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 PDF

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Publication number
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
China
Prior art keywords
tertiary amine
grinding aid
polyhydroxy tertiary
polyether polyhydroxy
cement grinding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810471407.0A
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Chinese (zh)
Inventor
曹晓东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Xingui New Material Technology Co Ltd
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Shandong Xingui New Material Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Xingui New Material Technology Co Ltd filed Critical Shandong Xingui New Material Technology Co Ltd
Priority to CN201810471407.0A priority Critical patent/CN110498927A/en
Publication of CN110498927A publication Critical patent/CN110498927A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • C04B24/28Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • C04B24/28Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/283Polyesters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/91Polymers modified by chemical after-treatment
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G81/00Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/52Grinding aids; Additives added during grinding

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

A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof
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.
CN201810471407.0A 2018-05-17 2018-05-17 A kind of polyether polyhydroxy tertiary amine cement grinding aid and preparation method thereof Pending CN110498927A (en)

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Application Number Priority Date Filing Date Title
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CN110498927A true CN110498927A (en) 2019-11-26

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Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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