CN105001965B - A kind of special mold releasing agent for fair-faced concrete and preparation method thereof - Google Patents
A kind of special mold releasing agent for fair-faced concrete and preparation method thereof Download PDFInfo
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- CN105001965B CN105001965B CN201510307254.2A CN201510307254A CN105001965B CN 105001965 B CN105001965 B CN 105001965B CN 201510307254 A CN201510307254 A CN 201510307254A CN 105001965 B CN105001965 B CN 105001965B
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Abstract
The present invention relates to a kind of special mold releasing agent for fair-faced concrete and preparation method thereof；The special mold releasing agent for fair-faced concrete is water dispersion solution, and the mass percent that its raw material components and component account for raw material total amount is respectively：Organically-modified silicone oil 62%~75%, polyacrylamide 0.01%~0.05%, fatty acid amide 3%~5%, organic amine 0.01%~0.2%, polypropylene glycerol aether 10%~15%, water 11%~18%.It is first that polyacrylamide is soluble in water, 35~55 DEG C are warming up to, other components are stirring evenly and then adding into, rear natural cooling is stirred for, that is, obtains a kind of special mold releasing agent for fair-faced concrete.The present invention can effectively improve the appearance of clear-water concrete cement products, make the smooth bubble-free in its surface, it is a kind of special mold releasing agent for fair-faced concrete, it is environment friendly and pollution-free, with low cost, 1~7.5 times of water dilution can be added when using, and spraying once can be continuously stripped 3~4 times, performance is stable.
Description
Technical field
The present invention relates to concrete admixture application field, and in particular to a kind of special mold releasing agent for fair-faced concrete and its system
Preparation Method.
Background technology
Clear-water concrete is also known as finished concrete or architectural concrete, is building using the texture of its own as decorative cover
Form is built, this architectural presentation form is to presentation quality, surface is smooth, lines are smooth and uniform color proposes higher requirement.
From economizing on resources and environmental protection angle, clear-water concrete structure is molded for one-time-concreting, it is not necessary to plasters and picks chisel and repair
Mend, can both reduce using and wasting for construction material, the formaldehyde discharged in ornament materials can be reduced again to health
Injury.The prefabricated components of clear-water concrete cement products are increasingly paid close attention in building field by people, in order to accelerate work
The mould rotary speed of cement products in journey, protection template exempts from corrosion, and requires that the appearance after being stripped is more smooth, table
The complete bubble-free in face, texture are remarkable, and preparation of the selection parting agent special to clear-water concrete is essential.
Pure oils releasing agent (mineral oil, animal oil or vegetable oil etc.) is typically used, but it only makes concrete and mould
Smoothly separated effect, it is difficult to improve the situation of concrete surface hornet's nest.It is a kind of mixed disclosed in publication number CN103409218 A
Solidifying soil release agent and preparation method thereof, is with lard, rosin, sodium hydroxide, emulsifying agent, tributyl phosphate, formaldehyde, dodecyl
Glycine betaine and appropriate organo montmorillonite are prepared from aqueous, and the method needs saponification, technique bar at 95~105 DEG C
Part is harsh, and contains formaldehyde, is unfavorable for environmental requirement.A kind of special demoulding of concrete disclosed in the A of publication number CN 103103011
Agent and preparation method thereof, is a kind of emulsion-type demoulding prepared with mineral oil, emulsifying agent, defoamer, corrosion inhibitor and aliphatic acid
Agent, is used after the water dilution that can add 2~6 times.
The content of the invention
Ground of the invention purpose is that a kind of special mold releasing agent for fair-faced concrete is provided to improve the deficiencies in the prior art；This
The another object of invention is to provide the preparation method of above-mentioned releasing agent；On the precast-concrete form of clear-water concrete cement products
Use special releasing agent, low viscosity and the effect of elimination interior formwork using releasing agent, so that clear water coagulation
Soil reaches the smooth purpose of body structure surface solid colour, flat appearance.
The technical scheme is that：A kind of special mold releasing agent for fair-faced concrete, it is characterised in that its raw material components and group
The mass percent for point accounting for raw material total amount is respectively：
It is preferred that above-mentioned organically-modified silicone oil is amino-terminated dimethyl silicone polymer or dual polyethylene dimethyl silicone polymer；
It is preferred that above-mentioned polyacrylamide is non-ionic polyacrylamide, its molecular weight is 2,000,000~15,000,000；
It is preferred that above-mentioned fatty acid amide is cocoanut fatty acid diethanolamide；
It is preferred that above-mentioned organic amine is diethanol amine, N, N- dimethylethanolamines, ethylenediamine or distearyl amine；
Present invention also offers a kind of preparation method of above-mentioned special mold releasing agent for fair-faced concrete：First by polyacrylamide
Amine is soluble in water, is warming up to 35~55 DEG C, is stirring evenly and then adding into organically-modified silicone oil, fatty acid amide, organic amine, polyoxy third
Alkene glycerin ether, is stirred for rear natural cooling, that is, obtains a kind of special mold releasing agent for fair-faced concrete.Prepared releasing agent is moisture
Dissipate solution.It is preferred that above-mentioned be stirred for the time for 30~120 minutes.
