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Rectorite organic compound for synthesizing nano compound material and preparation method thereof

A nanocomposite material and rectorite technology, applied in the field of organic polymer compounds, can solve the problems of unspecified mineral content, need for special equipment, increase energy consumption, etc., and achieve excellent high temperature thermal stability and excellent mechanical properties.

Inactive Publication Date: 2008-10-01
湖北名流累托石科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the above-mentioned patents is that the role of intercalation is overemphasized, and the following points are ignored: 1. After ion exchange occurs between the organic cation and the mineral layer, the interlayer charge is neutralized and the charge has been satisfied; 2. The interlayer cation itself Occupies space, has volume effect
In 1999, Sorotia Company applied for "Method for Preparing Polymer Nanocomposite Composition", patent application number 99805032.6, this method uses mechanical device, thermal shock, pressure change, ultrasonic wave, high-speed shear homogenization before solid state polymerization Dissociation of modified aluminosilicate minerals, and then solid-state polymerization to prepare polyamide / mineral nanocomposites. The disadvantage is that special equipment is required and energy consumption is increased.
[0003] In addition, in the above-mentioned documents, only the cation exchange capacity CEC of aluminosilicate minerals is required, but the content of minerals is not specified, which is obviously not enough, because the CEC size of aluminosilicate mineral samples is not only related to the mineral content, and largely depends on the mineral structure and origin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Put 10 parts of sodium-based rectorite in a reaction kettle by mass %, add 500 parts of deionized water, stir with a mixer at high speed for 0.5 h, and form a suspension of rectorite, add 2.0 parts of octadecyl di Methallyl ammonium chloride was reacted at room temperature for 4 hours to generate rectorite / organic compound suspension, which was separated, filtered, dehydrated, and washed with acidic silver nitrate solution ρ(AgNO 3 )=1g / L Check that the filtrate is free of Cl - react, dry at 80°C until the water content is ≤3%, and grind to 200 meshes to obtain the rectorite / organic compound used for synthesizing nanocomposite materials of the present invention.

Embodiment 2

[0022] Example 2: Put 10 parts of sodium-based rectorite in a reaction kettle by mass %, add 500 parts of deionized water, stir at high speed for 0.5 h, add 1.2 parts of trimethylvinylbenzyl ammonium chloride, and react at room temperature 8h, filtered and washed with acidic silver nitrate solution ρ(AgNO 3 )=1g / L Check that the filtrate is free of Cl - reaction. Dried at 100°C until the water content is ≤3%, and ground to 200 meshes to obtain the rectorite / organic compound used for synthesizing nanocomposite materials of the present invention.

Embodiment 3

[0023] Example 3: Put 10 parts of lithium-based rectorite in a reaction kettle by mass %, add 800 parts of deionized water, and stir at a high speed for 0.5 h to obtain a rectorite suspension; take 1.5 parts of dimethyl diallyl ammonium chloride, add 200 parts of water, stir well to obtain solution A. Then solution A is slowly added dropwise to the suspension, stirred and reacted for 2h, filtered and washed with acidic silver nitrate solution until ρ% (AgNO3) = 1g / L to check that the filtrate is free of Cl - Reaction, drying in a vacuum dryer at 60°C until the water content is ≤3%, and grinding to 200 meshes to obtain the rectorite / organic compound used for synthesizing nanocomposite materials of the present invention.

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Abstract

The present invention relates to a kind of rectorite / organic monomer composite material for synthesizing nano composite material and its preparation method. Its preparation method includes the following steps: dispering the rectorite in dispersing agent, high-speed stirring to obtain mud suspension, then adding organic monomer cation exchanger or organic monomer and protonation reagent and making them produce ion exchange reaction for 0.5-8h. at room temp., and separating rectorite / organic flocculate, dehydrating, washing, drying and breaking so as to obtain the invented finished product. Said composite is a functional filler capable of producing cross-linking reaction with polymer substrate, and is suitable for synthesizing plastic or rubber polymer nano composite material.

Description

technical field [0001] The invention relates to a rectorite / organic compound used for synthesizing nano-composite materials and its preparation method, specifically a functional filler capable of polymerizing and cross-linking with a polymer matrix, belonging to organic macromolecular compounds field. Background technique [0002] In order to improve the mechanical strength and thermal properties of polymers such as plastics or rubber, it is often used to add modified inorganic mineral fillers to the polymer matrix, because the properties of the organic molecules on the surface of the modified mineral and the polymer phase interface are too different. Large, the binding force is relatively weak, so it is very limited to improve the performance of the polymer with fillers modified by ordinary coupling agents. In 1988, U.S. Patent No. 4,739,007 disclosed a method for preparing polyamide / clay nanocomposite materials by intercalation method. The composite materials produced hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/08
Inventor 陈济美汪昌秀姚琦
Owner 湖北名流累托石科技股份有限公司
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