CN113105150A - Suspension stabilizer, preparation method, use method and use device thereof - Google Patents

Suspension stabilizer, preparation method, use method and use device thereof Download PDF

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Publication number
CN113105150A
CN113105150A CN202110200710.9A CN202110200710A CN113105150A CN 113105150 A CN113105150 A CN 113105150A CN 202110200710 A CN202110200710 A CN 202110200710A CN 113105150 A CN113105150 A CN 113105150A
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suspension
suspension stabilizer
parts
liquid storage
cellulose ether
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邓波
邝文辉
张大康
周光星
张玉露
潘一帆
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Guangdong Zhidao Advanced Civil Engineering Materials Technology Research Co ltd
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Guangdong Zhidao Advanced Civil Engineering Materials Technology Research Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1856—Stationary reactors having moving elements inside placed in parallel
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62625—Wet mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives thereof

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Abstract

The invention discloses a suspension stabilizer, a preparation method, a using method and a using device thereof, wherein the suspension stabilizer comprises the following components in parts by weight: 5-20 parts of cellulose ether, 1-1.5 parts of xanthan gum and 1000-1500 parts of solvent; wherein the molecular weight of the cellulose ether is 80000-200000. The suspension stabilizer has the advantages of simple formula, low cost, good stabilizing effect and wide application range.

Description

Suspension stabilizer, preparation method, use method and use device thereof
Technical Field
The invention relates to the technical field of turbid liquid, in particular to a turbid liquid stabilizer, and a preparation method, a use method and a use device thereof.
Background
The mixture formed by suspending insoluble solid particles larger than 100 nanometers in liquid is called suspension. The suspension is a dispersion system, and the diameter of the dispersoid particle is more than 100nm, and the dispersoid particle is mostly an assembly of many molecules, such as slurry. The suspension was opaque, inhomogeneous, unstable, and impermeable to filter paper, and was stratified after standing (i.e., the dispersoid particles gradually settled down under gravity).
The existing stabilizer for cement slurry is composed of xanthan gum, silicon dioxide, welan gum, polyvinyl alcohol, high molecular copolymer and other materials, has complex components and high cost, but cannot be used for other suspension liquid, such as ceramic slurry.
Disclosure of Invention
The invention aims to solve the technical problem of providing a suspension stabilizer which is simple in formula, low in cost, good in stabilizing effect and wide in application range.
The technical problem to be solved by the invention is to provide a method for preparing a suspension stabilizer, which has the advantages of simple process, low cost, good stabilizing effect of the prepared stabilizer and wide application range.
The invention also aims to solve the technical problem of providing a method for using the suspension stabilizer, which is simple to use and can be applied to cement slurry or ceramic slurry.
The invention also aims to provide a device for using the suspension stabilizer, which has a simple structure and effectively improves the stability of the suspension.
In order to solve the technical problem, the invention provides a suspension stabilizer which comprises the following components in parts by weight: 5-20 parts of cellulose ether, 1-1.5 parts of xanthan gum and 1000-1500 parts of solvent; wherein the molecular weight of the cellulose ether is 80000-200000.
As an improvement of the scheme, the cellulose ether mainly comprises one or more of MC methyl cellulose, ethyl cellulose and hydroxypropyl cellulose.
As a modification of the above, the cellulose ether consists of MC methylcellulose and ethylcellulose, wherein the amount of MC methylcellulose used is: the dosage of the ethyl cellulose is (10-15): 1.
as a modification of the above, the cellulose ether consists of MC methylcellulose and hydroxypropyl cellulose, wherein the amount of MC methylcellulose used is: the dosage of the hydroxypropyl cellulose is (20-25): 1.
as an improvement of the scheme, the molecular weight of the cellulose ether is 100000-160000.
As an improvement of the scheme, the amount of the xanthan gum is 1.2-1.4 parts.
