CN106393402A - Novel concrete release agent and preparation method thereof - Google Patents
Novel concrete release agent and preparation method thereof Download PDFInfo
- Publication number
- CN106393402A CN106393402A CN201610701442.8A CN201610701442A CN106393402A CN 106393402 A CN106393402 A CN 106393402A CN 201610701442 A CN201610701442 A CN 201610701442A CN 106393402 A CN106393402 A CN 106393402A
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- parts
- sodium
- modified
- acid
- mica powder
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/384—Treating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
Abstract
The invention discloses a novel concrete release agent and a preparation method thereof. The novel concrete release agent is prepared from, by weight, 5-7 parts of polyvinyl alcohol, 4-6 parts of stearic acid, 3-5 parts of octadecanamide, 1-5 parts of rosin modified phenolic resin, 4-8 parts of modified konjac glucomannan, 15-20 parts of konjac flour, 15-20 parts of sodium alga acid, 1-3 parts of boraxes, 5-7 parts of mica powder, 1-3 parts of nano-kaolin, 2-4 parts of aluminum sulfate, 2-6 parts of sodium methyl silicate, 20-30 parts of ethyl alcohol, 1-3 parts of sodium dodecyl sulfate, and 0.3-0.7 part of an organic silicon defoamer. The novel concrete release agent has the advantages of being excellent in release effect, high in strength, free of pollution and the like, and is a promising concrete additive.
Description
Technical field
The present invention relates to a kind of new concrete releasing agent, belong to technical field of concrete additives.
Background technology
With the fast development of concrete, role in concrete construction for the concrete admixture also becomes increasingly to weigh
Will.Its not only volume little, and concrete performance can be improved, satisfaction is actually needed, cement can also be saved simultaneously, reduce energy consumption and
The effects such as reduce pollutant emission.Common additive has：Early strength agent, water reducer, air entraining agent, retarder, releasing agent etc..Its
In, concrete parting agent, also known as concrete isolation agent or demoulding lubricant, it is that one kind coats or is sprayed on template inwall, can produce
Raw one layer of barrier film, plays lubrication and buffer action, can also effectively reduce adhesive force between concrete and template simultaneously, make concrete
Template can smoothly be departed from form removal, keep the intact material of concrete shape.
At present, the concrete parting agent species on market is various, and different types of releasing agent is between concrete and template
Stripping result be not quite similar.Common are：Soaps releasing agent, used oil class, plant oil and paraffin release agent.Soaps take off
Though mould agent has the advantages that cheap, after the fermentation of such releasing agent, give out unpleasant stink, pollute environment, and be difficult
The demoulding, concrete surface is coarse；Though used oil class releasing agent has the advantages that cheap, greasy dirt easily pollutes the clothing of workmen
After thing and the demoulding, concrete surface is coarse, has black greasy dirt, is difficult the demoulding；Though it is excellent that plant oil releasing agent has that raw material is easy to get
Point, but such is to be entirely vegetable oil, directly affects the effect theing cement solidifies, easily causes concrete surface coarse；Wax oil
Though class releasing agent has the advantages that the easy demoulding, such is through emulsifier, contains the volatile organics such as formaldehyde in emulsifying agent
Organic solvent, has injury to human body, and cost is higher.
Chinese patent Authorization Notice No.：CN103409218B discloses entitled " a kind of concrete parting agent and its preparation side
The patent of method ", the composition of raw materials of this releasing agent is：Water is the 80-95% of gross mass；The mass ratio of lard and rosin is 5：1；Its
Remaining in terms of the 100% of lard and the total amount of rosin, NaOH 10-26%；Emulsifying agent 10-30%；Tributyl phosphate 0.1-
1%；Formaldehyde 0.2-1.5%；Empgen BB 0.3-2.2%；Appropriate organo montmorillonite.Although it can obtain certain
Stripping result, but it is substantially or soaps releasing agent, still suffers from deficiency, can't make us simultaneously in terms of concrete strength
Satisfied.Additionally, the use of formaldehyde, it is unfavorable for environmental protection.Therefore, it is necessary for continuing to explore with research concrete parting agent.