Beneficial effect：
(1) organically-modified silicone oil is chosen, unique organic group makes methyl-silicone oil have strong water-soluble, gathered with non-ionic
After the reaction of acrylamide emulsifying agent, its paintability and greasy property are enhanced so that light easy, the polyoxypropylene glyceryl of the demoulding
Ether largely eliminates the bubble of faced concrete surface, improves the appearance of clear-water concrete cement products.
(2) present invention is a kind of releasing agent of emulsion type, and 1~7.5 times of highly diluted scope, spraying once can be continuously stripped
3~4 times, performance is stable, and concrete adhesive capacity is extremely low after the demoulding, and to punching block without any corrosiveness, can extend template
Service life.
(3) storage time is up to 30 months at -20 DEG C~45 DEG C, is not in layering, demulsifying phenomenon, preparation technology letter
Single, raw material is environment friendly and pollution-free, and with low cost, suitable large-scale promotion is used.
Embodiment
Example 1
0.1g non-ionic polyacrylamides (molecular weight is 2,000,000) are dissolved in 119.8g water first, 50 DEG C are warming up to,
It is stirring evenly and then adding into the amino-terminated dimethyl silicone polymers of 750g, 30g cocoanut fatty acid diethanolamides, 0.1g diethanols
Amine, 100g polypropylene glycerol aethers, natural cooling is to obtain a kind of special mold releasing agent for fair-faced concrete after stirring 60 minutes.
Gained releasing agent viscosity is 79.8mPa.s, is diluted with water 3 times, through JC/T945-2005 standard testing demolding performaces,
Concrete adhesive capacity is 1.8g/m after being continuously stripped 3 times2, to punching block non-corroding, in -20 DEG C~45 DEG C storage-stables 30 months
Afterwards, performance is unchanged.
Example 2
0.3g non-ionic polyacrylamides (molecular weight is 8,000,000) are dissolved in 178.7g water first, 55 DEG C are warming up to,
It is stirring evenly and then adding into 655g dual polyethylenes dimethyl silicone polymer, 45g cocoanut fatty acid diethanolamides, 1gN, N- diformazans
Ethylethanolamine, 120g polypropylene glycerol aethers, natural cooling is to obtain a kind of special demoulding of clear-water concrete after stirring 120 minutes
Agent.
Gained releasing agent viscosity is 83.1mPa.s, is diluted with water 5 times, through JC/T945-2005 standard testing demolding performaces,
Concrete adhesive capacity is 2.1g/m after being continuously stripped 4 times2, to punching block non-corroding, in -20 DEG C~45 DEG C storage-stables 30 months
Afterwards, performance is unchanged.
Example 3
0.5g non-ionic polyacrylamides (molecular weight is 12,000,000) are dissolved in 177.5g water first, 35 are warming up to
DEG C, it is stirring evenly and then adding into 620g dual polyethylenes dimethyl silicone polymer, 50g cocoanut fatty acid diethanolamides, 2g second two
Amine, 150g polypropylene glycerol aethers, natural cooling is to obtain a kind of special mold releasing agent for fair-faced concrete after stirring 30 minutes.
Gained releasing agent viscosity is 81.2mPa.s, 7.5 times is diluted with water, through JC/T945-2005 standard testing release properties
Can, concrete adhesive capacity is 2.0g/m after the continuous demoulding 32, to punching block non-corroding, in -20 DEG C~45 DEG C storage-stables 30
After month, performance is unchanged.
Example 4
0.43g non-ionic polyacrylamides (molecular weight is 15,000,000) are dissolved in 128.07g water first, 45 are warming up to
DEG C, it is stirring evenly and then adding into the amino-terminated dimethyl silicone polymers of 700g, 35g cocoanut fatty acid diethanolamides, 1.5g bis-
Stearylamine, 135g polypropylene glycerol aethers, natural cooling is to obtain a kind of special mold releasing agent for fair-faced concrete after stirring 90 minutes.
Gained releasing agent viscosity is 80.2mPa.s, 1.5 times is diluted with water, through JC/T945-2005 standard testing release properties
Can, concrete adhesive capacity 1.8g/m after being continuously stripped 4 times2, to punching block non-corroding, in -20 DEG C~45 DEG C storage-stables 30 months
Afterwards, performance is unchanged.
