SURFACE WAVE TIME-FREQUENCY REGULATION-BASED LOCALIZED HETEROGENEOUS COMPOSITE MATERIAL PREPARATION DEVICE AND METHOD

WIPO Patent Application WO/2021/227276

A1

A surface wave time-frequency regulation-based localized heterogeneous composite material preparation device and method. Said method comprises: uniformly mixing functional particles, a photosensitive liquid and a photoinitiator; inputting, into a pair of frequency-variable surface acoustic wave transducers (2), periodic time-frequency regulation sinusoidal signals with a frequency, a duration, intermittent time and time difference, such that the pair of frequency-variable surface acoustic wave transducers (2) are excited to generate corresponding acoustic surface standing waves, which are coupled into the interior of a liquid container (3) to form a localized sound field in the photosensitive liquid, and the functional particles in the photosensitive liquid are subjected to an action of a sound radiation force of the localized sound field to form a stable array distribution; and turning on an ultraviolet light source (4) for curing to complete manufacturing. The method achieves localized sound field distribution inside a liquid container, achieves preparation of a corresponding localized heterogeneous composite material, and solves the problem of poor regional selectivity in preparation of an acoustic surface wave-assisted heterogeneous composite material.

WANG YANCHENG (CN)
HAN CHENYANG (CN)
MEI DEQING (CN)
XU CHENGYAO (CN)

PCT/CN2020/108878

November 18, 2021

August 13, 2020

Click for automatic bibliography generation  

UNIV ZHEJIANG (CN)

B29C64/124

CN110587977A	2019-12-20
CN105703734A	2016-06-22
CN205488177U	2016-08-17
CN103009632A	2013-04-03
CN106079439A	2016-11-09
US20080142366A1	2008-06-19

HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)

View/Download PDF      PDF Help

Previous Patent: GAIN COMPENSATION DEVICE AND BIAS CIRCUIT DEVICE

Next Patent: DISPLAY PANEL AND CONTROL METHOD THEREFOR, AND ELECTRONIC APPARATUS