A cryo-bulge apparatus for in situ weather balloon crystallization capturing during blowing by synchrotron radiation x-ray scattering.
A cryo-bulge apparatus for in situ weather balloon crystallization capturing during blowing by synchrotron radiation x-ray scattering.
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DOI：
10.1063/5.0071132
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发表时间：
2022-05
期刊：
影响因子：
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通讯作者：
Pinzhang Chen;Zhijie Xia;Yongyue Luo;Wei Chen
中科院分区：
文献类型：
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作者：
Pinzhang Chen;Zhijie Xia;Yongyue Luo;Wei Chen
设计并制作了一种可直接安装在同步辐射X射线散射光束线上的低温膨胀装置。利用低温膨胀装置，可以原位捕获天然橡胶在吹塑过程中的结晶过程。对于机械测量，橡胶膜被紧紧地夹在圆形窗口的外围。通过大铁块的存在实现低温测量，确保低温度变化（21 kPa.这表明，在低温等双轴变形条件下，橡胶在吹塑过程中可以发生结晶。功率标度律为0.52%/kPa。该装置能够揭示橡胶在多维变形过程中的微观结构演变规律，为气象气球的优化设计提供指导。
A cryo-bulge apparatus, which can be directly installed in the synchrotron radiation x-ray scattering beamline, is designed and manufactured. Using the cryo-bulge apparatus, the crystallization of natural rubber during blowing can be captured in situ. For mechanical measurements, the rubber film is tightly clamped at the periphery of a circular window. A low temperature measurement is achieved by the presence of a large iron block, which ensures low temperature variation ( 21 kPa. This suggests that the crystallization of rubber during blowing can occur under the equibiaxial deformation condition at low temperatures. The power scaling law is found to be 0.52%/kPa. The cryo-bulge apparatus is capable of clarifying the microstructural evolution of rubber during multi-dimensional deformation, which can provide guidance for the optimization of a weather balloon.