CN104531309A - Waterborne polyurethane concrete de-molding agent and preparation method thereof - Google Patents
Waterborne polyurethane concrete de-molding agent and preparation method thereof Download PDFInfo
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- CN104531309A CN104531309A CN201410786287.5A CN201410786287A CN104531309A CN 104531309 A CN104531309 A CN 104531309A CN 201410786287 A CN201410786287 A CN 201410786287A CN 104531309 A CN104531309 A CN 104531309A
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Abstract
The invention discloses a waterborne polyurethane concrete de-molding agent and a preparation method thereof. The waterborne polyurethane concrete de-molding agent is prepared from the following raw materials in parts by weight: 28-30 parts of waterborne polyurethane, 15-20 parts of cinnamon oil, 0.2-0.3 part of dibutyl phthalate, 0.5-1.0 part of sodium persulfate, 1-3 parts of citric acid, 4-5 parts of modified paraffin emulsion, 0.5-0.6 part of potassium nitrate, 4-5 parts of calcium carbonate slurry, 0.8-1.0 part of sodium metaphosphate, 0.2-0.4 part of nonylphenol polyoxyethylene ether, 0.1-0.3 part of manganese acetate and 280-300 parts of deionized water. The waterborne polyurethane concrete de-molding agent prepared by taking the waterborne polyurethane as the main material and cooperating with modified paraffin emulsion has the characteristics of being wear-resisting, corrosion-resistant, bright and waterproof; moreover, the waterborne polyurethane concrete de-molding agent is simple in preparation process, stable in quality, and convenient for large-scale production, and can be used for remarkably improving the adhesion fastness of the de-molding agent.
Description
Technical field
The invention provides a kind of concrete parting agent, particularly a kind of watersoluble polyurethane concrete releasing agent and preparation method thereof.
Background technology
Concrete parting agent is also known as concrete isolation agent or demoulding lubricant; Be one be applied to template inwall rise lubrication and buffer action, make concrete can depart from template smoothly when form removal, keep the intact material of concrete shape, traditional release materials adds diesel oil with machine oil or used oil, find in the engineering constructions such as long-term water conservancy and hydropower, highway, railway, use used oil brushing template, concrete surface is produced and pollutes, pollution in various degree is also caused to environment simultaneously; But existing releasing agent exist stripping result not good, be difficult to remove in template, and ineffective to template maintenance, operating efficiency etc. is affected also increases construction cost.
Summary of the invention
The object of the present invention is to provide a kind of watersoluble polyurethane concrete releasing agent and preparation method thereof.
The present invention adopts following technical scheme to achieve these goals:
Watersoluble polyurethane concrete releasing agent, the weight part of its constitutive material is: aqueous polyurethane 28-30, Oleum Cinnamomi 15-20, dibutyl phthalate 0.2-0.3, Sodium Persulfate 0.5-1.0, citric acid 1-3, modified paraffin emulsion 4-5, saltpetre 0.5-0.6, calcium carbonate serosity 4-5, sodium-metaphosphate 0.8-1.0, polyoxyethylene nonylphenol ether 0.2-0.4, manganese acetate 0.1-0.3 and deionized water 280-300;
The preparation of modified paraffin emulsion: first paraffin wax emulsions is heated to 50-60 DEG C; Then the 3.5-4.0% ferrous sulfate of paraffin wax emulsions quality, 8-10% carbon fiber, 10-15% bamboo fibers is added wherein; Be uniformly mixed and place 2-3 hour, and then add the potassium humate powder of paraffin wax emulsions 4-5%, be warming up to uniform stirring 1-2 hour under the condition of 80-90 DEG C, naturally cool to room temperature, regulator solution pH value is to 2-3; Again with deionized water in mass ratio 1:5 mix, stir 30-40 minute, centrifugation obtains filtrate.
Watersoluble polyurethane concrete releasing agent, the weight part of its constitutive material is: aqueous polyurethane 30, Oleum Cinnamomi 18, dibutyl phthalate 0.2, Sodium Persulfate 0.8, citric acid 2, modified paraffin emulsion 4.5, saltpetre 0.5, calcium carbonate serosity 4.5, sodium-metaphosphate 0.9, polyoxyethylene nonylphenol ether 0.3, manganese acetate 0.2 and deionized water 280.
The preparation method of watersoluble polyurethane concrete releasing agent, comprises following content: take each raw material by the weight part of constitutive material, first adds in reactor by aqueous polyurethane, modified paraffin emulsion, Oleum Cinnamomi, calcium carbonate serosity, be heated to 80-90 DEG C, be uniformly mixed 2-3 hour, then slowly add deionized water, constantly stir in adition process, after the entry to be completely, add other residue constitutive material again, be warming up to 120-130 DEG C, stirring and emulsifying 2-4 hour, discharging, can obtain.
Beneficial effect of the present invention:
Of the present invention take aqueous polyurethane as major ingredient, and coordinate modified paraffin emulsion, the aqueous polyurethane releasing agent made has wear-resisting, corrosion-resistant and bright, water tolerance; And manufacture craft of the present invention is simple, steady quality, can significantly improve the attachment fastness of releasing agent, is convenient to batch production.
Embodiment
Embodiment 1: watersoluble polyurethane concrete releasing agent, the weight part (kg) of its constitutive material is: aqueous polyurethane 30, Oleum Cinnamomi 18, dibutyl phthalate 0.2, Sodium Persulfate 0.8, citric acid 2, modified paraffin emulsion 4.5, saltpetre 0.5, calcium carbonate serosity 4.5, sodium-metaphosphate 0.9, polyoxyethylene nonylphenol ether 0.3, manganese acetate 0.2 and deionized water 280.
