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A foaming hybrid polymer plugging material and its preparation method

A plugging material and polymer technology, applied in the field of foamed hybrid polymer plugging material and its preparation, can solve the problems of poor flame retardant effect, heat accumulation, poor expansion effect, etc., to improve the control range and ensure Excellent safety performance and flame retardant performance

Active Publication Date: 2021-10-22
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common plugging materials mainly include organic materials such as polyurethane materials and urea-formaldehyde resins, which have high cost, poor flame retardant effect, high temperature in the reaction process, easy to cause heat accumulation, and accelerate coal spontaneous combustion when used in coal rocks Oxidation process, and in high humidity environment, the foaming multiple increases too fast, and the toxicity is relatively high, while the inorganic materials such as sodium silicate chemical slurry and cement-based slurry materials have too slow reaction speed, cannot seal the cracks in time, and have the expansion effect Poor, short penetration distance and other disadvantages

Method used

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  • A foaming hybrid polymer plugging material and its preparation method
  • A foaming hybrid polymer plugging material and its preparation method
  • A foaming hybrid polymer plugging material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dried in a 200L stainless steel stirred within the container, were weighed polyisocyanate (toluene diisocyanate) 83 parts, 17 parts of an inorganic material (hollow glass microspheres). Were added to the stirred vessel, stirred at room temperature for 5 to 10 minutes to obtain the A component. Dried 200L stainless steel stirred vessel within the first 51 parts of sodium silicate, 47.2 parts of water, stirring until completely dissolved, then add the catalyst (dioctyltin oxide) 0.12 parts of a foam stabilizer (sodium salt of sulfonated ricinoleic acid) 1.68 parts, was stirred at room temperature for 4 to 8 minutes to obtain a uniformly mixed material B component. Weigh 100 parts of ethylene glycol ethyl ether acetate (component C). Weigh 100 parts of polyethylene (component D) diethanol -600. The A component, B component, C component, D component in accordance with the 200: 100: 2.5: 7 in the mass ratio, in accordance with the ratio of A and B components were mixed for 45 - ...

Embodiment 2

[0027] Stainless steel drying was stirred in the container at 200L, were weighed polyisocyanate (52 parts of tolylene diisocyanate, 24 parts of diphenylmethane diisocyanate) 76 parts of an inorganic material (hollow glass beads, 15 parts of light precipitated calcium carbonate 9 parts ) 24 copies. Were added to the stirred vessel, stirred at room temperature for 5 to 10 minutes to obtain the A component. Stainless steel drying stirred at 200L within the container, to join the sodium silicate 53 parts Water 43.5 parts, stirring until completely dissolved, then add the catalyst (dioctyltin oxide, 1 part of two diacetate dibutyltin 0.5 parts) 1.5 parts of a foam stabilizer ( water-soluble polyether siloxanes) 2 parts, was stirred at room temperature for 4 to 8 minutes to obtain uniform mixing materials only B component. Weigh 60 parts of polyacrylic acid, 40 parts of component C erythritol. 40 parts of polyethylene weighed diethanol -600,60 -1,000 parts of polyethylene (component D) ...

Embodiment 3

[0029] Stainless steel drying stirred at 200L in the vessel, were weighed polyisocyanate (50 parts of diphenylmethane diisocyanate, 35 parts of hexamethylene diisocyanate) 85 parts, 10 parts of an inorganic material (chopped glass fiber, hollow glass beads 5 parts) 15 parts. Were added to the stirred vessel, stirred at room temperature for 5 to 10 minutes to obtain the A component. Dried 200L stainless steel stirred vessel within the first 62 parts of sodium silicate, 35.5 parts of water, stirring until completely dissolved, then add the catalyst (b dibutyltin diacetate), 1 part of a foam stabilizer (a water soluble polyether siloxane ) 1.5 parts, was stirred at room temperature for 4 to 8 minutes to obtain a uniformly mixed material B component. Weigh 50 parts of ethylene glycol ethyl ether acetate, 50 parts of polyacrylic acid (component C). Weigh 25 parts of polyethylene diethanol -200,37.5 parts polyethylene diethanol -1000,37.5 parts of polyethylene (component D) diethanol -1...

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Abstract

The invention belongs to the field of building materials, and in particular relates to a foaming hybrid polymer plugging material and a preparation method thereof. The A component of the plugging material includes by weight: 75-90 parts of polyisocyanate, 10-25 parts of inorganic materials; the B component includes by weight: 40-65 parts of sodium silicate, 30-55 parts of water, 0.1-2.5 parts of catalyst, 1.5-2.5 parts of foam stabilizer; component C includes curing agent; component D includes toughening agent; the proportion of components A, B, C and D is 150 parts by weight ~250 parts: 100 parts: 0.5~5 parts: 5~10 parts. The plugging material overcomes the shortcomings of poor expansion and permeability of inorganic materials and the shortcomings of organic materials such as fast reaction speed, easy combustion, and large heat generation during the reaction process. It can be widely used in dam foundation seepage prevention and plugging, coal mine drainage Filling construction in underground space engineering such as gas drilling plugging.

Description

Technical field [0001] The present invention is in the field of building materials, lost circulation materials particularly relates to a foamed polymer hybrid type and preparation method. Background technique [0002] With the development of economy and society, people of many acts such as the relationship between mining production, water production, transportation and national defense construction and underground space ever closer, underground water conservancy and hydropower engineering plays in road transport, mining engineering a pivotal role. The stability of large-scale underground engineering problem of a large number of rock and soil excavation caused gradually become an important problem of human engineering activities faced. Internal disturbance will rock underground construction process of cracks, further mass destabilization, ranging from rock breaking off a small area, a large area of ​​collapse will cause heavy. In addition to coal appeared in the cracks will not on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/73C08G18/48C08G18/38C08K7/28C08K3/26C08K7/14C08G101/00
CPCC08G18/3895C08G18/4808C08G18/4833C08G18/724C08G18/73C08G18/7614C08G18/7671C08K3/26C08K7/14C08K7/28C08G2110/0083
Inventor 程家骥李少香张峰王勇刘猛曲文娟王栋
Owner QINGDAO UNIV OF SCI & TECH