CN1021031C - Mold release - Google Patents
Mold release Download PDFInfo
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- CN1021031C CN1021031C CN 91108073 CN91108073A CN1021031C CN 1021031 C CN1021031 C CN 1021031C CN 91108073 CN91108073 CN 91108073 CN 91108073 A CN91108073 A CN 91108073A CN 1021031 C CN1021031 C CN 1021031C
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- releasing agent
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- tween
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Abstract
The present invention relates to a mould releasing agent which is characterized in that the mould releasing agent comprises the following components of parts by weight: 60 to 150 parts of talcum powder, 0.1 to 3 parts of tween-80, 0.2 to 2.5 parts of span, 1 to 8 parts of synthetic detergent, 5 to 16 parts of sodium alginate, 0.1 to 3 parts of preservative agent, 0.9 to 2 parts of stabilizing agent and 360 to 1200 parts of water.
Description
The present invention relates to a kind of releasing agent, particularly relate to a kind of releasing agent of template surface brushing when being used for the architectural engineering placing concrete, its function has been the isolating film as demolding film effect.International Patent classificating number is C10M.
At present, existing both at home and abroad separating releasing agent great majority are minal oils, emulsification oils, paraffin wax class, fatty acid etc.The difficult drying that these separating releasing agents have is polluted reinforcing bar and concrete surface easily, and form removal rear surface oil removal workload is big, and plasters in conjunction with not firm because of greasy dirt dyes to cause, and has to cut a hole hair or sanding and handles, thereby improved engineering cost greatly.Some releasing agent raw material lacks, or cost is too high, thereby is difficult to apply.
In view of cast-in-place concrete in the current architectural engineering of China occupies very big proportion.Improving concrete surface quality, reduce cost, select for use high-quality, material inexpensive, that be easy to obtain to have great economic implications and social benefit as releasing agent, also is to improve concrete surface quality, reduces the important measures of cost.
At all deficiencies that above-mentioned existing releasing agent exists, the inventor has found a kind of high efficient demoulding agent through for many years lucubrate.
The object of the present invention is to provide a kind of high efficient demoulding agent, it has ample supply and prompt delivery, and is cheap, and preparation is simple, sanitation and hygiene, advantage such as isolation performance is good.
Another object of the present invention is to provide a kind of preparation method of releasing agent.
The 3rd purpose of the present invention is to provide a kind of purposes of releasing agent.
It is composed as follows for releasing agent of the present invention:
Talcum powder 60-150 part (parts by weight)
Tween 80 (Tween) 0.1-3(parts by weight)
Sapn (Span) 0.2-2.5 part
Synthetic detergent 1-3 part
Sodium alginate 5-16 part
Anticorrisive agent 0.1-3 part
Stabilizing agent 0.9-2 part
Water 360-1200 part
Talcum part is played the inserts effect in releasing agent of the present invention.So large usage quantity, general consumption is 60-150 part (weight), preferred 80-95 part (amount), and said here " part " refers to parts by weight, if no special instructions, all umbers all refer to parts by weight in specification.
Sapn (Span) is a nonionic emulsifier, is formed by sorbitan and higher fatty acids condensation, and stable performance can be brought into play bigger emulsification.Its consumption is generally 0.1-3 part, preferred 1.5-2.5 part.
Tween (Tween) is to be formed by hydroxyl and ethylene oxide condensation remaining in the sapn type emulsifying agent molecule.Polysorbas20, polysorbate40 and Tween 80 type are arranged.Water-soluble, be easy to disperse, in releasing agent, together play emulsification with sapn.Its consumption is generally 0.2-2.5 part, preferred 1.8-2.4 part.
Synthetic detergent is made up of several surfactants, because it can reduce the surface energy of water in the aqueous solution, plays isolations in releasing agent, soaks into, wetting dispersion, emulsification, solubilization, to the preparation of releasing agent with brush and all play good action.Its consumption is 1-3 part, preferred 2-4 part.
Sodium alginate (claiming mosanom again) molecular formula is (C
6H
7O
6Na) n, sodium alginate extract a kind of polysaccharide, the polymeric carbohydrate that processing and refining forms from sea-tangle.Become the aqueous solution of thickness after water-soluble, and have film forming, adhesivity, stability, solution and be physical and chemical performances such as neutrality.The consumption of sodium alginate in releasing agent is generally 5-16 part, preferred 6-10 part.
Anticorrisive agent is natrium nitrosum in this article, and is very easily water-soluble, is used for template antirust agent.Its consumption is generally 0.1-3 part.Preferred 0.9-2 part.
Stabilizing agent refers to rosin in this article, can increase the stability of releasing agent of the present invention, keeps chemical balance, and sterilization also increases wetting effect.Its consumption is generally 0.1-2 part.Preferred 0.5-1.5 part.
Water dissolves above-mentioned each component as a kind of solvent, and its consumption is generally 360-1200 part, preferred 850-950 part.
