CN105419507A - Sealing primer for woodenwares - Google Patents

Abstract

The invention discloses a sealing primer for woodenwares. The sealing primer for woodenwares is prepared from the following raw materials by weight: 70-80 parts of a hydroxy styrene acrylic emulsion, 0.1-0.3 part of a defoaming agent, 0.2-0.5 part of a wetting agent, 0.1-0.2 part of a first thickener, 0.1-0.3 part of a second thickener, and 10-15 parts of water. The sealing primer for woodenwares provided by the invention has the characteristics of quick drying, texture embossment resistance, and resistance to osmosis of tannic acid and other substances, and also has excellent bactericidal performance.

Description

Woodenware seal coat

Technical field

The present invention relates to a kind of coating, more particularly, it relates to a kind of woodenware seal coat.

Background technology

Water-borne wood coating take water as the coating of medium, timber has the characteristic of moisture absorption,, after timber is coated with aqueous coating, in timber, after the conduit moisture absorption such as xylogen, Mierocrystalline cellulose and hemicellulose, easily there is bulging tendons phenomenon in especially directly coating and the first priming paint of timber.Because timber itself is hydrophilic, and containing a large amount of hydroxyls in the molecular structure of the colored component Weibull such as Weibull wherein, thus better with the consistency of water, there is good wetting ability.At solvent based coating, Weibull is insoluble in the common solvent of solvent based coating, therefore does not almost affect solvent based coating.And in the application of water-borne coatings, in timber, the wetting ability of the colored component such as Weibull is the basic reason of water-borne coatings variable color.This just causes in coating use procedure, the materials such as the Weibull in timber, grease slowly can infiltrate film, very easily yellowing after causing drying varniss, variable color be aging, lose the ornamental and aesthetic property of original natural wood vein, therefore, develop a kind of outstanding aqueous wooden ware seal coat, this woodenware seal coat muscle of can not only preventing rising can also prevent the materials such as Weibull from carrying out infiltrating through film, and this is problem demanding prompt solution.

Summary of the invention

For the deficiency that prior art exists, the object of the present invention is to provide a kind of woodenware seal coat.This woodenware seal coat has the feature of rapid drying, the anti-penetration such as muscle and anti-Weibull that rises, but also has excellent bactericidal property.

For achieving the above object, the invention provides following technical scheme:

A kind of woodenware seal coat, the raw material being main ingredient by following parts by weight is prepared from:

By adopting above-mentioned technology, defoamer can reduce the surface tension of water, improve priming paint to the perviousness of woodenware, coordinate the feature that self particle diameter of hydroxybenzene acrylic emulsion is little again, enable priming paint infiltrate through wood substrates as early as possible instead of float over wood grain surfaces, thus play the effect of the materials such as closed Weibull.First thickening material and the second thickening material, as two kinds of thickening materials, can regulate the denseness of priming paint, and denseness then can affect the flowing of moisture in priming paint, thus weaken the absorption of timber to moisture, reach the object of preventing and treating the muscle that rises.Utilize influencing each other of multiple material to produce synergy, reach quick-drying effect, and rapid drying also just means that timber cannot absorb water, also just cannot reach the muscle that rises.The rapid osmotic of priming paint then can reach sealing effect, makes the materials such as Weibull cannot permeate and change the color of priming paint.

The raw material being main ingredient by following parts by weight is prepared from:

Described defoamer selects polydimethylsiloxane, polyoxyethylene polyoxypropylene glyceryl ether, polyether-modified silicon one wherein.

The one in sodium laurylsulfonate, polyoxyethylene nonylphenol ether selected by described wetting agent.

Described first thickening material is PUR62.

Described second thickening material is PUR40.

By adopting technique scheme, in these six kinds of components of para hydroxybenzene acrylic emulsion, defoamer, wetting agent, the first thickening material, the second thickening material and water, part does consumption screening, and part does kind screening, makes can produce better synergy each other.

The weight part also comprising sterilant is 0.1-0.2 part, and the structural formula of described sterilant is as shown in the formula shown in I:

By adopting technique scheme, adding sterilant in primers, playing sterilization effect.And this sterilant extracts and obtains, compared to other sterilant more Environmental Safety from the root of large-flowered skullcap.

