CN110498927A - A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof - Google Patents
A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof Download PDFInfo
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- CN110498927A CN110498927A CN201810471407.0A CN201810471407A CN110498927A CN 110498927 A CN110498927 A CN 110498927A CN 201810471407 A CN201810471407 A CN 201810471407A CN 110498927 A CN110498927 A CN 110498927A
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- CN
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- Prior art keywords
- tertiary amine
- grinding aid
- polyhydroxy tertiary
- polyether polyhydroxy
- cement grinding
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/283—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Polyethers (AREA)
Abstract
The invention discloses a kind of polyether polyhydroxy tertiary amine cement grinding aids, the branch of main chain and low hydroxyl value polyester polyol including aminated compounds, the main chain and the branch form the polyether polyhydroxy tertiary amine cement grinding aid molecular structure of " pectination " or " dendroid ", active function groups are the synthetic of amido, contain ehter bond in the ether polyhydroxy tertiary amine cement grinding aid molecular structure.The invention also discloses a kind of preparation methods of polyether polyhydroxy tertiary amine cement grinding aid.Polyether polyhydroxy tertiary amine cement grinding aid of the invention is provided with stronger absorption dispersibility and electrostatic screening effect, more powerful to the grinding-aid effect of cement, is better than the substances such as alcohol, hydramine, lipid to the grinding-aid effect of cement.
Description
Technical field
The present invention relates to polyether polyhydroxy tertiary amine cement grinding aid technical fields, specifically, being related to a kind of polyethers polyhydroxy
Base tertiary amine cement grinding aid and preparation method thereof.
Background technique
In order to improve cement grinding, improve production efficiency and what is mixed plays grind -aiding effect and not in cement pulverizing course
The technique additive of damage cement performance is known as grinding aid, and the purpose for adding grinding aid is grindability in order to improve material, subtracts
Adhesive aggregation conglomeration effect between light particle eliminates subparticle paste ball and pastes liner plate phenomenon, improves the mobility of material in grinding machine, from
And realize the target of ball grinder saving energy high yield.
Existing cement, which helps, touches agent by state when using point, can be divided into: solid, liquids and gases grinding aid.Solid
Grinding aid has: stearates, colloidal silicon dioxide, aquadag, carbon black, flyash, gypsum etc.；Liquid grinding aid has: having
Machine silicon, triethanolamine, ethylene glycol；Propylene glycol, polyacrylate, polycarboxylate etc.；Gas grinding aid has: the polar object of vaporous
Matter (acetone, nitromethane, methanol, vapor) and apolar substance (carbon tetrachloride) etc..It can be with by chemical structure grinding aid
It is divided into three classes: polymer-inorganic salt, polymerization organic salt and complex chemical compound.It is very universal in the application of external grinding aid, 95%
Cement mill all uses grinding aid.Some cement plants at home also used grinding aid in the past, such as: triethanolamine, ethylene glycol,
The one kind such as propylene glycol, petroleum acids soda soap chemical plant leftover bits and pieces, but since source shortage, price increase, it deactivates gradually.
Summary of the invention
Gather the first technical problem to be solved by the present invention is: the grinding-aid effect for providing a kind of pair of cement is more powerful
Ether polyhydroxy tertiary amine cement grinding aid.
Second technical problem to be solved by this invention is: providing a kind of above-mentioned polyether polyhydroxy tertiary amine cement grinding aid
Preparation method.
In order to solve the first technical problem mentioned above, the technical scheme is that
A kind of polyether polyhydroxy tertiary amine cement grinding aid, main chain and low hydroxyl value polyester polyol including aminated compounds
Branch, the main chain and the branch form the polyether polyhydroxy tertiary amine cement agent molecule knot of " pectination " or " dendroid "
Structure, active function groups are the synthetic of amido, contain ehter bond in the ether polyhydroxy tertiary amine cement grinding aid molecular structure.
Preferably, the aminated compounds is polyether polyhydroxy tertiary amine.
Preferably, the aminated compounds further includes triisopropanolamine.
Preferably, the low hydroxyl value polyester polyol is benzoic anhydride polyester polyol.
Preferably, the weight ratio of the polyether polyhydroxy tertiary amine, the triisopropanolamine, the benzoic anhydride polyester polyol
Are as follows:
30~80 parts of polyether polyhydroxy tertiary amine；
0~20 part of triisopropanolamine；
10~20 parts of benzoic anhydride polyester polyol.
