CN107573824A - A kind of dual cure woodenware glossy varnish and preparation method thereof - Google Patents
A kind of dual cure woodenware glossy varnish and preparation method thereof Download PDFInfo
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- CN107573824A CN107573824A CN201710880658.XA CN201710880658A CN107573824A CN 107573824 A CN107573824 A CN 107573824A CN 201710880658 A CN201710880658 A CN 201710880658A CN 107573824 A CN107573824 A CN 107573824A
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- woodenware
- dual cure
- glossy varnish
- glossy
- levelling agent
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Abstract
The invention discloses a kind of dual cure woodenware glossy varnish and preparation method thereof, it is made up of the component of following part by weight：Mian paint:Diluent:Initiator:Accelerator:Curing agent=100:40:1~2:1~2:50；Mian paint is made up of the component of following mass percent：Unsaturated polyester resin 80%~90%, defoamer 0.4%~0.6%, levelling agent 0.3%~0.6%, polymerization inhibitor 0.1%~0.3%, methyl iso-butyl ketone (MIBK) 4%, active solvent 5%~15%；Levelling agent is the mixture of organic silicon modified by polyether and fluorine richness polyacrylic acid；Curing agent is made up of the component of following mass percent：TDI addition products 65%, butyl acetate 35%, the solid content of TDI addition products is 75%, and NCO NCO content is 12.9%~13.4%.The woodenware glossy varnish of the present invention had both had the levelability of PU glossy varnishes, planarization and slickness, there is the thick painting of PE glossy varnishes to be not easy again, and heat rash appears, high richness, the characteristic of high rigidity, improve coating efficiency and assign product excellent painting effect, while there is energy-conservation, it is environmentally friendly the advantages that.
Description
Technical field
The present invention relates to a kind of woodenware glossy varnish and preparation method thereof, belong to paint of coating technical field.
Background technology
With social development, the mankind require more and more higher to the painting effect of woodwork, and consumer pursues the plentiful of film
Degree, it is ornamental.For gloss varnish as a kind of high-grade ornament materials, coating is glittering and translucent, smooth bright, gives people plentiful regard
Feel have as specular painting effect, build noble style and bright light environments, improve furniture exterior decorative effect,
More and more by consumers.Currently used light top coat top coat is mainly PU glossy varnishes and PE glossy varnishes, still
Many defects in application process be present, easily heat rash appears in coating process for PU glossy varnishes, has a strong impact on painting effect, together
When hardness and richness do not reach customer requirement yet, it is impossible to meet the coating specification of top-grade furniture.And although PE gloss varnish has
There is low VOC, solids content is high, and film is bright, and hardness is high, is not easy to collapse, and can once construct and obtain thicker film, is formed plentiful
The features such as film, but because curing reaction is free radicals copolymerization reaction, the inhibition of film-forming oxygen in by air, make freedom
Base loses activity and solidifies bad, easily occurs surface defect, especially shrinkage cavity and pin hole in work progress.This not only influences
Appearance of film, while the sealing of film is reduced, the service life of coating is influenceed, is restricted its application.These problems one
Directly annoying producer and engineers and technicians.For above-mentioned deficiency, it is badly in need of developing a kind of high rigidity, high richness, thickness can not apply
The woodenware glossy varnish of prickly heat, meet the requirement that current consumer improves constantly to painting effect.
The content of the invention
It is an object of the invention to solve the above problems or defect, and provide the advantages of will be described later.
A further object of the invention is that solve deficiency existing for glossy varnish in the prior art, there is provided a kind of high hard
Degree, high richness, thickness apply the dual cure woodenware glossy varnish that heat rash appears.
It is a still further object of the present invention to provide a kind of preparation method of dual cure woodenware glossy varnish, its technique step
Rapid simple, reaction condition is gentle, and the film of obtained woodenware glossy varnish is abundant voluptuousness, as bright as a sixpence, has excellent
Decorative effect, hence it is evident that improve coating efficiency.
In order to realize these purposes and further advantage of the invention, the invention provides a kind of clear face of dual cure woodenware light
Paint, is made up of the component of following part by weight：Mian paint:Diluent:Initiator:Accelerator:Curing agent=100:40:1~2:1~
2:50；
Wherein, the mian paint is made up of the component of following mass percent：Unsaturated polyester resin 80%~90%, defoaming
Agent 0.4%~0.6%, levelling agent 0.3%~0.6%, polymerization inhibitor 0.1%~0.3%, methyl iso-butyl ketone (MIBK) 4%, active solvent
5%~15%；The levelling agent is mixed by organic silicon modified by polyether levelling agent and fluorine richness polyacrylic acid levelling agent；
The curing agent is made up of the component of following mass percent：TDI addition products 65%, butyl acetate 35% are described
TDI addition products are Bayer L-75 curing agent, solid content 75%.
