combining the advanced synchrotron radiation and the nonsynchrotron radiation techniques, and will realize the high throughout data acquisition to promote the development of Material Genome Initiative. The platform relies on the industrial experimental station of time-resolved ultra-small angle X ray scattering (Tr-USAXS), on which USAXS/SAXS/WAXS will be combined with the Raman, IR and SALS techniques of nonsynchronous radiation. The 10¹³phs/s@10keV photon flux and big space (30m length, 6m width, and 8m height) of Tr-USAXS are enough to place the large in-situ devices which can simulate the real polymer processing. SAXS/WAXS/Raman and SAXS/WAXS/IR have also been carried out. The integrated control software will be developed to realize the storage, batch processing and dynamic display of acquired data. The frame rate of the fastest detectors can be up to 3000Hz. To treat a large number of experimental data, data batch processing software will be written to extract useful data information. We have completed the batch pre-processing software of SAXS data. Two SAXS beamline (BL16B1 and BL19U2) have been open to the users. Tr-USAXS beamline is commissioning, and Sinopec-M SAXS beamline will also be put into construction. Based on the BL16B1 and BL19U2, SAXS/WAXS, GISAXS/GIWAXS, ASAXS, BioSAXS, Micro-SAXS and SAXS-CT have been developed.

Keywords: Shanghai Synchrotron Radiation Facility；Polymer；Full-Scale；SAXS；