US 11,655,144 B2
Method for preparing micro-cavity array surface product with inclined smooth bottom surface based on air molding method
Jian Li, Jiangsu (CN); Fanlin Zeng, Jiangsu (CN); Lamei Wang, Jiangsu (CN); Rao Fu, Jiangsu (CN); Gang Liu, Jiangsu (CN); and Jie Luo, Jiangsu (CN)
Assigned to Jiangsu University, Jiangsu (CN)
Appl. No. 17/604,444
Filed by Jiangsu University, Jiangsu (CN)
PCT Filed Apr. 28, 2021, PCT No. PCT/CN2021/090483
§ 371(c)(1), (2) Date Oct. 18, 2021,
PCT Pub. No. WO2022/068191, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 202011048792.1 (CN), filed on Sep. 29, 2020.
Prior Publication US 2022/0267144 A1, Aug. 25, 2022
Int. Cl. B81C 1/00 (2006.01)
CPC B81C 1/00031 (2013.01) [B81C 1/00047 (2013.01); B81C 1/00055 (2013.01); B81C 1/00063 (2013.01); B81C 1/00071 (2013.01); B81C 1/00079 (2013.01); B81C 1/00103 (2013.01); B81C 1/00119 (2013.01); B81C 1/00388 (2013.01); B81C 1/00444 (2013.01); B81C 1/00531 (2013.01); B81C 2201/0102 (2013.01); B81C 2201/0132 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An air molding method based on pre-spreading of an auxiliary microstructure template for preparing a micro-cavity array surface product with an inclined bottom surface, comprising the following steps:
step 1, preparing a micro-cavity array surface, and preparing an auxiliary microstructure polymer template, and performing a plasma treatment on the auxiliary microstructure polymer template;
step 2, spreading a layer of a liquid polymer film to be formed on the auxiliary microstructure polymer template subjected to the plasma treatment, and placing a gap bead in an empty position on the micro-cavity array surface;
step 3, placing the auxiliary microstructure polymer template spread with the liquid polymer film on the gap bead on the micro-cavity array surface, maintaining this state, and feeding the auxiliary microstructure polymer template into a vacuum drying oven; and
step 4, setting a pressure in the vacuum drying oven according to a designed pressure, heating and solidifying the liquid polymer film, and removing the micro-cavity array surface to obtain the micro-cavity array surface product with the inclined bottom surface.