CN109721277A - A kind of multifunctional assistant and preparation method thereof haveing excellent performance - Google Patents

A kind of multifunctional assistant and preparation method thereof haveing excellent performance Download PDF

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Publication number
CN109721277A
CN109721277A CN201910105061.7A CN201910105061A CN109721277A CN 109721277 A CN109721277 A CN 109721277A CN 201910105061 A CN201910105061 A CN 201910105061A CN 109721277 A CN109721277 A CN 109721277A
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China
Prior art keywords
starch ether
coarse whiting
parts
cellulose
weight
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CN201910105061.7A
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Chinese (zh)
Inventor
邹华俊
蔡秋萍
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Huzhou Shengshi Huajun New Material Co Ltd
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Huzhou Shengshi Huajun New Material Co Ltd
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Priority to CN201910105061.7A priority Critical patent/CN109721277A/en
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Abstract

The present invention provides a kind of multifunctional assistants, include following component: 10~30 parts of polyvinyl alcohol, 5~20 parts of polyethylene glycol oxide, 10~40 parts of starch ether, 10~20 parts of cellulose and 10~30 parts of coarse whiting by weight.Auxiliary agent provided by the present invention can significantly increase the mobility of mortar, compression strength and water retention property.

Description

A kind of multifunctional assistant and preparation method thereof haveing excellent performance
Technical field
The present invention designs mortar auxiliary agent field, more specifically a kind of multifunctional assistant and preparation method thereof haveing excellent performance.
Background technique
Plastering for building, painting, masonry mortar are mixed by cement, Sha Heshui at present.In mixed process, cement Particle surface and the hydrolysis of water contact start and aquation, generate calcium silicate hydrate and calcium hydroxide, and these neoformations are gradually coagulated Poly-, much larger than water to the infiltration power inside cement granules, these neoformations are condensed into condensate and are wrapped in cement cohesiveness Around grain, retardance cement granules are further hydrolyzed and aquation, and through aquation are only the meagre a part of cement particle surface, Its internal formation is difficult to hydrolyzed and aquation " core ".Cause mobility and the workability of mortar poor in this way, in the construction process In order to obtain suitable workability, water consumption is not only increased, but also lime paste, foaming agent, lime are mixed in mortar The auxiliary agents such as king or mortar king are to improve the mobility and workability of mortar.
According to function difference, auxiliary agent specifically includes that improvement rheological property, such as various water-reducing agents, air entraining agent and pumping admixture. Adjust setting time, hardening capacity, such as retarder, early strength agent and accelerator.Improve durability, such as air entraining agent, waterproofing agent With corrosion inhibitor etc..Improve other performance, such as air-entrainment, swelling agent, colorant, antifreezing agent, waterproofing agent and pumping admixture.
Current additive performance is single, and more or less have the defects that it is certain, such as: lime paste mix plastering, powder In brush or masonry mortar, snuff, cracking, hollowing and other issues are easy to appear after a period of time;And foaming agent, lime king, sand Slurry king mixes and is easy to produce bubble in mortar, and there are crafters in mortar, reduces the intensity of mortar.
Accordingly, it is desirable to provide a kind of multifunctional assistant haveing excellent performance solves above-mentioned technical problem.
Summary of the invention
In order to solve the above-mentioned technical problem, the first aspect of the present invention provides a kind of multifunctional assistant.
As a kind of perferred technical scheme, the auxiliary agent includes by weight following component:
10~30 parts of polyvinyl alcohol, 5~20 parts of polyethylene glycol oxide, 10~40 parts of starch ether, 10~20 parts of cellulose and again 10~30 parts of calcium.
As a kind of perferred technical scheme, the weight part ratio of the starch ether and cellulose is (2~0.5): 1.
As a kind of perferred technical scheme, the coarse whiting and 60~40% that the coarse whiting is 40~60% by weight percent Modified heavy calcium carbonate composition.
As a kind of perferred technical scheme, the modified heavy calcium carbonate is that the hydroxyl fatty acid that carbon atom number is 8~14 changes The coarse whiting of property.
