CN108690483A - polyurethane water-proof paint and preparation method thereof - Google Patents
polyurethane water-proof paint and preparation method thereof Download PDFInfo
- Publication number
- CN108690483A CN108690483A CN201710105451.5A CN201710105451A CN108690483A CN 108690483 A CN108690483 A CN 108690483A CN 201710105451 A CN201710105451 A CN 201710105451A CN 108690483 A CN108690483 A CN 108690483A
- Authority
- CN
- China
- Prior art keywords
- polyether polyol
- functionality
- polyurethane water
- proof paint
- molecular weight
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
Abstract
The present invention relates to a kind of water-repellent paints, and in particular to a kind of polyurethane water-proof paint and preparation method thereof.It is made of following raw material:Polyether polyol A (molecular weight 1000-1500, degree of functionality 2), polyether polyol B (molecular weight 2000-2200, degree of functionality 3), polyether polyol C (molecular weight 2500-2700, degree of functionality 3), isocyanates (- NCO mass fractions are 5%), chlorinated paraffin, antifoaming agent, catalyst, talcum powder.Polyurethane water-proof paint of the present invention has tensile strength high, does solid work the advantages such as the time is short, and comprehensive performance is excellent, meets the requirement of Polyurethane Waterpoof Coating Used in Arthitect;The present invention also provides preparation methods, are easy to industrialized production.
Description
Technical field
The present invention relates to a kind of water-repellent paints, and in particular to a kind of polyurethane water-proof paint and preparation method thereof.
Background technology
With the high speed development of national economy, building engineering field is also flourishing, and how to carry out the anti-of every engineering
Water and corrosion resistant are engineering construction side's concerns the most.Early stage people asphalt felt, pitch make waterproof material, use this material
High energy consumption when material is not only constructed, environmental pollution is serious, poor adhesive force, and its weatherability is poor, and winter easily hardens and embrittlement, the summer
It is easy tacky fusing.Building surface is coated in using polyurethane water-proof paint now, can effectively stop the erosion of water, because
This is by high praise.But that there are intensity is not high, weatherability is bad, tensile strength is low for such polyurethane coating, does solid work time length etc.
Defect.
Invention content
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of polyurethane water-proof paints, have tensile strength
Height does solid work the advantages such as the time is short, and comprehensive performance is excellent, meets the requirement of Polyurethane Waterpoof Coating Used in Arthitect;The present invention also provides it
Preparation method is easy to industrialized production.
Polyurethane water-proof paint of the present invention, is prepared from the following raw materials in parts by weight:
The molecular weight of the polyether polyol A is 1000-1500, degree of functionality 2;
The molecular weight of the polyether polyol B is 2000-2200, degree of functionality 3;
The molecular weight of the polyether polyol C is 2500-2700, degree of functionality 3.
Wherein:Antifoaming agent is op-10.
The mass fraction of isocyanates influences the comprehensive performance of polyurethane water-proof paint, and the present invention selects isocyanates-NCO
Mass fraction is 5%, and tensile strength is high, does solid work that the time is short, and comprehensive performance is optimal.
Catalyst is stannous octoate.
Polyether polyol A, polyether polyol B, polyether polyol C are mixed, decompression dehydration, isocyanates is added and is warming up to
After 80-85 DEG C is reacted 2-3 hours, chlorinated paraffin, talcum powder, antifoaming agent is added in cooling, adds catalyst stirring to get production
Product.
In conclusion the present invention has the following advantages:
(1) polyurethane water-proof paint of the present invention has tensile strength high, does solid work that the time is short, and comprehensive performance is excellent excellent
Point meets the requirement of Polyurethane Waterpoof Coating Used in Arthitect;
(2) the present invention also provides preparation methods, are easy to industrialized production.
Specific implementation mode
With reference to embodiment, the present invention will be further described.
Embodiment 1
A kind of polyurethane water-proof paint, is prepared from the following raw materials in parts by weight:
The molecular weight of the polyether polyol A is 1000-1500, degree of functionality 2;
The molecular weight of the polyether polyol B is 2000-2200, degree of functionality 3;
The molecular weight of the polyether polyol C is 2500-2700, degree of functionality 3.
Preparation method:Polyether polyol A, polyether polyol B, polyether polyol C are mixed, isocyanide is added in decompression dehydration
Acid esters be warming up to 85 DEG C reaction 2.5 hours after, cooling, be added chlorinated paraffin, talcum powder, antifoaming agent, add catalyst stirring,
Up to product.
Embodiment 2
A kind of polyurethane water-proof paint, is prepared from the following raw materials in parts by weight:
The molecular weight of the polyether polyol A is 1000-1500, degree of functionality 2;
The molecular weight of the polyether polyol B is 2000-2200, degree of functionality 3;
The molecular weight of the polyether polyol C is 2500-2700, degree of functionality 3.
Preparation method:Polyether polyol A, polyether polyol B, polyether polyol C are mixed, isocyanide is added in decompression dehydration
Acid esters be warming up to 82 DEG C reaction 2 hours after, cooling, be added chlorinated paraffin, talcum powder, antifoaming agent, add catalyst stirring, i.e.,
Obtain product.
Claims (5)
1. a kind of polyurethane water-proof paint, it is characterised in that:It is prepared from the following raw materials in parts by weight:
The molecular weight of the polyether polyol A is 1000-1500, degree of functionality 2;
The molecular weight of the polyether polyol B is 2000-2200, degree of functionality 3;
The molecular weight of the polyether polyol C is 2500-2700, degree of functionality 3.
2. polyurethane water-proof paint according to claim 1, it is characterised in that:Antifoaming agent is op-10.
3. polyurethane water-proof paint according to claim 1, it is characterised in that:Isocyanates-NCO mass fractions are 5%.
4. polyurethane water-proof paint according to claim 1, it is characterised in that:Catalyst is stannous octoate.
5. a kind of preparation method of any polyurethane water-proof paints of claim 1-4, it is characterised in that:By polyether polyols
Alcohol A, polyether polyol B, polyether polyol C mixing, decompression dehydration, addition isocyanates are warming up to 80-85 DEG C and react 2-3 hours
Afterwards, cool down, chlorinated paraffin, talcum powder, antifoaming agent is added, add catalyst stirring to get product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105451.5A CN108690483A (en) | 2017-02-26 | 2017-02-26 | polyurethane water-proof paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105451.5A CN108690483A (en) | 2017-02-26 | 2017-02-26 | polyurethane water-proof paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108690483A true CN108690483A (en) | 2018-10-23 |
Family
ID=63841886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105451.5A Pending CN108690483A (en) | 2017-02-26 | 2017-02-26 | polyurethane water-proof paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108690483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876061A (en) * | 2020-07-31 | 2020-11-03 | 潍坊市璇宝防水材料有限公司 | High-performance polyurethane waterproof coating and preparation method thereof |
-
2017
- 2017-02-26 CN CN201710105451.5A patent/CN108690483A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876061A (en) * | 2020-07-31 | 2020-11-03 | 潍坊市璇宝防水材料有限公司 | High-performance polyurethane waterproof coating and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181023 |
|
| WD01 | Invention patent application deemed withdrawn after publication |