Preferably, the diluent is made up of the component of following mass percent：Butyl acetate 50%, styrene
30%, propylene glycol methyl ether acetate 20%.
Preferably, the initiator is the methyl ethyl ketone peroxide solution of mass concentration 10%.
Preferably, the accelerator is the colourless accelerator of LCC-A of the long weathering in Shanghai, can effectively reduce film face
Color, the transparency is improved, improve the presentation quality of woodenware.
Preferably, the unsaturated polyester resin is that allyl ether is modified air drying type modified unsaturated polyester resin, its
Solid content 74~78%, acid number are 10~20mgKOH/g, and viscosity is 1800~2200mpa.s, and OH values are 30~50mgKOH/g.
Preferably, the defoamer is modified siloxane type defoamer, and can effectively eliminate bubble will not produce surface again
Mist shadow and shrinkage cavity phenomenon.
Preferably, the polymerization inhibitor is the quinol solution of 5% concentration.
Preferably, the active solvent is styrene.
Preferably, the levelling agent by organic silicon modified by polyether levelling agent and fluorine richness polyacrylic acid levelling agent by weight
Than 2:1 mixes.
A kind of method for preparing above-mentioned dual cure woodenware glossy varnish, it comprises the following steps：
(A) mian paint is prepared：
Raw material is weighed by following mass percent：Unsaturated polyester resin 80%~90%, defoamer 0.4%~0.6%,
Levelling agent 0.3%~0.6%, polymerization inhibitor 0.1%~0.3%, methyl iso-butyl ketone (MIBK) 4%, active solvent 5%~15%；First
Methyl iso-butyl ketone (MIBK), defoamer, levelling agent, polymerization inhibitor and amount of activated solvent are added in reaction vessel, open stirring, at a high speed
Scattered 10min；Then unsaturated polyester resin is added into reaction vessel, at a high speed scattered 15min, until fineness is less than 20um, then
With mixed liquor in remaining active solvent regulation reaction vessel to required viscosity, filtering, mian paint is packaged to be；
(B) curing agent is prepared：
35kg butyl acetates are put into reactor, are warming up to 110 DEG C of vacuum dehydration 30min, are then cooled to 60 DEG C, are added
65kg TDI addition products, stirring 30min are incubated 30mn to being well mixed, at 50 DEG C or so, cooled down, and filtering, are packaged to be solidification
Agent；
(C) diluent is prepared：
Raw material is weighed by following mass percent：Butyl acetate 50%, styrene 30%, propylene glycol methyl ether acetate
20%；Three kinds of raw materials are well mixed and obtain diluent；
(D) mian paint is pressed:Diluent:Initiator:Accelerator:Curing agent=100:40:1~2:1~2:50 weight proportion
Each component is well mixed, that is, obtains dual cure woodenware glossy varnish.
Compared with prior art, the present invention is advantageous in that：
The present invention utilizes IPN technologies, and polyurethane is introduced in unsaturated polyester (UP), utilizes end existing for modified unsaturated polyester
The characteristic that hydroxyl can react with the NCO of isocyanates, forms carbamate.Curing reaction includes following two in the case
Individual key reaction：When the copolyreaction of unsaturated polyester (UP) and styrene, second, the polyester of hydroxyl and isocyanate group generation ammonia
The reaction of carbamate, two reactions are carried out simultaneously, unsaturated polyester (UP)/polyurethane composite network polymer are formed, with reference to poly- ammonia
The advantages of ester and unsaturated polyester resin.Due to increasing the average molecular of resin while second reaction forms polyurethane segment
Quality so that microphase-separated after macromolecular solidification, form toughness and rigid alternate segment, reach its hardness and flexible collaboration
Effect.Particularly polyurethane segment easily makes the chain link elongation where it, so as to offset unsaturated polyester (UP) after solidification is heated
Cure shrinkage, the shrinkage factor of resin is reduced, improve levelability.And the reaction is not influenceed by air, can be formed smooth dry
Dry surface, film coated surface shrinkage cavity and pin-hole phenomena are eliminated, improve film brightness, hence it is evident that improve the surface state of film, it appears
