CN107022057A - A kind of dry vegetable oil modified aqueous polyurethane and its preparation method and application - Google Patents
A kind of dry vegetable oil modified aqueous polyurethane and its preparation method and application Download PDFInfo
- Publication number
- CN107022057A CN107022057A CN201710114559.0A CN201710114559A CN107022057A CN 107022057 A CN107022057 A CN 107022057A CN 201710114559 A CN201710114559 A CN 201710114559A CN 107022057 A CN107022057 A CN 107022057A
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- Prior art keywords
- vegetable oil
- dry vegetable
- aqueous polyurethane
- modified aqueous
- alcoholysis
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- 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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to chemical field, a kind of dry vegetable oil modified aqueous polyurethane and its preparation method and application is disclosed.The dry vegetable oil modified aqueous polyurethane is that, by the alcoholysis dry vegetable oil that mass fraction is 54%, mass fraction is 35% IPDI, and mass fraction is prepared from for 11% dimethylolpropionic acid.The trimethylolpropane that the dry vegetable oil and mass fraction that the alcoholysis dry vegetable oil is 87% by mass fraction are 13% is prepared from.Gained dry vegetable oil modified aqueous polyurethane has splendid water-fast effect, can be applied to timber or metal surface is covered with paint, lacquer, colour wash, etc..
Description
Technical field
The invention belongs to chemical field, more particularly to a kind of dry vegetable oil modified aqueous polyurethane and its preparation side
Method and application.
Background technology
Aqueous polyurethane has been widely applied in paint field, in the prior art, usually used to contain polyethers or carboxylic
The polyalcohol of base and polyisocyanates pre-polymerization, are then dispersed in water, then carry out chain extension with diamine, obtain the scattered poly- ammonia of moisture
Ester emulsion.It is a large amount of in whole course of reaction to use organic solvent and hydrophilic monomer, a large amount of dissolvent residuals of final products are caused, and it is resistance to
It is aqueous not good.Addition vegetable oil, which is modified, can improve water resistance, but generally require to carry out complicated reaction, first prepare alcohol
Acid resin or the oils using hydroxyl, then add isocyanates and are modified, the middle increase along with viscosity needs not
Stop supplement organic solvent to be diluted；Simultaneously as introducing excessive component, being greatly lowered for content of vegetable oil is caused,
It is difficult to the film for being cross-linked to form densification, improves limited to improving paint film property.
The content of the invention
In order to overcome shortcoming and defect part of the prior art, primary and foremost purpose of the invention is that providing a kind of dryness plants
Thing oil modified aqueous polyurethane.
It is still another object of the present invention to provide a kind of preparation method of above-mentioned dry vegetable oil modified aqueous polyurethane.Should
Method introduces isocyano in dry vegetable oil molecule first, then introduces carboxyl by chain extension, and amine is i.e. dispersible after neutralizing
Without using a large amount of solvents in Yu Shuizhong, course of reaction, and obtained product content of vegetable oil is higher, is formed after film forming on surface
Fine and close oxidation cross-linked layer, with splendid water-fast weather resistance.
A further object of the present invention is to provide a kind of application of above-mentioned dry vegetable oil modified aqueous polyurethane.
The object of the invention is achieved through the following technical solutions：
A kind of dry vegetable oil modified aqueous polyurethane, the dry vegetable oil modified aqueous polyurethane is to be by mass fraction
54% alcoholysis dry vegetable oil, mass fraction is 35% IPDI, and mass fraction is 11% dihydroxy
Methylbutanoic acid is prepared from.
Three hydroxyls that the dry vegetable oil and mass fraction that the alcoholysis dry vegetable oil is 87% by mass fraction are 13%
Methylpropane is prepared from.
The dry vegetable oil is one or more of linseed oil, dehydrated castor oil and tung oil.
