CN103013319A - Moisture-proof coating for polyurethane rigid foam and preparation method of moisture-proof coating - Google Patents
Moisture-proof coating for polyurethane rigid foam and preparation method of moisture-proof coating Download PDFInfo
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- CN103013319A CN103013319A CN2013100079790A CN201310007979A CN103013319A CN 103013319 A CN103013319 A CN 103013319A CN 2013100079790 A CN2013100079790 A CN 2013100079790A CN 201310007979 A CN201310007979 A CN 201310007979A CN 103013319 A CN103013319 A CN 103013319A
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- Prior art keywords
- moisture
- polyurethane
- proof coating
- proof
- formula ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 64
- 239000004814 polyurethane Substances 0.000 title claims abstract description 64
- 239000011248 coating agent Substances 0.000 title claims abstract description 55
- 238000000576 coating method Methods 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims description 19
- 239000006260 foam Substances 0.000 title abstract 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 27
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 27
- 239000003292 glue Substances 0.000 claims abstract description 20
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 12
- 210000003298 dental enamel Anatomy 0.000 claims description 21
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 19
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 9
- 238000001035 drying Methods 0.000 abstract description 7
- 239000004519 grease Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 7
- 239000004793 Polystyrene Substances 0.000 description 6
- 229920002223 polystyrene Polymers 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000010426 asphalt Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses moisture-proof coating for polyurethane rigid foam. The moisture-proof coating for polyurethane rigid foam comprises the following components in percentage by weight: 10%-20% of polyurethane prepolymer, 60%-78% of a curing agent, 10%-22% of wood glue powder, and 0.05%-1% of polyurethane color paste. The moisture-proof coating for polyurethane rigid foam has excellent hardness, smoothness, waterproofness and crack resistance. The moisture-proof coating is used for follow-up moisture-proof protection of a pipeline cold-insulation polyurethane rigid foam product; and the moisture-proof performance of the polyurethane foam is remarkably improved by coating the moisture-proof coating at the end surface of the polyurethane without affecting the cold-insulation polyurethane construction. Moreover, the moisture-proof coating is convenient to coat, and has a smooth and glory appearance. Compared with the matrix-grease moisture-proof layer in the market, the moisture-proof coating provided by the invention is convenient to coat, is high in drying speed and can improve the construction efficiency.
Description
Technical field:
The invention belongs to adiabatic hard polyurethane foam technical field of construction, be specifically related to a kind of cold insulation hard polyurethane foam moisture-proof coating and preparation method thereof.
Technical background:
Urethane is the polymkeric substance of being made by raw materials such as the chainextenders such as polyisocyanates and polyether glycol or polyester polyol or small molecules polyvalent alcohol, polyamine or water or linking agents.By feed change kind and composition, can change significantly product form and performance thereof, obtain from softness to hard the finished product.And hard polyurethane foams is widely used in many fields such as refrigerator manufacturing, petrochemical complex, mining machinery, aviation, medical treatment, agricultural.And the cold insulation when particularly refrigerator is made uses at most.
The emulsified bitumen that when the installation of cold insulation hard polyurethane foam, mostly uses at present, matizhi and glass-fiber-fabric are as damp proof material, but matizhi is coated with difficulty, and the glass-fiber-fabric price is high.In order to solve present present situation, the present invention is intended to study a kind of cheap and easy to use, the coating that moisture effect is good.
Summary of the invention:
The object of the present invention is to provide a kind of cold insulation hard polyurethane foam moisture-proof coating.This moisture-proof coating is used for the construction of pipeline cold insulation urethane.Can significantly improve on the basis that does not affect the construction of cold insulation urethane the humidity resistance of polyurethane foam by smear this moisture-proof coating at the urethane end face.This coating smear convenient and flat appearance glossy.
Another object of the present invention is to provide a kind of preparation method of moisture-proof coating.
Purpose of the present invention is achieved through the following technical solutions:
A kind of hard polyurethane foam moisture-proof coating, by the quality percentage composition, described moisture-proof coating comprises following component:
Base polyurethane prepolymer for use as 10% ~ 20%
Solidifying agent 60% ~ 78%
Ureaformal dehyde resin glue 10% ~ 22%
Each constituent mass percentage composition sum of colour polyurethane paste 0.05% ~ 1%(is 100%).
Preferably, above-mentioned moisture-proof coating comprises following component:
Base polyurethane prepolymer for use as 12% ~ 17%
Solidifying agent 65% ~ 72%
Ureaformal dehyde resin glue 13% ~ 20%
Colour polyurethane paste 0.05% ~ 0.5%.
