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Methyl acrylate metal salt-intercalated and modified kaolin as well as preparation method thereof

A technology of methacrylic acid and sodium methacrylate, applied in non-metallic elements, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as single function of kaolin and insignificant improvement of mechanical properties of rubber materials

Active Publication Date: 2014-01-29
JIANGSU QIXIANG HIGH NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these modification methods have a common problem, that is, they only improve the dispersion and compatibility of kaolin in the rubber matrix, so that the performance of kaolin itself can be reflected, and the kaolin obtained by this modification method has a single function. The mechanical properties of rubber materials are not significantly improved

Method used

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  • Methyl acrylate metal salt-intercalated and modified kaolin as well as preparation method thereof
  • Methyl acrylate metal salt-intercalated and modified kaolin as well as preparation method thereof
  • Methyl acrylate metal salt-intercalated and modified kaolin as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Pretreatment of kaolin: Disperse 10 g of kaolin in 200 ml of N,N-dimethylformamide (DMF) solvent, and ultrasonicate at a constant temperature of 60°C for about 2 hours to obtain a milky white kaolin dispersion.

[0031] (2) Kaolin suspension: The kaolin dispersion obtained in step (1) was centrifuged at high speed, the DMF solvent was removed, and 9.60 g of white kaolin stable phase was obtained after vacuum drying for 12 hours; after that, the obtained kaolin was stabilized The phase was treated in a muffle furnace at 500°C for 2 h, and then the stable phase was dispersed in 100 ml of methanol, and ultrasonicated for 0.5 h to obtain a uniformly dispersed kaolin suspension.

[0032](3) Preparation of zinc methacrylate kaolin (ZDMA-Kaolin) by intercalation modification: first, zinc chloride was dissolved in distilled water to prepare a 620 mg / ml zinc chloride aqueous solution. Add 20ml of zinc chloride aqueous solution to the kaolin suspension obtained in the above s...

Embodiment 2

[0035] (1) Pretreatment of kaolin: Disperse 10 g of kaolin in 300 ml of N,N-dimethylformamide (DMF) solution, and ultrasonicate at 60°C for 2 hours to obtain a milky white kaolin dispersion.

[0036] (2) Kaolin suspension: The kaolin dispersion obtained in step (1) was centrifuged at high speed, the DMF solvent was removed, and 9.60 g of a white kaolin stable phase was obtained after vacuum drying for 12 hours. Afterwards, the obtained kaolin stable phase was placed in a muffle furnace at 500° C. for 3 h, and then the stable phase was dispersed in 100 ml of absolute ethanol, and ultrasonicated for 0.5 h to obtain a uniformly dispersed kaolin suspension.

[0037] (3) Preparation of zinc methacrylate functionalized kaolin by intercalation modification: first, zinc chloride was dissolved in distilled water to prepare a 544 mg / ml zinc chloride aqueous solution. Add 30ml of zinc chloride aqueous solution to the kaolin suspension obtained in the above step (2), and ultrasonicate for...

Embodiment 3

[0040] (1) Pretreatment of kaolin: Disperse 10g of kaolin in 200ml of N,N-dimethylformamide (DMF) solution, and ultrasonicate at a constant temperature of 60°C for about 2 hours to obtain a milky white kaolin dispersion.

[0041] (2) Kaolin suspension: The kaolin dispersion obtained in step (1) was centrifuged at high speed, the DMF solvent was removed, and 9.60 g of a white kaolin stable phase was obtained after vacuum drying for 12 hours. Afterwards, the obtained kaolin stable phase was placed in a muffle furnace at 500° C. for 3 h, and then the stable phase was dispersed in 100 ml of absolute ethanol, and ultrasonicated for 0.5 h to obtain a uniformly dispersed kaolin suspension.

[0042] (3) Preparation of magnesium methacrylate functionalized kaolin by intercalation modification: firstly, magnesium chloride was dissolved in distilled water to prepare a 365 mg / ml magnesium chloride aqueous solution. Add 40ml of magnesium chloride aqueous solution to the kaolin suspension o...

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Abstract

The invention discloses methyl acrylate metal salt-intercalated and modified kaolin as well as a preparation method thereof, wherein the preparation method comprises the following steps: (1) pre-treatment of kaolin: the kaolin is dispersed in an N, N- dimethyl formamide (DFM) solvent, ultrasonically treated for about 2 hours at the constant temperature of 60 DEG C to obtain milk white kaolin dispersion liquid; (2) preparation of kaolin suspension liquid: the kaolin dispersion liquid obtained in the step (1) is centrifuged and separated at a high speed to remove the N, N- dimethyl formamide (DFM) solvent, and dried for 12 hours in vacuum to obtain a white kaolin stable phase; and then, the obtained kaolin stable phase is treated for 2-6 hours at 500 DEG C-650 DEG C in a muffle furnace, dispersed in an organic solvent and ultrasonically treated for 0.5 hour-3hours to obtain uniformly dispersed kaolin suspension liquid; and (3) preparation of methyl acrylate metal salt kaolin by intercalation and modification: wherein metal chloride aqueous liquor is added into the kaolin suspension liquid obtained in the step (2), ultrasonically treated for 1 hour-5 hours under power of 160W-400W, dropwise added with methyl sodium acrylate liquor in the suspension liquid, and uniformly stirred; and the solvent is evaporated and removed under 120 DEG C to obtain white methyl acrylate metal salt-intercalated and modified kaolin powder.

Description

technical field [0001] The invention relates to a preparation method of functionalized kaolin, in particular to a kaolin modified by metal methacrylic acid intercalation and a preparation method thereof. Background technique [0002] Kaolin is a 1:1 type layered silicate, its crystal unit is formed by a layer of silicon-oxygen tetrahedron and a layer of aluminum-oxygen octahedron interconnected by common oxygen. Its crystal structure theory is A1 4 [Si 4 o 10 ][OH] 8 , A1 2 o 3 41.2%, SiO 2 48.0%, H 2 O10.8%, due to the substitution of isomorphism, often contains a small amount of Fe, Mg, Mn, Cu, Cr, etc. The structural units of kaolin are layered stacks connected by hydrogen bonds and van der Waals forces. The pure kaolin has high whiteness, easy to disperse and suspend in water, good plasticity and high sinterability, excellent electrical insulation and good resistance to acid solubility, low cation exchange capacity, and high refractoriness. And other physical a...

Claims

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Application Information

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IPC IPC(8): C01B33/44
Inventor 彭华龙姚翔郑洪良
Owner JIANGSU QIXIANG HIGH NEW MATERIAL
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