CN104312392A - Thick coating type unsaturated polyester white primer paint and preparation method thereof - Google Patents
Thick coating type unsaturated polyester white primer paint and preparation method thereof Download PDFInfo
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- CN104312392A CN104312392A CN201410544102.XA CN201410544102A CN104312392A CN 104312392 A CN104312392 A CN 104312392A CN 201410544102 A CN201410544102 A CN 201410544102A CN 104312392 A CN104312392 A CN 104312392A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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Abstract
The invention provides a thick coating type unsaturated polyester white primer paint and a preparation method thereof. The thick coating type unsaturated polyester white primer paint is prepared from the following components in parts by weight: PE unsaturated polyester resin, a dispersing agent, rutile titanium dioxide, organic soil, gas-phase silicon dioxide, ground limestone, PE special powder, zinc stearate, a solvent, a flatting agent, a de-foaming agent and a catalyst; the PE unsaturated polyester resin is prepared from butanediol, cis-butenedioic anhydride, phthalic anhydride, glycidyl allyl ether, TDI-TMP, a polymerization inhibitor, styrene and a catalyst; and TDI-TMP is prepared from toluene isocyanate and trimethylolpropane in a molar ratio of 1 to 1. According to the unsaturated polyester white primer paint and the preparation method thereof, the thick coating type unsaturated polyester white primer paint is directly sprayed and then next procedure can be carried out. Therefore, the time and labor of customers are reduced; and meanwhile, the production efficiency is improved, the manpower is reduced and the production cost is reduced further.
Description
Technical field
The present invention relates to a kind of thick coated type unsaturated polyester based white primer for woodwork coating and preparation method thereof, particularly relate to a kind of thick coated type unsaturated polyester based white primer and preparation method thereof without sealing treatment or the bad various solid wood and low density medium density fiberboard etc. of sealing treatment.
Background technology
Unsaturated polyester based white primer at present for woodwork coating commercially occupies the no small market share.The coating process of general Furniture Factory first sprays PU seal coat or PU transparent priming, sprays unsaturated polyester based white primer again, and then carry out next process after dry polishing.
Concerning unsaturated polyester based white primer, a lot of to its technical requirements, as: need that closure is good, fillibility is good, anti-sag resistance is good, sag prevention excellent, the polishing time is short, grinability is excellent, ply adhesion is strong, the excellent feature of opacifying power.But the limitation of Seal property that these unsaturated polyester based white primers adopt due to it at present causes closure, sag prevention, anti-sag resistance and polishing limited time.Particularly most of Furniture Factory is in order to energy punctual delivery, shortens process period, reduces artificial, cuts down finished cost, often spraying PU seal coat or PU transparent priming are removed, directly on ground, spray unsaturated polyester based white primer.The disadvantages such as this coating process is easy to when spraying thicker to occur to bubble, subside, ftracture, sagging.Along with the development of furniture market, density board is used to form a kind of trend and trend, in occupation of the no small market share as the white furniture of ground.For this reason especially for ground without sealing treatment or the bad various solid wood of sealing treatment and low density medium density fiberboard, develop one can on ground direct spraying, coating thickness reaches 2mm also can not problematic thick coated type unsaturated polyester based white primer.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of thick coated type unsaturated polyester based white primer, utilize unsaturated polyester based white primer of the present invention, do not need first to spray one PU seal coat or PU transparent priming to without the base material such as sealing treatment or the bad low density medium density fiberboard of sealing treatment, this thick coated type unsaturated polyester based white primer of direct spraying just can carry out next process.Client is not only saved time but also laborsaving, improves production efficiency simultaneously, reduce artificial, reduce production cost further.
Two of technical problem to be solved by this invention is to provide a kind of preparation method of thick coated type unsaturated polyester based white primer, and operation is simple, can form at substrate surfaces such as various solid wood, composition board and medium density fiberboard the complete film that sticking power is 1 grade.