The preparation method of watersoluble polyurethane concrete releasing agent, comprises following content:
Each raw material is taken by the weight part of constitutive material, first aqueous polyurethane, modified paraffin emulsion, Oleum Cinnamomi, calcium carbonate serosity are added in reactor, be heated to 85 DEG C, be uniformly mixed 2-3 hour, then slowly deionized water is added, constantly stir in adition process, after the entry to be completely, then add other residue constitutive material, be warming up to 125 DEG C, stirring and emulsifying 3 hours, discharging, can obtain.
The preparation of described modified paraffin emulsion: first paraffin wax emulsions is heated to 55 DEG C; Then 3.8% ferrous sulfate of paraffin wax emulsions quality, 8% carbon fiber, 12% bamboo fibers is added wherein; Be uniformly mixed and place 2-3 hour, and then add the potassium humate powder of paraffin wax emulsions 4.5%, be warming up to uniform stirring 1-2 hour under the condition of 85 DEG C, naturally cool to room temperature, regulator solution pH value is to 2-3; Again with deionized water in mass ratio 1:5 mix, stir 35 minutes, centrifugation obtains filtrate.
Above-mentioned obtained concrete parting agent solid content≤2.8%; There is well wear-resisting, corrosion-resistant and bright, water tolerance performance, dry film time 32-37min of the present invention; Meet the service requirements of concrete parting agent.
Claims (3)
1. a watersoluble polyurethane concrete releasing agent, is characterized in that the weight part of its constitutive material is: aqueous polyurethane 28-30, Oleum Cinnamomi 15-20, dibutyl phthalate 0.2-0.3, Sodium Persulfate 0.5-1.0, citric acid 1-3, modified paraffin emulsion 4-5, saltpetre 0.5-0.6, calcium carbonate serosity 4-5, sodium-metaphosphate 0.8-1.0, polyoxyethylene nonylphenol ether 0.2-0.4, manganese acetate 0.1-0.3 and deionized water 280-300;
The preparation of modified paraffin emulsion: first paraffin wax emulsions is heated to 50-60 DEG C; Then the 3.5-4.0% ferrous sulfate of paraffin wax emulsions quality, 8-10% carbon fiber, 10-15% bamboo fibers is added wherein; Be uniformly mixed and place 2-3 hour, and then add the potassium humate powder of paraffin wax emulsions 4-5%, be warming up to uniform stirring 1-2 hour under the condition of 80-90 DEG C, naturally cool to room temperature, regulator solution pH value is to 2-3; Again with deionized water in mass ratio 1:5 mix, stir 30-40 minute, centrifugation obtains filtrate.
2. watersoluble polyurethane concrete releasing agent according to claim 1, is characterized in that the weight part of its constitutive material is: aqueous polyurethane 30, Oleum Cinnamomi 18, dibutyl phthalate 0.2, Sodium Persulfate 0.8, citric acid 2, modified paraffin emulsion 4.5, saltpetre 0.5, calcium carbonate serosity 4.5, sodium-metaphosphate 0.9, polyoxyethylene nonylphenol ether 0.3, manganese acetate 0.2 and deionized water 280.
3. the preparation method of a watersoluble polyurethane concrete releasing agent as claimed in claim 1, it is characterized in that comprising following content: take each raw material by the weight part of constitutive material, first aqueous polyurethane, modified paraffin emulsion, Oleum Cinnamomi, calcium carbonate serosity are added in reactor, be heated to 80-90 DEG C, be uniformly mixed 2-3 hour, then slowly deionized water is added, constantly stir in adition process, after the entry to be completely, add other residue constitutive material again, be warming up to 120-130 DEG C, stirring and emulsifying 2-4 hour, discharging, can obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786287.5A CN104531309A (en) | 2014-12-18 | 2014-12-18 | Waterborne polyurethane concrete de-molding agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410786287.5A CN104531309A (en) | 2014-12-18 | 2014-12-18 | Waterborne polyurethane concrete de-molding agent and preparation method thereof |
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| CN104531309A true CN104531309A (en) | 2015-04-22 |
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| CN201410786287.5A Pending CN104531309A (en) | 2014-12-18 | 2014-12-18 | Waterborne polyurethane concrete de-molding agent and preparation method thereof |
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| CN104164293A (en) * | 2014-07-30 | 2014-11-26 | 宁国市冠宇模具有限公司 | Green environment-friendly water-base mold release agent |
| CN104194903A (en) * | 2014-07-31 | 2014-12-10 | 寿县维东建材商贸有限公司 | Anticorrosive concrete release agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1575330A (en) * | 2001-10-26 | 2005-02-02 | 日清奥利友株式会社 | Water-soluble lubricating oil |
| CN102326597A (en) * | 2011-10-31 | 2012-01-25 | 河南工业大学 | Method for preparing oil/water (O/W) type special mould release agent for baking by using palm liquid oil |
| CN103320207A (en) * | 2013-06-27 | 2013-09-25 | 海安山河建材有限公司 | Method for preparing novel concrete component release agent |
| CN103484209A (en) * | 2013-08-19 | 2014-01-01 | 蚌埠市英路光电有限公司 | Lubricating rust-proof oil |
| CN103467699A (en) * | 2013-08-30 | 2013-12-25 | 广州机械科学研究院有限公司 | Water soluble polyurethane lubricant, as well as preparation method and application thereof |
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| CN103666739A (en) * | 2013-12-21 | 2014-03-26 | 栾晓健 | Concrete mold release agent |
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Application publication date: 20150422 |
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