CN109370413A - A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer and preparation method thereof - Google Patents
A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer and preparation method thereof Download PDFInfo
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- CN109370413A CN109370413A CN201811396486.XA CN201811396486A CN109370413A CN 109370413 A CN109370413 A CN 109370413A CN 201811396486 A CN201811396486 A CN 201811396486A CN 109370413 A CN109370413 A CN 109370413A
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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
- C08G18/28—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
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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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/68—Unsaturated polyesters
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- 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)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention provides a kind of quick-drying high rigidity bi-component polyurethane ester wood lacquers, including host agent and curing agent, according to parts by weight, the host agent includes following raw material components: 50-80 parts of short oil alkyd resin, 2-15 parts of polyether polyol, 0.2-15 parts of auxiliary agent, 1-15 parts of butyl acetate, 0.1-3 parts of vinyl resins, 0.5-20 parts of propylene glycol methyl ether acetate；According to parts by weight, the curing agent includes following raw material components: 1.0-20.0 parts of butyl acetate, 1.0-20.0 parts of toluene di-isocyanate(TDI) addition product, 50.0-80.0 parts of toluene diisocyanate trimer, 2.0-15.0 parts of hexamethylene diisocyanate trimer.Two component polyurethane woodwork coating of the invention makes full use of the complementary advantage of storeroom, has the characteristics that drying speed, the problem of coating process-cycle is greatly shortened, and the winter of low temp area is especially prominent, can improve slow conventional bicomponent polyurethane paint drying time, inefficiency.
Description
Technical field
The invention belongs to paint fields, and in particular to a kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer and its preparation side
Method.
Background technique
Bicomponent polyurethane coating is usually to be made of isocyanate prepolymer and hydroxy-containing resin two parts, is generally divided into
Curing agent component and host agent component, according to the difference of hydroxy-containing component, this kind of coating can be divided into the poly- ammonia of acroleic acid polyurethane, alkyd
The kinds such as ester, polyester-polyurethane, polyether-polyurethane, epoxy polyurethane.The bi-component woodwork coating master that existing market largely uses
It to be alcohol acid and polyurethane, host agent is mainly short oil alkyd resin, and the common material of curing agent is TDI (toluene di-isocyanate(TDI)) three
Aggressiveness and TDI addition product.Conventional bicomponent woodwork coating slow drying speed, the coating process-cycle is long, and the winter of low temp area is outstanding
To be obvious, while film crosslink density is low, and hardness is low, and anti-sag resistance is poor, and gloss stability is poor.Solidify TDI trimerization in agent material
Series product drying is fast, and hardness of paint film is high, and photoextinction is substantially better than TDI addition product, is greatly improved the dry speed of film
Degree.But the glass transition temperature of TDI trimer curing agent is relatively high, such as increases substantially TDI tripolymer dosage adding proportion, takes
It is excessively crisp to will appear flexibility bad paint film when with conventional woodwork coating short oil alkyd resin host agent, influences adhesive force, impact resistance,
The paint solution up time is short simultaneously, and application property is bad, and general TDI tripolymer dosage is below the 40% of curing agent weight.It is another
Aspect, polyether polyol are largely used to polyurethane foam plastics, and the purposes in coating is then relatively limited, because its film is shown
High moisture permeability, poor outdoor durable and as caused by the low Tg of polyethers it is soft.
Summary of the invention
In view of the problems of the existing technology, it is poly- that one of the objects of the present invention is to provide a kind of quick-drying high rigidity bi-components
Urethane woodcare paint.It is a further object of the present invention to provide the preparation methods of quick-drying high rigidity bi-component polyurethane ester wood lacquer.
Quick-drying high rigidity bi-component polyurethane ester wood lacquer of the invention, is achieved through the following technical solutions:
A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer, including host agent and curing agent,
According to parts by weight, the host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
Preferably, the quick-drying high rigidity bi-component polyurethane ester wood lacquer, including host agent and curing agent,
According to parts by weight, the host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
Further, the auxiliary agent include dispersing agent, anti-settling agent, hand feeling agent, delustering agent, levelling agent, in defoaming agent extremely
Few one kind.
