A kind of plant fiber modified fungus powder and preparation method thereof

A plant fiber and fungus technology, which is applied to the field of plant fiber modified fungus powder and its preparation, can solve the problems of loss of association, not stable structure, and need to be enhanced in temperature resistance, so as to increase reactivity, reduce filtration loss, The effect of increasing temperature resistance

Active Publication Date: 2022-06-28
山东得顺源石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some papers and books mention that physical mixing of konjac polysaccharides and plant fiber etherified cellulose is no longer a purely physical mixed solution viscosity in terms of viscosity effect, which can be explained as plant fiber etherified cellulose will destroy konjac The hydrogen bond in the polysaccharide molecule and the binding force with water lead to the viscosity-reducing effect of the two mixtures, and the etherified cellulose of plant fiber and konjac polysaccharide can form a hydrophobic association area, but this structure is not stable enough, and it can only be relieved at high temperature. The speed of carbon chain breakage, the loss of association, and the temperature resistance need to be enhanced. Based on this, the plant fiber cellulose and polysaccharides can be combined through chemical reactions

Method used

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  • A kind of plant fiber modified fungus powder and preparation method thereof
  • A kind of plant fiber modified fungus powder and preparation method thereof
  • A kind of plant fiber modified fungus powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of plant fiber modified fungus powder, which comprises the following steps:

[0025] (1) Pretreatment of plant fibers: Take 50 parts of plant fiber kapok fiber powder, add 5 parts of 1-butyl-3-methylimidazolium tetrafluoroborate, and fully stir and swell at 95°C for 2.5 hours.

[0026] (2) Pretreatment of fungus powder: take 150 parts of oyster mushroom powder, heat it up to 45°C, add 20 parts of a mixture of 2% sodium hypochlorite aqueous solution and 15% tetramethylpiperidine oxide solution, and the mass ratio of the mixture is 5:1, add 12% sodium silicate solution to adjust the pH value to 9.5, and fully react for 0.5h.

[0027] (3) Preparation of plant fiber modified fungus powder: add 100 parts of pretreated kapok fiber powder to 100 parts of 20% methanol solution, raise the temperature to 70°C, add 150 parts of pretreated oyster mushroom powder, add 0.07 tetrabutyl titanate, filled with nitrogen and emptied, and continued to react for 6 hours...

Embodiment 2

[0029] A preparation method of plant fiber modified fungus powder, which comprises the following steps:

[0030] (1) Pretreatment of plant fiber: Take 150 parts of plant fiber wheat straw fiber powder, add 10 parts of 1-butyl-3-methylimidazolium tetrafluoroborate, and fully stir and swell at 55°C for 0.5h.

[0031] (2) Pretreatment of fungus powder: take 200 parts of monkey mushroom powder, heat it up to 55°C, add 40 parts of a mixture of 7% sodium hypochlorite aqueous solution and 5% tetramethylpiperidine oxide solution, and the mass ratio of the mixture is: 5:8, add 5% sodium silicate solution to adjust the pH value to 10.8, fully react for 4.2h.

[0032] (3) Preparation of plant fiber modified fungus powder: add 200 parts of pretreated wheat straw fiber powder to 50 parts of 55% methanol solution, heat up to 95°C, add 350 parts of pretreated monkey mushroom powder, and add 0.05 part Tetrabutyl titanate, nitrogen filled and evacuated, the reaction continued for 8 hours, the...

Embodiment 3

[0034] A preparation method of plant fiber modified fungus powder, which comprises the following steps:

[0035] (1) Pretreatment of plant fibers: Take 100 parts of plant fiber poplar bark fiber powder, add 7 parts of 1-butyl-3-methylimidazolium tetrafluoroborate, and fully stir and swell at 80°C for 2.0h .

[0036] (2) Pretreatment of fungus powder: Take 210 parts of mushroom powder, heat it up to 65°C, add 50 parts of a mixture of 3% sodium bromate aqueous solution and 20% sodium chlorate aqueous solution, and the mass ratio of the two is 1:1 , add 10% sodium silicate solution to adjust the pH value to 10.5, and fully react for 3.2h.

[0037](3) Preparation of plant fiber modified fungus powder: add 120 parts of pretreated poplar bark fiber powder to 107 parts of 30% methanol solution, heat up to 105°C, add 250 parts of pretreated shiitake powder, and add 0.03 part Tetrabutyl titanate, nitrogen filled and evacuated, the reaction continued for 6.7 hours, then the solvent wa...

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Abstract

The invention relates to the technical field of oilfield drilling fluid treatment agents, and discloses a plant fiber modified fungus powder and a preparation method thereof. The preparation method includes three steps: (1) Pretreatment of plant fibers: adding swelling agent to plant fiber powder Full swelling; (2) Pretreatment of fungus powder: add strong oxidizing substances to the fungus powder for reaction; (3) Preparation of plant fiber modified fungus powder: add the pretreated plant fiber to the reaction solvent, add pretreatment after heating The fungus powder, then add the catalyst. The plant fiber modified fungus powder of the present invention is prepared by reacting pretreated plant cellulose with oxidized fungus powder polysaccharide, which not only has a rigid structure of cellulose, but also introduces fungus powder polysaccharides with multiple active functional groups, It has good performances such as temperature resistance and salt resistance, lubrication, viscosity increase, fluid loss reduction, etc., and can be used as an excellent environment-friendly raw material in the field of drilling fluid.

Description

technical field [0001] The invention relates to the technical field of oilfield drilling fluid treatment agents, in particular to a plant fiber modified fungus powder and a preparation method thereof. Background technique [0002] In recent years, a large number of polymer pollutants have entered the ecosystem, which has brought great challenges to the ecological environment. Based on this, renewable natural raw materials continue to receive attention. The inventor found that cellulose is a natural and environmentally friendly material with active functional groups but insoluble in water and most organic solvents by consulting a large number of materials. These fiber materials are rich in sources, low in price, and have unique chemical compositions. Feasible recycled material. Cellulose fibers are mainly composed of cellulose, hemicellulose, lignin, etc., and have a large number of active hydroxyl groups. Intramolecular hydrogen bonds and intermolecular hydrogen bonds make...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00C09K8/035
CPCC08G81/00C09K8/035C09K2208/08C09K2208/34Y02P20/54
Inventor 王树永李文明李晓静张洁刘相兴臧运刚缪江玉王海锋王新强陈亚飞林海萍康乃静李红蕾高士鲁李远梁飞
Owner 山东得顺源石油科技有限公司
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