It is more plentiful.Due to existing unsaturated chain link on the segment in copolymer, contain carbamate groups again, formed after solidification high
The network structure of crosslinking is spent, two components have complementary advantages, and produce cooperative effect, the advantages of taking into account two kinds of coating, obtain high rigidity, put down
It is whole plentiful, it is smooth, it is as bright as a sixpence as painting effect, performance is significantly better than PU glossy varnishes and PE glossy varnishes, meets
The high finishing requirements of high-grade woodenware product, it is adapted to the Aesthetic View of consumer, it is deep by the favor in market and liking for client.And should
System without using the benzene class thing such as dimethylbenzene, meets environmental requirement completely.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Embodiment
The preferred embodiments of the present invention are illustrated below, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
The step of preparing dual cure woodenware glossy varnish：
(A) mian paint is prepared：Raw material is weighed by following mass percent：Unsaturated polyester resin 80%, defoamer 0.4%,
Levelling agent 0.5%, polymerization inhibitor 0.1%, methyl iso-butyl ketone (MIBK) 4%, active solvent 15%；First by methyl iso-butyl ketone (MIBK), defoamer,
Levelling agent, polymerization inhibitor and amount of activated solvent are put into reaction vessel, start stirring dispersion machine, with 1000~1200r/ of rotating speed
Min is scattered 10 minutes at a high speed, after stirring, adds unsaturated polyester resin, is divided at a high speed with 1200~1500r/min of rotating speed
Dissipate 15 minutes, until detection fineness is less than 20um, is adjusted with remaining active solvent to required viscosity, filter and package to obtain mian paint group
Point；
(B) curing agent is prepared：35kg butyl acetates are put into reactor, are warming up to 110 DEG C, vacuum dehydration 30 minutes is to de-
Water is complete, is then cooled to 60 DEG C, adds 65kg TDI addition products, and 30 minutes are stirred to well mixed with rotating speed 600r/min,
30 minutes are incubated at 50 DEG C or so, is cooled down, filtering, packs to obtain curing agent component；
(C) diluent is prepared：Raw material is weighed by following mass percent：Butyl acetate 50%, styrene 30%, propane diols
Methyl ether acetate 20%；Three kinds of raw material components are well mixed and obtain diluent；
(D) mian paint is pressed:Diluent:Initiator:Accelerator:Curing agent=100:40:1~2:1~2:50 weight proportion
Each component is mixed, stirred, obtains a kind of dual cure woodenware glossy varnish.
Embodiment 2
The step of preparing the dual cure woodenware glossy varnish of the present invention：
(A) mian paint is prepared：Raw material is weighed by following mass percent：Unsaturated polyester resin 85%, defoamer 0.5%,
Levelling agent 0.5%, polymerization inhibitor 0.2%, methyl iso-butyl ketone (MIBK) 4%, active solvent 9.8%；First by methyl iso-butyl ketone (MIBK), defoaming
Agent, levelling agent, polymerization inhibitor and amount of activated solvent are put into reaction vessel, start stirring dispersion machine, with rotating speed 1000~
1200r/min is scattered 10 minutes at a high speed, after stirring, unsaturated polyester resin is added, with 1200~1500r/min of rotating speed
It is scattered 15 minutes at a high speed, until detection fineness is less than 20um, is adjusted to required viscosity, filtered and packaged with remaining active solvent
Mian paint component；
(B) curing agent is prepared：35kg butyl acetates are put into reactor, are warming up to 110 DEG C, vacuum dehydration 30 minutes is to de-
Water is complete, is then cooled to 60 DEG C, adds 65kg TDI addition products, and 30 minutes are stirred to well mixed with rotating speed 600r/min,
30 minutes are incubated at 50 DEG C or so, is cooled down, filtering, packs to obtain curing agent component；
(C) diluent is prepared：Raw material is weighed by following mass percent：Butyl acetate 50%, styrene 30%, propane diols
Methyl ether acetate 20%；Three kinds of raw materials are well mixed and uniformly obtain diluent；
(D) mian paint is pressed:Diluent:Initiator:Accelerator:Curing agent=100:40:1~2:1~2:50 weight proportion
Each component is mixed, stirred, obtains a kind of dual cure woodenware glossy varnish.
