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Polymer microsphere for heterogeneous regulation and control and preparation method thereof

A polymer, heterogeneous technology, applied in the preparation of microspheres, microcapsule preparations, etc., can solve problems such as dumping, reduce waste, improve liquid absorption profile, and improve oil recovery.

Active Publication Date: 2021-07-20
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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  • Polymer microsphere for heterogeneous regulation and control and preparation method thereof
  • Polymer microsphere for heterogeneous regulation and control and preparation method thereof
  • Polymer microsphere for heterogeneous regulation and control and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 8g of waste printing powder to a 150mL conical flask, add 30g of dimethylformamide, stir to disperse; then add 16g of monoalkoxy titanate to the conical flask, seal the conical flask, stir, and oil bath at 85°C The chemical coupling reaction was carried out for 12 hours, purified and dried to obtain monoalkoxy titanate chemically coupled waste printing powder. In a 150mL Erlenmeyer flask, add 3g monoalkoxy titanate chemically coupled waste printing powder, then add 15g dimethylformamide, stir and disperse, and mix 6g polyoxyethylene stearate (weight average molecular weight 4670g / mol ) into an Erlenmeyer flask, reacted in an oil bath at 90° C. for 12 hours, and obtained polymer microspheres 1 .

Embodiment 2

[0024] Add 10g of waste printing powder to a 150mL conical flask, add 50g of dimethylformamide, stir to disperse, then add 20g of monoalkoxy titanate to the conical flask, seal the conical flask, stir, and oil bath at 85°C The chemical coupling reaction was carried out for 12 hours, purified and dried to obtain monoalkoxy titanate chemically coupled waste printing powder. In a 150mL Erlenmeyer flask, add 5g monoalkoxy titanate chemically coupled waste printing powder, then add 25g dimethylformamide, stir and disperse, and 10g polyoxyethylene stearate (weight average molecular weight 9800g / mol ) into an Erlenmeyer flask, and reacted in an oil bath at 90° C. for 12 hours to obtain polymer microspheres 2 .

Embodiment 3

[0026] Add 9g of waste printing powder to a 150mL conical flask, add 40g of dimethylformamide, stir to disperse, then add 18g of monoalkoxy titanate to the conical flask, seal the conical flask, stir, and oil bath at 85°C The chemical coupling reaction was carried out for 12 hours, purified and dried to obtain monoalkoxy titanate chemically coupled waste printing powder. In a 150mL Erlenmeyer flask, add 4g monoalkoxy titanate chemically coupled waste printing powder, then add 20g dimethylformamide, stir and disperse, and 9g polyoxyethylene stearate (weight average molecular weight 6200g / mol ) into an Erlenmeyer flask, and reacted in an oil bath at 90° C. for 12 hours to obtain polymer microspheres 3 .

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Abstract

The invention discloses a polymer microsphere for heterogeneous regulation and control and a preparation method thereof, and the preparation method comprises the following steps: step 1, taking waste powdered ink as a raw material, carrying out chemical coupling reaction on the waste powdered ink and a coupling agent in an oil bath of 85 DEG C in a solvent dimethylformamide for 12 hours, and conducting purifying and drying to obtain waste powdered ink chemically coupled by the coupling agent; and step 2, in a solvent dimethylformamide, conducting reaction on the waste powdered ink obtained in the step 1 and polyoxyethylene stearate in an oil bath at 90 DEG C for 12 h, so as to obtain micron-sized polymer microspheres. The coupling agent is one or a combination of mono-alkoxy titanate, triisopropyl aluminate and polyethylene glycol trimethoxy silicon propyl ether. The waste powdered ink is waste printing powder for printing. According to the method, waste graphite is recycled, and the prepared polymer microspheres effectively regulate and control dominant channels of an oil reservoir, improve the liquid absorption profile of an oil layer, improve the sweep efficiency of a low-permeability area and improve the oil recovery rate of the oil reservoir.

Description

technical field [0001] The invention relates to the technical fields of oilfield chemistry and oilfield exploitation, in particular to a polymer microsphere for regulating heterogeneity based on waste toner and a preparation method thereof. Background technique [0002] As a new technology to achieve deep reservoir profile control and improve water flooding development, polymer microspheres have great potential in improving the recovery of mature oilfields. The traditional method of preparing polymer microspheres is usually by inverse emulsion polymerization. Although the microspheres prepared by this method have the advantages of high polymerization rate, controllable molecular weight, and uniform particle distribution, there are still difficulties in removing the emulsifier and cost. High, poor polymerization stability, high requirements for reaction conditions, complex process and other shortcomings. The present invention is proposed based on the shortcomings of traditio...

Claims

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Application Information

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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