Breathable film testing apparatus

Abstract

The application relates to the technical field of film testing, in particular to a breathable film testing device. The breathable film testing device comprises a box body and an air pressure control assembly. The box body is provided with a partition plate, so that the box body is divided into a first cavity and a second cavity. The air pressure assembly is used for forming a pressure difference between the first cavity and the second cavity. The partition plate is provided with a breathable hole. Corresponding open-close control devices are arranged at the breathable hole, so as to control the opening and closing of the breathable hole. When the performance of the breathable film covering the breathable hole is tested, the open-close control devices can be used to open the breathable hole during the establishment of the pressure difference, so as to test the performance of the breathable film under the gradual pressure change. The breathable hole can also be opened after the establishment of the pressure difference, so that the breathable film bears the instantaneous high pressure impact when the breathable hole is opened, the performance of the breathable film under the instantaneous high pressure impact is tested, and the working state of the sudden change of the pressure on both sides of the breathable film is simulated.

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