Embodiment 3
Prepare the dual cure woodenware glossy varnish of the present invention：
(A) mian paint is prepared：Raw material is weighed by following mass percent：Unsaturated polyester resin 90%, defoamer 0.6%,
Levelling agent 0.6%, polymerization inhibitor 0.3%, methyl iso-butyl ketone (MIBK) 4%, active solvent 4.5%；First by methyl iso-butyl ketone (MIBK), defoaming
Agent, levelling agent, polymerization inhibitor and amount of activated solvent are put into reaction vessel, start stirring dispersion machine, with rotating speed 1000~
1200r/min is scattered 10 minutes at a high speed, after stirring, unsaturated polyester resin is added, with 1200~1500r/min of rotating speed
It is scattered 15 minutes at a high speed, until detection fineness is less than 20um, is adjusted to required viscosity, filtered and packaged with remaining active solvent
Mian paint component；
(B) curing agent is prepared：35kg butyl acetates are put into reactor, are warming up to 110 DEG C, vacuum dehydration 30 minutes is to de-
Water is complete, is then cooled to 60 DEG C, adds 65kg TDI addition products, and 30 minutes are stirred to well mixed with rotating speed 600r/min,
30 minutes are incubated at 50 DEG C or so, is cooled down, filtering, packs to obtain curing agent component；
(C) diluent is prepared：Raw material is weighed by following mass percent：Butyl acetate 50%, styrene 30%, propane diols
Methyl ether acetate 20%；Three kinds of raw materials are well mixed and obtain diluent；
(D) mian paint is pressed:Diluent:Initiator:Accelerator:Curing agent=100:40:1~2:1~2:50 weight proportion
Each component is mixed, stirred, obtains a kind of dual cure woodenware glossy varnish.
The dual cure woodenware glossy varnish that is prepared in above-described embodiment and the PU glossy varnishes bought back on the market and
The performance comparision of PE glossy varnishes, as a result such as following table：
| Project | Levelability | Defoaming | Hardness | Richness | Adhesive force | Finish paint plate face effect |
| Embodiment 1 | It is excellent | It is excellent | 2H | It is excellent | 1 | It is smooth |
| Embodiment 2 | It is excellent | It is excellent | 2H | It is excellent | 1 | It is smooth |
| Embodiment 3 | It is excellent | It is excellent | 2H | It is excellent | 1 | It is smooth |
| PU glossy varnishes | It is excellent | It is excellent | H | It is good | 1 | Heat rash appears for thickness painting |
| PE glossy varnishes | It is good | It is good | 2H | It is excellent | 2 | Planarization is poor, has pin hole |
It can be seen that by upper table data：Dual cure woodenware glossy varnish prepared by the present invention has high richness, high
The mirror effect of hardness, heat rash appears for thickness painting, compensate for the painting defect of PU glossy varnishes and PE glossy varnishes, hence it is evident that carry
The decorative effect and coating efficiency of high product, improve the competitiveness of product in market, while there is energy-conservation, it is environmentally friendly the advantages that.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
Any simple modification, equivalent change and modification made to above example, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of dual cure woodenware glossy varnish, it is characterised in that be made up of the component of following part by weight：Mian paint:It is dilute
Release agent:Initiator:Accelerator:Curing agent=100:40:1~2:1~2:50；
Wherein, the mian paint is made up of the component of following mass percent：Unsaturated polyester resin 80%~90%, defoamer
0.4%~0.6%, levelling agent 0.3%~0.6%, polymerization inhibitor 0.1%~0.3%, methyl iso-butyl ketone (MIBK) 4%, active solvent
5%~15%；The levelling agent is mixed by organic silicon modified by polyether levelling agent and fluorine richness polyacrylic acid levelling agent；
The curing agent is made up of the component of following mass percent：TDI addition products 65%, butyl acetate 35%, the TDI add
Solid content into thing is 75%, and NCO NCO content is 12.9%~13.4%.
2. dual cure woodenware glossy varnish as claimed in claim 1, it is characterised in that the diluent is by following quality
The component of percentage is formed：Butyl acetate 50%, styrene 30%, propylene glycol methyl ether acetate 20%.
3. dual cure woodenware glossy varnish as claimed in claim 2, it is characterised in that the initiator is mass concentration
10% methyl ethyl ketone peroxide solution.
4. dual cure woodenware glossy varnish as claimed in claim 3, it is characterised in that the accelerator is the long wind in Shanghai
The colourless accelerator of LCC-A of chemistry.
5. dual cure woodenware glossy varnish as claimed in claim 1, it is characterised in that the unsaturated polyester resin is
Allyl ether is modified air drying type modified unsaturated polyester resin, and solid content 74~78%, acid number is 10~20mgKOH/g, viscosity
For 1800~2200mpa.s, OH values are 30~50mgKOH/g.
6. dual cure woodenware glossy varnish as claimed in claim 5, it is characterised in that the defoamer is modified silica
Alkane type defoamer.
