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A kind of polymer microsphere for heterogeneous regulation and preparation method thereof

A polymer and heterogeneous technology, applied in the direction of microsphere preparation, microcapsule preparation, etc., can solve problems such as dumping, and achieve the effects of reducing waste, improving sweep efficiency, and improving oil recovery

Active Publication Date: 2021-11-23
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The toner remaining in the printer toner cartridge and waste toner storage box is usually thrown away directly

Method used

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  • A kind of polymer microsphere for heterogeneous regulation and preparation method thereof
  • A kind of polymer microsphere for heterogeneous regulation and preparation method thereof
  • A kind of polymer microsphere for heterogeneous regulation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] To add 8 g of waste printing powder to 150 ml of cone flakes, 30 g of dimethylformamide was added, stirred and dispersed; then 16 g of monoalkoxyl titanate into a tapered bottle, sealed tapered bottles, stir, oil bath 85 ° C Chemical coupling reaction 12H, purified, dried to obtain a waste printing powder of monoalkoxy titanate chemical coupling. 3 g of monoalkoxy titanate chemically coupled waste printing powder was added to 150 ml of tapered bottle, then 15 g of dimethylformamide, stirred and dispersed, 6 g of polyoxyethylene stearate (weight average molecular weight 4670 g / mol) Add a tapered bottle, the oil bath is 90 ° C for 12 h to obtain a polymer microsphere 1.

Embodiment 2

[0024] Add 10 g of waste printing powder to 150ml tapered flask, 50 g of dimethylformamide, stirred, then add 20 g of monoalkoxy titanate to tapered bottles, seal tapered bottles, stir, oil bath 85 ° C Chemical coupling reaction 12H, purified, dried to obtain a waste printing powder of monoalkoxy titanate chemical coupling. 5 g of a monoalkoxyl titanate is added to a 150 ml cone flame, then 25 g of dimethylformamide, stirred and disperse, 10 g of polyoxyethylene stearate (weight average molecular weight 9800g / mol) Add a tapered bottle, the oil bath is 20 ° C for 12 h to obtain a polymer microsphere 2.

Embodiment 3

[0026] Add 9g waste printing powder to 150ml tapered flasks, add 40 g of dimethylformamide, stirred, then add 18 g of monoalkoxyl titanate to conical bottles, seal tapered bottles, stir, oil bath 85 ° C 85 ° C Chemical coupling reaction 12H, purified, dried to obtain a waste printing powder of monoalkoxy titanate chemical coupling. 4 g of monoalkoxy titanate is added to a 150ml cone bottle, then 20 g of dimethylformamide, stirred and dispersed, and 9 g of polyoxyethylene stearate (weight average molecular weight 6200 g / mol) Add a tapered bottle, the oil bath is 20 ° C for 12 h to obtain a polymer microsphere 3.

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PUM

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Abstract

The invention discloses a polymer microsphere for regulating heterogeneity and a preparation method thereof. The preparation method is as follows: step 1, using waste toner as a raw material, and mixing the waste toner and a coupling agent in a solvent dimethylformamide The chemical coupling reaction was carried out in an oil bath at 85°C for 12 hours, purified and dried to obtain waste toner chemically coupled with the coupling agent. Step 2. In the solvent dimethylformamide, react the waste toner obtained in step 1 with polyoxyethylene stearate in an oil bath at 90° C. for 12 hours to obtain micron-sized polymer microspheres. The coupling agent is one or a combination of monoalkoxy titanate, triisopropyl aluminate, and polyethylene glycol trimethoxysilyl propyl ether. Waste toner is waste toner for printing. The invention not only recycles the waste graphite, but also the prepared polymer microspheres can effectively regulate the dominant channel of the oil reservoir, improve the liquid absorption profile of the oil layer, improve the sweep efficiency of the low-permeability area, and increase the oil recovery rate of the oil reservoir.

Description

Technical field [0001] The present invention relates to the field of oilfield chemistry and oilfield mining techniques, in particular, a non-homogeneous regulatory polymer microspheres and preparation methods based on waste toner. Background technique [0002] Polymer microspheres are a new technique for achieving deep ancillation and improve water injection development, which has great potential in improving the harvest of old oilfield. The traditional polymer microsphere prepared method is usually used in reverse-phase emulsion polymerization. Although the microspheres prepared by such methods have the advantages of high polymerization rate, the molecular weight is controllable, the particle distribution is uniform, but there is still an emulsifier is difficult to remove, cost High, polymer stability, high reaction conditions, and complex steps. The present invention is proposed based on the lack of conventional polymer microsphere preparation methods. [0003] Polymer microsph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/14
CPCB01J13/14
Inventor 刘锐陶阳蒲万芬杜代军施鹏田开平
Owner SOUTHWEST PETROLEUM UNIV
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