The alcoholysis dry vegetable oil is prepared according to following steps：A, the addition dryness plant in four-hole boiling flask
Oil, is warming up to 90 DEG C and vacuumizes 1 hour, and filled with nitrogen；B, addition trimethylolpropane and lithium hydroxide catalyst, heating
To 260 DEG C, react 3 hours, cooling discharge produces alcoholysis dry vegetable oil.The consumption of the lithium hydroxide catalyst is that dryness is planted
The 1 ‰ of thing oil and trimethylolpropane gross mass.
The preparation method of above-mentioned dry vegetable oil modified aqueous polyurethane, according to following operating procedure：A, in four-hole boiling flask
Middle addition alcoholysis dry vegetable oil, 60 DEG C vacuumize 1 hour, and are filled with nitrogen；B, addition IPDI, rise
Warm to 80 DEG C are reacted 4 hours；C, addition dimethylolpropionic acid, are warming up to 90 DEG C and react 4 hours；D, it is cooled to 50 DEG C, adds three
Ethamine is neutralized to pH=8~9, is diluted with water to 50% solid content, produces dry vegetable oil modified aqueous polyurethane.
Above-mentioned dry vegetable oil modified aqueous polyurethane has splendid water-fast effect, can be applied to timber or metal watch
Cover with paint, lacquer, colour wash, etc. in face.
The present invention has the following advantages and effect relative to prior art：
Compared with prior art, the preparation technology of dry vegetable oil modified aqueous polyurethane proposed by the present invention is simple, several
It is harmless to health and environment without using solvent, and oil content is higher, has splendid water resistance after drying.
Specific implementation method
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment 1
The preparation of alcoholysis dry vegetable oil
I adds linseed oil 1200g in four-hole boiling flask, is warming up to 90 DEG C and vacuumizes 1 hour, and is filled with nitrogen；B is added
Trimethylolpropane 180g, lithium hydroxide 1.4g, are warming up to 260 DEG C, react 3 hours, cooling discharge obtains alcoholysis dryness plant
Oil, is designated as O-1.
II adds linseed oil 600g, dehydrated castor oil 600g in four-hole boiling flask, is warming up to 90 DEG C and vacuumizes 1 hour, and
Filled with nitrogen；B adds trimethylolpropane 180g, lithium hydroxide 1.4g, is warming up to 260 DEG C, reacts 3 hours, cooling discharge
Alcoholysis dry vegetable oil is obtained, O-2 is designated as.
III adds linseed oil 300g, tung oil 300g, dehydrated castor oil 600g in four-hole boiling flask, is warming up to 90 DEG C and vacuumizes
1 hour, and filled with nitrogen；B adds trimethylolpropane 180g, lithium hydroxide 1.4g, is warming up to 260 DEG C, reacts 3 hours,
Cooling discharge obtains alcoholysis dry vegetable oil, is designated as O-3.
IV adds tung oil 600g, dehydrated castor oil 600g in four-hole boiling flask, is warming up to 90 DEG C and vacuumizes 1 hour, is used in combination
Nitrogen is filled；B adds trimethylolpropane 180g, lithium hydroxide 1.4g, is warming up to 260 DEG C, reacts 3 hours, cooling discharge is obtained
To alcoholysis dry vegetable oil, O-4 is designated as.
Embodiment 2
The preparation of alcoholysis dry vegetable oil modified aqueous polyurethane
I adds alcoholysis dry vegetable oil O-1 300g prepared by embodiment 1 in four-hole boiling flask, and 60 DEG C vacuumize 1 hour,
And filled with nitrogen, IPDI 194g is added, 80 DEG C is warming up to and reacts 4 hours, add dimethylolpropionic acid
60g, is warming up to 90 DEG C and reacts 4 hours；50 DEG C are cooled to, triethylamine is added and is neutralized to pH=8~9,50% is diluted with water to and consolidates
Content produces dry vegetable oil modified aqueous polyurethane.Product is sprayed in tinplate sheet, be completely dried it is rear soaked, 1 month
Show no obvious abnormalities, show that prepared dry vegetable oil modified aqueous polyurethane has splendid water resistance.
