CN105001965A - Releasing agent special for bare concrete and preparation method thereof - Google Patents
Releasing agent special for bare concrete and preparation method thereof Download PDFInfo
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- CN105001965A CN105001965A CN201510307254.2A CN201510307254A CN105001965A CN 105001965 A CN105001965 A CN 105001965A CN 201510307254 A CN201510307254 A CN 201510307254A CN 105001965 A CN105001965 A CN 105001965A
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Abstract
The invention relates to a releasing agent special for bare concrete and a preparation method thereof. The releasing agent special for the bare concrete is a water dispersion solution and comprises raw materials including organic modified silicone oil accounting for 62%-75% of the total mass of the raw materials, polyacrylamide accounting for 0.01%-0.05% of the total mass of the raw materials, fatty acid amide accounting for 3%-5% of the total mass of the raw materials, organic amine accounting for 0.01%-0.2% of the total mass of the raw materials, polyoxypropylene glycerol ether accounting for 10%-15% of the total mass of the raw materials and water accounting for 11%-18% of the total mass of the raw materials. The polyacrylamide is firstly solved in the water, the temperature is improved to be 35-55 DEG C, other components are added after even stirring, natural cooling is performed after re-stirring to obtain the releasing agent special for the bare concrete. The appearance effect of a bare concrete cement product can be improved, the surface of the bare concrete cement product can be smooth and free of air bubbles, the releasing agent special for the bare concrete is environmentally friendly, free of pollution and low in cost, 1-7.5 times of water can be added for dilution when the releasing agent is used, 3-4 times of continuous releasing can be performed through one-time spraying, and performance is stable.
Description
Technical field
The present invention relates to concrete admixture Application Areas, be specifically related to a kind of special mold releasing agent for fair-faced concrete and preparation method thereof.
Background technology
Clear-water concrete is also called finished concrete or decorative concrete, is the construction style using the texture of himself as decorative cover, and to visual appearance, smooth surface, lines, smooth and easy and uniform color proposes higher requirement to this architectural presentation form.From to economize on resources and environmental protection angle, clear-water concrete structure is that one-time-concreting is shaping, does not need to plaster and pick cutter and repairs, both can reduce using and wasting of material of construction, can reduce again the formaldehyde that discharges in finishing material to the injury of HUMAN HEALTH.The prefabricated components of clear-water concrete cement products more and more receive the concern of people in building field; in order to accelerate the mould rotary speed of cement products in engineering; protection template exempts from corrosion; and require that more smooth, the surperficial complete bubble-free of the appearance effect after the demoulding, texture are remarkable, select the preparation of parting agent special to clear-water concrete to be absolutely necessary.
The pure oils releasing agent of general use (mineral oil, animal oil or plant wet goods), but its effect only making concrete and mould separate smoothly, be difficult to the situation improving concrete surface hornet's nest.A kind of concrete parting agent and preparation method thereof disclosed in publication number CN103409218 A, be prepared from aqueous with lard, rosin, sodium hydroxide, emulsifying agent, tributyl phosphate, formaldehyde, empgen BB and appropriate organo montmorillonite, this method needs saponification reaction at 95 ~ 105 DEG C, processing condition are harsh, and containing formaldehyde, be unfavorable for environmental requirement.A kind of Special release agent for concrete and preparation method thereof disclosed in publication number CN 103103011 A is a kind of emulsion-type releasing agent prepared with mineral oil, emulsifying agent, defoamer, rust inhibitor and lipid acid, uses after can adding the water dilution of 2 ~ 6 times.
Summary of the invention
The present invention ground object provides a kind of special mold releasing agent for fair-faced concrete to improve the deficiencies in the prior art; Another object of the present invention is to provide the preparation method of above-mentioned releasing agent; The precast-concrete form of clear-water concrete cement products uses special releasing agent, utilizes the low viscosity of releasing agent and eliminate the effect of interior formwork, thus make clear-water concrete reach body structure surface solid colour, object that flat appearance is smooth.