The technical scheme solving above-mentioned first technical problem is: a kind of thick coated type unsaturated polyester based white primer, according to weight parts, is prepared from by following raw material:
PE unsaturated polyester resin 45 ~ 55 parts
Dispersion agent 0.3 ~ 0.5 part
Rutile type Titanium Dioxide 10 ~ 18 parts
Organophilic clay 0.3 ~ 1.0 part
Aerosil 0.1 ~ 1.0 part
Coarse whiting 10 ~ 20 parts
PE tailored flour 10 ~ 20 parts
Zinic stearas 1 ~ 5 part
Solvent 3 ~ 10 parts
Flow agent 0.1 ~ 0.5 part
Defoamer 0.1 ~ 0.5 part
Siccative 0 ~ 0.5 part
Wherein, PE unsaturated polyester resin is prepared from by following raw material:
Butyleneglycol 10 ~ 30 parts
MALEIC ANHYDRIDE 15 ~ 30 parts
Tetra hydro Phthalic anhydride 12 ~ 30 parts
10 ~ 20 parts, dehydration glycerol allyl ether
TDI-TMP 9 ~ 16 parts
Stopper 0.005 ~ 0.02 part
Vinylbenzene 20 ~ 30 parts
Catalyzer 0.01 ~ 0.3 part
The solids content of PE unsaturated polyester resin is 73+2%, and viscosity is 2000 ~ 3000CPS/25 DEG C;
Described TDI-TMP is that 1:1 is prepared from by toluene diisocyanate (TDI) and TriMethylolPropane(TMP) (TMP) according to mol ratio.
The technical scheme solving above-mentioned second technical problem is: a kind of method preparing above-mentioned thick coated type unsaturated polyester based white primer is:
(1) PE unsaturated polyester resin, dispersion agent, defoamer and partial solvent are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes;
(2) PE tailored flour, Rutile type Titanium Dioxide, organophilic clay, aerosil, coarse whiting, Zinc Stearate is added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes;
(3) finally add siccative, flow agent and remaining solvent, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed;
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and TriMethylolPropane(TMP) (TMP) in molar ratio, adds DMF solvent, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP;
2) take butyleneglycol, Tetra hydro Phthalic anhydride, dehydration glycerol allyl ether, TDI-TMP, catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth;
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the MALEIC ANHYDRIDE adding formula ratio continues esterification to acid number and reaches 49 ~ 52 and be polycondensation terminal;
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add stopper, vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
Further, dispersion agent is castor oil modified anionic carboxylic acid saline copolymer.
Further, PE tailored flour is foliated lamellar talcum powder.
Further, described solvent is vinylbenzene, vinyl acetic monomer or toluene.
Further, described flow agent is fluorin modified crylic acid fat flow agent, and described defoamer is that siccative is organosilicon polymer not containing organosilyl broken bubble polymers soln
The beneficial effect that the present invention is compared with prior art brought is:
1, the PE unsaturated polyester resin synthesized voluntarily introduces tolylene diisocyanate (TDI), and the solidification process of paint film comprises following two chemical reactions: the copolyreaction of the monomer such as unsaturated polyester and vinylbenzene and generate the reaction of polyurethane(s) and urethane resin under the polyester of hydroxyl and the effect of isocyanato.Have the following advantages by the coating prepared by this PE unsaturated polyester resin: 1) because reaction is not below by the impact of air, thus can ensure that the coating paint film obtained is plentiful, gloss is high, is not clamminess; 2) tensile strength of polyurethane(s) that generates of reaction below and unit elongation much stronger than unsaturated polyester, thus make paint film have extraordinary snappiness, even if coating thickness reaches the disadvantage that 2mm also there will not be cracking; 3) unsaturated polyester volumetric shrinkage when solidifying is comparatively large, easily occurs wrinkling, the disadvantage such as to subside with the paint film prepared by it, and after introducing tolylene diisocyanate (TDI), fine with the paint film levelling prepared by it, paint film flat smooth.