Correspondingly, the invention also provides a preparation method of the suspension stabilizer, which comprises the following steps:
s1, adding 1000-1500 parts of solvent into a container, and stirring the solvent at a stirring speed of 80-100 revolutions per minute;
s2, adding 5-20 parts of cellulose ether and 1-1.5 parts of xanthan gum into a stirring solvent, and keeping stirring for 10-15 min; wherein the molecular weight of the cellulose ether is 80000-200000.
Correspondingly, the invention also provides a using method of the suspension stabilizer, wherein the suspension stabilizer is added into the suspension, the addition amount of the suspension stabilizer is 5 wt% -10 wt%, and the suspension is cement slurry or ceramic slurry.
Correspondingly, the invention also provides a using device of the suspension stabilizer, which is used for preparing the suspension stabilizer and adding the suspension stabilizer into the suspension in real time and comprises a first liquid storage tank, a second liquid storage tank and a filter, wherein the first liquid storage tank is used for storing the suspension, the second liquid storage tank is used for storing the suspension stabilizer, the second liquid storage tank is provided with a feed opening, a water inlet pipe and a second stirrer, the water inlet pipe inputs the solvent into the second liquid storage tank, other components of the suspension stabilizer are added into the second liquid storage tank through the feed opening, and the second stirrer is used for stirring the components and the solvent;
be equipped with between first liquid storage pot and the second liquid storage pot the filter, through first pipe connection between first liquid storage pot and the filter, through second pipe connection between filter and the second liquid storage pot, during turbid liquid stabilizer after the filtration added the turbid liquid through the second pipeline, first liquid storage pot is equipped with first agitator for stirring turbid liquid and stabilizer.
As an improvement of the scheme, a filter screen is arranged in the filter, and the aperture of the filter screen is 300-650 meshes.
The implementation of the invention has the following beneficial effects:
the suspension stabilizer provided by the invention comprises cellulose ether, xanthan gum and solvent, and is simple in component, low in cost and good in stability, wherein after the cellulose ether is dissolved in water, solid particles are effectively and uniformly distributed in a suspension system due to the surface activity, the solid particles in the suspension are wrapped, and a layer of lubricating film is formed on the outer surfaces of the solid particles, and the lubricating film has good water-retaining property, can increase the viscosity of the suspension and effectively prevents the suspension from layering; the xanthan gum sol molecule can form a super-bonding banded spiral copolymer to form a fragile gel-like reticular structure, can support the forms of solid particles, liquid drops and bubbles, and has strong emulsification stability and high suspension capacity.
The preparation method of the suspension stabilizer is simple, easy to prepare, low in cost and suitable for large-scale production.
The use method of the suspension stabilizer provided by the invention is simple to use and can be applied to cement paste or ceramic slurry.
According to the using device, the filter is arranged between the first liquid storage tank and the second liquid storage tank, so that impurities in the stabilizer can be effectively removed, and in addition, the stabilizer and the suspension can be fully reacted through the stirring effect of the first stirrer, so that the stability of the suspension is improved.
Drawings
FIG. 1 is a flow chart showing the preparation of a suspension stabilizer according to the present invention;
FIG. 2 is a schematic view of a device for using a suspension stabilizer according to the present invention;
fig. 3 is a schematic view of the connection of the usage device and usage unit of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a suspension stabilizer which comprises the following components in parts by weight: 5-20 parts of cellulose ether, 1-1.5 parts of xanthan gum and 1000-1500 parts of solvent; wherein the molecular weight of the cellulose ether is 80000-200000.
The cellulose ether is used in an amount of 5-20 parts, after the cellulose ether is dissolved in water, solid particles are effectively and uniformly distributed in a suspension system due to the surface activity, specifically, the cellulose ether is used as a protective colloid to wrap the solid particles in the suspension, and a lubricating film is formed on the outer surface of the solid particles, and the lubricating film has good water-retaining property, can increase the viscosity of the suspension, and effectively prevents the suspension from layering. The cellulose ether of the present invention is preferably used in an amount of 8 to 18 parts, illustratively 8 parts, 10 parts, 13 parts, 15 parts, 18 parts, but is not limited thereto.