Described base polyurethane prepolymer for use as is polyurethane enamels.
Described solidifying agent is polyurethane curing agent.
Above-mentioned hard polyurethane foam may further comprise the steps: 1) in the solidifying agent adding container with formula ratio with the preparation method of moisture-proof coating; 2) (stirring velocity is 200 ~ 1200r/min), slowly adds successively base polyurethane prepolymer for use as and the ureaformal dehyde resin glue of formula ratio under the whipped state; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 1 ~ 60 minute.
The constructional method of this moisture-proof coating: 1) with hairbrush the coating for preparing is taken a morsel and evenly be applied in the hard polyurethane foam end face that to smear.2) place drying and can carry out the construction of next step in about one hour.
Solidifying agent in the moisture-proof coating prescription of the present invention is preferably polyurethane curing agent, is used for improving moisture-proof coating hardness in prescription; Base polyurethane prepolymer for use as in the prescription adopts polyurethane enamels to work to improve the smooth finish of moisture-proof coating.The crosslinked action that polyurethane curing agent and polyurethane enamels produce in conjunction with afterreaction in prescription can increase water-repellancy and the splitting resistance of this moisture-proof coating.The moisture-proof coating of the present invention's preparation is convenient to smear than the matizhi moisture-proof barrier that uses on the market, and rate of drying can improve operating efficiency soon.
Beneficial effect of the present invention:
The use of polyurethane curing agent has improved moisture-proof coating hardness in the present invention's prescription; The use of polyurethane enamels has increased the smooth finish of moisture-proof coating, and the crosslinked action that polyurethane curing agent and polyurethane enamels produce in conjunction with afterreaction in prescription can increase water-repellancy and the splitting resistance of moisture-proof coating of the present invention, improves simultaneously the intensity of cold insulation material.The moisture-proof coating of the present invention's preparation is used for the construction of pipeline cold insulation urethane, can significantly improve on the basis that does not affect the construction of cold insulation urethane the humidity resistance of polyurethane foam by smear this moisture-proof coating at the urethane end face.And this moisture-proof coating is smeared conveniently, flat appearance is glossy.Be convenient to smear than the matizhi moisture-proof barrier that uses on the market, and rate of drying can improve operating efficiency soon.
Embodiment:
Use raw material:
Solidifying agent: polyurethane curing agent, radiance paint company limited provides for Changzhou
Base polyurethane prepolymer for use as: polyurethane enamels, radiance paint company limited provides for Changzhou
Ureaformal dehyde resin glue: the single component ureaformal dehyde resin glue, company limited provides for the precious building material of Hu Zhou Jing
Mill base: colour polyurethane paste, seven color painting Products Co., Ltd provide for Wenzhou
Embodiment 1:
A kind of hard polyurethane foam moisture-proof coating, the content of each component is:
Polyurethane enamels: 15%
Polyurethane curing agent: 68.4%
Single component ureaformal dehyde resin glue: 16.52%
Colour polyurethane paste: 0.08%
Preparation technology: 1) polyurethane curing agent with formula ratio adds in the container; 2) under the whipped state of 1200r/min, slowly add successively polyurethane enamels and the single component ureaformal dehyde resin glue of formula ratio; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 3 minutes.
Embodiment 2:
A kind of hard polyurethane foam moisture-proof coating, the content of each component is:
Polyurethane enamels: 12%
Polyurethane curing agent: 72%
Single component ureaformal dehyde resin glue: 15.9%
Colour polyurethane paste: 0.1%
Preparation technology: 1) polyurethane curing agent with formula ratio adds in the container; 2) under the whipped state of 1000r/min, slowly add successively polyurethane enamels and the single component ureaformal dehyde resin glue of formula ratio; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 3 minutes.
Embodiment 3:
A kind of hard polyurethane foam moisture-proof coating, the content of each component is:
Polyurethane enamels: 17%
Polyurethane curing agent: 65%
Single component ureaformal dehyde resin glue: 17.9%
Colour polyurethane paste: 0.1%
Preparation technology: 1) polyurethane curing agent with formula ratio adds in the container; 2) under the whipped state of 800r/min, slowly add successively polyurethane enamels and the single component ureaformal dehyde resin glue of formula ratio; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 3 minutes.