It is further preferred that according to parts by weight, the auxiliary agent includes following components:
Further, the short oil alkyd resin is DSM N. V. Novalkyd 3800X60C fatty acid alkyd resin molecule
Amount 4000 ± 200, resin molecular weight distribution is narrow, is substantially free of small molecule compound, hydroxyl value (solid) 150mgKOH/g, Gu
Content 60%, can make that paint vehicle brushability is good, flexibility is good, color inhibition, up time are long；The polyether polyol trade mark is
N-330 is produced by Fangda Jinhua Chemical Technology Co., Ltd., molecular weight 3000 ± 200, viscosity (mPa.s) 500 ± 75,
Hydroxyl value 100-120mgKOH/g, such as 110mgKOH/g can increase substantially paint film flexibility.
Further, the vinyl resins is ternary chlorine vinegar.
Further, the isocyanate group content of the toluene di-isocyanate(TDI) addition product is 10-15%；Toluene diisocynate
The isocyanate group content of ester tripolymer is 5-10%；The isocyanate group content of hexamethylene diisocyanate trimer is 15-
25%.Specifically, the toluene di-isocyanate(TDI) addition product is that Coase creates company De Shimo all L75, and 75% in ethyl acetate,
Isocyanate group content 13.3 ± 0.4%；Toluene diisocyanate trimer be Coase create company De Shimo all IL1351,51% in
In butyl acetate, isocyanate group content 8.0 ± 0.3%；Hexamethylene diisocyanate trimer is that Coase creates company De Shimo
N3390BA, about 90% in n-butyl acetate, isocyanate group content 19.5 ± 0.3%.
Further, the dispersing agent is Bi Ke chemical company BYK-163 dispersing agent；The defoaming agent is that Bi Ke chemistry is public
Take charge of BYK-141 defoaming agent；The levelling agent is Bi Ke chemical company BYK-310 levelling agent.
Further, the anti-settling agent is the HX-8800 anti-settling agent of company of China；The hand feeling agent is Lubrizol Corp.
1778 hand feeling agents；The delustering agent is the ED-2 delustering agent of W. R. Grace & Co.
A kind of preparation method of quick-drying high rigidity bi-component polyurethane ester wood lacquer, comprising the following steps:
(1) it prepares the host agent: according to the ingredient in host agent, short oil alkyd resin, polyether polyol, auxiliary agent being added to
In dispersion cylinder, it is dispersed to fineness and is no more than 25 μm, the butyl acetate being then added, vinyl resins, propylene glycol methyl ether acetate；
(2) it prepares the curing agent: according to the ingredient in curing agent, butyl acetate being added in dispersion cylinder, first is added
Phenylene diisocyanate addition product, toluene diisocyanate trimer, hexamethylene diisocyanate trimer, stirring.
Optionally, a kind of preparation method of quick-drying high rigidity bi-component polyurethane ester wood lacquer, comprising the following steps:
(1) it prepares the host agent: according to the ingredient in host agent, by short oil alkyd resin, polyether polyol, dispersing agent, preventing
Heavy agent is added in dispersion cylinder, under the revolving speed of 600~800rmp stir 10~15min, then while dispersion while be added hand feeling agent,
Delustering agent is dispersed to fineness no more than 25 μm under the revolving speed of 1000~1200rmp, and the butyl acetate being then added adds
Levelling agent, defoaming agent, vinyl resins, propylene glycol methyl ether acetate continue to disperse 15min under the revolving speed of 700~800rmp
~20min is measured and is discharged after filtering after viscosity is 2000 ± 300CP to get the host agent；
(2) it prepares the curing agent: according to the ingredient in curing agent, butyl acetate being added in dispersion cylinder, first is added
Phenylene diisocyanate addition product, toluene diisocyanate trimer, hexamethylene diisocyanate trimer, 300~
It is stirred under the revolving speed of 500rmp, measures and discharge after being filtered after viscosity is 10 ± 3S.
Host agent is mixed with curing agent by weight 1:0.2-0.8 (preferably 1:0.5) when use, it is dilute using polyurethane
It releases agent to open dilute to Iwata cup No.2 viscosity 11~14 seconds, has a gas hand spray using conventional, the coating weight of plane spraying is 200~
250g/ squares (containing loss).
By coating room temperature for 25 DEG C, conventional bicomponent polyurethane carpentry paint gloss stabilization need to dry 8 hours with
On, can pack the time need to generally be relatively inaccessible to 1H to dry 24 hours pencil hardness wait do 24 hours or more；The invention is compared with this
Product gloss stablize only need to wait do 4 hours, can pack need to time≤12 hour be done, pencil hardness reaches 2H, scratch resistant performance
Better than conventional products, the coating process-cycle shortens 50% or more, increases substantially coating efficiency, and it is empty to reduce coating place to be done
Between.Two component polyurethane woodwork coating of the invention is compared with common two component polyurethane woodenware priming paint, rate of drying and hardness
It establishes faster, the performances such as hardness, resistance to marring are all more prominent.