The molecular weight of the cellulose ether plays an important role in the viscosity of the suspension, and the molecular weight of the cellulose ether is 80000-200000; if the molecular weight of the cellulose ether is less than 80000, the viscosity of the cellulose ether is low, the solid particles in the suspension cannot be effectively wrapped, and a lubricating film with good water retention cannot be formed; if the molecular weight of the cellulose ether is more than 200000, the viscosity of the cellulose ether increases and the solubility decreases, thereby increasing the viscosity of the suspension. Preferably, the cellulose ether has a molecular weight of 100000 to 160000, illustratively 100000, 120000, 150000, 160000, but is not limited thereto.
Specifically, the cellulose ether of the invention mainly comprises one or more of MC methyl cellulose, ethyl cellulose and hydroxypropyl cellulose.
In order to obtain cellulose ether with higher viscosity, so as to better wrap solid particles in suspension and form a lubricating film with better water retention property, the cellulose ether consists of MC methyl cellulose and ethyl cellulose, wherein the dosage of MC methyl cellulose is as follows: the dosage of the ethyl cellulose is (10-15): 1; alternatively, the cellulose ether of the present invention is composed of MC methylcellulose and hydroxypropyl cellulose, wherein the amount of MC methylcellulose used is: the dosage of the ethyl cellulose is (20-25): 1
The xanthan gum is used in an amount of 1-1.5 parts, and xanthan gum sol molecules can form a super-bonded banded spiral copolymer to form a fragile gel-like net structure, can support the shapes of solid particles, liquid drops and bubbles, and has a strong emulsification stabilizing effect and high suspension capacity. Wherein if the using amount of the xanthan gum is less than 1 part, the effect of increasing the viscosity of the suspension is not obvious; if the amount of xanthan gum is more than 1.5 parts, the amount of xanthan gum becomes too much, and the xanthan gum becomes a jelly-like micelle which is not easily dissolved and dispersed in the suspension and does not work. Specifically, the xanthan gum is used in an amount of 1 part, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts or 1.5 parts. Preferably, the amount of the xanthan gum is 1.2-1.4 parts.
The solvent is used for dissolving cellulose ether and xanthan gum in an amount of 1000-1500 parts, and preferably, the solvent is water. Specifically, the solvent may be tap water, deionized water, or the like.
Correspondingly, referring to fig. 1, the invention also provides a preparation method of the suspension stabilizer, which comprises the following steps:
s1, adding 1000-1500 parts of solvent into a container, and stirring the solvent at a stirring speed of 80-100 revolutions per minute;
s2, adding 5-20 parts of cellulose ether and 1-1.5 parts of xanthan gum into the solvent in stirring, and keeping stirring for 10-15 min. The stirring time is set to fully dissolve, the xanthan gum may not be dissolved enough if the stirring time is insufficient, and the production efficiency is affected if the stirring time is too long.
It should be noted that the xanthan gum has extremely strong hydrophilicity, and when the xanthan gum is added into water and stirred insufficiently, the outer layer of the xanthan gum absorbs water and expands into a micelle, which can prevent water from entering the inner layer, thereby affecting the exertion of the effect.
The preparation method of the suspension stabilizer is simple, easy to prepare, low in cost and suitable for large-scale production.
Correspondingly, the invention also provides a using method of the suspension stabilizer, wherein the suspension stabilizer is added into the suspension, the addition amount of the suspension stabilizer is 5 wt% -10 wt%, and the suspension is cement slurry or ceramic slurry.
Referring to fig. 2, the invention further provides a device for using the suspension stabilizer, which comprises a first liquid storage tank 1, a second liquid storage tank 2 and a filter 3, wherein the first liquid storage tank 1 is used for storing the suspension, the second liquid storage tank 2 is used for storing the suspension stabilizer, the filter 3 is arranged between the first liquid storage tank 1 and the second liquid storage tank 2, and the filter 3 is used for filtering colloidal substances in the suspension stabilizer. Wherein, be equipped with the filter screen in the filter 3, the aperture of filter screen is 300 ~ 650 meshes. If the aperture of the filter screen is too small, the flow rate of the liquid is affected; if the pore size of the filter screen is too large, the colloidal substance cannot be effectively filtered.