A preparation method for woodenware seal coat, is characterized in that: be prepared in accordance with the following steps:

Step 1: according to weight part, drops into hydroxybenzene acrylic emulsion 70-80 part and water 10-15 part successively, and start 400-600 rev/min, stirs;

Step 2: according to weight part, then add defoamer 0.1-0.3 part and wetting agent 0.2-0.5 part, 800-1000 rev/min of speed high speed dispersion 10 minutes;

Step 3: according to weight part, then add first thickening material 0.1-0.2 part, at 400-600 rev/min of Rate Dispersion 10-15 minute;

Step 4: according to weight part, then add second thickening material 0.1-0.3 part, 600-800 rev/min of Rate Dispersion 5 minutes;

Step 5: according to weight part, finally adds sterilant 0.1-0.2 part, obtains woodenware seal coat at 600-800 rev/min of Rate Dispersion after 5 minutes.

By adopting technical scheme, the woodenware seal coat produced according to given production stage can enable the various materials in raw material give full play to respective performance, thus realizes the maximization of overall performance.

By adopting technique scheme, following points advantage of the present invention:

1. utilize influencing each other of multiple material to produce synergy, reach quick-drying effect, and rapid drying also just means that timber cannot absorb water, also just cannot reach the muscle that rises; The rapid osmotic of priming paint then can reach sealing effect, the materials such as Weibull cannot be permeated and change the color of priming paint;

2. defoamer can reduce the surface tension of water, improve priming paint to the perviousness of woodenware, coordinate the feature that self particle diameter of hydroxybenzene acrylic emulsion is little again, enable priming paint infiltrate through wood substrates as early as possible instead of float over wood grain surfaces, thus play the effect of the materials such as closed Weibull;

3. the first thickening material and the second thickening material are as two kinds of thickening materials, can regulate the denseness of priming paint, and denseness then can affect the flowing of moisture in priming paint, thus weaken the absorption of timber to moisture, reach the object of preventing and treating the muscle that rises;

4. defoamer, wetting agent and hydroxybenzene acrylic emulsion produce synergistic effect, can penetrate in the base material of timber as early as possible when constructing, and play the effect closing the materials such as Weibull further;

5. increase the sterilant extracted from the crude substance root of large-flowered skullcap, make priming paint have germicidal action and safety and environmental protection, can not secondary injury be caused.

Embodiment

If no special instructions, the reagent used in the embodiment of the present invention is all purchased from SigmaBiochemicalandOrganicCompoundsforResearchandDiagnos ticClinicalReagents company.

The preparation embodiment of formula I

Be raw material with the root of large-flowered skullcap, add 95% alcohol immersion after being smashed to pieces grinding and extract 3 times, each soak time is 24h, is merged by the extracting solution of 3 times, filters and obtain Radix Scutellariae extract after concentrating, wherein according to weight part, and ethanol: the root of large-flowered skullcap=2-4: 1.

Rear dry column-packing will be mixed with 200 order silica gel of the weight about 3 times for Radix Scutellariae extract after above-mentioned Radix Scutellariae extract acetone solution, then use according to volume ratio, sherwood oil: the petroleum ether-ethyl acetate solution that ethyl acetate is followed successively by 10: 1,8: 1,6: 1,4: 1,2: 1 compositions carries out gradient elution, being the elutriant than obtaining during petroleum ether-ethyl acetate eluant solution for 8: 1 by wherein volume, becoming the first elutriant; Above-mentioned first elutriant silica gel column chromatography is continued to be separated, with according to volume ratio, sherwood oil: the petroleum ether-ethyl acetate solution that ethyl acetate is followed successively by 15: 1,10: 1,8: 1,4: 1 carries out gradient elution, the elutriant obtained during the petroleum ether-ethyl acetate eluant solution being by wherein volume ratio 10: 1 is called the second elutriant; Above-mentioned second elutriant silica gel column chromatography is continued to be separated, with according to volume ratio, sherwood oil: ethyl acetate is followed successively by 20: 1,15: 1,10: 1,4: 1 and carries out gradient elution, and the elutriant obtained when wherein volume ratio is the petroleum ether-ethyl acetate wash-out of 15: 1 is called the 3rd elutriant.Namely formula I is obtained by after the 3rd elutriant desolvation drying obtained.

Formula I is yellow powder.

The following key structural feature peak listing the proton nmr spectra of formula I.

