Magneto-sensitive rubber with controllable adhesion characteristics, and preparation method and test device thereof

A technology of magnetic-sensitive rubber and characteristics, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems such as the controllable adhesion characteristics of magnetic-sensitive rubber.

Active Publication Date: 2019-04-16
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence and interference of the magnetic field on the measuring device, there is no method and device that can systematically detect the controllable adhesion characteristics of the magnetic sensitive rubber under the action of the magnetic field.

Method used

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  • Magneto-sensitive rubber with controllable adhesion characteristics, and preparation method and test device thereof
  • Magneto-sensitive rubber with controllable adhesion characteristics, and preparation method and test device thereof
  • Magneto-sensitive rubber with controllable adhesion characteristics, and preparation method and test device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare isotropic magnetic-sensitive rubber with controllable adhesion properties, and study the effects of pull-out speed, pressing time, and magnetic field strength on the adhesion properties of isotropic magnetic-sensitive rubber:

[0044] 1. According to the following process (such as figure 1 shown) to prepare sample 1:

[0045] a. Add 0.4g reduced graphene oxide and 3.3mL (3.4g) 1,4-dioxane to the beaker, and ultrasonically disperse for 30min;

[0046] b. Continue to add 40g of PDMS-A component and 8.9g of carbonyl iron powder particles into the beaker, perform ultrasonic dispersion treatment and mechanical stirring for 1h, transfer to a drying oven at 120°C to dry until 1,4-dioxane is completely removed Then take it out and cool it for later use;

[0047] c. Continue to add 4g of PDMS-B component and stir for 5 minutes to make it evenly mixed and put it into a vacuum drying oven with a vacuum degree of 101Pa for 10 minutes to completely remove the air bubbles i...

Embodiment 2

[0062] Prepare anisotropic magnetic-sensitive rubber with controllable adhesion properties, and study the effects of pull-out speed, pressing time, and magnetic field strength on the adhesion properties of anisotropic magnetic-sensitive rubber:

[0063] 1. According to the following process (such as figure 1 shown) to prepare sample 6:

[0064] a. Add 0.4g reduced graphene oxide and 3.3mL (3.4g) 1,4-dioxane to the beaker, and ultrasonically disperse for 30min;

[0065] b. Continue to add 40g of PDMS-A component and 8.9g of carbonyl iron powder particles into the beaker, perform ultrasonic dispersion treatment and mechanical stirring for 1h, transfer to a drying oven at 120°C to dry until 1,4-dioxane is completely removed Then take it out and cool it for later use;

[0066] c. Continue to add 4g of PDMS-B component and stir for 5 minutes to make it evenly mixed and put it into a vacuum drying oven with a vacuum degree of 101Pa for 10 minutes to completely remove the air bubbl...

Embodiment 3

[0081] Preparation of an isotropic magnetically sensitive rubber with controlled adhesion properties:

[0082] a. Add 0.6g reduced graphene oxide and 3.8mL (4.0g) 1,4-dioxane to the beaker, and ultrasonically disperse for 20min;

[0083] b. Continue to add 23g of PDMS-A component and 69.6g of carbonyl iron powder particles into the beaker, perform ultrasonic dispersion treatment and mechanical stirring for 1.2h, transfer to a drying oven at 110°C to dry until 1,4-dioxane is completely removed After ringing, remove and cool for later use;

[0084]c. Continue to add 2.3g of PDMS-B component and stir for 10 minutes to make it evenly mixed, then put it into a vacuum drying oven with a vacuum degree of 101Pa and dry for 20 minutes to completely remove the air bubbles in the mixture;

[0085] d. Get the mixture that removes air bubbles in step c and pour it into an acrylic plate mold, and seal the mold for later use;

[0086] e. Magnetic-sensitive rubber curing molding: put the se...

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Abstract

The invention firstly discloses magneto-sensitive rubber with controllable adhesion characteristics and a preparation method of the magneto-sensitive rubber. The elasticity modulus of the material isreduced by adding reduced graphene oxide in the conventional preparation process, so that good adhesion performance and magneto-rheological performance are realized; under the excitation effect of theexternally applied magnetic field, inside ferromagnetic particles act on each other, so that the elasticity modulus, the surface appearance and the like change; therefore the adhesion performance generates reversible change; and through the controllable adhesion characteristics, a novel solution method is provided for the adsorption-desorption mode of the adhesion material. The invention also discloses a device and method for testing the adhesion power of the magneto-sensitive rubber with controllable adhesion characteristics. The device can be respectively used for testing the adhesion powerin the transverse direction and the longitudinal direction; after the magnetic field exertion, the influence of the magnetic field on each element of the device is possibly eliminated; and meanwhile,the device has the functions of changing materials to be tested and regulating the test conditions such as the motor speed, the pressing time, the pulling speed and the magnetic field intensity, so that the influence of various factors on the adhesion performance of the materials to be tested can be analyzed.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and in particular relates to a magnetic-sensitive rubber with controllable adhesion properties and a preparation method thereof, and also relates to a device and a method for testing the adhesion properties of the magnetic-sensitive rubber. Background technique [0002] In recent years, polymer-based composite materials have been widely used in bionic wall-climbing robots and various intelligent mechanical equipment and other fields. Many studies are exploring how to improve the adhesion properties of materials, such as changing the polymer matrix, designing multi-level adhesion arrays, adding nano-additives, etc., and some breakthroughs have been made. However, the high adhesion of the material brings the difficulty of desorption during the working process, which reduces the service life of the material. How to intelligently control the adhesion-desorption of the material has become...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 李锐刘九山杨平安陈婕李熙陈思聪冯丹
Owner CHONGQING UNIV OF POSTS & TELECOMM
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