Compared with the existing technology, beneficial effects of the present invention:
(1) two component polyurethane woodwork coating of the invention makes full use of the complementary advantage of storeroom, with drying speed
Feature, coating process-cycle are greatly shortened, and the winter of low temp area is especially prominent, and it is dry to improve conventional bicomponent polyurethane paint
The problem of dry time is slow, inefficiency；
(2) two component polyurethane woodwork coating hardness of the invention is established fast, and final hardness can reach 2H level, is formed again
Hard and tough paint film, adhesion strength significantly improve.
Specific embodiment
In order to preferably explain the present invention, it is described further now in conjunction with following specific embodiments, but the present invention is unlimited
In specific embodiment.
Embodiment 1
A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer, including host agent and curing agent,
According to parts by weight, the host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
Embodiment 2
A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer, including host agent and curing agent, according to parts by weight,
The host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
Embodiment 3
A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer, including host agent and curing agent, according to parts by weight,
The host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
Embodiment 4
A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer, including host agent and curing agent, according to parts by weight, the master
Agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
Embodiment 5
A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer, including host agent and curing agent,
According to parts by weight, the host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
In embodiment 1-5, the short oil alkyd resin is DSM N. V. Novalkyd 3800X60C fatty acid alkyd resin；
The polyether polyol trade mark is N-330；The vinyl resins is ternary chlorine vinegar；The toluene di-isocyanate(TDI) addition product,
Toluene diisocyanate trimer, hexamethylene diisocyanate trimer are provided by Coase wound company；The dispersing agent is complete
Gram chemical company's BYK-163 dispersing agent；The defoaming agent is Bi Ke chemical company BYK-141 defoaming agent；The levelling agent is complete
Gram chemical company's BYK-310 levelling agent；The anti-settling agent is the HX-8800 anti-settling agent of company of China；The hand feeling agent is road
1778 hand feeling agents of Bo Run company；The delustering agent is the ED-2 delustering agent of W. R. Grace & Co.(1) it prepares the host agent: pressing
Short oil alkyd resin, polyether polyol, dispersing agent, anti-settling agent are added in dispersion cylinder by the ingredient in license-master's agent, 600~
10~15min is stirred under the revolving speed of 800rmp, hand feeling agent, delustering agent then is added in dispersion, in turning for 1000~1200rmp
Fineness is dispersed under speed no more than 25 μm, the butyl acetate being then added adds levelling agent, defoaming agent, vinyl resins, third
Glycol methyl ether acetate, continue under the revolving speed of 700~800rmp disperse 15min~20min, measure viscosity be 2000 ±
Discharging is after filtering after 300CP to get the host agent.(2) curing agent is prepared: according to the ingredient in curing agent, by acetic acid fourth
Ester is added in dispersion cylinder, and toluene di-isocyanate(TDI) addition product, toluene diisocyanate trimer, two isocyanide of hexa-methylene is added
Acid esters tripolymer stirs under the revolving speed of 300~500rmp, measures and discharges after filtering after viscosity is 10 ± 3S.It will be led when use
Agent is mixed with curing agent by weight 1:0.5.
It is used through practice of construction, the bi-component polyurethane ester wood lacquer gloss of 1-5 of the embodiment of the present invention is stablized only need to be small to dry 4
When (ordinary room temperature), can pack need to time≤12 hour (ordinary room temperature) be done, pencil hardness reaches 2H, not only hard but also tough, scratch-resistant
Hurt performance better than conventional products, the coating process-cycle shortens 50% or more, can increase substantially coating efficiency, reduces coating and waits for
Dry site space.
Comparative example 1
It is same as Example 1, the difference is that substituting DSM N. V. Novalkyd using common short oil alkyd resin
3800X60C fatty acid alkyd resin.The product flexibility of comparative example 1 is poor, and brushability is poor, short using the time intolerant to flavescence, light
Damp stabilization need to be wait do 8 hours or more (ordinary room temperature).
Comparative example 2
It is same as Example 1, the difference is that the use of common polyether polyalcohol (non-N-330) substitution trade mark being the poly- of N-330
Ethoxylated polyhydric alcohol.The product flexibility of comparative example 2 is very poor, and gloss stabilization need to be wait do 8 hours or more (ordinary room temperature).