The colloidal substance has no influence on the stability of the suspension, but influences the adsorption of the water reducing agent in the concrete.
First liquid storage pot 1 and filter 3 are connected through first pipeline between, and filter 3 and second liquid storage pot 2 are connected through the second pipeline between, and the turbid liquid stabilizer after the filtration passes through the second pipeline and adds in the turbid liquid, first liquid storage pot 1 is equipped with first agitator 11 for stirring turbid liquid and turbid liquid stabilizer.
Specifically, the first stirrer 11 comprises a motor 111, a stirring shaft 112 and a stirring blade 113, wherein the stirring shaft 112 is connected between the motor 111 and the stirring blade 113, and the stirring blade 113 extends into the suspension.
In order to reduce the pollution to the suspension, the stirring blade 113 is a stainless steel plastic-lined stirring paddle.
The first liquid storage tank 1 is internally provided with a first liquid level meter 12 for controlling the addition amount of a suspension stabilizer. Preferably, a delivery pump 4 is provided in the second conduit.
In order to improve the stabilizing effect of the suspension stabilizer, the suspension stabilizer of the present application is preferably used as it is, preferably, the second liquid storage tank 2 is provided with a feed port 21, a water inlet pipe 22 and a second stirrer 23, the water inlet pipe inputs the solvent into the second liquid storage tank 2, the other components of the suspension stabilizer are added into the second liquid storage tank 2 through the feed port 21, and the second stirrer 23 is used for each component and the solvent to form the suspension stabilizer. Preferably, the second stirrer 23 has the same structure as the first stirrer 11.
Preferably, be equipped with flowmeter 24 on inlet tube 22, be equipped with second level gauge 25 in the second liquid storage pot 2, use through the cooperation of flowmeter 24 and second level gauge 25, the addition of each raw materials of turbid liquid stabilizer can accurate control to guarantee that the concentration of turbid liquid stabilizer is in predetermineeing the within range.
Preferably, the first liquid storage tank 1 and the second liquid storage tank 2 are both made of PE with the thickness of 30-60 mm into shells, the PE is odorless and chemical-free, has good chemical stability, small water absorption and excellent electrical insulation, and does not dissolve in the suspension stabilizer and the suspension. Preferably, the first liquid storage tank 1 and the second liquid storage tank 2 are both made of PE with the thickness of 40mm into shells.
Referring to fig. 3, in order to facilitate the stable suspension to be used quickly, the first liquid storage tank 1 is directly connected to the using unit 5, wherein the first liquid storage tank 1 is connected to the using unit 5 through a pipe, and a metering scale 6 is arranged on the pipe and used for controlling the amount of the suspension.
Wherein, the turbid liquid of this application is grout or ceramic mud, and the use unit is concrete mixer.
The following is the workflow of the device used in the present application:
the tap water is introduced into the second liquid storage tank 2, and the liquid level height is determined through the flowmeter and the second liquid level meter; starting a second stirrer, and controlling the rotating speed to be 80-100 revolutions per minute; adding the raw materials of the stabilizer into the second liquid storage tank 2 from a feeding port, and stirring for 10-15 min; storing the ceramic polishing slurry in a first liquid storage tank 1, and adjusting and determining the height of the liquid level through a first liquid level meter; starting the first stirrer 11, and controlling the rotating speed to be 80-100 revolutions per minute; and starting the filter 3, adding the filtered stable liquid into the second liquid storage tank 2, adjusting and determining the liquid level height through the first liquid level meter, and stirring for 15-20 min to obtain the stable ceramic polishing slurry.