Claims (5)
1. a kind of special mold releasing agent for fair-faced concrete, it is characterised in that its raw material components and component account for the quality percentage of raw material total amount
Than being respectively：
Organically-modified silicone oil 62%~75%
Polyacrylamide 0.01%~0.05%
Fatty acid amide 3%~5%
Organic amine 0.01%~0.2%
Polypropylene glycerol aether 10%~15%
Water 11%~18%；
Wherein described organically-modified silicone oil is amino-terminated dimethyl silicone polymer or dual polyethylene dimethyl silicone polymer；Institute
The polyacrylamide stated is non-ionic polyacrylamide, and its molecular weight is 2,000,000~15,000,000.
2. special mold releasing agent for fair-faced concrete according to claim 1, it is characterised in that described fatty acid amide is coconut palm
Seed oil fatty diglycollic amide.
3. special mold releasing agent for fair-faced concrete according to claim 1, it is characterised in that described organic amine is diethanol
Amine, N, N- dimethylethanolamines, ethylenediamine or distearyl amine.
4. a kind of method for preparing special mold releasing agent for fair-faced concrete as claimed in claim 1, it is concretely comprised the following steps：First will
Polyacrylamide is soluble in water, is warming up to 35~55 DEG C, is stirring evenly and then adding into organically-modified silicone oil, fatty acid amide, organic
Amine, polypropylene glycerol aether, cool down after being stirred for, that is, obtain a kind of special mold releasing agent for fair-faced concrete.
5. method according to claim 4, it is characterised in that described was stirred for the time for 30~120 minutes.
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| CN105001965B true CN105001965B (en) | 2017-08-11 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190491A (en) * | 2016-07-15 | 2016-12-07 | 东至绿洲环保化工有限公司 | A kind of concreting building form removal agent |
| CN106190521A (en) * | 2016-07-15 | 2016-12-07 | 东至绿洲环保化工有限公司 | A kind of building template waterborne organic silicon releasing agent |
| WO2018018422A1 (en) * | 2016-07-26 | 2018-02-01 | 顾湘 | Water-soluble concrete release agent and preparation method therefor |
| CN107790617A (en) * | 2016-08-29 | 2018-03-13 | 镇江佳鑫精工设备有限公司 | A kind of Cast Iron Die pours releasing agent with cast aluminium |
| CN106520280A (en) * | 2016-09-29 | 2017-03-22 | 东至绿洲环保化工有限公司 | Modified silicone oil for demoulding of building metal formworks |
| CN107353991B (en) * | 2017-06-30 | 2020-06-09 | 烟台合力节能环保科技有限公司 | Concrete demolding liquid and preparation method thereof |
| CN107937095B (en) * | 2017-11-16 | 2021-06-15 | 松花江水力发电有限公司丰满大坝重建工程建设局 | Concrete oily release agent with surface defoaming function |
| CN108611169B (en) * | 2018-04-20 | 2021-05-04 | 安徽瑞和新材料有限公司 | Modified oily release agent for fair-faced concrete and preparation method thereof |
| CN108822945A (en) * | 2018-08-02 | 2018-11-16 | 株洲加美乐素建材有限公司 | A kind of clear-water concrete demoulding paint and preparation method thereof |
| CN112538397A (en) * | 2019-09-23 | 2021-03-23 | 江苏博思通新材料有限公司 | Release agent for prefabricated part concrete and preparation method thereof |
| CN115287115B (en) * | 2022-08-05 | 2023-03-10 | 中冶武汉冶金建筑研究院有限公司 | Water-based concrete release agent and preparation method thereof |
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| CN103756741B (en) * | 2013-12-20 | 2016-02-10 | 清华大学 | A kind of method utilizing the electrolytic tank of solid oxide preparing natural gas of renewable electric power |
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Address after: Zhongshan science and Technology Park Huixin Liuhe road Nanjing District 210048 Jiangsu province No. 22 Applicant after: JIANGSU ARIT NEW MATERIALS CO.,LTD. Address before: Zhongshan science and Technology Park Huixin Liuhe road Nanjing District 210048 Jiangsu province No. 22 Applicant before: JIANGSU ARIT NEW MATERIALS Co.,Ltd. Address after: Zhongshan science and Technology Park Huixin Liuhe road Nanjing District 210048 Jiangsu province No. 22 Applicant after: JIANGSU ARIT NEW MATERIALS Co.,Ltd. Address before: Zhongshan science and Technology Park Huixin Liuhe road Nanjing District 210048 Jiangsu province No. 22 Applicant before: JIANGSU ARIT NEW MATERIALS Co.,Ltd. |
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Address after: 210048 Huixin Road, Zhongshan science and Technology Park, Liuhe District, Nanjing, Jiangsu 22 Patentee after: JIANGSU ARIT NEW MATERIALS Co.,Ltd. Address before: 210048 Huixin Road, Zhongshan science and Technology Park, Liuhe District, Nanjing, Jiangsu 22 Patentee before: JIANGSU ARIT NEW MATERIALS CO.,LTD. |