II adds alcoholysis dry vegetable oil O-2 300g prepared by embodiment 1 in four-hole boiling flask, and 60 DEG C to vacuumize 1 small
When, and filled with nitrogen, IPDI 194g is added, 80 DEG C is warming up to and reacts 4 hours, add dihydroxymethyl fourth
Sour 60g, is warming up to 90 DEG C and reacts 4 hours；50 DEG C are cooled to, triethylamine is added and is neutralized to pH=8~9, be diluted with water to 50%
Solid content produces dry vegetable oil modified aqueous polyurethane.Product is sprayed in tinplate sheet, be completely dried it is rear soaked, 1
The moon is shown no obvious abnormalities, and shows that prepared dry vegetable oil modified aqueous polyurethane has splendid water resistance.
III adds alcoholysis dry vegetable oil O-3 300g prepared by embodiment 1 in four-hole boiling flask, and 60 DEG C to vacuumize 1 small
When, and filled with nitrogen, IPDI 194g is added, 80 DEG C is warming up to and reacts 4 hours, add dihydroxymethyl fourth
Sour 60g, is warming up to 90 DEG C and reacts 4 hours；50 DEG C are cooled to, triethylamine is added and is neutralized to pH=8~9, be diluted with water to 50%
Solid content produces dry vegetable oil modified aqueous polyurethane.Product is sprayed in tinplate sheet, be completely dried it is rear soaked, 1
The moon is shown no obvious abnormalities, and shows that prepared dry vegetable oil modified aqueous polyurethane has splendid water resistance.
IV adds the alcoholysis dry vegetable oil O-4 300g of the preparation of embodiment 1 in four-hole boiling flask, and 60 DEG C to vacuumize 1 small
When, and filled with nitrogen, IPDI 194g is added, 80 DEG C is warming up to and reacts 4 hours, add dihydroxymethyl fourth
Sour 60g, is warming up to 90 DEG C and reacts 4 hours；50 DEG C are cooled to, triethylamine is added and is neutralized to pH=8~9, be diluted with water to 50%
Solid content produces dry vegetable oil modified aqueous polyurethane.Product is sprayed on solid wood board, be completely dried it is rear soaked, 1 month
Show no obvious abnormalities, show that prepared dry vegetable oil modified aqueous polyurethane has splendid water resistance.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (7)
1. a kind of dry vegetable oil modified aqueous polyurethane, it is characterised in that：The dry vegetable oil modified aqueous polyurethane be by
Mass fraction is 54% alcoholysis dry vegetable oil, and mass fraction is 35% IPDI, and mass fraction is
11% dimethylolpropionic acid is prepared from.
2. a kind of dry vegetable oil modified aqueous polyurethane according to claim 1, it is characterised in that：The alcoholysis dryness
The trimethylolpropane that the dry vegetable oil and mass fraction that vegetable oil is 87% by mass fraction are 13% is prepared from.
3. a kind of dry vegetable oil modified aqueous polyurethane according to claim 2, it is characterised in that：The dryness plant
Oil is one or more of linseed oil, dehydrated castor oil and tung oil.
4. a kind of dry vegetable oil modified aqueous polyurethane according to claim 2, it is characterised in that：The alcoholysis dryness
Vegetable oil is prepared according to following steps：A, dry vegetable oil is added in four-hole boiling flask, being warming up to 90 DEG C, to vacuumize 1 small
When, and filled with nitrogen；B, addition trimethylolpropane and lithium hydroxide catalyst, are warming up to 260 DEG C, react 3 hours, cooling
Discharging produces alcoholysis dry vegetable oil.
5. a kind of dry vegetable oil modified aqueous polyurethane according to claim 4, it is characterised in that：The lithium hydroxide
The consumption of catalyst is the 1 ‰ of dry vegetable oil and trimethylolpropane gross mass.