2, for without base materials such as sealing treatment or the bad low density medium density fiberboard of sealing treatment, if first do not sprayed one PU seal coat or PU transparent priming, the unsaturated polyester based white primer that direct spraying is general, its paint was easy to infilter in ground before uncured, thus cause paint film to subside, gloss shifting, the disadvantage such as wrinkling, spraying one coat of must doing over again again.PE tailored flour of the present invention is a kind of foliated talcum powder, utilizes its sheet structure, paint can be stoped to infilter ground before curing, make the paint film of formation smooth, without collapse phenomenon, do not need to do over again.
3, thick coated type unsaturated polyester based white primer of the present invention is adopted, do not need first to spray one PU seal coat or PU transparent priming, can be painted on ground, adopting wets touches wet technique, disposable spray finishing just can reach required thickness, even if when thickness reaches 2mm, the disadvantage such as coating also there will not be foaming, sagging, subsides, cracking, does not need to do over again again.This preparation method is simple, client is not only saved time but also laborsaving, improves production efficiency simultaneously, reduces artificial, reduces production cost further, can form the complete film that sticking power is 1 grade after construction at substrate surfaces such as various solid wood, composition board and medium density fiberboard.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated.
Thick coated type unsaturated polyester based white primer is prepared from according to the siccative of weight parts by the PE unsaturated polyester resin of 45 ~ 55 parts, the dispersion agent of 0.3 ~ 0.5 part, the Rutile type Titanium Dioxide of 10 ~ 18 parts, the organophilic clay of 0.3 ~ 1.0 part, the aerosil of 0.1 ~ 1.0 part, the coarse whiting of 10 ~ 20 parts, the PE tailored flour of 10 ~ 20 parts, the Zinic stearas of 1 ~ 5 part, the solvent of 3 ~ 10 parts, the flow agent of 0.1 ~ 0.5 part, the defoamer of 0.1 ~ 0.5 part and 0 ~ 0.5 part.
Described PE unsaturated polyester resin is formed by the catalyst preparing of the butyleneglycol of 10 ~ 30 parts, the MALEIC ANHYDRIDE of 15 ~ 30 parts, the Tetra hydro Phthalic anhydride of 12 ~ 30 parts, the dehydration glycerol allyl ether of 10 ~ 20 parts, the TDI-TMP of 9 ~ 16 parts, the stopper of 0.005 ~ 0.02 part, the vinylbenzene of 20 ~ 30 parts and 0.01 ~ 0.3 part, the solids content of the PE unsaturated polyester resin prepared is 73+2%, and viscosity is 2000 ~ 3000CPS/25 DEG C.Described TDI-TMP is that 1:1 is prepared from by toluene diisocyanate (TDI) and TriMethylolPropane(TMP) (TMP) according to mol ratio.
Described dispersion agent is castor oil modified anionic carboxylic acid saline copolymer.PE tailored flour is foliated lamellar talcum powder.Described solvent is vinylbenzene, vinyl acetic monomer or toluene.Described flow agent is fluorin modified crylic acid fat flow agent, and described defoamer is that siccative is organosilicon polymer not containing organosilyl broken bubble polymers soln.
Embodiment 1.
The preparation method of thick coated type unsaturated polyester based white primer is:
(1) 55 parts of PE unsaturated polyester resins, 0.3 part of dispersion agent, 0.1 part of defoamer and 2 parts of solvents are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes.
(2) 10 parts of PE tailored flours, 18 parts of Rutile type Titanium Dioxides, 0.3 part of organophilic clay, 0.1 part of aerosil, 10 parts of coarse whitings, 1 part of Zinc Stearate are added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes.
(3) finally add 0.1 part of flow agent and 3.1 parts of solvents, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed.
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and the TriMethylolPropane(TMP) (TMP) that gross weight is 8 parts in molar ratio, adds 1 part of DMF solvent, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP.