¹HNMR(500MHz，CDCl3，ppm)δ：8.07(s，4H)，7.48(s，8H)，7.31(s，4H)，6.65(s，9H)，6.55(s，2H)，6.38(s，4H)，6.12(d，J＝9.5Hz，8H)，5.84(s，4H)，4.94(s，4H)，3.83(s，12H).

Embodiment 1

Step 1: according to weight part, drops into hydroxybenzene acrylic emulsion 70 parts and 15 parts, water successively, starts shooting 600 revs/min, stir;

Step 2: according to weight part, then add polydimethylsiloxane 0.1 part and sodium laurylsulfonate 0.5 part, 1000 revs/min of speed high speed dispersion 10 minutes;

Step 3: according to weight part, then add PUR620.2 part, 600 revs/min of Rate Dispersion 15 minutes;

Step 4: according to weight part, then add PUR400.1 part, 650 revs/min of Rate Dispersion 5 minutes;

Step 5: according to weight part, finally adds 0.1 part, sterilant, obtains woodenware seal coat at 650 revs/min of Rate Dispersion after 5 minutes.

Embodiment 2

Step 1: according to weight part, drops into hydroxybenzene acrylic emulsion 72 parts and 14 parts, water successively, starts shooting 550 revs/min, stir;

Step 2: according to weight part, then add polyoxyethylene polyoxypropylene glyceryl ether 0.3 part and polyoxyethylene nonylphenol ether 0.4 part, 950 revs/min of speed high speed dispersion 10 minutes;

Step 3: according to weight part, then add PUR620.15 part, 450 revs/min of Rate Dispersion 12 minutes;

Step 4: according to weight part, then add PUR400.12 part, 750 revs/min of Rate Dispersion 5 minutes;

Step 5: according to weight part, finally adds 0.15 part, sterilant, obtains woodenware seal coat at 600 revs/min of Rate Dispersion after 5 minutes.

Embodiment 3

Step 1: according to weight part, drops into hydroxybenzene acrylic emulsion 75 parts and 13 parts, water successively, starts shooting 500 revs/min, stir;

Step 2: according to weight part, then add polyether-modified silicon 0.2 part and sodium laurylsulfonate 0.2 part, 800 revs/min of speed high speed dispersion 10 minutes;

Step 3: according to weight part, then add PUR620.1 part, 550 revs/min of Rate Dispersion 13 minutes;

Step 4: according to weight part, then add PUR400.18 part, 700 revs/min of Rate Dispersion 5 minutes;

Step 5: according to weight part, finally adds 0.18 part, sterilant, obtains woodenware seal coat at 750 revs/min of Rate Dispersion after 5 minutes.

Embodiment 4

Step 1: according to weight part, drops into hydroxybenzene acrylic emulsion 80 parts and 12 parts, water successively, starts shooting 450 revs/min, stir;

Step 2: according to weight part, then add polydimethylsiloxane 0.2 part and polyoxyethylene nonylphenol ether 0.3 part, 850 revs/min of speed high speed dispersion 10 minutes;

Step 3: according to weight part, then add PUR620.12 part, 500 revs/min of Rate Dispersion 11 minutes;

Step 4: according to weight part, then add PUR400.15 part, 800 revs/min of Rate Dispersion 5 minutes;

Step 5: according to weight part, finally adds 0.12 part, sterilant, obtains woodenware seal coat at 700 revs/min of Rate Dispersion after 5 minutes.

Embodiment 5

Step 1: according to weight part, drops into hydroxybenzene acrylic emulsion 77 parts and 11 parts, water successively, starts shooting 400 revs/min, stir;

Step 2: according to weight part, then add polyoxyethylene polyoxypropylene glyceryl ether 0.3 part and sodium laurylsulfonate 0.4 part, 900 revs/min of speed high speed dispersion 10 minutes;

Step 3: according to weight part, then add PUR620.18 part, 400 revs/min of Rate Dispersion 10 minutes;

Step 4: according to weight part, then add PUR400.2 part, 600 revs/min of Rate Dispersion 5 minutes;

Step 5: according to weight part, finally adds 0.2 part, sterilant, obtains woodenware seal coat at 800 revs/min of Rate Dispersion after 5 minutes.

Experiment one: according to weight ratio, hydroxybenzene acrylic emulsion: solidifying agent isocyanide ester=10: 1, in the woodenware seal coat prepared according to embodiment 1-5, add solidifying agent isocyanide ester allocate, choose the plank of walnut material, separate the plank of 5 pieces of 10cm*10cm sizes, on every block plank respectively simultaneously and equivalent smear and carry out by the woodenware seal coat prepared according to embodiment 1-5 and solidifying agent isocyanide ester the priming paint allocated, record the time from stopping smearing required for priming paint to priming paint complete drying.

