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A method for directly measuring the mechanical properties of rubber reinforcement

A rubber and mechanical technology, applied in 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: 2017-09-01
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Abstract
  • Description
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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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Experimental program
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Effect test

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 the mechanical properties of rubber reinforcement. 1) Preparation of required samples; 2) Measurement of samples: 2.1) The measurement is carried out on an electronic peeling tester. Clear the force value, displacement and peak value, and set the test-related parameters at the same time; 2.2) Fix the thin rubber strip sample prepared in step 1) on the electronic peel tester with a fixture, and run it; 2.3) After pulling the sample Stop running after breaking, and record the yield strength, elongation rate, tensile strength and maximum force value during the process; 2.4) Prepare the floc sample into a cylindrical or cuboid sample > 6mm, and measure it under the Shore hardness tester its hardness value. The method can directly measure the mechanical properties of the bonded glue, which is convenient for further in-depth research on the bonded glue, and the measurement method is simple and convenient to operate, and users can learn quickly.

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 related ...

Claims

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Application Information

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Patent Type & Authority Patents(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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