2) take 30 parts of butyleneglycols, 12 parts of Tetra hydro Phthalic anhydrides, 10 parts of dehydration glycerol allyl ethers, 9 parts of TDI-TMP, 0.01 part of catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth.
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the 18.985 parts of MALEIC ANHYDRIDE adding formula ratio continue esterification to acid numbers and reach 49 ~ 52 and be polycondensation terminal.
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add 0.005 part of stopper, 20 parts of vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
Embodiment 2.
The preparation method of thick coated type unsaturated polyester based white primer is:
(1) 45 parts of PE unsaturated polyester resins, 0.5 part of dispersion agent, 0.5 part of defoamer and 1 part of solvent are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes.
(2) 20 parts of PE tailored flours, 10 parts of Rutile type Titanium Dioxides, 1 part of organophilic clay, 1 part of aerosil, 13 parts of coarse whitings, 5 parts of Zinc Stearates are added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes.
(3) finally add 0.5 part of flow agent and 2 parts of solvents, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed.
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and the TriMethylolPropane(TMP) (TMP) that gross weight is 8.68 parts in molar ratio, adds 3 parts of DMF solvents, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP.
2) take 10 parts of butyleneglycols, 13 parts of Tetra hydro Phthalic anhydrides, 10 parts of dehydration glycerol allyl ethers, 11.68 parts of TDI-TMP, 0.3 part of catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth.
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the 30 parts of MALEIC ANHYDRIDE adding formula ratio continue esterification to acid numbers and reach 49 ~ 52 and be polycondensation terminal.
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add 0.02 part of stopper, 25 parts of vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
Embodiment 3.
The preparation method of thick coated type unsaturated polyester based white primer is:
(1) 45.5 parts of PE unsaturated polyester resins, 0.4 part of dispersion agent, 0.3 part of defoamer and 3 parts of solvents are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes.
(2) 10 parts of PE tailored flours, 10 parts of Rutile type Titanium Dioxides, 0.7 part of organophilic clay, 0.5 part of aerosil, 20 parts of coarse whitings, 2 parts of Zinc Stearates are added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes.
(3) finally add 0.3 part of flow agent and 7 parts of solvents, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed.
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and the TriMethylolPropane(TMP) (TMP) that gross weight is 13 parts in molar ratio, adds 2 parts of DMF solvents, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP.
2) take 12 parts of butyleneglycols, 23.89 parts of Tetra hydro Phthalic anhydrides, 12 parts of dehydration glycerol allyl ethers, 15 parts of TDI-TMP, 0.1 part of catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth.
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the 15 parts of MALEIC ANHYDRIDE adding formula ratio continue esterification to acid numbers and reach 49 ~ 52 and be polycondensation terminal.
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add 0.01 part of stopper, 22 parts of vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
Embodiment 4.
The preparation method of thick coated type unsaturated polyester based white primer is:
(1) 48.4 parts of PE unsaturated polyester resins, 0.4 part of dispersion agent, 0.2 part of defoamer and 1 part of solvent are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes.
(2) 15 parts of PE tailored flours, 14 parts of Rutile type Titanium Dioxides, 0.5 part of organophilic clay, 0.2 part of aerosil, 15 parts of coarse whitings, 3 parts of Zinc Stearates are added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes.
(3) finally add 0.2 part of flow agent and 2 parts of solvents, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed.
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and the TriMethylolPropane(TMP) (TMP) that gross weight is 8 parts in molar ratio, adds 1 part of DMF solvent, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP.
2) take 10 parts of butyleneglycols, 25.985 parts of Tetra hydro Phthalic anhydrides, 10 parts of dehydration glycerol allyl ethers, 9 parts of TDI-TMP, 0.01 part of catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth.
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the 15 parts of MALEIC ANHYDRIDE adding formula ratio continue esterification to acid numbers and reach 49 ~ 52 and be polycondensation terminal.