Embodiment 4:
A kind of hard polyurethane foam moisture-proof coating, the content of each component is:
Polyurethane enamels: 10%
Polyurethane curing agent: 76%
Single component ureaformal dehyde resin glue: 13.9%
Colour polyurethane paste: 0.1%
Preparation technology: 1) polyurethane curing agent with formula ratio adds in the container; 2) under the whipped state of 500r/min, slowly add successively polyurethane enamels and the single component ureaformal dehyde resin glue of formula ratio; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 6 minutes.
Embodiment 5:
A kind of hard polyurethane foam moisture-proof coating, the content of each component is:
Polyurethane enamels: 20%
Polyurethane curing agent: 62%
Single component ureaformal dehyde resin glue: 17.9%
Colour polyurethane paste: 0.1%
Preparation technology: 1) polyurethane curing agent with formula ratio adds in the container; 2) under the whipped state of 200r/min, slowly add successively polyurethane enamels and the single component ureaformal dehyde resin glue of formula ratio; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 10 minutes.
The constructional method of the moisture-proof coating of above-described embodiment preparation: 1) with hairbrush the coating for preparing is got an amount of hard polyurethane foam end face that need to smear that evenly is applied in.2) place drying and can carry out the construction of next step in about one hour.
The thickness that the moisture-proof coating that during use above embodiment is prepared spreads upon the hard polyurethane foam surface is 0.3 ~ 0.5mm.
The use result contrast of the moisture-proof coating of embodiment of the invention 1-5 preparation and existing damp proof material emulsified bitumen and polystyrene material sees Table 1, and polystyrene material directly overlays the hard polyurethane foam surface when using.Only using polyurethane enamels to be applied in the hard polyurethane foam end face does not have moisture-proof role, and its use the results are shown in Table 1.
Moisture-proof coating and emulsified bitumen moisture-proof barrier, polystyrene and the polyurethane enamels of table 1 embodiment 1-5 preparation use the result
| Smear the rear surface planeness | Time of drying, h(0.3mm was thick) | Surface luster | Peeling comes off after the drying | |
| Embodiment 1 | Smooth | 0.5 | Glossy | Come off without peeling |
| Embodiment 2 | Smooth | 0.5 | Glossy | Come off without peeling |
| Embodiment 3 | Smooth | 0.6 | Glossy | Come off without peeling |
| Embodiment 4 | Smooth | 0.5 | Glossy | Come off without peeling |
| Embodiment 5 | Smooth | 1 | Glossy | Come off without peeling |
| Emulsified bitumen | Coarse | 1.5 | Matt | There is peeling to come off |
| Polystyrene | Smooth | __ | __ | __ |
| Polyurethane enamels | Coarse | 2.5 | Glossy | There is peeling to come off |
The moisture-proof coating of embodiment of the invention 1-5 preparation and existing damp proof material protection against the tide matizhi, polystyrene to such as table 2.
Moisture-proof coating and the moistureproof matizhi service condition contrast table of table 2 embodiment 1-5 preparation
| Smearing thickness mm | Rate of perviousness Kp (g/m 2·pa·h) | Coefficient of vapor (g/mpah) | |
| Embodiment 1 | 0.3~0.5 | 1.08×10 -5 | 5.4×10 -9 |
| Embodiment 2 | 0.3~0.5 | 1.07×10 -5 | 5.4×10 -9 |
| Embodiment 3 | 0.3~0.5 | 1.06×10 -5 | 5.3×10 -9 |
| Embodiment 4 | 0.3~0.5 | 1.08×10 -5 | 5.4×10 -9 |
| Embodiment 5 | 0.3~0.5 | 1.08×10 -5 | 5.4×10 -9 |
| Bitumastic | 0.5 | 6.12×10 -5 | 3.06×10 -8 |
| Polystyrene | 0.5 | 4.69×10 -4 | 1.24×10 -5 |
| Polyurethane enamels | 0.3 | 3.5×10 -4 | 5×10 -5 |
Claims (6)
1. hard polyurethane foam moisture-proof coating is characterized in that by the quality percentage composition, described moisture-proof coating comprises following component:
Base polyurethane prepolymer for use as 10% ~ 20%
Solidifying agent 60% ~ 78%
Ureaformal dehyde resin glue 10% ~ 22%
Colour polyurethane paste 0.05% ~ 1%.
2. hard polyurethane foam moisture-proof coating according to claim 1 is characterized in that described moisture-proof coating comprises following component:
Base polyurethane prepolymer for use as 12% ~ 17%
Solidifying agent 65% ~ 72%
Ureaformal dehyde resin glue 13% ~ 20%
Colour polyurethane paste 0.05% ~ 0.5%.
