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Method for preparing nano magnetic ferrite particle and magnetic damping rubber thereof

A nano-magnetic, ferrite particle technology, applied in the direction of dyeing polymer organic compounds, fibrous fillers, etc., can solve the problems of inability to meet the physical and mechanical properties of magnetic shock-absorbing rubber and magnetic shock-absorbing effect, and achieve excellent shock-absorbing effect , low price, the effect of excellent vulcanization performance

Inactive Publication Date: 2008-05-28
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the existing magnetic particles cannot meet the physical and mechanical properties and magnetic shock absorption effect of magnetic shock-absorbing rubber, the present invention provides a preparation method of nano-magnetic ferrite particles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of nanometer magnetic ferrite particle, the FeCl of 1.4g 3 ·6H 2 O, 1.75g ​​of FeSO 4 ·7H 2 O and 0.00025 mol of polyethylene glycol with a molecular weight of 400 were added to 560 ml of distilled water, stirred for 10 minutes, and after mixing evenly, the resulting solution was heated to 30°C, and 40 mL of sodium hydroxide solution with a concentration of 1.1 mol / L was added according to Add dropwise to the obtained solution at a rate of 40 drops per minute, stir for 30 minutes after complete dropwise addition, wash the product (precipitate) with methanol, and then rinse with water until the product is neutral, then place it at 40-60°C If dried in a special oven, nanometer magnetic ferrite particles can be obtained. The product is subjected to TEM, particle size analysis and infrared analysis, and it can be seen that it is a rod-shaped particle with an average particle diameter of 12×45 nanometers and is coated with polyethylene glycol.

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Embodiment 2

[0020] The preparation method of nanometer magnetic ferrite particle, the FeCl of 5.11g 3 ·6H 2 O, 6g of FeSO 4 ·7H 2 O and 0.00025mol polyethylene glycol with a molecular weight of 10000 were added to 560ml of distilled water, stirred for 10 minutes, and after mixing evenly, the resulting solution was heated to 70°C, and 40mL of sodium hydroxide solution with a concentration of 1.75mol / L was added according to Add dropwise to the obtained solution at a rate of 40 drops per minute, stir for 60 minutes after complete dropwise addition, wash the product (precipitate) with methanol, and then rinse with water until the product is neutral, then place it at 40-60°C drying in a special oven to obtain nano-magnetic ferrite particles. The product is subjected to TEM, particle size analysis and infrared analysis, and it is known that it is a spherical particle with an average particle diameter of 18 nanometers and is coated with polyethylene glycol.

[0021]The magnetic shock-absorb...

Embodiment 3

[0023] The preparation method of nanometer magnetic ferrite particle, the FeCl of 3.3g 3 ·6H 2 O, 3.9g of FeSO 4 ·7H 2 O and 0.00025 mol of polyethylene glycol with a molecular weight of 5000 were added to 560 ml of distilled water, stirred for 10 minutes, and after mixing evenly, the resulting solution was heated to 50°C, and 40 mL of sodium hydroxide solution with a concentration of 1.4 mol / L was Add dropwise to the obtained solution at a rate of 40 drops per minute, stir for 45 minutes after complete dropwise addition, wash the product (precipitate) with methanol, and then rinse with water until the product is neutral, then place it at 40-60°C If dried in a special oven, nanometer magnetic ferrite particles can be obtained. The product is subjected to TEM, particle size analysis and infrared analysis, and it is known that it is a spherical particle with an average particle diameter of 20 nanometers and is coated with polyethylene glycol.

[0024] The magnetic shock-abso...

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Abstract

The invention relates to magnetic shock-absorption rubber and nanophase magnetic ferrite particles, specifically a process for preparing the nanophase magnetic ferrite particles and magnetic shock-absorption rubber prepared by using the nanophase magnetic ferrite particles. The invention is used for resolving the problems that the existing magnetic particles can not meet the physically mechanical property and magnetic shock-absorption effect of magnetic shock-absorption rubber and materials of the existing magnetic shock-absorption rubber are not properly selected and matched. 1.4-5.11g FeCl3, 6H2O, 1.75-6g FeSO4, 7H2O and 0.00025 mol polyethylene glycol with molecular weight of 400-10000 are added into 560ml distilled water, and further sodium hydroxide solution is added into the mixture, thereby nanophase magnetic ferrite particles which has certain shape and is coated by polyethylene glycol is achieved. The magnetic shock-absorption rubber is composed of components with percentage by weight of plantation rubber 15-60%, ethylene-propylene-diene monomer 15-60%, nanophase magnetic ferrite particles 5-50%, vulcanized agent 1-10%, vulcanizing activator 1-10%, vulcanization accelerator 1-10%, aging inhibitor 0.1-5% and reinforcing agent 10-40%.

Description

technical field [0001] The invention relates to magnetic shock-absorbing rubber and nano magnetic ferrite particles used for preparing the magnetic shock-absorbing rubber, in particular to a preparation method of the nano-magnetic ferrite particles and magnetic shock-absorbing rubber prepared by using the nano-magnetic ferrite particles. Background technique [0002] The function of the shock absorber is to absorb the vibration and impact caused by the bumping of the vehicle, so as to ensure the balance and reliability of the connection between the power cabin or the engine and the transmission parts, so that the power can be transmitted normally and safely. Therefore, the performance of the vehicle shock absorber itself is good or bad. , Seriously affect the comfort of the vehicle and the occupants, and also affect the stability and reliability of power transmission between the power cabin and the transmission components, and affect the life of the transmission components an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/24C09C3/10C08L7/00C08L23/16C08K9/04C08K3/04
Inventor 刘亚青孙友谊王燕周兴赵贵哲
Owner ZHONGBEI UNIV
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