Technical scheme of the present invention is: a kind of special mold releasing agent for fair-faced concrete, it is characterized in that the mass percent that its feed composition and component account for raw material total amount is respectively:
Preferred above-mentioned organically-modified silicone oil is amino-terminated polydimethylsiloxane or dual polyethylene polydimethylsiloxane;
Preferred above-mentioned polyacrylamide is non-ionic polyacrylamide, and its molecular weight is 2,000,000 ~ 1,500 ten thousand;
Preferred above-mentioned fatty acid amide is cocoanut fatty acid diethanolamide;
Preferred above-mentioned organic amine is diethanolamine, N, N-dimethylethanolamine, quadrol or distearyl amine;
Present invention also offers the preparation method of above-mentioned a kind of special mold releasing agent for fair-faced concrete: first that polyacrylamide is soluble in water, be warming up to 35 ~ 55 DEG C, organically-modified silicone oil, fatty acid amide, organic amine, polypropylene glycerol aether is added after stirring, naturally cooling after stirring again, namely obtains a kind of special mold releasing agent for fair-faced concrete.Prepared releasing agent is water dispersion solution.Preferably above-mentioned churning time is again 30 ~ 120 minutes.
Beneficial effect:
(1) organically-modified silicone oil is chosen, unique organic group makes methyl-silicone oil have strong water-soluble, after reacting with non-ionic polyacrylamide emulsifying agent, enhance its coating property and lubricity, make the demoulding easily easy, polypropylene glycerol aether largely eliminates the bubble of faced concrete surface, improves the appearance effect of clear-water concrete cement products.
(2) the present invention is a kind of releasing agent of water-latex type, 1 ~ 7.5 times of highly diluted scope, and spraying once can the demoulding 3 ~ 4 times continuously, stable performance, and concrete adhesive capacity is extremely low after the demoulding, and to punching block without any corrosive nature, the work-ing life of template can be extended.
(3) at-20 DEG C ~ 45 DEG C, the storage time reaches 30 months, there will not be layering, demulsifying phenomenon, and preparation technology is simple, raw material is environment friendly and pollution-free, with low cost, is applicable to large-scale promotion and uses.
Embodiment
Example 1
First 0.1g non-ionic polyacrylamide (molecular weight is 2,000,000) is dissolved in 119.8g water, be warming up to 50 DEG C, add the amino-terminated polydimethylsiloxane of 750g, 30g cocoanut fatty acid diethanolamide, 0.1g diethanolamine, 100g polypropylene glycerol aether after stirring, stir naturally cooling after 60 minutes and namely obtain a kind of special mold releasing agent for fair-faced concrete.
Gained releasing agent viscosity is 79.8mPa.s, thin up 3 times, and through JC/T945-2005 standard testing demolding performace, after the continuous demoulding 3 times, concrete adhesive capacity is 1.8g/m
2, to punching block non-corroding ,-20 DEG C ~ 45 DEG C stably stored after 30 months, performance is unchanged.
Example 2
First 0.3g non-ionic polyacrylamide (molecular weight is 8,000,000) is dissolved in 178.7g water, be warming up to 55 DEG C, 655g dual polyethylene polydimethylsiloxane, 45g cocoanut fatty acid diethanolamide, 1gN is added after stirring, N-dimethylethanolamine, 120g polypropylene glycerol aether, stir naturally cooling after 120 minutes and namely obtain a kind of special mold releasing agent for fair-faced concrete.
Gained releasing agent viscosity is 83.1mPa.s, thin up 5 times, and through JC/T945-2005 standard testing demolding performace, after the continuous demoulding 4 times, concrete adhesive capacity is 2.1g/m
2, to punching block non-corroding ,-20 DEG C ~ 45 DEG C stably stored after 30 months, performance is unchanged.
Example 3
First 0.5g non-ionic polyacrylamide (molecular weight is 1,200 ten thousand) is dissolved in 177.5g water, be warming up to 35 DEG C, add 620g dual polyethylene polydimethylsiloxane, 50g cocoanut fatty acid diethanolamide, 2g quadrol, 150g polypropylene glycerol aether after stirring, stir naturally cooling after 30 minutes and namely obtain a kind of special mold releasing agent for fair-faced concrete.