Content of the invention
Ask for the not enough technology of concrete parting agent self-defect, concrete strength and environmental protection in above-mentioned prior art
Topic, the technical problem to be solved is to propose one kind to effectively improve stripping result and intensity, and environmental protection is new
Type concrete parting agent and preparation method thereof.
A kind of new concrete releasing agent, is made up of each component of following weight：5～7 parts of polyvinyl alcohol, tristearin
4～6 parts of acid, 3～5 parts of stearic amide, 1～5 part of rosin modified phenolic resin, 4～8 parts of modified konjac glucomannan, konjaku
15～20 parts of powder, 15～20 parts of sodium alginate, 1～3 part of borax, 5～7 parts of mica powder, 1～3 part of nano kaoline, aluminum sulfate 2
～4 parts, 2～6 parts of sodium methyl silicate, 20～30 parts of ethanol, 1～3 part of dodecyl sodium sulfate, organic silicon defoamer 0.3～0.7
Part.
Preferably,
A kind of new concrete releasing agent, is made up of each component of following weight：6 parts of polyvinyl alcohol, stearic acid 5
Part, 4 parts of stearic amide, 3 parts of rosin modified phenolic resin, 6 parts of modified konjac glucomannan, 18 parts of konjaku flour, sodium alginate
18 parts, 2 parts of borax, 6 parts of mica powder, 2 parts of nano kaoline, 3 parts of aluminum sulfate, 4 parts of sodium methyl silicate, 25 parts of ethanol, dodecane
2 parts of base sodium sulfonate, 0.5 part of organic silicon defoamer.
The preparation method of described new concrete releasing agent, comprises the following steps：
1) 4～6 parts of konjaku glucomannans are configured to the aqueous solution that concentration is 10～15%, and adjust pH for value 7～8,
Simultaneously under magnetic agitation state, by titrate in the way of add 2～4% hydrogen peroxide, at 40～50 DEG C water bath with thermostatic control oxidation 3～
After 4h, plus 1～3% Ludox, being placed in frequency is ultrasonic 20～30min on 30～40KHz ultrasonic machine, you can obtain modification
Konjaku glucomannan, standby；
2) mica powder described in is through following steps pretreatment：First by the acid alcohol (hydrochloric acid of mica powder and equivalent：Absolute ethyl alcohol
=1：1) solution mixing, it is super on 20～30KHz ultrasonic machine for adding 0.1～0.3 part of aliphatic acid to be placed in frequency after 15～20min
Sound 20～30min, then drying is ground into the modified micaceous powder of 200～300 mesh, standby；
3) first ethanol is heated in a water bath 80～90 DEG C, sequentially adds polyvinyl alcohol, stearic amide and rosin and change
Property phenolic resin stirring mixing, be then cooled to 40～50 DEG C, sequentially add stearic acid and modified konjac glucomannan stirring is mixed
Close, after being finally cooled to room temperature, add organic silicon defoamer stirring mixing, obtain batch mixing A；
4) konjaku flour and sodium alginate are configured to mixed gel, are then heated to 70～90 DEG C in a water bath, boron successively
Sand, modified micaceous powder, nano kaoline and dodecyl sodium sulfate stirring mixing, obtain mixed material B；
5) batch mixing A, B are mixed, then sequentially add aluminum sulfate and sodium methyl silicate stirring mixing, obtain new concrete
Releasing agent.
