CN1071180A - Water-swelling polymer-mineral composite and preparation method thereof - Google Patents
Water-swelling polymer-mineral composite and preparation method thereof Download PDFInfo
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- CN1071180A CN1071180A CN 91109199 CN91109199A CN1071180A CN 1071180 A CN1071180 A CN 1071180A CN 91109199 CN91109199 CN 91109199 CN 91109199 A CN91109199 A CN 91109199A CN 1071180 A CN1071180 A CN 1071180A
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Abstract
Water-swelling polymer-mineral composite contains wilkinite and molecular weight is equal to or greater than 10
6Linear cluster anion polymer, its part by weight of getting is described polymkeric substance: wilkinite is: from 0.05 to 0.10.Above-mentioned matrix material is to be equal to or greater than 10 by wilkinite and molecular weight
6Linear cluster anion polymer add that water is mixed and made into, its part by weight of getting is described polymkeric substance: wilkinite is: from 0.05 to 0.10, then the mixture of making is carried out drying, until making the solid target product.
Description
The present invention relates to synthetic, specifically, the invention of being applied for relates to water-swelling polymer one mineral composite and preparation method thereof.
The present invention can be applied in following each side: the coating that is used as reservoir, channel and dykes and dams in hydraulic engineering construction, in industry and hair are built, be used for soil improvement work, be used as the antiseepage shielding of underground structure, joint close and buildings flat-top, be used for fire extinguishing, drilling leakage blockage and interlayer are isolated.The present invention also can be used to improve the oil reservoir oil yield rate in oil recovery, in mining activity, be used for building tunnel with mine in the anti-shielding that blends sealing, and be used to isolate the chemical industry waste disposal site.
Known, mineral material-mud, the expansion characteristics that produces by the interaction with water in hydro project is used to silt up soil layer.
The swelling of clay is to cause owing to lattice that water molecules enters clay mineral forms open structure.
Above-mentioned mineral material is not used widely as yet because the clay granule that forms in soil is not firm.
The known material that has a kind of as Soil structure generation agent, this material is a 25(weight) part polyacrylamide and 75(weight) part clay or common brick powdered mixture.The method for making of above-mentioned materials is: with polymkeric substance and clay or with the common brick powder mixes after, add water and make " dense and burned " shape, be dried into solid mixt (SU, A, 139433) then.
Made material result is not good, because when being added to it in soil, will soon resolve under the effect of the moisture content of original component-in soil, polymkeric substance is dissolved and be easy to be pulled away from soil, and the swelling clay granule that forms in the soil is still not firm, can not guarantee the Soil structure that obtains expecting.Utilize above-mentioned materials, both made repeatedly and soaked, the poly-effect of knot of soil does not take place yet.
Also known adhesive, materials-for example pass through talcum powder, kaolin and the wilkinite powder of roasting.Water-soluble polymers is added in the adhesive agent, make acrylamide monomer polymerization (JP, A, 15151) under above-mentioned adhesive agent participates in.
According to the preparation method of this material, behind the above-mentioned water-soluble polymers monomer polymerization, under 70-80 ℃ of temperature, dry, just can obtain target product.
Made material is used for stablizing ground.
But as roasting in advance, then crystal water is overflowed from mineral, and begins to decompose, and loses suction and expansion characteristics.
Basic task of the present invention is to interact by the physical-chemical of guaranteeing original component, form water-swelling polymer one mineral composite and its preparation method is provided, its objective is: during with the water mutual effect, make polymkeric substance one mineral composite with expansion character, no matter under drying regime, or under dampness, all can keep stable the getting mutually of various components
This task is finished by following way: water-swelling polymer one mineral composite should comprise nature mineral materials and water-soluble polymers, and according to the present invention, wilkinite is as mineral materials, and molecular weight is equal to or greater than 10
6Linear cluster anion polymer as polymkeric substance.The part by weight of above-mentioned various components is: polymkeric substance: wilkinite is: from 0.05 to 0.10.
Because the present invention, polymkeric substance one mineral composite in repeatedly water logging, drying, congeal and when thawing, all have stable and adjustable expansion character.Matrix material does not dissolve in water and is not damaged, and it can increase volume to 100 times under dampness.
Above-mentioned water-swelling polymer one mineral composite can be produced with following method.This method comprises natural mineral materials and water-soluble polymers water mixing stirring, then the mixture of making is carried out drying until obtaining the solid target product.According to the present invention, wilkinite is as natural mineral materials, and molecular weight is equal to or greater than 10
6Linear cluster anion polymer as water-soluble polymers, both stir with this, linear cluster anion polymer and specify the part by weight of clay to remain between 0.05 to 0.10.
Further purpose of the present invention and advantage can be to water-swelling polymer one mineral composites, and its preparation method obtains in the detailed description of the embodiment of this method and the matrix material of making understanding.