3. hard polyurethane foam moisture-proof coating according to claim 1 and 2 is characterized in that described base polyurethane prepolymer for use as is polyurethane enamels.
4. hard polyurethane foam moisture-proof coating according to claim 1 and 2 is characterized in that described solidifying agent is polyurethane curing agent.
5. hard polyurethane foam moisture-proof coating according to claim 1 and 2 is characterized in that adopting the following methods preparation: 1) in the solidifying agent adding container with formula ratio; 2) under the whipped state, slowly add successively base polyurethane prepolymer for use as and the ureaformal dehyde resin glue of formula ratio; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 1 ~ 60 minute.
6. claim 1 or 2 described hard polyurethane foams is characterized in that may further comprise the steps: 1) in the solidifying agent adding container with formula ratio with the preparation method of moisture-proof coating; 2) under the whipped state, slowly add successively base polyurethane prepolymer for use as and the ureaformal dehyde resin glue of formula ratio; The colour polyurethane paste that adds at last formula ratio is kept and was stirred 1 ~ 60 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007979.0A CN103013319B (en) | 2013-01-09 | 2013-01-09 | Moisture-proof coating for polyurethane rigid foam and preparation method of moisture-proof coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007979.0A CN103013319B (en) | 2013-01-09 | 2013-01-09 | Moisture-proof coating for polyurethane rigid foam and preparation method of moisture-proof coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103013319A true CN103013319A (en) | 2013-04-03 |
| CN103013319B CN103013319B (en) | 2015-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310007979.0A Expired - Fee Related CN103013319B (en) | 2013-01-09 | 2013-01-09 | Moisture-proof coating for polyurethane rigid foam and preparation method of moisture-proof coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103013319B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087048A (en) * | 2014-07-29 | 2014-10-08 | 广西梧州龙鱼漆业有限公司 | Moisture-resistant paint |
| CN104153248A (en) * | 2014-07-29 | 2014-11-19 | 广西梧州龙鱼漆业有限公司 | Moisture-proof coating for paper products |
| CN107286773A (en) * | 2017-07-06 | 2017-10-24 | 张黎明 | Hypoxemia humidity water pump outer layer coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942542A (en) * | 2005-03-10 | 2007-04-04 | 德古萨公司 | Aqueous paint compositions for wood |
| CN102010654A (en) * | 2010-11-16 | 2011-04-13 | 北方涂料工业研究设计院 | Method for preparing environmental-friendly high-performance polyurethane waterproof paint |
| CN102417790A (en) * | 2011-08-11 | 2012-04-18 | 湖北蓝盾之星科技股份有限公司 | Bi-component castor oil polyurethane waterproof coating |
| CN102746783A (en) * | 2012-07-27 | 2012-10-24 | 新疆科能防水防护材料有限公司 | Bi-component color environment-friendly elastic polymer hydraulic protective coating |
-
2013
- 2013-01-09 CN CN201310007979.0A patent/CN103013319B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942542A (en) * | 2005-03-10 | 2007-04-04 | 德古萨公司 | Aqueous paint compositions for wood |
| CN102010654A (en) * | 2010-11-16 | 2011-04-13 | 北方涂料工业研究设计院 | Method for preparing environmental-friendly high-performance polyurethane waterproof paint |
| CN102417790A (en) * | 2011-08-11 | 2012-04-18 | 湖北蓝盾之星科技股份有限公司 | Bi-component castor oil polyurethane waterproof coating |
| CN102746783A (en) * | 2012-07-27 | 2012-10-24 | 新疆科能防水防护材料有限公司 | Bi-component color environment-friendly elastic polymer hydraulic protective coating |
Non-Patent Citations (2)
| Title |
|---|
| 朱永斌等: "环保型彩色聚氨酯防水涂料的研制", 《新疆农业大学学报》 * |
| 谭守清等: "彩色聚氨酯防水涂料的研制", 《山东化工》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087048A (en) * | 2014-07-29 | 2014-10-08 | 广西梧州龙鱼漆业有限公司 | Moisture-resistant paint |
| CN104153248A (en) * | 2014-07-29 | 2014-11-19 | 广西梧州龙鱼漆业有限公司 | Moisture-proof coating for paper products |
| CN107286773A (en) * | 2017-07-06 | 2017-10-24 | 张黎明 | Hypoxemia humidity water pump outer layer coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103013319B (en) | 2015-05-13 |
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Granted publication date: 20150513 Termination date: 20180109 |