CN101439936A - Glass paint based on lac resin, preparation and use thereof - Google Patents
Glass paint based on lac resin, preparation and use thereof Download PDFInfo
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- CN101439936A CN101439936A CNA2008102291858A CN200810229185A CN101439936A CN 101439936 A CN101439936 A CN 101439936A CN A2008102291858 A CNA2008102291858 A CN A2008102291858A CN 200810229185 A CN200810229185 A CN 200810229185A CN 101439936 A CN101439936 A CN 101439936A
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- glass
- sclerolac
- lacquer
- paint
- alcohol
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Abstract
The invention relates to a coating. A glass paint based on lac resin is a single-component paint, and a main film-forming substance is the lac resin or a composition of the lac resin and crosslinked resin which are mixed according to the weight ratio of not less than 1:1. The glass paint adopts the natural lac resin as the film-forming substance, improves the comprehensive utilization rate of renewable resources, and is an environment-friendly product. The glass paint can adopt ethanol as a solvent, so as to greatly reduce environmental pollution during construction and use. The glass paint has simple technique and simple and convenient operation due to adoption of single-component construction. When the glass paint is painted on the glass surface, the glass paint can be cured into a film after being roasted for 3 to 5 minutes at a temperature of between 130 and 150, and the generated paint film has strong adhesion, good water resistance, strong corrosion resistance and good flexibility and is hard.
Description
One, technical field:
The present invention relates to coating, especially for the glass lacquer of glass surface coating.
Two, background technology:
The glass lacquer mainly is used on the ornamental glass at present, raising along with people's living standard, pursuit to U.S. is stronger, the stained glass lacquer has satisfied the demand in market with its distinctive gorgeous colorful decorative effect, glass lacquer product should have good sticking power, corrosion resistance nature, high rigidity, snappiness, in addition, is mainly used in upholstery owing to decorate with stained glass, therefore require the relatively environmental protection of glass lacquer, little to indoor environmental pollution.The glass lacquer of selling in the market, its filmogen is mainly from petroleum chemicals, and solvent for use also mainly is a dimethylbenzene, and butanols etc. have certain toxic solvent.These solvents come out in process of production and can cause environmental pollution, remain in the paint film then indoor environment to be polluted.Along with the more and more strictness of domestic and international market to environmental requirement, the glass lacquer that this environmental-protecting performance is lower will be eliminated gradually, at above-mentioned requirements, drop into lot of manpower and material resources both at home and abroad and will have researched and developed, though certain achievement is arranged, weak point also is conspicuous.
Adopt epoxy modified acrylic resin as filmogen as CN101050259 disclosed " water-soluble acrylic resin as lacquer in use for glass and preparation ", improved to a certain extent that water soluble acrylic resin's water boiling resistance is poor, hardness is low and the problem of glass attachment power difference, it is epoxide modified that but resin adopts, and technology is comparatively complicated.
CN1031386A disclosed " polyolefin-type transparent colored glass coating " is though increasing aspect sticking power, hardness, the water tolerance, but because a large amount of methyl methacrylate that uses, hard monomers such as vinylbenzene, paint film is more crisp, occurs paint film limit portion easily during the cutting edging and comes off.In addition, this system uses deleterious organic amine as solidifying agent.The two-pack construction also makes technology become complicated.
CN1272517A disclosed " making of stained glass coating and color coating glass " toasts 15-20 minute ability film-forming down at 180-220 ℃, and its storing temperature is not only high but also storing time is long.Consider that stained glass production line drying condition was generally 130-150 ℃ of following 3-5 minute, this coating can't realize satisfying the mass-produced requirement of streamline.
CN1948200A disclosed " water colour transparent glass paint and preparation method thereof and application " adopts water-base resin, and cost is higher, and still need add the organic solvent butanols in the solvent.In addition, this product only can realize that performance was still not enough water-fast 24 hours.
Three, summary of the invention:
The objective of the invention is to overcome above-mentioned not enough problem, a kind of glass lacquer based on sclerolac is provided, low-temperature quick-dry and excellent property, the hardness of paint film height, sticking power is good, water tolerance is strong, good corrosion resistance, and is less to the less environmental pollution of human injury in construction and use; The present invention also provides its method for making in addition, and technology is simple to operation.