Described konjaku flour：Sodium alginate=1：1
Compared with prior art, the invention has the beneficial effects as follows：
1st, sweet with polyvinyl alcohol, stearic acid, stearic amide, rosin modified phenolic resin and modified konjaku Portugal in the present invention
Glycan is film-forming components, forms multiple film, strengthens film strength, compactness and stability, and secure adhesion is in template and coagulation
Native surface, simultaneously under the lubrication of polyether modified silicon oil, has good stripping result.Additionally, by different modifications
Method modified konjac glucomannan, makes the performance of film improve further, thus being favorably improved concrete surface integrality；Stearic
Acid can be reacted with calcium ion in concrete and be generated the calcium stearate with lubrication and waterproof, contributes to the demoulding；
2nd, konjaku flour and sodium alginate compound and form plural gel, and are coated on borax, mica powder and nano kaoline
Surface.By borax, nano kaoline release and modified micaceous powder characteristic, plural gel is made to have absorption and release function, from
And it is favorably improved the stripping result of new concrete releasing agent；
3rd, sodium methyl silicate has good penetrant crystalline and micro-expansibility, in ethanol, aluminum sulfate and auxiliary agent dodecane
Under the effect of base sodium sulfonate, the surface of infiltration concrete, increase concrete density, improve the intensity of concrete.
Specific embodiment
The present invention provides a kind of new concrete releasing agent and preparation method thereof, to achieve the object of the present invention, technical side
Case and effect are clearer, clear and definite, and the present invention is described in more detail below.
A kind of new concrete releasing agent, is made up of each component of following weight：5～7 parts of polyvinyl alcohol, tristearin
4～6 parts of acid, 3～5 parts of stearic amide, 1～5 part of rosin modified phenolic resin, 4～8 parts of modified konjac glucomannan, konjaku
15～20 parts of powder, 15～20 parts of sodium alginate, 1～3 part of borax, 5～7 parts of mica powder, 1～3 part of nano kaoline, aluminum sulfate 2
～4 parts, 2～6 parts of sodium methyl silicate, 20～30 parts of ethanol, 1～3 part of dodecyl sodium sulfate, organic silicon defoamer 0.3～0.7
Part；
The preparation method of described new concrete releasing agent, comprises the following steps：
1) 4～6 parts of konjaku glucomannans are configured to the aqueous solution that concentration is 10～15%, and adjust pH for value 7～8,
Simultaneously under magnetic agitation state, by titrate in the way of add 2～4% hydrogen peroxide, at 40～50 DEG C water bath with thermostatic control oxidation 3～
After 4h, plus 1～3% Ludox, being placed in frequency is ultrasonic 20～30min on 30～40KHz ultrasonic machine, you can obtain modification
Konjaku glucomannan, standby；
2) mica powder described in is through following steps pretreatment：First by the acid alcohol (hydrochloric acid of mica powder and equivalent：Absolute ethyl alcohol
=1：1) solution mixing, it is super on 20～30KHz ultrasonic machine for adding 0.1～0.3 part of aliphatic acid to be placed in frequency after 15～20min
Sound 20～30min, then drying is ground into the modified micaceous powder of 200～300 mesh, standby；
3) first ethanol is heated in a water bath 80～90 DEG C, sequentially adds polyvinyl alcohol, stearic amide and rosin and change
Property phenolic resin stirring mixing, be then cooled to 40～50 DEG C, sequentially add stearic acid and modified konjac glucomannan stirring is mixed
Close, after being finally cooled to room temperature, add organic silicon defoamer stirring mixing, obtain batch mixing A；
4) konjaku flour and sodium alginate are configured to mixed gel, are then heated to 70～90 DEG C in a water bath, boron successively
Sand, modified micaceous powder, nano kaoline and dodecyl sodium sulfate stirring mixing, obtain mixed material B；
5) batch mixing A, B are mixed, then sequentially add aluminum sulfate and sodium methyl silicate stirring mixing, obtain new concrete
Releasing agent.
Described konjaku flour：Sodium alginate=1：1
Embodiment 1
A kind of new concrete releasing agent, is made up of each component of following weight：6 parts of polyvinyl alcohol, stearic acid 5
Part, 4 parts of stearic amide, 3 parts of rosin modified phenolic resin, 6 parts of modified konjac glucomannan, 18 parts of konjaku flour, sodium alginate
18 parts, 2 parts of borax, 6 parts of mica powder, 2 parts of nano kaoline, 3 parts of aluminum sulfate, 4 parts of sodium methyl silicate, 25 parts of ethanol, dodecane
2 parts of base sodium sulfonate, 0.5 part of organic silicon defoamer.