Experiment two: on the basis of experiment one, according to GB11186.1, the whiteness chromascope that uses model to be YT-48A measures to be smeared the whiteness of carrying out 5 pieces of planks of the priming paint allocated by the woodenware seal coat prepared according to embodiment 1-5 and solidifying agent isocyanide ester and to go forward side by side line item.

Experiment three: according to the operation of laboratory one with experiment two, only smear the priming paint allocated by the woodenware seal coat prepared according to embodiment 3 and solidifying agent isocyanide ester, the plank of walnut material being changed into oak, polyvinyl chloride, these three kinds of materials of natural bamboo, recording the time from stopping smearing required for priming paint to priming paint complete drying and whiteness.

Implement four: be placed on by intestinal bacteria in LB substratum and cultivate, dispersion concentration is 80cfu.mL ^-1, bacterium liquid is divided into 5 parts, records colibacillary starting point concentration C1, in every part of bacterium liquid, add the formula I of equivalent, after 6h, measure colibacillary concentration C 2, and according to formulae discovery concentration decrement.The concentration decrement obtained 5 parts is averaged and record, then gets pneumobacillus, Bacillus subtilus and streptococcus aureus and repeat colibacillary experiment.

Formula: concentration decrement=(C1-C2)/C1

Table 1 walnut material table time of drying

	Time of drying/minute
		Embodiment 1	4
Embodiment 2	5
		Embodiment 3	4
Embodiment 4	5
		Embodiment 5	6

Table 2 walnut whiteness change list

	Whiteness before closing	Whiteness after closing
			Embodiment 1	65	95
Embodiment 2	65	94
			Embodiment 3	65	96
Embodiment 4	65	95
			Embodiment 5	65	96

The time of drying of the plank of four kinds of materials of the priming paint that table 3 is allocated by the woodenware seal coat prepared according to embodiment 3 and solidifying agent isocyanide ester and whiteness change list

	Time of drying/minute	Whiteness before closing	Whiteness after closing
				Walnut	4	65	96
Oak	8	60	85
				Polyvinyl chloride	7	70	90
Natural bamboo	6	85	95

Table 4 bacterial concentration decrement table

	Concentration decrement/%
		Intestinal bacteria	95
Pneumobacillus	94
		Bacillus subtilus	93
Streptococcus aureus	96

As can be seen from table 1 and 2, after allocating with solidifying agent isocyanide ester, woodenware seal coat of the present invention maintains about 5 minutes the time of drying in walnut material, really accomplish rapid drying, and also can find out in whiteness change list, after smearing the priming paint allocated by woodenware seal coat of the present invention and solidifying agent isocyanide ester, the whiteness of plank is significantly improved and does not impact plank whiteness because of penetration such as Weibull.So woodenware seal coat of the present invention to have time of drying short, the feature good to material sealing effects such as Weibull.And time of drying is short, well also mean that the muscle that rises of plank is effectively controlled to material sealing effects such as Weibull simultaneously, namely woodenware seal coat of the present invention also has the effect of the anti-muscle that rises.

As can be seen from Table 3, woodenware seal coat of the present invention has the feature of short, good to material sealing effects such as Weibull, the anti-muscle Be very effective that rises significant time of drying when being not only applied on the plank of walnut material, have beneficial effect in various degree when being applied on the multiple sheet materials such as oak, polyvinyl chloride and natural bamboo equally.

As can be seen from Table 4, the formula I that the present invention adopts all has good germ resistance to these 4 bacteriums of intestinal bacteria, pneumobacillus, Bacillus subtilus and streptococcus aureus.This also just means that woodenware seal coat of the present invention has good germ resistance simultaneously.

Comparative example 1

Select embodiment 1 in documents 201310538023.3 as a comparison case 1.