The technical scheme that the present invention is adopted for achieving the above object is: based on the glass of sclerolac lacquer, it coats with lacquer for single component, and main film forming substance is a sclerolac, or sclerolac and cross-linked resin are by the composition that is not less than the 1:1 weight ratio.
Described cross-linked resin is an aminoresin.
Described glass lacquer is prepared by following raw material solid weight part: sclerolac: 10-50 part, cross-linked resin: 0-30 part, tinting pigment: 1-10 part, pigment extender: 0-50 part, auxiliary agent 0-10 part, solvent: 20-80 part.
Described solvent is the composition of the water of the alcohol of 50-100% weight part and 0-50% weight part.
Described alcohol is the monohydroxy-alcohol that contains 1-4 carbon, as ethanol.
The method for making of glass lacquer of the present invention: at first will be dissolved in alcoholic acid sclerolac, solvent, tinting pigment and pigment extender and mix the back sand milling to fineness 25 μ m, add cross-linked resin then, stir and formed uniform colo(u)r coating in 10-15 minute afterwards, discharging gets the glass lacquer.
The application conditions of glass of the present invention lacquer is: after with the thinner that is fit to the glass lacquer being diluted to 30-60s (being coated with 4 glasss), be applied to glass surface after, at 150 ℃ of bakings 3-5 minute down, i.e. curable film-formings.Used thinner can be a water, or contains the monohydroxy-alcohol of 1-4 carbon, or contains the aqueous solution of the monohydroxy-alcohol of 1-4 carbon.
Basic mechanism of the present invention is: has functional groups such as free carboxyl, hydroxyl, ester group and aldehyde radical in the sclerolac simultaneously, makes resin have very strong chemical activity, and can the fast setting film forming.Sclerolac can be at self-crosslinking under the baking condition, if with ethanol as solvent, then the glass lacquer does not contain any hazardous and noxious substances, is real environmental protection glass lacquer.Also can add an amount of aminoresin as cross-linked resin, the paint film of generation is harder, water tolerance and erosion resistance are better.
The present invention has the following advantages with respect to prior art: sclerolac is an oozy purple natural resin behind the tachardia lacca absorption host tree resin, and it is a kind of natural resin that serves many purposes, and it has unique premium properties.The major ingredient of sclerolac is the mixture that a series of multi-hydroxy carboxy acids form, and these acid mostly are present in the lac with the form of lactone and lactide, and structure as shown in Figure 1.Sclerolac is soluble in alcohol or alkaline solution, its film hard, have good gloss and toughness, strong, antiacid, the lipotropism fat hydrocarbon solvent of surface adhesion Z-TEK of it and various material such as timber, glass, metal, paper and mica etc., moistureproof, antirust, oil resistant, electrical insulating property and thermoplastic property are good, to human body nontoxicity and pungency, therefore be a kind of natural resin that serves many purposes, its purposes spreads all over industrial sectors such as national defence, electrical equipment, coating, machinery, rubber, plastics, medicine.With the shellac coating of sclerolac preparation, easy to use, strong adhesion, rapidly dry, paint film is smooth, hard, and gloss is even.
Because sclerolac has the advantage of above-mentioned uniqueness, therefore be particularly suitable for being used for preparing the glass lacquer.Up to now, the Shang Weiyou report adopts natural sclerolac to prepare environment-friendly type glass lacquer.
It is filmogen that the present invention adopts natural sclerolac, has improved the comprehensive utilization to renewable resources, and is Green Product.Can adopt ethanol is solvent, has significantly reduced in construction and use the pollution of environment.Technology of the present invention is simple, and is easy and simple to handle, adopts the single component construction, and constructing operation is simple and convenient.Glass lacquer of the present invention is a main film forming substance with natural sclerolac, be applied to glass surface and have good decoration effect, the construction of glass lacquer is at glass surface, 130-150 ℃ is toasted 3-5 minute down is curable film-forming, the paint film adhesion that generates is strong, water-tolerant, and erosion resistance is strong, paint film is hard and snappiness good, and is less to the less environmental pollution of human injury in construction and use.