7. dual cure woodenware glossy varnish as claimed in claim 6, it is characterised in that the polymerization inhibitor is 5% concentration
Quinol solution.
8. dual cure woodenware glossy varnish as claimed in claim 7, it is characterised in that the active solvent is benzene second
Alkene.
9. dual cure woodenware glossy varnish as claimed in claim 8, it is characterised in that the levelling agent is by polyether-modified
Organosilicon levelling agent and fluorine richness polyacrylic acid levelling agent are by weight 2:1 mixes.
10. a kind of preparation method of dual cure woodenware glossy varnish as claimed in any one of claims 1 to 9 wherein, it is special
Sign is, comprises the following steps：
(A) mian paint is prepared：
Raw material is weighed by following mass percent：Unsaturated polyester resin 80%~90%, defoamer 0.4%~0.6%, levelling
Agent 0.3%~0.6%, polymerization inhibitor 0.1%~0.3%, methyl iso-butyl ketone (MIBK) 4%, active solvent 5%~15%；First by first
Base isobutyl ketone, defoamer, levelling agent, polymerization inhibitor and amount of activated solvent are added in reaction vessel, open stirring, scattered at a high speed
10min；Then unsaturated polyester resin is added into reaction vessel, at a high speed scattered 15min, until fineness is less than 20um, then with remaining
Mixed liquor filtering, is packaged to be mian paint to required viscosity in remaining active solvent regulation reaction vessel；
(B) curing agent is prepared：
35kg butyl acetates are put into reactor, are warming up to 110 DEG C of vacuum dehydration 30min, are then cooled to 60 DEG C, are added
65kgTDI addition products, stirring 30min are incubated 30mn to being well mixed, at 50 DEG C or so, cooled down, and filtering, are packaged to be solidification
Agent；
(C) diluent is prepared：
Raw material is weighed by following mass percent：Butyl acetate 50%, styrene 30%, propylene glycol methyl ether acetate 20%；Will
Three kinds of raw materials are well mixed to obtain diluent；
(D) mian paint is pressed:Diluent:Initiator:Accelerator:Curing agent=100:40:1~2:1~2:50 weight proportion will be each
Component is well mixed, that is, obtains dual cure woodenware glossy varnish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710880658.XA CN107573824A (en) | 2017-09-26 | 2017-09-26 | A kind of dual cure woodenware glossy varnish and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880658.XA CN107573824A (en) | 2017-09-26 | 2017-09-26 | A kind of dual cure woodenware glossy varnish and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN107573824A true CN107573824A (en) | 2018-01-12 |
Family
ID=61039134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710880658.XA Pending CN107573824A (en) | 2017-09-26 | 2017-09-26 | A kind of dual cure woodenware glossy varnish and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777268A (en) * | 2019-01-04 | 2019-05-21 | 湖南省金海科技有限公司 | One kind is from developed band fluorescence low-light solidified carpentry coating and preparation method thereof |
| CN110903749A (en) * | 2019-10-22 | 2020-03-24 | 上海嘉宝莉涂料有限公司 | Bright finish paint and preparation method thereof |
| CN114381199A (en) * | 2021-12-15 | 2022-04-22 | 青岛展辰新材料有限公司 | Double-component PU and UV dual-curing glossy varnish |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362874A (en) * | 2007-08-06 | 2009-02-11 | 上海富臣化工有限公司 | Unsaturated polyester modified polyurethane coating varnish |
| CN105462483A (en) * | 2016-01-15 | 2016-04-06 | 成都优品化工有限公司 | Dual-curing unsaturated polyester transparent primer and preparation method thereof |
-
2017
- 2017-09-26 CN CN201710880658.XA patent/CN107573824A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362874A (en) * | 2007-08-06 | 2009-02-11 | 上海富臣化工有限公司 | Unsaturated polyester modified polyurethane coating varnish |
| CN105462483A (en) * | 2016-01-15 | 2016-04-06 | 成都优品化工有限公司 | Dual-curing unsaturated polyester transparent primer and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777268A (en) * | 2019-01-04 | 2019-05-21 | 湖南省金海科技有限公司 | One kind is from developed band fluorescence low-light solidified carpentry coating and preparation method thereof |
| CN110903749A (en) * | 2019-10-22 | 2020-03-24 | 上海嘉宝莉涂料有限公司 | Bright finish paint and preparation method thereof |
| CN114381199A (en) * | 2021-12-15 | 2022-04-22 | 青岛展辰新材料有限公司 | Double-component PU and UV dual-curing glossy varnish |
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Application publication date: 20180112 |