According to the using device, the filter is arranged between the first liquid storage tank and the second liquid storage tank, so that impurities in the stabilizer can be effectively removed, and in addition, the stabilizer and the suspension can be fully reacted through the stirring effect of the first stirrer, so that the stability of the suspension is improved.
The using device disclosed by the invention is simple in structure, and the addition amount of the stabilizer can be accurately controlled through the mutual matching of the first liquid level meter and the second liquid level meter, so that the stabilizing effect is ensured.
The using device can realize the on-site preparation of the stabilizer, effectively ensure the effectiveness of the stabilizer and further ensure the stability of the suspension.
The invention will be further illustrated by the following specific examples
Example 1
The formula is as follows:
5 parts of cellulose ether, 1 part of high molecular polymer, 1 part of xanthan gum and 1000 parts of water, wherein the cellulose ether consists of MC methyl cellulose and has the molecular weight of 80000.
The preparation method comprises the following steps:
s1, adding water into the container, and stirring the water at the stirring speed of 90 revolutions per minute;
and S2, adding the cellulose ether and the xanthan gum into the stirred water, and keeping stirring for 12min to obtain the suspension stabilizer.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the suspension stabilizer is added in an amount of 5 wt%.
Example 2
The formula is as follows:
8 parts of cellulose ether, 1.1 parts of xanthan gum and 1100 parts of water, wherein the cellulose ether consists of MC methyl cellulose and has the molecular weight of 120000.
The preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer was 7 wt%.
Example 3
The formula is as follows:
10 parts of cellulose ether, 1.5 parts of xanthan gum and 1500 parts of water, wherein the cellulose ether consists of MC methyl cellulose and ethyl cellulose, the molecular weight is 160000, and the using amount of the MC methyl cellulose is as follows: the amount of ethyl cellulose was 12: 1.
the preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 8 wt%.
Example 4
The formula is as follows:
13 parts of cellulose ether, 1.1 parts of xanthan gum and 1300 parts of water, wherein the cellulose ether consists of MC methyl cellulose and hydroxypropyl cellulose, the molecular weight is 150000, and the using amount of the MC methyl cellulose is as follows: the dosage of the hydroxypropyl cellulose is 22: 1.
the preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 10 wt%.
Example 5
The formula is as follows:
15 parts of cellulose ether, 1.2 parts of xanthan gum and 1300 parts of water, wherein the cellulose ether consists of MC methyl cellulose and has a molecular weight of 100000.
The preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 8 wt%.
Example 6
The formula is as follows:
18 parts of cellulose ether, 1.3 parts of xanthan gum and 1400 parts of water, wherein the cellulose ether consists of MC methyl cellulose and has a molecular weight of 100000.
The preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 10 wt%.
Example 7
The formula is as follows:
20 parts of cellulose ether, 1.5 parts of xanthan gum and 1500 parts of water, wherein the cellulose ether consists of MC methyl cellulose and ethyl cellulose, the molecular weight is 200000, and the using amount of the MC methyl cellulose is as follows: the amount of ethylcellulose used is 15: 1.
the preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 6 wt%.
Comparative example 1
The formula is as follows:
10 parts of cellulose ether, 1.5 parts of xanthan gum and 1200 parts of water, wherein the cellulose ether consists of MC methyl cellulose and has a molecular weight of 180000.
The preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 1 wt%.
Comparative example 2
The formula is as follows:
10 parts of cellulose ether, 1.5 parts of xanthan gum and 1200 parts of water, wherein the cellulose ether consists of MC methyl cellulose and has the molecular weight of 10000.
The preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 8 wt%.
Comparative example 3
The formula is as follows:
the high-performance cellulose ether comprises, by weight, 1 part of cellulose ether, 1.5 parts of xanthan gum and 1200 parts of water, wherein the cellulose ether consists of MC methyl cellulose and has a molecular weight of 180000.
The preparation method is the same as that of example 1.
Application;
adding a suspension stabilizer into the ceramic slurry, uniformly stirring, and standing for 2 hours; wherein the addition amount of the suspension stabilizer is 8 wt%.