Water-swelling polymer one mineral composite of being applied for contains the clay and the water-soluble polymers of two kinds of components, one granularity 10-50 dust.The two is combined into the floc sedimentation of adjustable structure contact.The part by weight of the composition of clay and water-soluble polymers and structure and these components all produces decisive influence to this performance of composites, when selecting clay, at first will consider its cationic exchange volume and water-absorbent.According to the present invention, utilize wilkinite as mineral materials.
Second component of this matrix material is that molecular weight is equal to or greater than 10
6Linear cluster anion polymer, for example acrylamide and acrylic copolymer or hydrolyzed polyacrylonitrile or carboxymethyl cellulose.
According to the present invention, this polymkeric substance is from 0.05 to 0.10 to the part by weight of above-mentioned clay.
The rational proportion of the composite material component of making is determined through a series of dedicated experiments.
When not observing above-mentioned polymkeric substance and bentonitic ratio, prepared matrix material expands in water, and volume increases to 20 times.
Above-mentioned polymkeric substance one mineral composite is water-fast solid matter, water logging repeatedly and dry, congeal and have stable and adjustable expansion character when thawing.
Above-mentioned performance is the polymkeric substance one mineral composite structures shape that forms because plastic construction bentonite clay particle component and polymer macromolecule physics-mechanics/negatively charged ion interacts, various component results of interaction make clay particle generation layering, and are aggregated the thing molecule and link.
When above-mentioned matrix material was sprinkled into soil layer, per unit volume can absorb the water of 30-50 times of volume composite material, and the humidity of soil layer can increase to 30% simultaneously.Above-mentioned performance can make matrix material be used for agrotechnique, improving the humidity of unbodied layer of sand, barren soil and other soil, and creates efficient greenhouse and water is planted system.
When building water project (dykes and dams, revetment, water channel and reservoir bottom of the reservior), this siccative of 5-10% is added to the water permeability that can reduce the buildings corresponding section in the building earth material greatly as compound.
In addition, above-mentioned polymkeric substance one mineral composite also can be used for:
In the mining, airtight and barrier waterproof of building in tunnel and mine;
In the fireproofing technique, make effective noninflammable material component and shielding (storage tank, colliery, grain fire-proof shield);
In the drilling technology, make the drilling fluid and the patching materials that prevent drilling fluid leakage and pay sand fragmentation;
In the soil improvement, improve the humidity and the output of high infiltration soil layer and poor ridge soil layer;
In the conservation of natural environment, build the reliable and nonvolatil barrier and the liquid waste solidified barrier that bury chemistry, radioactivity and other harmful waste.
All carrying out laboratory and part test in place aspect all these.Test shows, the technology of being developed comprises that polymkeric substance one mineral composite that employing is applied for has effect preferably.
Polymkeric substance one mineral composite of being applied for can be produced with following method.Molecular weight is equal to or greater than 10
6Linear cluster anion polymer and wilkinite be prepared into mixture with water, make the part by weight of polymkeric substance and clay be simultaneously:, then the mixture of making to be carried out drying until obtaining the solid target product by 0.05 to 0.10.Drying can be carried out under the free air temperature condition, reaches the dry air state of product, after this pulverizes monodispersity or polymolecularity powder until polymkeric substance one mineral composite that makes set granulometric composition again.
At this moment dry can carrying out in temperature reaches 100 ℃ special-purpose stove can obtain powdery product, or need the solid product further pulverized.
The invention of being applied for can be produced has water-swelling polymer one mineral composite that can regulate turgidity.The latter's turgidity depends on employed water-soluble polymeric properties and the concrete component ratio of selecting.
In order to understand the present invention better, the following specific embodiment of existing act.
Embodiment 1
With machine mixer 50 gram wilkinites and 50 mol are measured one's own ability 1.5 * 10
6Acrylamide and acrylic copolymer add 945.0 the gram water stir, under 20 ℃ of temperature, the uniform mixture that makes is carried out drying then, dried mixture is solid-state crumbly mass, can make powder monodispersity or polymolecularity through grinding.
Add water-powder expansion in prepared powder, absorption of water is 1500 weight %.Has loose granular structure (shape of a maintenance oneself, debond mutually).
When repeating the Powdered component of dry expansion, particle is combined into uniform material, and when water logging once more, turgidity is constant, and repeatedly check (reaching 10 times) shows that swelling properties remains unchanged fully.
Embodiment 2
Is 1.5 * 10 with machine mixer with 100 gram wilkinites and 5.0 gram molecular weights
6Carboxymethyl cellulose add 895 the gram water stir, the gained uniform mixture carries out drying in drying oven under 90 ℃ of temperature.
Solid-state and the crumbly mass of exsiccant is ground Hou Jiashui-powder begin expand (absorption of water power 700 weight %).
When repeating the powder of dry expansion, particle is combined into the material of homogeneous, and when using water layer again, turgidity is constant.Repeatedly check (reaching 10 times) shows that swelling properties remains unchanged fully.