Four, embodiment:
In order to understand the present invention better, the invention will be further described below in conjunction with specific embodiment figure, but the scope of protection of present invention is not limited to the scope that embodiment represents.
Embodiment 1:
Preparatory stage before the preparation of glass lacquer:
At first take by weighing flake shellac resin 50kg and ethanol 50kg, pour in the container and constantly stir, till whole dissolvings, pour out then be stored in the cell therefor standby;
Take by weighing 75 kilograms of above-mentioned 50% sclerolacs, 11 kilograms of 60% the high imino-melamine resins of cross-linked resin then, 5 kilograms of tinting pigment iron oxide reds, 3 kilograms in pigment extender barium sulfate, 1 kilogram of talcum powder, 5 kilograms of etoh solvents are stand-by.
Glass lacquer preparatory phase
At first sclerolac, solvent, tinting pigment and pigment extender are mixed the back sand milling to fineness 25 μ m, add 11 parts of cross-linked resins then, stir and formed uniform colo(u)r coating afterwards in 10-15 minute, get the glass lacquer after the discharging.100 kilograms of the glass lacquer gross weights that makes, solids constituent content 53 ± 1%, viscosity: 120-160s (being coated with-4 glasss, 25 ℃).
The construction stage of glass lacquer:
Being diluted to viscosity with above-mentioned gained glass lacquer with alcohol solvent is that 30-60s (is coated with-4 glasss, 25 ℃), stir, showering is to the sheet glass of cleaning, toasting 3 minutes down at 150 ℃ is curable film-forming, obtain the high paint film of glossiness, paint film detected, reached the performance index shown in the table 1:
Table 1 performance index
| Sequence number | Test item | Standard-required | Objective result |
| 1 | Film thickness | Glass lacquer one deck | 20-25μm |
| 2 | Hardness | Pencil hardness | 4H |
| 3 | Sticking power | The grid test | 1 grade |
| 4 | Water tolerance | GB/T?1733-93 | There was not difference in 240 hours |
Embodiment 2:
Preparatory stage before the preparation of glass lacquer:
At first take by weighing flake shellac resin 50kg and ethanol 50kg, pour in the container and stirring constantly, till whole dissolvings, be stored in the cell therefor standby.
Take by weighing 50 kilograms of above-mentioned 50% sclerolacs then, 10 kilograms of 60% cross-linked resin butyl ether melamine resins, 4 kilograms of tinting pigments (carbon black), 10 kilograms in pigment extender barium sulfate, 10 kilograms in lime carbonate, 16 kilograms of etoh solvents are stand-by.
Glass lacquer preparatory phase
At first sclerolac, solvent, tinting pigment and pigment extender are mixed the back sand milling to fineness 25 μ m, add cross-linked resin then, form colo(u)r coating after mixing, discharging promptly gets the glass lacquer.100 kilograms of the glass lacquer gross weights that makes.Solids constituent content 55 ± 1%, viscosity: 110-150s (being coated with-4 glasss, 25 ℃).
The construction stage of glass lacquer:
Being diluted to viscosity with above-mentioned gained glass lacquer with 50% aqueous ethanolic solution is that 30-60s (is coated with-4 glasss, 25 ℃), spray on the clean sheet glass, toasting 5 minutes down at 150 ℃ is curable film-forming, obtained the high paint film of glossiness, paint film is detected, reached the performance index shown in the table 2: table 2 performance index
| Sequence number | Test item | Standard-required | Objective result |
| 1 | Film thickness | Glass lacquer one deck | 20-25μm |
| 2 | Hardness | Pencil hardness | 4H |
| 3 | Sticking power | The grid test | 1 grade |
| 4 | Water tolerance | GB/T1733-93 | There was not difference in 240 hours |
Embodiment 3:
Preparatory stage before the preparation of glass lacquer:
At first take by weighing flake shellac resin 50kg and ethanol 50kg, pour in the container and stirring constantly, till whole dissolvings, be stored in the cell therefor standby.
Take by weighing 80 kilograms of above-mentioned 50% sclerolacs then, 5 kilograms of tinting pigments (carbon black), 15 kilograms of etoh solvents are stand-by.