Blank test
The ceramic slurry is stirred evenly and then stands for 2 hours
The volume ratio of the clear water layer after the ceramic slurry of the examples 1 to 7, the comparative examples 1 to 3 and the blank test is stood for 2 hours is calculated, and the results are as follows:
Figure BDA0002948692300000091
Figure BDA0002948692300000101
according to the structure, after the suspension stabilizer disclosed by the invention has a stabilizing effect, the volume ratio of the clear water layer after the ceramic slurry is kept stand for 2 hours is obviously smaller than that of the comparative examples 1-3 and the blank test. Among them, the addition amount of the suspension stabilizer in comparative example 1 was too small, the molecular weight of the cellulose ether in comparative example 2 was too low, and the content of the cellulose ether in comparative example 3 was too small.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. A suspension stabilizer is characterized by comprising the following components in parts by weight: 5-20 parts of cellulose ether, 1-1.5 parts of xanthan gum and 1000-1500 parts of solvent; wherein the molecular weight of the cellulose ether is 80000-200000.
2. A suspension stabilizer according to claim 1, characterized in that the cellulose ether consists essentially of one or more of MC methyl cellulose, ethyl cellulose, hydroxypropyl cellulose.
3. A suspension stabilizer according to claim 2, characterized in that the cellulose ether consists of MC methyl cellulose and ethyl cellulose, wherein the amount of MC methyl cellulose is: the dosage of the ethyl cellulose is (10-15): 1.
4. a suspension stabilizer according to claim 2, characterized in that the cellulose ether consists of MC methylcellulose and hydroxypropyl cellulose, wherein the amount of MC methylcellulose used is: the dosage of the hydroxypropyl cellulose is (20-25): 1.
5. a suspension stabilizer according to any one of claims 1 to 4, wherein the cellulose ether has a molecular weight of 100000 to 160000.
6. The suspension stabilizer according to claim 1, wherein the xanthan gum is used in an amount of 1.2 to 1.4 parts.
7. A method for preparing a suspension stabilizer is characterized by comprising the following steps:
s1, adding 1000-1500 parts of solvent into a container, and stirring the solvent at a stirring speed of 80-100 revolutions per minute;
s2, adding 5-20 parts of cellulose ether and 1-1.5 parts of xanthan gum into a stirring solvent, and keeping stirring for 10-15 min; wherein the molecular weight of the cellulose ether is 80000-200000.
8. A method for using a suspension stabilizer, which is characterized in that the suspension stabilizer of any one of claims 1 to 6 is added into a suspension, wherein the addition amount of the suspension stabilizer is 5 wt% -10 wt%, and the suspension is cement slurry or ceramic slurry.
9. An apparatus for using a suspension stabilizer, which is used for preparing the suspension stabilizer according to any one of claims 1 to 6 and adding the suspension stabilizer to a suspension in real time, and which comprises a first liquid storage tank, a second liquid storage tank and a filter, wherein the first liquid storage tank is used for storing the suspension, the second liquid storage tank is used for storing the suspension stabilizer, the second liquid storage tank is provided with a feed opening, a water inlet pipe and a second stirrer, the water inlet pipe inputs a solvent into the second liquid storage tank, other components of the suspension stabilizer are added into the second liquid storage tank through the feed opening, and the second stirrer is used for stirring the components and the solvent;
be equipped with between first liquid storage pot and the second liquid storage pot the filter, through first pipe connection between first liquid storage pot and the filter, through second pipe connection between filter and the second liquid storage pot, during turbid liquid stabilizer after the filtration added the turbid liquid through the second pipeline, first liquid storage pot is equipped with first agitator for stirring turbid liquid and stabilizer.
10. The apparatus for using a suspension stabilizer according to claim 9, wherein a strainer is provided in the filter, and the strainer has a pore size of 300 to 650 mesh.
CN202110200710.9A 2021-02-23 2021-02-23 Suspension stabilizer, preparation method, use method and use device thereof Pending CN113105150A (en)

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