Flexible film stretching and bending device

Abstract

A flexible film stretching and bending device comprises a substrate, a surface of the substrate is provided with a protrusion, a surface of the protrusion is a smooth arc curved surface, the arc curved surface of the protrusion is provided with a light-passing circular hole penetrating the substrate at the arc-top position, the arc curved surface of the protrusion is provided with cross-aligning grooves or cross-aligning lines configured to take the center of the light-passing circular hole as a center point around the light-passing circular hole, and necks are respectively arranged at two sides of the arc curved surface on the substrate. The flexible film stretching and bending device can be used in various optical tests such as reflective and transmissive transient absorption spectroscopy test, grazing incidence X-ray diffraction test, scanning electron microscope test, Raman spectroscopy test and fluorescence lifetime test for the flexible film, and utilizes the cross-aligning grooves or the cross-aligning lines and the cross marks on the flexible film for alignment so as to ensure that the optical measurement point space position of the flexible film is unchanged after the flexible film is bent, the neck are employed to perform limiting for the flexible film to allow the flexible film not to be randomly moved to facilitate test.

Description

technical field [0001] The invention relates to the technical field of flexible film testing, in particular to a flexible film stretching and bending device. Background technique [0002] In order to reflect the physical properties of flexible materials against bending, characterize the toughness and bending resistance of materials, usually, it is necessary to make special testing tools to test the properties of flexible materials after bending with different radii. [0003] When the existing flexible test mold for optical testing is used for bending tests on flexible materials, the test sample needs to be at the focus position. It is very inconvenient to adjust the test sample back to the focus position. In addition, the function of the existing test mold is relatively single, and generally only a single optical test can be performed on the test sample. In the test related to flexible films, it is often necessary to use different testing methods to characterize the propert...

AI Technical Summary

Problems solved by technology

[0003] When the existing flexible test mold for optical testing is used for bending tests on flexible materials, the test sample needs to be at the focus position. It is very inconvenient to adjust the test sample back to the focus position

In addition, the function of the existing test mold is relatively single, and generally only a single optical test can be performed on the test sample. In the test related to flexible films, it is often necessary to use different testing methods to characterize the properties of the film. At this time, different bending molds need to be replaced.

Images