As a kind of perferred technical scheme, it is pungent that the hydroxyl fatty acid that the carbon atom number is 8~14 is selected from 2- hydroxyl At least one of acid, 3- Hydroxyoctanoic acid, 5- Hydroxyoctanoic acid, 2- hydroxynonanoic acid, 3- hydroxynonanoic acid.
As a kind of perferred technical scheme, the weight part ratio of the starch ether, cellulose and coarse whiting is (2~1): 1:(1 ~2), the coarse whiting mesh number is 200~800 mesh.
As a kind of perferred technical scheme, the average degree of polymerization of the polyvinyl alcohol is 1700~2400, and alcoholysis degree is 80~99.
As a kind of perferred technical scheme, the weight average molecular weight of the polyethylene glycol oxide is 3,000,000-800 ten thousand.
As a kind of perferred technical scheme, the starch ether is ion type starch ether and/or non-ionic starch ether.
In order to solve the above-mentioned technical problem, the second aspect of the present invention provides a kind of preparation method of multifunctional assistant.
As a kind of perferred technical scheme, the preparation method of the auxiliary agent, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 100~200rpm/min stir 30~60min to get.
The beneficial effects of the present invention are:
Auxiliary agent provided by the present invention, can when ensuring high compressive strength and reinforced mortar mobility and water-retaining property Energy.
Specific embodiment
The detailed description for preferred implementation method of the invention below of participating in the election of and including embodiment this hair can be more easily to understand Bright content.Unless otherwise defined, all technologies used herein and scientific term have common with fields of the present invention The normally understood identical meaning of technical staff.When there is a conflict, the definition in this specification shall prevail.
As used herein term " by ... preparation " it is synonymous with "comprising".Term "comprising" used herein, " comprising ", " having ", " containing " or its any other deformation, it is intended that cover non-exclusionism includes.For example, the combination comprising listed elements Object, step, method, product or device are not necessarily limited to those elements, but may include not expressly listed other elements or Such composition, step, method, product or the intrinsic element of device.
Conjunction " Consists of " excludes any element that do not point out, step or component.If in claim, this Phrase will make claim closed, so that it is not included the material in addition to the material of those descriptions, but relative normal Except rule impurity.When being rather than immediately following after theme in the clause that phrase " Consists of " appears in claim main body, It is only limited to element described in the clause;Other elements are not excluded except the claim as a whole.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open When range " 1 to 5 ", described range should be interpreted as including range " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to 5 ", " 1 to 3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to include its end Value and all integers and score in the range.
Singular includes that plural number discusses object, unless the context clearly dictates otherwise." optional " or it is " any It is a kind of " refer to that the item described thereafter or event may or may not occur, and the description include situation that event occurs and The situation that event does not occur.
Approximate term in specification and claims is used to modify quantity, and it is specific to indicate that the present invention is not limited to this Quantity further includes the acceptable modified part without will lead to the change of dependency basis this function close with the quantity.Phase It answers, modifies a numerical value with " about ", " about " etc., mean that the present invention is not limited to the exact numericals.In some examples, approximate Term likely corresponds to the precision of the instrument of measurement numerical value.In present specification and claims, range limits can be with Combination and/or exchange, these ranges if not stated otherwise include all subranges contained therebetween.
In addition, indefinite article "an" before element of the present invention or component and "one" quantitative requirement to element or component (i.e. frequency of occurrence) unrestriction.Therefore "one" or "an" should be read as including one or at least one, and odd number The element or component of form also include plural form, unless the obvious purport of the quantity refers to singular.
Although illustrating that broad range of numberical range and parameter of the invention are approximations, listed in specific example Numerical value is reported as accurately as possible.However, any numerical value inherently includes the standard deviation by finding in its each self-test measurement The certain errors necessarily led to.
Unmentioned drug or component are commercially available in the present invention.
In order to solve the above-mentioned technical problem, the first aspect of the present invention provides a kind of multifunctional assistant.
In a particular embodiment, the auxiliary agent includes by weight following component:
10~30 parts of polyvinyl alcohol, 5~20 parts of polyethylene glycol oxide, 10~40 parts of starch ether, 10~20 parts of cellulose and again 10~30 parts of calcium.