Glass lacquer preparatory phase
Stir sclerolac, solvent, tinting pigment afterwards sand milling to fineness promptly gets the glass lacquer below 25 μ m.100 kilograms of the glass lacquer gross weights that makes.Solids constituent content 45 ± 1%, viscosity: 120-160s (being coated with-4 glasss, 25 ℃);
The construction stage of glass lacquer:
Being diluted to viscosity with above-mentioned gained glass lacquer with alcohol solvent is 30-60s (being coated with-4 glasss, 25 ℃), showering or be sprayed on the clean sheet glass, toasting 5 minutes down at 150 ℃ is curable film-forming, obtain the high paint film of glossiness, paint film detected, reached the performance index shown in the table 3:
Table 3 performance index
| Sequence number | Test item | Standard-required | Objective result |
| 1 | Film thickness | Glass lacquer one deck | 20-25μm |
| 2 | Hardness | Pencil hardness | 4H |
| 3 | Sticking power | The grid test | 1 grade |
| 4 | Water tolerance | GB/T?1733-93 | There was not difference in 240 hours |
Sclerolac major ingredient and chemical structure:
The Aleuritic acid shelloic acid
When R=COOH, for shelloic acid when the R=COOH, be epilaccishelbolic acid
When R=CHO, for jalaric acid when the R=CHO, be laccijalaric acid
Work as R=CH
2During OH, be laksholic acid
CH
3(CH
2)
7CHOH(CH
2)
4COOH
Butolic acid.
Claims (8)
1, based on the glass of sclerolac lacquer, it is characterized in that: it coats with lacquer for single component, and main film forming substance is a sclerolac, or sclerolac and cross-linked resin are by the composition that is not less than the 1:1 weight ratio.
2, the glass lacquer based on sclerolac according to claim 1, it is characterized in that: described cross-linked resin is an aminoresin.
3, the glass lacquer based on sclerolac according to claim 1, it is characterized in that: the glass lacquer is prepared by following raw material solid weight part: sclerolac: 10-50 part, cross-linked resin: 0-30 part, tinting pigment: 1-10 part, pigment extender: 0-50 part, auxiliary agent 0-10 part, solvent: 20-80 part.
4, according to the arbitrary described glass lacquer based on sclerolac of claim 1-3, it is characterized in that: solvent is the composition of the water of the alcohol of 50-100% weight part and 0-50% weight part.
5, the glass lacquer based on sclerolac according to claim 4, it is characterized in that: alcohol is for containing the monohydroxy-alcohol of 1-4 carbon.
6, the glass lacquer based on sclerolac according to claim 5 is characterized in that: ethanol.
7, based on the method for making of the glass of sclerolac lacquer, it is characterized in that: at first will be dissolved in alcoholic acid sclerolac, solvent, tinting pigment and pigment extender and mix the back sand milling to fineness 25 μ m, add cross-linked resin then, stir and formed uniform colo(u)r coating in 10-15 minute afterwards, discharging gets the glass lacquer.
8, based on the application of the glass of sclerolac lacquer, it is characterized in that: with thinner the glass lacquer is diluted to 30-60s and (is coated with-4 glasss, 25 ℃) after, after being applied to glass surface, toasted 3-5 minute down at 150 ℃, i.e. curable film-forming, wherein thinner employing water, or contain the monohydroxy-alcohol of 1-4 carbon, or contain the aqueous solution of the monohydroxy-alcohol of 1-4 carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102291858A CN101439936A (en) | 2008-11-28 | 2008-11-28 | Glass paint based on lac resin, preparation and use thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102291858A CN101439936A (en) | 2008-11-28 | 2008-11-28 | Glass paint based on lac resin, preparation and use thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101439936A true CN101439936A (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008102291858A Pending CN101439936A (en) | 2008-11-28 | 2008-11-28 | Glass paint based on lac resin, preparation and use thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327730A (en) * | 2014-11-26 | 2015-02-04 | 江苏博腾新材料股份有限公司 | Durable insulating coating |
-
2008
- 2008-11-28 CN CNA2008102291858A patent/CN101439936A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327730A (en) * | 2014-11-26 | 2015-02-04 | 江苏博腾新材料股份有限公司 | Durable insulating coating |
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Application publication date: 20090527 |