Embodiment 2
A kind of new concrete releasing agent, is made up of each component of following weight：5 parts of polyvinyl alcohol, stearic acid 4
Part, 3 parts of stearic amide, 1 part of rosin modified phenolic resin, 4 parts of modified konjac glucomannan, 15 parts of konjaku flour, sodium alginate
15 parts, 1 part of borax, 5 parts of mica powder, 1 part of nano kaoline, 2 parts of aluminum sulfate, 2 parts of sodium methyl silicate, 20 parts of ethanol, dodecane
1 part of base sodium sulfonate, 0.3 part of organic silicon defoamer.
Embodiment 3
A kind of new concrete releasing agent, is made up of each component of following weight：7 parts of polyvinyl alcohol, stearic acid 6
Part, 5 parts of stearic amide, 5 parts of rosin modified phenolic resin, 8 parts of modified konjac glucomannan, 20 parts of konjaku flour, sodium alginate
20 parts, 3 parts of borax, 7 parts of mica powder, 3 parts of nano kaoline, 4 parts of aluminum sulfate, 6 parts of sodium methyl silicate, 30 parts of ethanol, dodecane
3 parts of base sodium sulfonate, 0.7 part of organic silicon defoamer.
(comparative example 1 is only that comparative example 1 with the difference of embodiment 1, does not add modified konjaku Portugal sweet poly- in comparative example 1
Sugar, remaining is with embodiment 1).
Comparative example 2 (comparative example 2 is only that with the difference of embodiment 1, does not add modified micaceous powder in comparative example 2, remaining
Same embodiment 1).
(comparative example 3 is only that comparative example 3 with the difference of embodiment 1, has not both added modified konjaku Portugal sweet in comparative example 3
Glycan, does not add modified micaceous powder yet, and remaining is with embodiment 1).
Above-described embodiment 1-3, comparative example 1-3 and the prepared concrete parting agent of background technology (CN103409218B) are adopted
Tested with prior art, test result is as shown in table 1 below：
Table 1 concrete parting agent test result
As can be seen that for the concrete parting agent of different formulations preparation is relative to background technology, there is stripping result good, strong
The advantages of degree is high and pollution-free, is a kind of rising concrete admixture.
Certainly, it is that the preferred embodiments of the disclosure is described in detail above, not the present invention is limited with this
Practical range, the equivalence changes that all principles under this invention, construction and structure are made, the protection of the present invention all should be covered by
In the range of.
Claims (3)
1. a kind of new concrete releasing agent it is characterised in that：It is made up of each component of following weight：Polyvinyl alcohol 5
～7 parts, 4～6 parts of stearic acid, 3～5 parts of stearic amide, 1～5 part of rosin modified phenolic resin, modified konjac glucomannan 4
～8 parts, 15～20 parts of konjaku flour, 15～20 parts of sodium alginate, 1～3 part of borax, 5～7 parts of mica powder, nano kaoline 1～3
Part, 2～4 parts of aluminum sulfate, 2～6 parts of sodium methyl silicate, 20～30 parts of ethanol, 1～3 part of dodecyl sodium sulfate, organosilicon froth breaking
0.3～0.7 part of agent；
Described konjaku flour：Sodium alginate=1：1.
2. new concrete releasing agent according to claim 1 it is characterised in that：6 parts of polyvinyl alcohol, 5 parts of stearic acid, hard
4 parts of resin acid acid amides, 3 parts of rosin modified phenolic resin, 6 parts of modified konjac glucomannan, 18 parts of konjaku flour, 18 parts of sodium alginate,
2 parts of borax, 6 parts of mica powder, 2 parts of nano kaoline, 3 parts of aluminum sulfate, 4 parts of sodium methyl silicate, 25 parts of ethanol, dodecyl sodium sulfonate
2 parts of sodium, 0.5 part of organic silicon defoamer.