In a preferred embodiment, the auxiliary agent includes by weight following component:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 15 parts of cellulose and 24 parts of coarse whiting.
In a particular embodiment, the weight part ratio of the starch ether and cellulose is (2~0.5): 1.
In a preferred embodiment, the weight part ratio of the starch ether and cellulose is 1.6:1.
When the weight part ratio for controlling the starch ether and cellulose is 1.6:1, the mobility of mortar can be effectively improved. Heretofore described polyvinyl alcohol can be improved the adhesion strength of mortar, but the mobility for also resulting in mortar is deteriorated.The application People has been surprisingly found that, starch ether, and the weight part ratio of starch ether and cellulose is added are as follows: (2~0.5): when 1, can improve sand The mobility of slurry and sagging phenomenon will not be generated.The possible reason is: the polar group on one side starch ether and cellulose can With with water molecules, make Free water become combine water, meet the requirement of the abundant aquation of mortar material;On the other hand, starch ether There is stronger molecular polarity, can be formed in mortar particle surface and stablize smooth protective layer, the protective layer of formation reduces mortar Frictional force between particle.The protective layer and cellulose that starch ether is formed interact, and form big elastic net structure, make sand Slurry has preferable contraction distortion performance.
In a particular embodiment, the coarse whiting and 60~40% that the coarse whiting is 40~60% by weight percent change Property coarse whiting composition.
In a preferred embodiment, the coarse whiting is 45% coarse whiting and 55% modified heavy calcium carbonate group by weight percent At.
When coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, mortar can be significantly increased Compression strength.In the present invention, the starch ether and cellulose of addition have air-entraining effect, and a part of gas is difficult to arrange in system Out, lead to the reduction of mortar mechanical property.Coarse whiting, which is added, can improve the application operability of mortar, but coarse whiting and cellulose, form sediment The poor compatibility of the systems such as powder ether, therefore coarse whiting is modified with hydroxyl fatty acid.The applicant has been surprisingly found that, when with carbon When the hydroxyl fatty acid that atomicity is 8~14 is modified, additionally it is possible to which the compression strength for improving mortar guesses possible reason It is that hydroxyl fatty acid is smaller in the surface tension of whole system, during mortar mixing, fatty acid chain is in gas-liquid interface Between constantly spread, permeate, inhibition forms elastic membrane or causes bubble ambient stress unbalance.
In a particular embodiment, the modified heavy calcium carbonate is that the hydroxyl that carbon atom number is 8~14 is fatty acid modified Coarse whiting.
In a preferred embodiment, the modified heavy calcium carbonate is the fatty acid modified coarse whiting of hydroxyl that carbon atom number is 9.
In a particular embodiment, the hydroxyl fatty acid that the carbon atom number is 8~14 is selected from 2- Hydroxyoctanoic acid, 3- At least one of Hydroxyoctanoic acid, 5- Hydroxyoctanoic acid, 2- hydroxynonanoic acid, 3- hydroxynonanoic acid.
In a preferred embodiment, the modified heavy calcium carbonate is 2- hydroxynonanoic acid and/or 3- hydroxynonanoic acid.
In preferred embodiment, the modified heavy calcium carbonate is 2- hydroxynonanoic acid.No. CAS of the 2- hydroxynonanoic acid be 70215-04-2。
In a particular embodiment, the weight part ratio of the starch ether, cellulose and coarse whiting is (2~1): 1:(1~ 2), the coarse whiting mesh number is 200~800 mesh.
In a preferred embodiment, the weight part ratio of the starch ether, cellulose and coarse whiting is 1.6:1:1.6, described Coarse whiting mesh number is 500 mesh.
