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Method for preparing modified montmorillonite for polymer/inorganic nano composite material

A technology of nanocomposite materials and montmorillonite, which is applied in the field of preparation of modified montmorillonite for polymer/inorganic nanocomposite materials, can solve the problems of high cost, unfavorable popularization and use, use of water or organic solvents, etc., and achieve The effect of performance improvement, expansion of montmorillonite layer spacing, and broad application prospects

Inactive Publication Date: 2006-06-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to aim at the existing polymer / montmorillonite nano-intercalation composite technology, which needs complicated organic modification of montmorillonite, water or organic solvent should be used in the preparation process, the cost is high, and it is not conducive to popularization Shortcomings such as using etc., provide a kind of simple and feasible preparation method of modified montmorillonite for polymer / inorganic nanocomposite materials, montmorillonite and a kind of organic modifier or mixed organic modifier in solid powder state Direct reaction modification, the obtained modified montmorillonite can be directly used in polymer / montmorillonite nanocomposites to realize effective intercalation of polymer macromolecules between montmorillonite layers and obtain nanocomposites with excellent properties

Method used

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  • Method for preparing modified montmorillonite for polymer/inorganic nano composite material
  • Method for preparing modified montmorillonite for polymer/inorganic nano composite material
  • Method for preparing modified montmorillonite for polymer/inorganic nano composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0029] (1) Get 100 grams of montmorillonite at room temperature, add 1 gram of cetyltrimethylammonium chloride, and stir well;

[0030] (2) The above mixture was stirred and reacted at 150° C. for 10 minutes;

[0031] (3) above-mentioned reaction product is cooled to room temperature and promptly obtains modified montmorillonite of the present invention;

[0032] Take 100 grams of natural rubber, add various compounding agents and the above-mentioned modified montmorillonite according to the commonly used rubber formula, carry out mixing and vulcanization, and the properties of the obtained vulcanized rubber are shown in Table 1. It can be seen from Table 1 that the performance of natural rubber / modified montmorillonite nanocomposites is significantly better than that of natural rubber and unmodified montmorillonite composites, adding 1-10 parts of modified montmorillonite can show significant Reinforcing effect and improved aging resistance.

[0033] natural oak ...

Embodiment 2

[0038] (1) Take 100 grams of montmorillonite and heat it to 50°C, add 50 grams of γ-(2,3 glycidoxy)propyltrimethylsilane, and stir well;

[0039] (2) Stir and react the above mixture at 50°C for 30min;

[0040] (3) above-mentioned reaction product is cooled to room temperature and promptly obtains modified montmorillonite of the present invention;

[0041] Take 100 grams of butadiene rubber, add 5 grams of modified montmorillonite, and add various compounding agents according to the commonly used rubber formula, carry out mixing and vulcanization, and the properties of the obtained vulcanized rubber are shown in Table 2. It can be seen from Table 2 that the performance of butadiene rubber / modified montmorillonite nanocomposites is significantly better than that of butadiene rubber / montmorillonite composites, and 5 parts of modified montmorillonite can show a similar performance to 20 parts of carbon black. Significant reinforcing effect.

[0042] Butadiene rubber ...

Embodiment 3

[0046] (1) Take 100 grams of montmorillonite and heat it to 80°C, add caprolactam and 15 grams each of isopropoxytitanium triisostearate, and stir well;

[0047] (2) Fully stir the above mixture at 100°C for 100 minutes;

[0048] (3) cooling the above reaction product to room temperature to obtain organically modified montmorillonite.

[0049] Take 100 grams of styrene-butadiene rubber, add 30 grams of modified montmorillonite, and add various compounding agents according to the commonly used rubber formula for mixing and vulcanization. Carry out X-ray diffraction analysis to the obtained vulcanizate, find that the interlayer spacing of montmorillonite in this material expands to 4.7nm from original 1.5nm, illustrate that the modified montmorillonite prepared by this method has successfully produced rubber / Montmorillonite nanocomposites.

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Abstract

The invention relates to a simple and feasible preparation method of modified montmorillonite for polymer / inorganic nanocomposite materials. After reaction modification, the obtained modified montmorillonite can be directly used in polymer / montmorillonite nanocomposite materials to realize effective intercalation of polymer macromolecules between montmorillonite layers and obtain nanocomposite materials with excellent performance. The method has the advantages of simplicity, low production cost, no need to use water or solvent, no environmental pollution, etc., and has good industrial application prospects.

Description

technical field [0001] The invention relates to the field of polymer / inorganic nanocomposite materials, in particular to a preparation method of modified montmorillonite for polymer / inorganic nanocomposite materials. Background technique [0002] Nanocomposites (Nanocomposites) refer to composite materials whose dispersed phase scale is less than 100 nm in at least one dimension. Due to the small size and large specific surface area of ​​the nanophase, the number of surface atoms, surface tension and surface energy increase sharply with the decrease of particle size, thus having significant small size effect, quantum size effect, surface effect and macroscopic quantum tunneling effect, etc. , endowing materials with many novel properties and rules, and showing broad prospects for the research and application of nanocomposites. [0003] Nanocomposite materials composed of polymers and inorganic substances are the most active nanocomposite materials in recent years. The comb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/04C08L101/00
Inventor 王小萍贾德民
Owner SOUTH CHINA UNIV OF TECH
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