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Preparation method of in-situ-polymerization graphene microemulsion

An in-situ polymerization and graphene technology, applied in the field of nanomaterials, can solve the problems of no nanomaterials, demulsification, etc., and achieve the effects of strong operability, small dispersed particle size, and avoiding demulsification.

Active Publication Date: 2014-12-03
XINJIANG ZHONGTAI CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Even if a small amount of graphene forms an emulsion, because there is no suitable micelle protective agent, it will break the emulsion soon, forming an emulsion or even a suspension with a large particle size (over 100 nanometers), which does not have the characteristics of nanomaterials

Method used

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  • Preparation method of in-situ-polymerization graphene microemulsion

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Experimental program
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Effect test

Embodiment 1

[0028] In situ polymerization-grade graphene microemulsions were prepared by the following steps:

[0029] Step 1: Add 400mL deionized water to the flask;

[0030] Step 2: Add 3g of intercalation agent sodium lauryl sulfate, fully dissolve;

[0031] Step 3: Add 5g of graphene, stir and disperse for 15 minutes;

[0032] Step 4: Put it into the ultrasonic processor for 15 minutes, and the ultrasonic power is 500 watts;

[0033] Step 5: heat up to 70°C, add 2.4g of n-hexadecanol as an emulsified micellar protective agent;

[0034] Step 6: Add 200 mL of hydroxypropyl methylcellulose ether aqueous solution with a concentration of 2%, and stir thoroughly;

[0035] Step 7: Put it into an ultrasonic processor for processing, the ultrasonic power is 500 watts, and the processing time is 60 minutes.

[0036] Obtain in-situ polymerization grade graphene microemulsion. The particle size was tested with a laser particle size distribution analyzer, see Table 1.

[0037]

Embodiment 2

[0039] In situ polymerization-grade graphene microemulsions were prepared by the following steps:

[0040] Step 1: Add 400mL deionized water to the flask;

[0041] Step 2: Add 10 g of sodium dodecylbenzenesulfonate as an intercalation agent and fully dissolve;

[0042] Step 3: Add 10g of graphene, stir and disperse for 15 minutes;

[0043] Step 4: Put it into an ultrasonic processor for 30 minutes, and the ultrasonic power is 1000 watts;

[0044] Step 5: heat up to 70°C, add 10 g of n-stearyl alcohol, an emulsified micelle protective agent;

[0045] Step 6: Add 200 mL of hydroxypropyl methylcellulose ether aqueous solution with a concentration of 2%, and stir thoroughly;

[0046] Step 7: Put it into an ultrasonic processor for processing, the ultrasonic power is 1000 watts, and the processing time is 120 minutes.

[0047] Obtain in-situ polymerization grade graphene microemulsion. The particle size was tested with a laser particle size distribution analyzer, see Tabl...

Embodiment 3

[0049] In situ polymerization-grade graphene microemulsions were prepared by the following steps:

[0050] Step 1: Add 400mL deionized water to the flask;

[0051] Step 2: Add 5 g of sodium dodecyl sulfate and 5 g of sodium dodecyl benzene sulfonate as intercalation agents, and fully dissolve;

[0052] Step 3: Add 50g of graphene, stir and disperse for 15 minutes;

[0053] Step 4: Put it into the ultrasonic processor for 15 minutes, and the ultrasonic power is 500 watts;

[0054] Step 5: heat up to 70°C, add 30g of n-heptadecanol, an emulsified micellar protective agent;

[0055]Step 6: Add 200 mL of hydroxypropyl methylcellulose ether aqueous solution with a concentration of 2%, and stir thoroughly;

[0056] Step 7: Put it into an ultrasonic processor for processing, the ultrasonic power is 500 watts, and the processing time is 60 minutes.

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Abstract

The invention discloses a preparation method of an in-situ-polymerization graphene microemulsion. The method comprises the following steps: 1. adding 400mL of deionized water into a flask; 2. adding 1-10g of intercalation agent, and sufficiently dissolving; 3. adding 4-50g of graphene, and stirring and dispersing for 15 minutes; 4. treating with an ultrasonic treatment device for 15-30 minutes, wherein the ultrasonic power is greater than 500 watts; 5. heating to 70 DEG C, and adding 2.4-30g of emulsifying micelle protective agent; 6. adding 200mL of 2% hydroxypropyl methylcellulose ether water solution, and sufficiently stirring; and 7. treating in the ultrasonic treatment device for 60-120 minutes, wherein the ultrasonic power is greater than 500 watts. Under the high-power ultrasonic action, the intercalation agent is intercalated into the graphene laminae to obtain the monolayer graphene; the micelle protective agent protects the graphene monolayer to form a nano microscopic micelle; and the graphene is dispersed in the nano monolayer in the microemulsion, can be stored stably, and can be used for in-situ polymerization.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and in particular relates to a method for preparing an in-situ polymerization grade graphene microemulsion. Background technique [0002] In 2004, Andre Geim and Konstantin Novoselov, physicists at the University of Manchester in the United Kingdom, successfully separated graphene from graphite in experiments. Graphene is a new material with a single-layer sheet structure composed of carbon atoms. It is a planar film composed of carbon atoms with sp2 hybrid orbitals forming a hexagonal honeycomb lattice, and a two-dimensional material with a thickness of only one carbon atom. Graphene is the thinnest and hardest nanomaterial known in the world. It is almost completely transparent and only absorbs 2.3% of light; its thermal conductivity is as high as 5300 W / m K, which is higher than that of carbon nanotubes and diamonds. Its electron mobility exceeds 15000 cm 2 / V·s, which is higher than that...

Claims

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Application Information

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IPC IPC(8): C01B31/04
Inventor 赵永禄王雅玲李波王猛韩和良
Owner XINJIANG ZHONGTAI CHEM CO LTD
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