With this condition, the performance of keeping humidity of mortar dramatically increases.Applicants have discovered that when starch ether, cellulose, coarse whiting Weight part ratio is (2~1): 1:(1~2) when, when coarse whiting mesh number is 200~800 mesh, water retentivity of mortar is enable to be improved.It can Can the reason of be;Part defoaming is played the role of in the presence of modified heavy calcium carbonate, and after mortar hardening, there are still parts in mortar Minute bubbles, these minute bubbles can slow down the evaporation rate of free water;The hydroxy fatty acid in modified heavy calcium carbonate and system exist simultaneously Consistency problem after mortar hardening, can be migrated out from system, form hydrophobic protective layer in mortar surface.Unmodified coarse whiting It can fill in the gap that the long-chains such as starch ether, cellulose are wound, cement system is made to form enclosure space.Coarse whiting mesh number The either large or small out-of-flatness that will cause mortar surface.
In a particular embodiment, the average degree of polymerization of the polyvinyl alcohol be 1700~2400, alcoholysis degree be 80~ 99。
In a preferred embodiment, the average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88.The poly- second The model 2488 of enol.The polyvinyl alcohol purchase is from Shenzhen uncle along Chemical Co., Ltd..
In a particular embodiment, the weight average molecular weight of the polyethylene glycol oxide is 3,000,000-800 ten thousand.
In a preferred embodiment, the weight average molecular weight of the polyethylene glycol oxide is 5,000,000.The polyethylene glycol oxide purchase It buys in Zibo Kai Yuanheng industry Chemical Co., Ltd., model KY-50.
In a particular embodiment, the starch ether is ion type starch ether and/or non-ionic starch ether.
In a preferred embodiment, the ion type starch enzyme is carboxymethyl starch ether and/or cationic starch ether;Institute Stating non-ionic starch enzyme is hydroxypropyl starch ether and/or bydroxyethyl starch ether.
In preferred embodiment, the starch ether is hydroxypropyl starch ether.The substitution of the hydroxypropyl starch ether Spending (DS) is 0.1~2, and viscosity is 400~1200mPas.
In embodiment still more preferably, the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) be 0.6, viscosity 800mPas.The hydroxypropul starch enzyme purchase is limited from the Shanghai City prosperous biotechnology of power Company.
Degree of substitution (DS) definition: refer to substituted average hydroxyl number in each glucosyl group.The most of grape of starch Glycosyl containing 3 can substituted hydroxyl, so DS maximum value be 3.
In a particular embodiment, the cellulose is selected from methylcellulose, sodium carboxymethylcellulose, hydroxy ethyl fiber At least one of element.
In a preferred embodiment, the cellulose is hydroxypropyl methyl cellulose, the hydroxypropyl methyl cellulose Methoxyl substitution be 19~24%;Hydroxypropyl degree of substitution is 4~12%.
In preferred embodiment, the cellulose is hydroxypropyl methyl cellulose, the hydroxypropyl methyl fiber The methoxyl substitution of element is 21.5%;Hydroxypropyl degree of substitution is 8%.The hydroxypropyl methyl cellulose purchase is safe and sound from Shenzhen Biotechnology Co., Ltd.
In order to solve the above-mentioned technical problem, the second aspect of the present invention provides a kind of preparation method of multifunctional assistant.
In a particular embodiment, the preparation method of the auxiliary agent, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 100~200rpm/min stir 30~60min to get.
In a preferred embodiment, the preparation method of the auxiliary agent, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Illustrated below with specific embodiment.
Embodiment 1
Embodiment 1
The first aspect of embodiment 1 provides a kind of multifunctional assistant, includes following component by weight:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 15 parts of cellulose and 24 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 9, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 1 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 2
The first aspect of embodiment 2 provides a kind of multifunctional assistant, includes following component by weight:
10 parts of polyvinyl alcohol, 5 parts of polyethylene glycol oxide, 10 parts of starch ether, 10 parts of cellulose and 10 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 9, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 2 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 3
The first aspect of embodiment 3 provides a kind of multifunctional assistant, includes following component by weight:
30 parts of polyvinyl alcohol, 20 parts of polyethylene glycol oxide, 40 parts of starch ether, 20 parts of cellulose and 30 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 9, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 3 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 4
The first aspect of embodiment 4 provides a kind of multifunctional assistant, includes following component by weight:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 8 parts of cellulose and 24 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 10, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 4 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 5
The first aspect of embodiment 5 provides a kind of multifunctional assistant, includes following component by weight:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 15 parts of cellulose and 24 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 70% coarse whiting and 30% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 9, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 5 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 6
The first aspect of embodiment 6 provides a kind of multifunctional assistant, includes following component by weight:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 15 parts of cellulose and 24 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 15, the modified heavy calcium carbonate are 2- hydroxypentadecanoic acid.The coarse whiting mesh number For 500 mesh.