6. the preparation method of a kind of dry vegetable oil modified aqueous polyurethane according to claim 1, it is characterised in that press
According to following operating procedure：A, the addition alcoholysis dry vegetable oil in four-hole boiling flask, 60 DEG C vacuumize 1 hour, and are filled with nitrogen；
B, addition IPDI, are warming up to 80 DEG C and react 4 hours；C, addition dimethylolpropionic acid, are warming up to 90 DEG C instead
Answer 4 hours；D, it is cooled to 50 DEG C, adds triethylamine and be neutralized to pH=8~9, be diluted with water to 50% solid content, produce dryness plant
Thing oil modified aqueous polyurethane.
7. a kind of dry vegetable oil modified aqueous polyurethane according to claim 1 is in timber or metal surface are covered with paint, lacquer, colour wash, etc.
Using.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710114559.0A CN107022057A (en) | 2017-02-28 | 2017-02-28 | A kind of dry vegetable oil modified aqueous polyurethane and its preparation method and application |
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| CN201710114559.0A CN107022057A (en) | 2017-02-28 | 2017-02-28 | A kind of dry vegetable oil modified aqueous polyurethane and its preparation method and application |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148171A (en) * | 2017-12-11 | 2018-06-12 | 湖北大学 | A kind of hydrolysis-resistant waterborne polyurethane dispersion and preparation method thereof |
| CN108467467A (en) * | 2018-05-02 | 2018-08-31 | 江苏维特金属防腐科技有限公司 | Plant oil base Anionic Water-borne Polyurethane Emulsion and its preparation method and application |
| CN109942777A (en) * | 2019-03-28 | 2019-06-28 | 安徽名士达新材料有限公司 | A kind of development and application of aqueous wood oil |
| CN110776814A (en) * | 2019-10-23 | 2020-02-11 | 河南晖睿智能科技有限公司 | Environment-friendly building material and preparation method thereof |
| CN111620994A (en) * | 2020-06-01 | 2020-09-04 | 运研材料科技（上海）有限公司 | Epoxy resin modified aqueous polyurethane oil dispersion and preparation method and application thereof |
| CN116200073A (en) * | 2023-03-10 | 2023-06-02 | 广州市哲铭油墨涂料有限公司 | Water-based ink with quick-drying function and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148171A (en) * | 2017-12-11 | 2018-06-12 | 湖北大学 | A kind of hydrolysis-resistant waterborne polyurethane dispersion and preparation method thereof |
| CN108148171B (en) * | 2017-12-11 | 2020-10-30 | 湖北大学 | Hydrolysis-resistant aqueous polyurethane dispersion and preparation method thereof |
| CN108467467A (en) * | 2018-05-02 | 2018-08-31 | 江苏维特金属防腐科技有限公司 | Plant oil base Anionic Water-borne Polyurethane Emulsion and its preparation method and application |
| CN108467467B (en) * | 2018-05-02 | 2020-06-30 | 江苏维特金属防腐科技有限公司 | Vegetable oil-based anionic waterborne polyurethane emulsion and preparation method and application thereof |
| CN109942777A (en) * | 2019-03-28 | 2019-06-28 | 安徽名士达新材料有限公司 | A kind of development and application of aqueous wood oil |
| CN110776814A (en) * | 2019-10-23 | 2020-02-11 | 河南晖睿智能科技有限公司 | Environment-friendly building material and preparation method thereof |
| CN111620994A (en) * | 2020-06-01 | 2020-09-04 | 运研材料科技（上海）有限公司 | Epoxy resin modified aqueous polyurethane oil dispersion and preparation method and application thereof |
| CN116200073A (en) * | 2023-03-10 | 2023-06-02 | 广州市哲铭油墨涂料有限公司 | Water-based ink with quick-drying function and preparation method thereof |
| CN116200073B (en) * | 2023-03-10 | 2023-10-13 | 广州市哲铭油墨涂料有限公司 | Water-based ink with quick-drying function and preparation method thereof |
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Application publication date: 20170808 |