To solve above-mentioned second technical problem, the technical scheme is that
A kind of above-mentioned polyether polyhydroxy tertiary amine cement grinding aid preparation method, it is characterised in that: the following steps are included:
A, aminated compounds and low hydroxyl value polyester polyol addition water are mixed, is stirred evenly；
B, chain extender, crosslinking agent and catalyst is added, stirs evenly；
C, 80~120 DEG C are heated to and is maintained, is chemically reacted 1~3 hour, polyether polyhydroxy tertiary amine cement grinding aid is generated
Liquid.
Preferably, the aminated compounds be polyether polyhydroxy tertiary amine or be polyether polyhydroxy tertiary amine andTriisopropanolamine
Mixture.
Preferably, the low hydroxyl value polyester polyol is benzoic anhydride polyester polyol.
Preferably, the chain extender is ethylenediamine or N- dihydroxy aniline, and the crosslinking agent is N- methylene bisacrylamide acyl
Amine or divinylbenzene.
Preferably, the catalyst is iron oxide Fe2O3.
By adopting the above-described technical solution, the beneficial effects of the present invention are:
Polyether polyhydroxy tertiary amine cement grinding aid of the invention is a kind of novel cement grinding aid, is in chain extender, hands over
Under the action of joining agent, catalyst, using triisopropanolamine as main chain, using low hydroxyl value polyester polyol as branch, by artificially dividing
Son design forms the macromolecule new material with " pectination " or " dendroid " molecular structure, contains ehter bond in molecular structure,
Active function groups are the synthetic of amido.It has the advantage that
1, there is stronger absorption dispersibility and electrostatic screening effect, therefore more powerful to the grinding-aid effect of cement,
The substances such as alcohol, hydramine, lipid are better than to the grinding-aid effect of cement.
2, haveTriisopropanolamineTo strength of cement value added later strength high-performance.On the basis of identical addition content,
Intensity value added reaches 4-8Mpa within 28 days, is higher than triisopropanolamine.
3, because the substances such as polyether polyhydroxy tertiary amine and triethanolamine, triisopropanolamine and other alcohol, hydramine, lipid have well
Compatibility triisopropanolamine can be replaced to be used alone completely when making cement grinding aid, can also be matched with other substances
It uses.
4, due to the special construction of strand, there is good compatibility with each Series Admixtures of concrete, can also make
It is directly used for concrete admixture.
Specific embodiment
The polyether polyhydroxy tertiary amine cement grinding aid preparation method of the present embodiment, main chain and low hydroxyl including aminated compounds
It is worth the branch of polyester polyol, the polyether polyhydroxy tertiary amine cement that main chain and the branch form " pectination " or " dendroid " helps
Grinding agent molecular structure, active function groups are the synthetic of amido, contain ether in ether polyhydroxy tertiary amine cement grinding aid molecular structure
Key.
Aminated compounds is polyether polyhydroxy tertiary amine.
Aminated compounds further includes triisopropanolamine.
Low hydroxyl value polyester polyol is benzoic anhydride polyester polyol.
The weight ratio of polyether polyhydroxy tertiary amine, triisopropanolamine, benzoic anhydride polyester polyol are as follows:
30~80 parts of polyether polyhydroxy tertiary amine；
0~20 part of triisopropanolamine；
10~20 parts of benzoic anhydride polyester polyol.
Above-mentioned polyether polyhydroxy tertiary amine cement grinding aid can be made by following preparation method, and preparation method includes following step
It is rapid:
A, aminated compounds and low hydroxyl value polyester polyol addition water are mixed, is stirred evenly；
B, chain extender, crosslinking agent and catalyst is added, stirs evenly；
C, 80~120 DEG C are heated to and is maintained, is chemically reacted 1~3 hour, polyether polyhydroxy tertiary amine cement grinding aid is generated
Liquid.
Wherein, aminated compounds polyether polyhydroxy tertiary amine can be used or for polyether polyhydroxy tertiary amine andTriisopropanolamine's
Mixture.
Benzoic anhydride polyester polyol can be used in low hydroxyl value polyester polyol.
Ethylenediamine or N- dihydroxy aniline etc. can be used in chain extender, and N- methylene-bisacrylamide or two can be used in crosslinking agent
Vinyl benzene etc..
Iron oxide Fe2O3 etc. can be used in catalyst.