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add 0.005 part of stopper, 30 parts of vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
Embodiment 5.
The preparation method of thick coated type unsaturated polyester based white primer is:
(1) 45 parts of PE unsaturated polyester resins, 0.5 part of dispersion agent, 0.5 part of defoamer and 1 part of solvent are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes.
(2) 20 parts of PE tailored flours, 10 parts of Rutile type Titanium Dioxides, 1 part of organophilic clay, 1 part of aerosil, 13 parts of coarse whitings, 5 parts of Zinc Stearates are added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes.
(3) finally add 0.5 part of flow agent and 2 parts of solvents, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed.
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and the TriMethylolPropane(TMP) (TMP) that gross weight is 8 parts in molar ratio, adds 1 part of DMF solvent, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP.
2) take 10 parts of butyleneglycols, 30 parts of Tetra hydro Phthalic anhydrides, 15.985 parts of dehydration glycerol allyl ethers, 9 parts of TDI-TMP, 0.01 part of catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth.
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the 15 parts of MALEIC ANHYDRIDE adding formula ratio continue esterification to acid numbers and reach 49 ~ 52 and be polycondensation terminal.
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add 0.005 part of stopper, 20 parts of vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
Embodiment 6.
The preparation method of thick coated type unsaturated polyester based white primer is:
(1) 48.4 parts of PE unsaturated polyester resins, 0.4 part of dispersion agent, 0.2 part of defoamer and 1 part of solvent are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes.
(2) 15 parts of PE tailored flours, 14 parts of Rutile type Titanium Dioxides, 0.5 part of organophilic clay, 0.2 part of aerosil, 15 parts of coarse whitings, 3 parts of Zinc Stearates are added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes.
(3) finally add 0.2 part of flow agent and 2 parts of solvents, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed.
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and the TriMethylolPropane(TMP) (TMP) that gross weight is 8 parts in molar ratio, adds 1 part of DMF solvent, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP.
2) take 20 parts of butyleneglycols, 15.985 parts of Tetra hydro Phthalic anhydrides, 20 parts of dehydration glycerol allyl ethers, 9 parts of TDI-TMP, 0.01 part of catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth.
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the 15 parts of MALEIC ANHYDRIDE adding formula ratio continue esterification to acid numbers and reach 49 ~ 52 and be polycondensation terminal.
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add 0.005 part of stopper, 20 parts of vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
1, in the present invention, the PE unsaturated polyester resin synthesized voluntarily introduces tolylene diisocyanate (TDI), and the solidification process of paint film comprises following two chemical reactions: the copolyreaction of the monomer such as unsaturated polyester and vinylbenzene and generate the reaction of polyurethane(s) and urethane resin under the polyester of hydroxyl and the effect of isocyanato.Have the following advantages by the coating prepared by this PE unsaturated polyester resin: 1) because reaction is not below by the impact of air, thus can ensure that the coating paint film obtained is plentiful, gloss is high, is not clamminess; 2) tensile strength of polyurethane(s) that generates of reaction below and unit elongation much stronger than unsaturated polyester, thus make paint film have extraordinary snappiness, even if coating thickness reaches the disadvantage that 2mm also there will not be cracking; 3) unsaturated polyester volumetric shrinkage when solidifying is comparatively large, easily occurs wrinkling, the disadvantage such as to subside with the paint film prepared by it, and after introducing tolylene diisocyanate (TDI), fine with the paint film levelling prepared by it, paint film flat smooth.
2, for without base materials such as sealing treatment or the bad low density medium density fiberboard of sealing treatment, if first do not sprayed one PU seal coat or PU transparent priming, the unsaturated polyester based white primer that direct spraying is general, its paint was easy to infilter in ground before uncured, thus cause paint film to subside, gloss shifting, the disadvantage such as wrinkling, spraying one coat of must doing over again again.PE tailored flour of the present invention is a kind of foliated talcum powder, utilizes its sheet structure, paint can be stoped to infilter ground before curing, make the paint film of formation smooth, without collapse phenomenon, do not need to do over again.