Gained releasing agent viscosity is 81.2mPa.s, thin up 7.5 times, and through JC/T945-2005 standard testing demolding performace, after the continuous demoulding 3, concrete adhesive capacity is 2.0g/m
2, to punching block non-corroding ,-20 DEG C ~ 45 DEG C stably stored after 30 months, performance is unchanged.
Example 4
First 0.43g non-ionic polyacrylamide (molecular weight is 1,500 ten thousand) is dissolved in 128.07g water, be warming up to 45 DEG C, add the amino-terminated polydimethylsiloxane of 700g, 35g cocoanut fatty acid diethanolamide, 1.5g distearyl amine, 135g polypropylene glycerol aether after stirring, stir naturally cooling after 90 minutes and namely obtain a kind of special mold releasing agent for fair-faced concrete.
Gained releasing agent viscosity is 80.2mPa.s, thin up 1.5 times, through JC/T945-2005 standard testing demolding performace, and concrete adhesive capacity 1.8g/m after the continuous demoulding 4 times
2, to punching block non-corroding ,-20 DEG C ~ 45 DEG C stably stored after 30 months, performance is unchanged.
Claims (7)
1. a special mold releasing agent for fair-faced concrete, is characterized in that the mass percent that its feed composition 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%.
2. special mold releasing agent for fair-faced concrete according to claim 1, is characterized in that described organically-modified silicone oil is amino-terminated polydimethylsiloxane or dual polyethylene polydimethylsiloxane.
3. special mold releasing agent for fair-faced concrete according to claim 1, is characterized in that described polyacrylamide is non-ionic polyacrylamide, and its molecular weight is 2,000,000 ~ 1,500 ten thousand.
4. special mold releasing agent for fair-faced concrete according to claim 1, is characterized in that described fatty acid amide is cocoanut fatty acid diethanolamide.
5. special mold releasing agent for fair-faced concrete according to claim 1, is characterized in that described organic amine is diethanolamine, N, N-dimethylethanolamine, quadrol or distearyl amine.
6. prepare the method for special mold releasing agent for fair-faced concrete as claimed in claim 1 for one kind, its concrete steps are: first that polyacrylamide is soluble in water, be warming up to 35 ~ 55 DEG C, organically-modified silicone oil, fatty acid amide, organic amine, polypropylene glycerol aether is added after stirring, after stirring, cooling, namely obtains a kind of special mold releasing agent for fair-faced concrete again.
7. method according to claim 6, is characterized in that described churning time is again 30 ~ 120 minutes.
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| CN201510307254.2A CN105001965B (en) | 2015-06-08 | 2015-06-08 | A kind of special mold releasing agent for fair-faced concrete and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN107353991A (en) * | 2017-06-30 | 2017-11-17 | 常州思宇知识产权运营有限公司 | A kind of concrete demoulding liquid and preparation method thereof |
| 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 |
| CN107937095A (en) * | 2017-11-16 | 2018-04-20 | 松花江水力发电有限公司丰满大坝重建工程建设局 | A kind of concrete oil-based release agent with surface defoaming function |
| CN108611169A (en) * | 2018-04-20 | 2018-10-02 | 安徽瑞和新材料有限公司 | A kind of clear-water concrete modified oil-based release agent 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 |
| CN115287115A (en) * | 2022-08-05 | 2022-11-04 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
| 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 |
| CN107353991A (en) * | 2017-06-30 | 2017-11-17 | 常州思宇知识产权运营有限公司 | A kind of concrete demoulding liquid and preparation method thereof |
| CN107937095A (en) * | 2017-11-16 | 2018-04-20 | 松花江水力发电有限公司丰满大坝重建工程建设局 | A kind of concrete oil-based release agent with surface defoaming function |
| CN108611169A (en) * | 2018-04-20 | 2018-10-02 | 安徽瑞和新材料有限公司 | A kind of clear-water concrete modified oil-based release agent 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 |
| CN115287115A (en) * | 2022-08-05 | 2022-11-04 | 中冶武汉冶金建筑研究院有限公司 | Water-based concrete release agent 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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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. |