The second aspect of embodiment 6 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 7
The first aspect of embodiment 7 provides a kind of multifunctional assistant, includes following component by weight:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 8 parts of cellulose and 16 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 10,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 9, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 7 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 8
The first aspect of embodiment 8 provides a kind of multifunctional assistant, includes following component by weight:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 15 parts of cellulose and 24 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2800, alcoholysis degree 70;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 9, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 8 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 9
The first aspect of embodiment 9 provides a kind of multifunctional assistant, includes following component by weight:
20 parts of polyvinyl alcohol, 13 parts of polyethylene glycol oxide, 24 parts of starch ether, 15 parts of cellulose and 24 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is carboxymethyl starch ether.The carboxymethyl starch ether Degree of substitution (DS) is 0.9, viscosity 600mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 45% coarse whiting and 55% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 9, the modified heavy calcium carbonate are 2- hydroxynonanoic acid.The coarse whiting mesh number is 500 Mesh.
The second aspect of embodiment 9 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Embodiment 10
The first aspect of embodiment 10 provides a kind of multifunctional assistant, includes following component by weight:
40 parts of polyvinyl alcohol, 5 parts of polyethylene glycol oxide, 24 parts of starch ether, 8 parts of cellulose and 16 parts of coarse whiting.
The average degree of polymerization of the polyvinyl alcohol is 2400, alcoholysis degree 88;
The weight average molecular weight of the polyethylene glycol oxide is 5,000,000;
The starch ether is hydroxypropyl starch ether, and the starch ether is hydroxypropyl starch ether.The hydroxypropyl starch ether Degree of substitution (DS) is 0.6, viscosity 800mPas;
The cellulose is hydroxypropyl methyl cellulose, and the methoxyl substitution of the hydroxypropyl methyl cellulose is 21.5%;Hydroxypropyl degree of substitution is 8%;
The coarse whiting is that 70% coarse whiting and 30% modified heavy calcium carbonate form by weight percent, and the modified heavy calcium carbonate is carbon The fatty acid modified coarse whiting of the hydroxyl that atomicity is 15, the modified heavy calcium carbonate are 2- hydroxypentadecanoic acid.The coarse whiting mesh number For 700 mesh.
The second aspect of embodiment 10 provides a kind of preparation method of multifunctional assistant, comprises the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed is Under 150rpm/min stir 45min to get.
Performance test evaluation
The preparation-obtained auxiliary agent of embodiment 1-10 is applied in actual product, and it is strong to carry out water retention, tensile viscosity The test of degree and compression strength, testing standard JCJ/T10-2011.Test result is shown in Table 1
Table 1
The present invention is by being added starch ether, and the weight part ratio of starch ether and cellulose are as follows: (2~0.5): when 1, is mentioning In the case where rising compression strength, additionally it is possible to improve the mobility of mortar and sagging phenomenon will not be generated.
In the present invention, the starch ether and cellulose of addition have air-entraining effect, and a part of gas is difficult to be discharged in system, lead Cause the reduction of mortar mechanical property.Coarse whiting, which is added, can improve the application operability of mortar, but coarse whiting and cellulose, starch ether etc. The poor compatibility of system, therefore coarse whiting is modified with hydroxyl fatty acid.The present invention passes through 8~14 hydroxyl fatty acid Coarse whiting is modified, can be improved the compression strength of mortar.
In addition, the weight part ratio of present invention control starch ether, cellulose, coarse whiting is (2~1): 1:(1~2) when, coarse whiting mesh When number is 200~800 mesh, water retentivity of mortar is enable to be improved.