3, thick coated type unsaturated polyester based white primer of the present invention is adopted, do not need first to spray one PU seal coat or PU transparent priming, can be painted on ground, adopting wets touches wet technique, disposable spray finishing just can reach required thickness, even if when thickness reaches 2mm, the disadvantage such as coating also there will not be foaming, sagging, subsides, cracking, does not need to do over again again.This preparation method is simple, client is not only saved time but also laborsaving, improves production efficiency simultaneously, reduces artificial, reduces production cost further, can form the complete film that sticking power is 1 grade after construction at substrate surfaces such as various solid wood, composition board and medium density fiberboard.
Claims (10)
1. a thick coated type unsaturated polyester based white primer, is characterized in that: according to weight parts, is prepared from by following raw material:
PE unsaturated polyester resin 45 ~ 55 parts
Dispersion agent 0.3 ~ 0.5 part
Rutile type Titanium Dioxide 10 ~ 18 parts
Organophilic clay 0.3 ~ 1.0 part
Aerosil 0.1 ~ 1.0 part
Coarse whiting 10 ~ 20 parts
PE tailored flour 10 ~ 20 parts
Zinic stearas 1 ~ 5 part
Solvent 3 ~ 10 parts
Flow agent 0.1 ~ 0.5 part
Defoamer 0.1 ~ 0.5 part
Siccative 0 ~ 0.5 part
Wherein, PE unsaturated polyester resin is prepared from by following raw material:
Butyleneglycol 10 ~ 30 parts
MALEIC ANHYDRIDE 15 ~ 30 parts
Tetra hydro Phthalic anhydride 12 ~ 30 parts
10 ~ 20 parts, dehydration glycerol allyl ether
TDI-TMP 9 ~ 16 parts
Stopper 0.005 ~ 0.02 part
Vinylbenzene 20 ~ 30 parts
Catalyzer 0.01 ~ 0.3 part
The solids content of PE unsaturated polyester resin is 73+2%, and viscosity is 2000 ~ 3000CPS/25 DEG C;
Described TDI-TMP is that 1:1 is prepared from by toluene diisocyanate (TDI) and TriMethylolPropane(TMP) (TMP) according to mol ratio.
2. thick coated type unsaturated polyester based white primer according to claim 1, is characterized in that: dispersion agent is castor oil modified anionic carboxylic acid saline copolymer.
3. thick coated type unsaturated polyester based white primer according to claim 1, is characterized in that: PE tailored flour is foliated lamellar talcum powder.
4. thick coated type unsaturated polyester based white primer according to claim 1, is characterized in that: described solvent is vinylbenzene, vinyl acetic monomer or toluene.
5. thick coated type unsaturated polyester based white primer according to claim 1, is characterized in that: described flow agent is fluorin modified crylic acid fat flow agent, and described defoamer is that siccative is organosilicon polymer not containing organosilyl broken bubble polymers soln.