When the preparation releasing agent, should follow these steps to carry out:
Match ratio by weight in turbine stirrer, pour sodium alginate and talcum powder into, stirred three minutes, and added tween, sapn, synthetic detergent powder, anticorrisive agent again by the match ratio regulation, stabilizing agent (the each component consumption as mentioned above) through stir releasing agent.For easy to use, reduce freight volume, the present invention is a powdery white finished product.The job site adds the use of aqueous liquid body, the amount ranges of water such as above-mentioned more again.
When using releasing agent, should follow these steps to carry out:
(the weight ratio releasing agent is that 1 part of 30-40 ℃ of warm water is generally 5-7 part by proportioning with the releasing agent of white powdery, preferred 6 parts), be soaked in water 12-24 hour, make releasing agent be dissolved into liquid condition fully, stir and can use, tool using can all can with artificial brushing or with the electric spray gun spraying.
System injection allocation meaning item
(1) releasing agent is unsuitable for long storage time at high temperature, otherwise can cause viscosity to descend, also can be corrupt because of microbial decomposition.Hot weather construction should be with joining with usefulness, in case rotten.
When (2) soaking releasing agent, can not use the hot water more than 90 ℃, otherwise viscosity is descended significantly, influence is adhered to and stripping result.
(3) releasing agent generally can not freeze at subzero 4 ℃-5 ℃, uses as usual.
(4) releasing agent is suitable for and deposits.Generally deposited 1 year, viscometric properties changes little.
Releasing agent of the present invention can be applicable to the brushing of various templates, narrates several main application processes below respectively:
1, large form brushing: after the form removable, scuppit is scalped with long with being about to the surface adhesion thing, and cleaning is clean, again with length brush brushing releasing agent one time.Because brushing is easy, stripping result is good.The concrete bur is few, and brushing and cleaning holding time are short.Can handling after having brushed to the appointed place formwork in place.Compare with the used oil releasing agent.The smooth cleaning of large form with releasing agent brushing of the present invention.Reinforcing bar, ground, metope and operating personnel are not polluted.Concrete wall surface does not have the dipping phenomenon after the demoulding, needn't do other processing.
2, combined steel formwork brushing: generally after good template, carry out before laying reinforcing bar, also can formwork before the burst brushing, in the hot weather construction, the blanking time that should note brushing before back and the concrete cast can not be long.Because of the combined steel formwork smooth surface, caking property, the part that can reduce releasing agent of being exposed to the sun for a long time film breaks occurs, influences isolation effect.
3, lift slab lamination brushing: mostly the normally used lift slab releasing agent in each department is what used oil and talcum powder or used oil and paraffin wax etc. were modulated.Because of used oil dipping ceiling and ground.Cause and plaster, have to cut a hole hair or sanding and handle in conjunction with not firm.Thereby improved engineering cost.My company has adopted releasing agent of the present invention all to receive preferably isolation effect and has saved the expense that concrete surface is handled in engineerings such as Grain and Cooking Oil Processing Factory, Qingdao, 7811 factories.
Releasing agent of the present invention uses in various engineering has tangible economic benefit, and is analyzed as follows:
1, but the statistics of the use by the many places engineering, every liter of releasing agent brushing large form are 350-450 square metre, combined steel formwork 400-500 square metre; The coagulation earthen platform is sat 200-300 square metre; The lift slab lamination; 150-250 square metre.Every liter 7.1 yuan to 10 yuan of releasing agent prices are as follows with useless machine interleaving agent price contrast:
0.028 yuan/square metre of releasing agent of large form
0.045 yuan/square metre of used oil releasing agent
The coagulation earthen platform is sat with 0.021 yuan/square metre of releasing agent
0.065 yuan/square metre of used oil releasing agent
0.075 yuan/square metre of releasing agent of lift slab lamination (close rib box)
0.21 yuan/m of used oil releasing agent (used oil, talcum part)
2
0.094 yuan/square metre of releasing agent of lift slab lamination (flat board)
0.27 yuan/m of used oil releasing agent (used oil, paraffin wax, diesel oil)
2
2, compare with used oil, the consumption of releasing agent is few, and has reduced freight and stored difficulty, as 12900 square metres of restaurant, Haicheng City engineering large form contacts area.Use only 30 kilograms of releasing agents, if just need use the 1800-2500 kilogram with used oil, 7811 factories, four layers of lift slab lamination contact area is 3800 square metres for another example, uses only 20 kilograms of releasing agents, as if with being that machine oil need be with 1600 kilograms.
The price contrast of releasing agent of the present invention and used oil releasing agent sees Table 1:
Following embodiment further specifies of the present invention.But not limit the invention.
