Preparation method of magnetic nano-modified methacrylate magnetic impregnating agent for metal casting

A methacrylate and magnetic nanotechnology, applied in the field of composite impregnants, can solve the problems of large differences, low density, poor heat resistance, etc., and achieve the effect of improving oil resistance

Inactive Publication Date: 2017-12-08
山东德瑞高分子材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the impregnating agent is relatively soft, has low modulus, low strength, poor heat resistance, and low density, which is very different from metal

Method used

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  • Preparation method of magnetic nano-modified methacrylate magnetic impregnating agent for metal casting
  • Preparation method of magnetic nano-modified methacrylate magnetic impregnating agent for metal casting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Using 1 kg of nano-ferric oxide as raw material, add 0.5 kg of hydrochloric acid, react at 30 ° C for 2 h, use 2 kg of ammonia water as a precipitant, add 3 kg of n-dodecane, react at 60 ° C for 1 h, add 0.6 kg of oleic acid, 0.02kg of 3-oxo-1-cyclopentane carboxylic acid, 0.02kg of histamine phosphate, 0.01kg of tetrakis hydroxymethylphosphorus sulfate, reaction temperature 70℃, reaction time 2h, product oil and water separation, dehydration and drying, obtained Stable suspensions containing magnetic nanoparticles;

[0024] (2) Take 1kg of the stable suspension of the above step (1), 2kg of propyl methacrylate, and 0.028kg of benzoyl peroxide, the stirring speed is 100rpm, the temperature is 60°C, the air pressure is 0.5atm, and the reaction time is 1h, add Anionic polyacrylamide 0.01kg, lauryl sulfate ammonium salt 0.05kg, sorbitol 0.04kg, pinacol 0.05kg, stirred and reacted at 70°C for 2 hours to obtain a modified suspension;

[0025] (3) After the suspension to...

Embodiment 2

[0029] (1) Take 1 kg of ferric oxide as raw material, add 2 kg of hydrochloric acid, react at 30 ° C for 2 h, use 5 kg of ammonia water as a precipitant, add 4 kg of propane, react at 100 ° C for 1 h, add 0.8 kg of oleic acid, 3-oxo- 0.06kg of 1-cyclopentane carboxylic acid, 0.07kg of histamine phosphate, 0.03kg of tetrakis hydroxymethyl phosphorus sulfate, reaction temperature 70 ℃, reaction time 3h, product oil and water separation, dehydration and drying, prepared magnetic nanoparticles stable suspension;

[0030] (2) Take 2kg of the stable suspension of the above step (1), 3kg of butyl methacrylate, 0.04kg of cumene hydroperoxide, the stirring speed is 200rpm, the temperature is 60°C, the air pressure is 0.5atm, and the reaction time is 1h. Add 0.02kg of anionic polyacrylamide, 0.07kg of ammonium lauryl sulfate, 0.06kg of sorbitol, and 0.08kg of pinacol, and stir at 70°C for 2 hours to obtain a modified suspension;

[0031](3) After the suspension to be modified is cooled...

Embodiment 3

[0035] (1) Using 1 kg of nano-titanium dioxide as raw material, add 1.25 kg of hydrochloric acid, react at 30 ° C for 2 h, use 3.5 kg of ammonia water as a precipitant, add 3.5 kg of n-hexane, react at 80 ° C for 1 h, add 0.7 kg of oleic acid, 3-oxo Dai-1-cyclopentane carboxylic acid 0.04kg, histamine phosphate 0.045kg, tetrakis hydroxymethyl phosphorus sulfate 0.02kg, reaction temperature 70 ℃, reaction time 2.5h, product oil and water separation, dehydration and drying, prepared magnetic stable suspension of nanoparticles;

[0036] (2) Take 1.5kg of the stable suspension of the above step (1), 2.5g of methacrylate monomer, 0.034kg of tert-butyl peroxytoluate, stir at 150rpm, temperature at 60°C, and air pressure at 0.5atm , reaction time 1h, add anionic polyacrylamide 0.015kg, lauryl sulfate ammonium salt 0.06kg, sorbitol 0.05kg, pinacol 0.065kg, stir and react at 70°C for 2h to obtain a modified suspension;

[0037] (3) After the suspension to be modified is cooled, add 0....

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Abstract

The invention relates to a method for a magnetic nanoparticle modified methacrylate magnetic impregnant for metal castings. The impregnant comprises magnetic nanoparticles wrapped with organics, methacrylate, an initiator and a polymerization inhibitor. A traditional compound technology of preparation of the methacrylate and functionalized nanoparticles is introduced in the preparation process of the impregnant to prepare the functionalized impregnant. The impregnant has high thermal performance and hardness while meeting the traditional requirements for low viscosity, nontoxicity and non volatility, and is a novel multifunctional sealing reinforcing agent for metal products.

Description

technical field [0001] The invention relates to a compound impregnating agent for preparing sealing reinforcement and functionalized magnetic nanoparticles and methacrylate with good dispersibility, high saturation magnetization and low viscosity, in particular to magnetic nano-modified methacrylate for metal castings A preparation method of an acrylate magnetic impregnating agent. Background technique [0002] Nanoparticle materials, also known as ultrafine particle materials, are composed of nanoparticles. Nanoparticles generally refer to particles with one dimension ranging from 1 to 100 nm in three-dimensional dimensions, which are located in the transition region between atomic clusters and macroscopic objects. Nanomaterials usually have surface effect, small size effect and macroscopic quantum tunneling effect. Nanomaterials show many exotic properties, that is, the optical, thermal, electrical, magnetic, mechanical, and chemical properties of nanomaterials will be s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18
CPCB22D31/005
Inventor 张思银
Owner 山东德瑞高分子材料股份有限公司
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