6. prepare a method for thick coated type unsaturated polyester based white primer as claimed in claim 1, it is characterized in that comprising the steps:
(1) PE unsaturated polyester resin, dispersion agent, defoamer and partial solvent are joined in stirring tank successively, under 400 ~ 800r/min speed conditions, stir 5 ~ 10 minutes;
(2) PE tailored flour, Rutile type Titanium Dioxide, organophilic clay, aerosil, coarse whiting, Zinc Stearate is added, under 800 ~ 1200r/min speed conditions, high-speed stirring dispersion 30 ~ 40 minutes;
(3) finally add siccative, flow agent and remaining solvent, under 400 ~ 600r/min speed conditions, stir 20 ~ 30 minutes, whole thick coated type unsaturated polyester based white primer can be completed;
Wherein, the preparation method of PE unsaturated polyester resin is:
1) in the four-hole boiling flask that thermometer, agitator and reflux condensing tube be housed, 1:1 drops into toluene diisocyanate (TDI) and TriMethylolPropane(TMP) (TMP) in molar ratio, adds DMF solvent, at N
2under protection, 55 ~ 65 DEG C of reaction 3 ~ 4h, discharging, product is designated as TDI-TMP;
2) take butyleneglycol, Tetra hydro Phthalic anhydride, dehydration glycerol allyl ether, TDI-TMP, catalyzer by formula, input is equipped with agitator, condenser, dropping liquid funnel and rare gas element and passes in the reactor of mouth;
3) N is passed into
2protection, be warming up to 160 ~ 180 DEG C of reactions, per half an hour surveys acid number once; When acid number reaches 100, then the MALEIC ANHYDRIDE adding formula ratio continues esterification to acid number and reaches 49 ~ 52 and be polycondensation terminal;
4) after polycondensation, moved in thinning tank by the polyester of polycondensation, be cooled to 90 DEG C, add stopper, vinylbenzene successively, cooling, stirs, and filters, namely obtains transparent unsaturated polyester resin.
7. the preparation method of thick coated type unsaturated polyester based white primer according to claim 6, is characterized in that: dispersion agent is castor oil modified anionic carboxylic acid saline copolymer.
8. the preparation method of thick coated type unsaturated polyester based white primer according to claim 6, is characterized in that: PE tailored flour is foliated lamellar talcum powder.
9. the preparation method of thick coated type unsaturated polyester based white primer according to claim 6, is characterized in that: described solvent is vinylbenzene, vinyl acetic monomer or toluene.
10. the preparation method of thick coated type unsaturated polyester based white primer according to claim 6, it is characterized in that: described flow agent is fluorin modified crylic acid fat flow agent, described defoamer is that siccative is organosilicon polymer not containing organosilyl broken bubble polymers soln.
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| CN104861837A (en) * | 2015-05-19 | 2015-08-26 | 成都纳硕科技有限公司 | Preparation method of powder coating containing talcum powder |
| CN104861839A (en) * | 2015-05-19 | 2015-08-26 | 成都纳硕科技有限公司 | Powder coating containing talc powder and capable of realizing film flatness |
| CN104861832A (en) * | 2015-05-19 | 2015-08-26 | 成都纳硕科技有限公司 | Photocuring powder coating |
| CN104893518A (en) * | 2015-05-28 | 2015-09-09 | 展辰涂料集团股份有限公司 | Medium density fiberboard undercoat |
| 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 |
| CN105969131A (en) * | 2016-06-21 | 2016-09-28 | 上海长润发涂料有限公司 | Fracture-preventing PE white finish paint |
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| CN104861839A (en) * | 2015-05-19 | 2015-08-26 | 成都纳硕科技有限公司 | Powder coating containing talc powder and capable of realizing film flatness |
| CN104861832A (en) * | 2015-05-19 | 2015-08-26 | 成都纳硕科技有限公司 | Photocuring powder coating |
| CN104893518A (en) * | 2015-05-28 | 2015-09-09 | 展辰涂料集团股份有限公司 | Medium density fiberboard undercoat |
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| 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 |
| CN105969131A (en) * | 2016-06-21 | 2016-09-28 | 上海长润发涂料有限公司 | Fracture-preventing PE white finish paint |
| CN109251640A (en) * | 2018-08-09 | 2019-01-22 | 中山市大涂料有限公司 | A kind of PE ordor removing based white primer and preparation method thereof |
| CN109666385A (en) * | 2019-01-10 | 2019-04-23 | 广东鸿昌化工有限公司 | A kind of unsaturated polyester (UP) cracking resistance based white primer and preparation method thereof |
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| CN115595015A (en) * | 2022-07-05 | 2023-01-13 | 佛山市儒林化工有限公司（Cn） | High-temperature-resistant ultra-bright extra-white ink and preparation method thereof |
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