Embodiment above-mentioned is merely illustrative, and is used to explain the present invention some features of the method.Appended right It is required that the range as wide as possible for being intended to require to be contemplated that, and embodiments as presented herein is only according to all possible reality Apply the explanation of the embodiment of the combined selection of example.Therefore, the purpose of applicant is that the attached claims are not illustrated this The exemplary selectional restriction of the feature of invention.Some numberical ranges used also include son in the claims Range, the variation in these ranges should also be construed to be covered by the attached claims in the conceived case.

Claims (10)

1. a kind of multifunctional assistant, which is characterized in that include following component by weight:
10~30 parts of polyvinyl alcohol, 5~20 parts of polyethylene glycol oxide, 10~40 parts of starch ether, 10~20 parts of cellulose and coarse whiting 10 ~30 parts.
2. auxiliary agent according to claim 1, which is characterized in that the weight part ratio of the starch ether and cellulose be (2~ 0.5): 1.
3. auxiliary agent according to claim 1, which is characterized in that the coarse whiting that the coarse whiting is 40~60% by weight percent Modified heavy calcium carbonate with 60~40% forms.
4. auxiliary agent according to claim 3, which is characterized in that the modified heavy calcium carbonate is that carbon atom number is 8~14 containing hydroxyl The fatty acid modified coarse whiting of base.
5. auxiliary agent according to claim 4, which is characterized in that the hydroxyl fatty acid that the carbon atom number is 8~14 selects From at least one of 2- Hydroxyoctanoic acid, 3- Hydroxyoctanoic acid, 5- Hydroxyoctanoic acid, 2- hydroxynonanoic acid, 3- hydroxynonanoic acid.
6. auxiliary agent according to claim 1, which is characterized in that the weight part ratio of the starch ether, cellulose and coarse whiting is (2~1): 1:(1~2), the coarse whiting mesh number is 200~800 mesh.
7. auxiliary agent according to claim 1, which is characterized in that the average degree of polymerization of the polyvinyl alcohol be 1700~ 2400, alcoholysis degree is 80~99.
8. auxiliary agent according to claim 1, which is characterized in that the weight average molecular weight of the polyethylene glycol oxide is 3,000,000- 8000000.
9. auxiliary agent according to claim 1, which is characterized in that the starch ether is ion type starch ether and/or nonionic Type starch ether.
10. the preparation method of -9 described in any item auxiliary agents according to claim 1, which is characterized in that comprise the following steps:
Polyvinyl alcohol, polyethylene glycol oxide, starch ether, cellulose, coarse whiting are added into mixing machine, under room temperature, revolving speed be 100~ Under 200rpm/min stir 30~60min to get.
CN201910105061.7A 2019-02-01 2019-02-01 A kind of multifunctional assistant and preparation method thereof haveing excellent performance Pending CN109721277A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111302696A (en) * 2020-03-03 2020-06-19 深圳市三绿科技有限公司 Regulator for recycled aggregate mortar and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2085368A2 (en) * 2008-02-01 2009-08-05 ALPOL Gips Sp. z o.o. Joint mortar especially for shaped clinker bricks
CN101628802A (en) * 2009-08-18 2010-01-20 广州市苏葆节能环保材料有限公司 Composite inorganic heat insulation and waterproof mortar and application thereof
CN103553418A (en) * 2013-09-27 2014-02-05 江苏兆佳建材科技有限公司 Ready-mixed mortar water-retention thixotropic agent and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2085368A2 (en) * 2008-02-01 2009-08-05 ALPOL Gips Sp. z o.o. Joint mortar especially for shaped clinker bricks
CN101628802A (en) * 2009-08-18 2010-01-20 广州市苏葆节能环保材料有限公司 Composite inorganic heat insulation and waterproof mortar and application thereof
CN103553418A (en) * 2013-09-27 2014-02-05 江苏兆佳建材科技有限公司 Ready-mixed mortar water-retention thixotropic agent and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
兰明章编: "《预拌砂浆实用检测技术》", 31 January 2008 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111302696A (en) * 2020-03-03 2020-06-19 深圳市三绿科技有限公司 Regulator for recycled aggregate mortar and preparation method thereof

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