Polyether polyhydroxy tertiary amine cement grinding aid of the invention is a kind of novel cement grinding aid, is in chain extender, hands over
Under the action of joining agent, catalyst, using triisopropanolamine as main chain, using low hydroxyl value polyester polyol as branch, by artificially dividing
Son design forms the macromolecule new material with " pectination " or " dendroid " molecular structure, contains ehter bond in molecular structure,
Active function groups are the synthetic of amido.It is more powerful to the grinding-aid effect of cement, alcohol, alcohol are better than to the grinding-aid effect of cement
The substances such as amine, lipid.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of polyether polyhydroxy tertiary amine cement grinding aid, it is characterised in that: main chain and low hydroxyl value including aminated compounds are poly-
The polyether polyhydroxy tertiary amine cement that the branch of ester polyol, the main chain and the branch form " pectination " or " dendroid " helps
Grinding agent molecular structure, active function groups are the synthetic of amido, are contained in the ether polyhydroxy tertiary amine cement grinding aid molecular structure
There is ehter bond.
2. polyether polyhydroxy tertiary amine cement grinding aid as described in claim 1, it is characterised in that: the aminated compounds is poly-
Ether polyhydroxy tertiary amine.
3. polyether polyhydroxy tertiary amine cement grinding aid as claimed in claim 2, it is characterised in that: the aminated compounds also wraps
Include triisopropanolamine.
4. polyether polyhydroxy tertiary amine cement grinding aid as claimed in claim 3, it is characterised in that: the low hydroxyl value polyester polyols
Alcohol is benzoic anhydride polyester polyol.
5. polyether polyhydroxy tertiary amine cement grinding aid as claimed in claim 3, it is characterised in that: the polyether polyhydroxy uncle
The weight ratio of amine, the triisopropanolamine, the benzoic anhydride polyester polyol are as follows:
30~80 parts of polyether polyhydroxy tertiary amine；
0~20 part of triisopropanolamine；
10~20 parts of benzoic anhydride polyester polyol.
6. a kind of polyether polyhydroxy tertiary amine cement grinding aid preparation method described in any one of claim 1 to 5, feature exist
In: the following steps are included:
A, aminated compounds and low hydroxyl value polyester polyol addition water are mixed, is stirred evenly；
B, chain extender, crosslinking agent and catalyst is added, stirs evenly；
C, 80~120 DEG C are heated to and is maintained, is chemically reacted 1~3 hour, polyether polyhydroxy tertiary amine cement grinding aid liquid is generated
Body.
7. polyether polyhydroxy tertiary amine cement grinding aid preparation method as claimed in claim 6, it is characterised in that: the amine
Close object be polyether polyhydroxy tertiary amine or be polyether polyhydroxy tertiary amine and triisopropanolamine mixture.
8. polyether polyhydroxy tertiary amine cement grinding aid as claimed in claim 7, it is characterised in that: the low hydroxyl value polyester polyols
Alcohol is benzoic anhydride polyester polyol.
9. polyether polyhydroxy tertiary amine cement grinding aid as claimed in claim 7, it is characterised in that: the chain extender is ethylenediamine
Or N- dihydroxy aniline, the crosslinking agent are N- methylene-bisacrylamide or divinylbenzene.
10. polyether polyhydroxy tertiary amine cement grinding aid as claimed in claim 7, it is characterised in that: the catalyst is oxidation
Iron Fe2O3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471407.0A CN110498927A (en) | 2018-05-17 | 2018-05-17 | A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810471407.0A CN110498927A (en) | 2018-05-17 | 2018-05-17 | A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110498927A true CN110498927A (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810471407.0A Pending CN110498927A (en) | 2018-05-17 | 2018-05-17 | A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180055A (en) * | 2018-10-15 | 2019-01-11 | 山东鑫圭新材料科技有限公司 | A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof |
| CN112174570A (en) * | 2020-10-10 | 2021-01-05 | 江苏润天建材有限公司 | Environment-friendly cement grinding aid and preparation method thereof |
-
2018
- 2018-05-17 CN CN201810471407.0A patent/CN110498927A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180055A (en) * | 2018-10-15 | 2019-01-11 | 山东鑫圭新材料科技有限公司 | A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof |
| CN112174570A (en) * | 2020-10-10 | 2021-01-05 | 江苏润天建材有限公司 | Environment-friendly cement grinding aid and preparation method thereof |
| CN112174570B (en) * | 2020-10-10 | 2022-05-03 | 江苏润天建材有限公司 | Environment-friendly cement grinding aid and preparation method thereof |
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