Embodiment 3
With machine mixer 100 gram wilkinites and 5 mol are measured one's own ability 4.5 * 10
6Acrylamide and acrylic copolymer add 895 gram water and stir then the uniform mixture that will make under 95 ℃ of temperature, in drying oven, dry, the solid product Hou Jiashui-powder of claying into power begins expand (absorption of water is 2000-3000 weight %).
When repeating the powder of dry expansion, particle is combined into the material of homogeneous, and when using water logging again, turgidity remains unchanged.
Repeatedly check (reaching 10 times) shows that swelling properties remains unchanged fully.
Embodiment 4
Is 3.0 * 10 with machine mixer with 75 gram wilkinites and 5.0 gram molecular weights
6Acrylamide and acrylic copolymer add 920.00 the gram water stir, then the uniform mixture that makes is carried out drying under free air temperature (20-25 ℃), prepared solid-state crumbly mass is milled to monodispersity or polymolecularity powder.
In the measuring cup of laboratory, place powdery product, add the water of 80 times of suitable products then, when polymkeric substance one mineral composite complete saturated after (48 hours), measure the volume of remaining water, the absorption of water of powdery product is 2000 weight %.
When repeating the dry expansion powder, particle is combined into the material of homogeneous, and further during water logging, the turgidity of product remains unchanged.
Repeatedly check (reaching 10 times) shows that the swelling properties of products obtained therefrom remains unchanged fully.
Embodiment 5
Is 1.2 10 with machine mixer with 100 gram wilkinites and 5 gram molecular weights
6Hydrolyzed polyacrylonitrile add 895 the gram water stir, then the uniform mixture (20-25 ℃) under free air temperature that makes is carried out drying, the solid-state crumbly mass that makes is milled to monodispersity or polymolecularity powder.
Place powdery product in the measuring cup of laboratory, add the water of 80 times of suitable products then, characterizing the expansile absorption of water of this product is 1000 weight %.
Repeatedly dry and water logging (reaching 10 times) shows that the swelling properties of this product remains unchanged fully.
Claims (2)
1, water-swelling polymer one mineral composite, it comprises nature mineral materials and water-soluble polymers, it is characterized in that it contains wilkinite as mineral materials, and as polymkeric substance, then contains molecular weight and be equal to or greater than 10
6Linear cluster anion polymer, the part by weight of its above-mentioned component is a polymkeric substance: wilkinite is from 0.05 to 0.10.
2, the preparation method of water-swelling polymer one mineral composite of claim 1, it comprises water mixing nature mineral materials and water-soluble polymers, then the mixture that makes is carried out drying, until making solid product, it is characterized in that and to be equal to or greater than 10 as the wilkinite of natural mineral substance with as the molecular weight of polymkeric substance
6Linear cluster anion polymer mixing stirring, its part by weight of getting must guarantee: described polymkeric substance: described wilkinite is from 0.05 to 0.10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91109199 CN1071180A (en) | 1991-09-26 | 1991-09-26 | Water-swelling polymer-mineral composite and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91109199 CN1071180A (en) | 1991-09-26 | 1991-09-26 | Water-swelling polymer-mineral composite and preparation method thereof |
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| CN1071180A true CN1071180A (en) | 1993-04-21 |
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| CN 91109199 Pending CN1071180A (en) | 1991-09-26 | 1991-09-26 | Water-swelling polymer-mineral composite and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603220A (en) * | 2012-04-01 | 2012-07-25 | 昌吉市先导工程材料有限责任公司 | Preparation of polymer composite gelling agent for grouting and application method thereof |
| CN103964976A (en) * | 2014-05-26 | 2014-08-06 | 云南云叶化肥股份有限公司 | Loss-control fertilizer additive and preparation method thereof |
| CN105174276A (en) * | 2015-09-09 | 2015-12-23 | 东南大学 | High-efficiency impermeable polymer bentonite nano composite material and preparation method thereof |
| CN110103361A (en) * | 2019-05-16 | 2019-08-09 | 西南交通大学 | A kind of waste and old courier packages' packaging graded crushing recyclable device |
| CN110952502A (en) * | 2019-12-02 | 2020-04-03 | 中建长远建设有限公司 | Dam seepage-proofing treatment method |
-
1991
- 1991-09-26 CN CN 91109199 patent/CN1071180A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603220A (en) * | 2012-04-01 | 2012-07-25 | 昌吉市先导工程材料有限责任公司 | Preparation of polymer composite gelling agent for grouting and application method thereof |
| CN103964976A (en) * | 2014-05-26 | 2014-08-06 | 云南云叶化肥股份有限公司 | Loss-control fertilizer additive and preparation method thereof |
| CN105174276A (en) * | 2015-09-09 | 2015-12-23 | 东南大学 | High-efficiency impermeable polymer bentonite nano composite material and preparation method thereof |
| CN110103361A (en) * | 2019-05-16 | 2019-08-09 | 西南交通大学 | A kind of waste and old courier packages' packaging graded crushing recyclable device |
| CN110952502A (en) * | 2019-12-02 | 2020-04-03 | 中建长远建设有限公司 | Dam seepage-proofing treatment method |
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