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Preparation method of organic-inorganic composite

An inorganic composite material and inorganic technology, applied in the direction of inorganic pigment treatment, dyed organosilicon compound treatment, dyed polymer organic compound treatment, etc., can solve the problem of increasing the cost of organic-inorganic composite materials, the inability to form inorganic phases in situ, and the lack of There are problems such as reactivity, so as to achieve the effects of reducing preparation costs, reducing energy consumption, and slowing stress release

Active Publication Date: 2011-08-10
JIANGSU JIUMO HIGH TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional dispersion mostly uses ultrasonic dispersion and high-energy mechanical stirring, or the combined use of ultrasonic and stirring to improve the dispersion of the inorganic phase. These dispersion methods sometimes cannot fundamentally solve the problem of difficult dispersion of the inorganic phase, and also increase the organic phase. - Cost of inorganic composite preparation
Modern dispersion means include in-situ polymerization and in-situ generation (in situ generation of inorganic phase in the polymer matrix), these two means are limited by the system, for example, the polymer system is not reactive, in-situ polymerization is not suitable; so The inorganic phase to be introduced cannot be generated in situ in the polymer matrix, and in situ generation is not applicable

Method used

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  • Preparation method of organic-inorganic composite
  • Preparation method of organic-inorganic composite
  • Preparation method of organic-inorganic composite

Examples

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Effect test

Embodiment 1

[0028] Example 1: Mix 1g of ZSM-5 molecular sieve with a particle size of 300nm and 60mL of n-heptane, stir at a low speed for 2h, add 0.1g of n-octyltriethoxysilane to react for 2h, then add 0.5g of Methylsiloxane (PDMS), after stirring at a low speed for 8 hours, add 4.5g of PDMS polymer and 25mL of n-heptane, and stir at a low speed for 4 hours to obtain a uniformly dispersed and very stable ZSM-5-PDMS composite material precursor solution, Finally, the film was scraped on the glass plate to obtain a highly dispersed organic-inorganic composite material of ZSM-5 molecular sieve doped with PDMS.

Embodiment 2

[0031] Example 2: Mix 0.5g of NaA molecular sieve with a particle size of 1 μm with 40mL of deionized water, stir at a low speed for 3 hours, add 0.5g of 3-aminopropyltriethoxysilane, and react for 1 hour, then add 0.5g of polyethylene Alcohol (PVA), after stirring at a low speed for 8 hours, add 4.5g of PVA polymer and 30mL of deionized water, and stir at a low speed for 4 hours to obtain a uniformly dispersed and stable NaA-PVA composite material precursor solution, and finally through the coating process, A highly dispersed NaA molecular sieve doped PVA organic-inorganic composite material can be obtained.

Embodiment 3

[0033] Example 3: Take 5g of titanium ore phase nano-scale barium, strontium, cobalt and iron with a particle size of 100nm and mix them with 60mL of dimethylformamide (DMF), stir at a low speed for 4h, then add 1g of diethylaminomethyltriethoxysilane to react After 1 hour, add 0.5 g of polyethersulfone (PES), stir at a low speed for 8 hours, then add 4.5 g of PES polymer and 20 mL of DMF, and stir for 4 hours at a low speed to obtain a uniformly dispersed and very stable barium-strontium-cobalt-iron-PES composite material The precursor liquid, and finally through extrusion molding, can get highly dispersed barium strontium cobalt iron doped PES organic-inorganic composite material.

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Abstract

The invention relates to a preparation method of an organic-inorganic composite, which is a dispersion method for introducing inorganic phase in polymer matrix evenly. The method is as follows: in one reactor, an organic matter is used to cover the inorganic introduced matter and then form a core-shell structure with an central inorganic core and an outer organic shell, thus the matching rate of the polarities of the inorganic phase and the polymer can be increased; and the inorganic introduced matter used for forming the core-shell structure is not required to be separated, the other components involved in the formation of the organic-inorganic composite are directly introduced in the reactor to stir in low speed and prepare a homogeneous solution, a moulding technology and the corresponding subsequent treatments are performed to form the organic-inorganic composite with highly dispersed inorganic introduced matter. Without adopting the means such as ultrasonic treatment and high-energy mechanical agitation, the energy consumption in the preparation of the organic-inorganic composite can be reduced, the preparation cost of the organic-inorganic composite can be reduced and the preparation method has wide application prospect.

Description

technical field [0001] The invention relates to the field of composite material preparation, in particular to a method for preparing an organic-inorganic composite material by uniformly introducing an inorganic phase into a polymer matrix. Background technique [0002] At present, in the field of material preparation, organic-inorganic composite materials can give full play to the respective advantages of polymer matrix and inorganic phase, and can learn from each other to produce synergistic effects, which greatly improves the comprehensive performance of organic-inorganic composite materials. Great attention. The density of the inorganic phase is generally higher than that of the polymer matrix, so the inorganic phase is easy to settle in the solution of the polymer matrix, and the nano-scale inorganic phase, due to its large surface area, is easy to agglomerate between nanoparticles. Therefore, the key technical difficulty in the preparation of organic-inorganic composit...

Claims

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Application Information

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IPC IPC(8): C08L29/04C08L71/08C08L5/08C08L83/04C08L81/06C08L27/16C08K9/10C08K9/04C08K9/06C08K3/36C08K3/22C08K3/34C09C3/00C09C3/10C09C3/12C09C3/08
Inventor 金万勤卫旺刘公平徐南平
Owner JIANGSU JIUMO HIGH TECH CO LTD
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