Embodiment 1,
Be used for being prepared as follows of large form releasing agent:
10 kilograms of sodium alginates
The talcum powder 120 kg
720 kilograms in water
0.3 kilogram of tween
0.5 kilogram of sapn
3 kilograms in synthetic detergent
0.3 kilogram of natrium nitrosum
1.2 kilograms of rosin
In turbine stirrer, connect weight proportion and pour sodium alginate and talcum powder into, stirred three minutes, add tween, sapn, synthetic detergent powder, anticorrisive agent natrium nitrosum by the proportioning regulation evenly again, stabilizing agent rosin promptly becomes the finished product releasing agent after stirring.
In finished product releasing agent input cylinder, add warm water (30-40 ℃) and dissolve, the water yield adds in proportion, soaks releasing agent 14 hours, just is dissolved into liquid fully, promptly becomes releasing agent.
Embodiment 2,
Preparation lift slab interlayer releasing agent, the preparation method is with example 1, and it is as follows to fill a prescription:
800 kilograms in water
10 kilograms of sodium alginates
130 kilograms of talcum parts
0.25 kilogram of tween
0.15 kilogram of sapn
2 kilograms of synthetic detergent powders
0.2 kilogram of natrium nitrosum
0.6 kilogram of rosin
Claims (3)
1, a kind of releasing agent, the brushing template surface plays the isolating film as demolding film effect when being used for the architectural engineering placing concrete, and this releasing agent is composed as follows:
Talcum powder 60-150 part
Tween 80 0.1-3 part
Sapn 0.2-2.5 part
Synthetic detergent 1-8 part
Sodium alginate 5-16 part
Anticorrisive agent 0.1-3 part
Stabilizing agent 0.9-2 part
Water 360-1200 part
Said umber is parts by weight.
2, releasing agent according to claim 1 is characterized in that this releasing agent is composed as follows:
Talcum powder 80-95 part
Tween 80 1.8-2.4 part
Synthetic detergent 2-4 part
Sodium alginate 6-10 part
Anticorrisive agent 0.9-2 part
Stabilizing agent 0.5-1.5 part
Water 850-950 part
Said umber is parts by weight.
3, according to claim 1 or 2 said releasing agents, it is characterized in that said anticorrisive agent is a natrium nitrosum, stabilizing agent is a rosin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108073 CN1021031C (en) | 1991-11-01 | 1991-11-01 | Mold release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108073 CN1021031C (en) | 1991-11-01 | 1991-11-01 | Mold release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1059683A CN1059683A (en) | 1992-03-25 |
| CN1021031C true CN1021031C (en) | 1993-06-02 |
Family
ID=4909008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108073 Expired - Fee Related CN1021031C (en) | 1991-11-01 | 1991-11-01 | Mold release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021031C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830032B (en) * | 2009-03-10 | 2013-07-17 | 刘新智 | Preparation method of concrete long-acting mould release agent |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4343818A1 (en) * | 1993-12-22 | 1995-06-29 | Rhein Chemie Rheinau Gmbh | External release agent |
| CN103059619A (en) * | 2013-02-12 | 2013-04-24 | 浙江力源化工有限公司 | Isolating agent for reclaimed rubber |
| CN104478282A (en) * | 2014-11-04 | 2015-04-01 | 张桂华 | Concrete isolating agent |
| CN105033172A (en) * | 2015-07-27 | 2015-11-11 | 芜湖黄燕实业有限公司 | Release agent used for aluminum alloy part die-casting die and preparation method thereof |
| CN105033171A (en) * | 2015-07-27 | 2015-11-11 | 芜湖黄燕实业有限公司 | Release agent used for aluminum alloy hub die-casting die and preparation method thereof |
| CN107932701A (en) * | 2017-11-10 | 2018-04-20 | 万继山 | A kind of artificial quartz in lump releasing agent and preparation method thereof |
| CN107984602A (en) * | 2017-12-05 | 2018-05-04 | 凉山瑞京环保资源开发有限公司 | A kind of light lath releasing agent and preparation method thereof |
| CN108356953A (en) * | 2018-03-16 | 2018-08-03 | 广东始兴县华洲木业有限公司 | A kind of preparation method and applications for the releasing agent for preventing wood shavings Nian Jie with hot-die |
| CN108819052A (en) * | 2018-05-04 | 2018-11-16 | 苏州捷德瑞精密机械有限公司 | A kind of resin matrix system release agent and preparation method thereof |
| CN108949295A (en) * | 2018-07-13 | 2018-12-07 | 安徽思源三轻智能制造有限公司 | A kind of cement prefabricated product release agent and preparation method thereof |
| CN109851299A (en) * | 2019-03-18 | 2019-06-07 | 北京国旺混凝土有限公司 | A kind of impervious high-strength concrete and preparation method thereof |
-
1991
- 1991-11-01 CN CN 91108073 patent/CN1021031C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830032B (en) * | 2009-03-10 | 2013-07-17 | 刘新智 | Preparation method of concrete long-acting mould release agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1059683A (en) | 1992-03-25 |
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