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Method for directly measuring reinforcement mechanical properties of rubber

A technology of rubber and mechanics, applied in the direction of measuring devices, instruments, and mechanical devices, etc., can solve the problems that research cannot be widely carried out, and measurement methods cannot be found.

Active Publication Date: 2015-10-28
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the lack of suitable measurement methods for its other properties, research in this area cannot be widely carried out. At present, the filling effect of fillers is mainly measured by measuring the mechanical properties of vulcanizates.

Method used

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with specific embodiments.

[0028] The concrete method that the present invention measures bonded glue mechanical property is:

[0029] 1. The sample preparation steps are:

[0030] 1) Fully dissolve natural rubber in xylene at a ratio of 1g:50mL to obtain a natural rubber solution, and at the same time add an appropriate amount (0.5 g) of reinforcing filler to 100mL xylene and fully ultrasonically disperse it (actually 30 minutes);

[0031] 2) Mix the ultrasonically prepared reinforcing filler solution into the natural rubber solution and stir fully (actually 6h);

[0032] 3) Put the mixed glue solution in a beaker, volatilize the xylene to get floc;

[0033] 4) Cut out a thin rubber strip with a length of 2.5cm and a width of 1cm as a test sample. Since the maximum test force value of the electronic peel tester is relatively small, in order to ensure a smooth test process, the thickness...

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Abstract

The invention discloses a method for directly measuring reinforcement mechanical properties of rubber. The method comprises the following steps: 1, preparing a required sample; 2, measuring the sample; 2.1, conducting the measurement on an electronic stripping tester, before the measurement, resetting current force values, displacement and peak values of the electronic stripping tester, and meanwhile setting parameters related to the test; 2.2, fixing a thin rubber strip sample which is prepared in the step 1 on the electronic stripping tester through a clamp, and operating the electronic stripping tester; 2.3, after the sample is snapped, stop operating, and recording yield strength, strain rate, strength of extension and the maximum force value in the operating process; 2.4; preparing a flocculant glue sample into a cylindrical sample or a cuboid sample which is larger than 6 millimeters, and measuring the hardness value through a Shore hardness tester. By means of the method, the mechanical properties of bound rubber can be measured directly, it is facilitated to conduct intensive study on the bound rubber, the measuring method is simple to operate and convenient, and the method can be mastered rapidly by users.

Description

technical field [0001] The invention relates to the improvement of rubber reinforcement technology, specifically a method for directly measuring the mechanical properties of bonded rubber, used for evaluating rubber reinforcement performance, and belongs to the technical field of rubber reinforcement materials. Background technique [0002] Bonding glue, also known as carbon black gel, refers to the rubber that is chemically bonded to the surface of carbon black during the blending process of rubber and carbon black. It is a value to measure the bonding effect of filler and rubber. Refers to the part of the rubber that is filled in the vulcanized adhesive that cannot be dissolved by its amount of solvent. It is essentially adsorbed rubber on the surface of the filler, which has glass-like characteristics. More bonding glue means stronger reinforcement, so bonding glue is a yardstick to measure the reinforcing ability of carbon black. The amount of bonding glue is relate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
Inventor 陈建朱林英罗少伶代文超聂松金永中
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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