1, ACRYLIC EMULSION Joncry95 is poured in the first container, under 750r/min mixing speed condition, drip vinyltriethoxysilane and stir 8min;

2, nano silicon is added, rotating speed 750r/min dispersed with stirring 30min;

3, TEXANOL and DPNB is poured in second container, add TEG0902W, EFKA3580, PUR40 successively, stir or rock evenly and slowly add the first container;

4, add AMP-95 again and the pH value of liquid in it is adjusted to 7 by primary ammonium phosphate, continue to disperse 30min under the mixing speed of 650r/min.Surplus adds deionized water and adjusts its viscosity;

5, filter and package---namely obtain high-performance water-based wooden ware sealing priming paint proposed by the invention.

Plank material selection walnut, bacterium selects intestinal bacteria, measures according to experiment one, experiment two and experiment four embodiment 3 and comparative example.

Table 5

	Time of drying/minute	Whiteness before closing	Whiteness after closing	Concentration decrement
					Embodiment 3	4	65	96	95％
Comparative example 1	20	65	75	10％

Can obviously find out from table 5, compared to comparative example, woodenware seal coat of the present invention all has better effect in time of drying, the sealing effect to materials such as Weibull and the germ resistance to bacterium.

Three kinds of changes are taken turns doing, respectively as comparative example 2, comparative example 3, comparative example 4 to the experiment of embodiment 3.

Comparative example 2: hydroxybenzene acrylic emulsion changes benzene emulsion into, and all the other remain unchanged.

Comparative example 3: change hydroxybenzene acrylic emulsion into styrene emulsion, all the other remain unchanged.

Comparative example 4: do not add solidifying agent, all the other remain unchanged.

Embodiment 3 and comparative example 2,3,4 are all applied on walnut, measure according to experiment one and experiment two.

Table 6

	Time of drying/minute	Whiteness before closing	Whiteness after closing
				Embodiment 3	4	65	96
Comparative example 2	3.5	65	95
				Comparative example 3	4.5	65	95
Comparative example 4	4	65	94

As can be seen from Table 6, embodiment 3 and comparative example 2,3,4 are in time of drying, have close effect to closing etc. of the materials such as Weibull, and time of drying, the material sealing effects such as Weibull to be had an impact to the muscle that rises of plank simultaneously, therefore embodiment 3 and comparative example 2,3,4 also have close effect in the anti-muscle that rises.Therefore can think component outside hydroxyl-removal benzene emulsion provided by the invention and solidifying agent and corresponding proportioning for single-component priming paint or two component priming paint, for vinylbenzene whether through modification and for benzene emulsion, whether there is hydroxyl etc. all there is the identical or close anti-muscle effect that rises, and can not whether modification and benzene emulsion have hydroxyl and produce larger impact because of whether adding solidifying agent, vinylbenzene.

The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (8)

1. a woodenware seal coat, is characterized in that: the raw material being main ingredient by following parts by weight is prepared from:

2. woodenware seal coat according to claim 1, is characterized in that: the raw material being main ingredient by following parts by weight is prepared from:

3. woodenware seal coat according to claim 1, is characterized in that: described defoamer selects polydimethylsiloxane, polyoxyethylene polyoxypropylene glyceryl ether, polyether-modified silicon one wherein.

4. woodenware seal coat according to claim 1, is characterized in that: the one in sodium laurylsulfonate, polyoxyethylene nonylphenol ether selected by described wetting agent.

5. woodenware seal coat according to claim 1, is characterized in that: described first thickening material is PUR62.

6. woodenware seal coat according to claim 1, is characterized in that: described second thickening material is PUR40.

7. woodenware seal coat according to claim 1, is characterized in that: the weight part also comprising sterilant is 0.1-0.2 part, and the structural formula of described sterilant is as shown in the formula shown in I:

8. a preparation method for woodenware seal coat as claimed in claim 7, is characterized in that: be prepared in accordance with the following steps:

Step 1: according to weight part, drops into hydroxybenzene acrylic emulsion 70-80 part and water 10-15 part successively, and start 400-600 rev/min, stirs;

Step 2: according to weight part, then add defoamer 0.1-0.3 part and wetting agent 0.2-0.5 part, 800-1000 rev/min of speed high speed dispersion 10 minutes;

Step 3: according to weight part, then add first thickening material 0.1-0.2 part, at 400-600 rev/min of Rate Dispersion 10-15 minute;

Step 4: according to weight part, then add second thickening material 0.1-0.3 part, 600-800 rev/min of Rate Dispersion 5 minutes;

Step 5: according to weight part, finally adds sterilant 0.1-0.2 part, obtains woodenware seal coat at 600-800 rev/min of Rate Dispersion after 5 minutes.