System and method for testing tensile property of soft hydrophilic material in normal saline

A technology of hydrophilic materials and normal saline, applied in the field of experimental mechanics of soft hydrophilic materials, can solve problems such as difficulties in loading and measuring soft hydrophilic materials, unusable contact extensometers, and inability to meet the loading stroke , to achieve the effects of easy production and promotion, reliable clamping device and measuring device, and improved accuracy
CN112683667AInactive Publication Date: 2021-04-20BEIJING CENT FOR PHYSICAL & CHEM ANALYSIS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING CENT FOR PHYSICAL & CHEM ANALYSIS
Publication Date
2021-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a system for testing the tensile property of a soft hydrophilic material in normal saline. The system comprises a microcomputer-controlled universal tensile testing machine (1), a salt bath box (2A), a temperature-controlled circulating water tank (2B), a salt bath system (2), a clamping device (3) and a digital image acquisition system (4). The invention further discloses a method for testing the elasticity modulus, the Poisson's ratio and the elongation at break of the soft hydrophilic material in the normal saline environment through the system. The device and the method are high in controllability, convenient to operate and easy to popularize.
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Description

technical field

[0001] The present invention relates to the field of experimental mechanics of soft hydrophilic materials, more specifically, to a system and method for testing the tensile properties of soft hydrophilic materials in physiological saline, especially for the elastic modulus of soft medical materials , Poisson's ratio, elongation at break testing system and method. Background technique

[0002] Soft hydrophilic materials have broad application prospects in the biomedical field. After the soft hydrophilic material absorbs water and swells in water, it is transparent, soft, elastic, and not easy to break when bent. This kind of material has little mechanical stimulation in the body tissue, and is a kind of biomedical material with great application value.

[0003] In order to promote the realization of various functions of soft hydrophilic materials in medical devices, it is necessary to measure the elastic modulus, Poisson's ratio and elongation at break of so...

Claims

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