3. new concrete releasing agent according to claim 1 preparation method it is characterised in that：Comprise the following steps：
1) 4～6 parts of konjaku glucomannans are configured to the aqueous solution that concentration is 10～15%, and adjust pH for value 7～8, simultaneously
Under magnetic agitation state, in the way of titrating, add 2～4% hydrogen peroxide, water bath with thermostatic control at 40～50 DEG C aoxidizes 3～4h
Afterwards, plus 1～3% Ludox, being placed in frequency is ultrasonic 20～30min on 30～40KHz ultrasonic machine, you can obtain modified evil spirit
Taro Glucomannan, standby；
2) mica powder described in is through following steps pretreatment：First by the acid alcohol (hydrochloric acid of mica powder and equivalent：Absolute ethyl alcohol=1：
1) solution mixing, adding 0.1～0.3 part of aliphatic acid to be placed in frequency after 15～20min is ultrasonic 20 on 20～30KHz ultrasonic machine
～30min, then drying is ground into the modified micaceous powder of 200～300 mesh, standby；
3) first ethanol is heated in a water bath 80～90 DEG C, sequentially adds polyvinyl alcohol, stearic amide and Abietyl modified phenol
Urea formaldehyde stirring mixing, is then cooled to 40～50 DEG C, sequentially adds stearic acid and modified konjac glucomannan stirring mixing,
After be cooled to room temperature after, add organic silicon defoamer stirring mixing, obtain batch mixing A；
4) konjaku flour and sodium alginate are configured to mixed gel, are then heated to 70～90 DEG C in a water bath, successively borax, change
Property mica powder, nano kaoline and dodecyl sodium sulfate stirring mixing, obtain mixed material B；
5) batch mixing A, B are mixed, then sequentially add aluminum sulfate and sodium methyl silicate stirring mixing, obtain the new concrete demoulding
Agent.
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| CN201610701442.8A CN106393402A (en) | 2016-08-19 | 2016-08-19 | Novel concrete release agent and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106493839A (en) * | 2016-10-19 | 2017-03-15 | 大连市铭源全科技开发有限公司 | Concrete parting agent prepared by monoxone modified konjac glucomannan |
| CN109652835A (en) * | 2018-12-28 | 2019-04-19 | 重庆新久融科技有限公司 | A kind of easy mold release aluminum alloy mould plate and preparation method thereof |
| CN110065149A (en) * | 2019-04-15 | 2019-07-30 | 广西利升石业有限公司 | Produce jet printing type release agent, preparation method and its application method of artificial stone |
| CN112497585A (en) * | 2020-12-15 | 2021-03-16 | 山东明珠材料科技有限公司 | Efficient environment-friendly internal mold release agent and preparation method thereof |
| CN116333575A (en) * | 2023-03-27 | 2023-06-27 | 上海云谈科技有限公司 | Green multi-substrate universal rainproof and stain-resistant light-transmitting coating for solar power supply wireless communication system and preparation method thereof |
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| CN109652835A (en) * | 2018-12-28 | 2019-04-19 | 重庆新久融科技有限公司 | A kind of easy mold release aluminum alloy mould plate and preparation method thereof |
| CN110065149A (en) * | 2019-04-15 | 2019-07-30 | 广西利升石业有限公司 | Produce jet printing type release agent, preparation method and its application method of artificial stone |
| CN112497585A (en) * | 2020-12-15 | 2021-03-16 | 山东明珠材料科技有限公司 | Efficient environment-friendly internal mold release agent and preparation method thereof |
| CN116333575A (en) * | 2023-03-27 | 2023-06-27 | 上海云谈科技有限公司 | Green multi-substrate universal rainproof and stain-resistant light-transmitting coating for solar power supply wireless communication system and preparation method thereof |
| CN116333575B (en) * | 2023-03-27 | 2024-03-26 | 上海云谈科技有限公司 | Green multi-substrate universal rainproof and stain-resistant light-transmitting coating for solar power supply wireless communication system and preparation method thereof |
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Application publication date: 20170215 |