Polymer sheet arching characteristic testing device and method

Abstract

The invention discloses a polymer sheet arching characteristic testing device comprising a feeding assembly, a detecting assembly, a testing table and a supporting assembly; wherein the feeding assembly is connected with the test bench; the test board is used for placing a polymer sheet to be tested; the feeding assembly drives the test bench to move; the test bench is arranged below the detectionassembly, the detection assembly comprises a displacement sensor and a force sensor probe, the force sensor probe is arranged at the lower end of the detection assembly and is used for downwards jacking and pressing the polymer sheet to be tested, and the displacement sensor is used for detecting the downward movement displacement of the force sensor probe; the feeding assembly, the detection assembly and the test bench are all arranged on the support assembly. According to the test method, two characteristic indexes, namely a pressure value and a displacement change amount, generated by jacking the polymer sheet by the probe of the force sensor can be obtained through test data, and the method can be used for evaluating the arching characteristic of the polymer sheet.

Description

technical field [0001] The invention belongs to the technical field of testing polymer physical properties, and in particular relates to a device and method for testing the bowing properties of a thin polymer plate. Background technique [0002] One of the important indicators in judging the durability and aesthetics of polymers is the polymer arching, which affects the practical use and overall characteristics of polymers. The arching characteristic of polymer is one of the important physical characteristics of clothing products. It is an important basis for measuring the comfort, durability and aesthetics of polymers, and it is also one of the decisive factors for consumers to evaluate the quality of polymers. Thus arching of the polymer characteristic Conducting research is especially important in the development of polymers. [0003] Most of the polymer arching performance testing methods widely used at home and abroad are steady-state methods. The unilateral elongatio...

AI Technical Summary

Problems solved by technology

However, the variables in this patent are relatively single, which is easy to cause errors, and the applied force is directly controlled by an external press, and this method is also difficult to apply to the test of the arching characteristics of polymer sheets

[0005] In summary, the existing technology still cannot objectively and truly test the arching characteristics of polymer sheets, so it is difficult to accurately use the arching characteristics of polymer sheets to judge or evaluate the properties of polymers

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