Above is only a specific embodiment of the present invention, it is not intended to limit the scope of the invention, all utilizations
The equivalent transformation that the present invention makees, is applied directly or indirectly in other relevant technical fields, similarly includes of the invention
Among scope of patent protection.
Claims (10)
1. a kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer, which is characterized in that including host agent and curing agent, in parts by weight
Meter, the host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
2. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 1, which is characterized in that including host agent and admittedly
Agent,
According to parts by weight, the host agent includes following raw material components:
According to parts by weight, the curing agent includes following raw material components:
3. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 1 or 2, which is characterized in that the auxiliary agent
Including at least one of dispersing agent, anti-settling agent, hand feeling agent, delustering agent, levelling agent, defoaming agent.
4. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 1 or 2, which is characterized in that by weight
Number meter, the auxiliary agent includes following components:
5. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 1 or 2, which is characterized in that the short oil
Alkyd resin is DSM N. V. Novalkyd 3800X60C fatty acid alkyd resin, molecular weight 4000 ± 200；The polyether polyols
The alcohol trade mark is N-330, molecular weight 3000 ± 200.
6. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 1 or 2, which is characterized in that the ethylene
Resinoid is ternary chlorine vinegar.
7. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 1 or 2, which is characterized in that the toluene
The isocyanate group content of diisocyanate addition product is 10-15%；The isocyanate group content of toluene diisocyanate trimer is
5-10%；The isocyanate group content of hexamethylene diisocyanate trimer is 15-25%.
8. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 4, which is characterized in that the dispersing agent is
Bi Ke chemical company BYK-163 dispersing agent；The defoaming agent is Bi Ke chemical company BYK-141 defoaming agent；The levelling agent is
Bi Ke chemical company BYK-310 levelling agent.
9. quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 4, which is characterized in that the anti-settling agent
For the HX-8800 anti-settling agent of company of China；The hand feeling agent is 1778 hand feeling agents of Lubrizol Corp.；The delustering agent is lattice
The ED-2 delustering agent of Leix company.
10. a kind of preparation side of quick-drying high rigidity bi-component polyurethane ester wood lacquer according to claim 1 to 9
Method, which comprises the following steps:
(1) it prepares the host agent: according to the ingredient in host agent, short oil alkyd resin, polyether polyol, auxiliary agent being added to dispersion
In cylinder, it is dispersed to fineness and is no more than 25 μm, the butyl acetate being then added, vinyl resins, propylene glycol methyl ether acetate；
(2) it prepares the curing agent: according to the ingredient in curing agent, butyl acetate being added in dispersion cylinder, toluene two is added
Isocyanate addition product, toluene diisocyanate trimer, hexamethylene diisocyanate trimer, stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396486.XA CN109370413A (en) | 2018-11-22 | 2018-11-22 | A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396486.XA CN109370413A (en) | 2018-11-22 | 2018-11-22 | A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer and preparation method thereof |
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| CN109370413A true CN109370413A (en) | 2019-02-22 |
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| CN201811396486.XA Withdrawn CN109370413A (en) | 2018-11-22 | 2018-11-22 | A kind of quick-drying high rigidity bi-component polyurethane ester wood lacquer and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577797A (en) * | 2019-08-21 | 2019-12-17 | 广东嘉宝莉科技材料有限公司 | Bi-component low-VOC (volatile organic compound) environment-friendly polyurethane wood paint and preparation method thereof |
| CN111154349A (en) * | 2020-01-16 | 2020-05-15 | 上海立邦长润发涂料有限公司 | PU (polyurethane) water-based refinishing paint and preparation method thereof |
-
2018
- 2018-11-22 CN CN201811396486.XA patent/CN109370413A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577797A (en) * | 2019-08-21 | 2019-12-17 | 广东嘉宝莉科技材料有限公司 | Bi-component low-VOC (volatile organic compound) environment-friendly polyurethane wood paint and preparation method thereof |
| CN111154349A (en) * | 2020-01-16 | 2020-05-15 | 上海立邦长润发涂料有限公司 | PU (polyurethane) water-based refinishing paint and preparation method thereof |
| CN111154349B (en) * | 2020-01-16 | 2021-11-16 | 上海立邦长润发涂料有限公司 | PU (polyurethane) water-based refinishing paint and preparation method thereof |
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