CN115873452A - Mildew-proof antibacterial water-based color paste and preparation method thereof - Google Patents
Mildew-proof antibacterial water-based color paste and preparation method thereof Download PDFInfo
- Publication number
- CN115873452A CN115873452A CN202211425453.XA CN202211425453A CN115873452A CN 115873452 A CN115873452 A CN 115873452A CN 202211425453 A CN202211425453 A CN 202211425453A CN 115873452 A CN115873452 A CN 115873452A
- Authority
- CN
- China
- Prior art keywords
- parts
- mildew
- chitosan
- modified
- color paste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims description 11
- 229920001661 Chitosan Polymers 0.000 claims abstract description 70
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- 150000007524 organic acids Chemical class 0.000 claims abstract description 18
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 18
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 17
- 239000008367 deionised water Substances 0.000 claims abstract description 14
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 30
- 239000011259 mixed solution Substances 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 17
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 16
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- -1 polydimethylsiloxane Polymers 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 235000005979 Citrus limon Nutrition 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- 125000003944 tolyl group Chemical group 0.000 claims description 3
- 244000248349 Citrus limon Species 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 7
- 238000005457 optimization Methods 0.000 abstract description 2
- 239000003242 anti bacterial agent Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000813 microbial effect Effects 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000843 anti-fungal effect Effects 0.000 description 4
- 229940121375 antifungal agent Drugs 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004471 Glycine Substances 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005614 potassium polyacrylate Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010092 rubber production Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229940043810 zinc pyrithione Drugs 0.000 description 1
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical compound [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
The invention discloses a mildew-proof antibacterial water-based color paste which comprises the following components in parts by weight: 45-60 parts of modified toner, 2-10 parts of organic acid, 30-50 parts of modified chitosan, 0.1-5 parts of thickening agent, 0.1-5 parts of defoaming agent and 12-28 parts of deionized water; wherein the modified toner is chitosan modified toner; the modified chitosan is quaternary ammonium salt modified chitosan. The mildew-proof antibacterial water-based color paste provided by the invention is stable in low-temperature storage and has mildew-proof antibacterial performance through optimization of color paste components.
Description
Technical Field
The invention relates to the technical field of color paste production, in particular to mildew-proof antibacterial water-based color paste and a preparation method thereof.
Background
The silica gel and the products thereof are widely applied to building engineering, keys of electronic appliances, automobile protective covers, nipples of babies, rubber tubes, masks and the like, generally, different colors are given to the silica gel and the products thereof according to the requirements of the functions and application characteristics of the products, and the main functional raw materials giving the required colors are color pastes. In the current industrial production, the raw rubber or the silicone oil is directly mixed with the toner to be kneaded, mixed and dispersed at high speed to color the silica gel and the silica gel products, but the toner is dispersed unevenly and is easy to delaminate and precipitate, and particularly, the plasticizer for domestic rubber production mainly adopts white oil or methyl silicone oil, but the toner contains polar groups such as hydroxyl, carbonyl, amino or cyano, and the dispersibility and compatibility of the toner with nonpolar white oil or methyl silicone oil are poor, and the problems are more prominent under the low-temperature condition. Therefore, the dispersion and compatibility of the color paste are improved, the negative influence of silica gel coloring on the application of the color paste is reduced or avoided, and the development and research of functional color paste are very necessary.
In addition, aiming at the special application scenes such as the nipple of the baby, the anti-mildew and anti-bacterial functions are required to be endowed. In general, the antifungal and antibacterial effects can be achieved by adding an inorganic antifungal antibacterial agent, an organic antifungal antibacterial agent, or the like, but such an external addition of an antifungal antibacterial agent also has problems of poor compatibility and poor chemical stability. Therefore, how to improve the low-temperature storage stability and the stable mildew-proof antibacterial performance of the color paste is a problem to be solved urgently.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the mildew-proof antibacterial water-based color paste, which is stable in low-temperature storage and has mildew-proof antibacterial performance through optimization of color paste components.
The invention also aims to provide a preparation method of the mildew-proof antibacterial water-based color paste.
In order to realize the purpose, the invention adopts the following technical scheme:
the mildew-proof antibacterial water-based color paste comprises the following components in parts by weight: 45-60 parts of modified toner, 2-10 parts of organic acid, 30-50 parts of modified chitosan, 0.1-5 parts of thickening agent, 0.1-5 parts of defoaming agent and 12-28 parts of deionized water;
wherein the modified toner is chitosan modified toner;
the modified chitosan is quaternary ammonium salt modified chitosan and comprises a general structure shown in a formula (I):
wherein R is 1 、R 2 、R 3 Each independently selected from alkyl, arylAny one or combination of radicals or H, and at most one is H.
In a preferred embodiment, the mildew-proof antibacterial water-based color paste comprises the following components in parts by weight: 50-55 parts of modified toner, 5-8 parts of organic acid, 35-45 parts of modified chitosan, 1-4 parts of thickening agent, 1-4 parts of defoaming agent and 15-25 parts of deionized water;
wherein the modified toner is chitosan modified toner;
the modified chitosan is quaternary ammonium salt modified chitosan and comprises a general structure shown in a formula (I):
wherein R is 1 、R 2 、R 3 Each independently selected from any one or combination of alkyl, aryl or H, and no more than one is H.
In a specific embodiment, said R is 1 、R 2 、R 3 The alkyl group has not more than 5 carbon atoms, and is preferably a methyl group, an ethyl group or a propyl group.
In a specific embodiment, said R is 1 、R 2 、R 3 The aryl group in (1) is phenyl or tolyl.
In a preferred embodiment, the modified chitosan is a water-fast-dissolving cationic chitosan quaternary ammonium salt.
In a specific embodiment, the modified toner is a chitosan modified toner.
In a specific embodiment, the chitosan modified toner is modified by the following steps: adding chitosan into proper amount of organic acid to dissolve chitosan completely, adding color powder into the mixture, stirring to react for 0.1-4 hr, filtering and drying to obtain the modified chitosan color powder.
In a specific embodiment, the chitosan is added in an amount of 30% to 50% by mass of the toner.
In a specific embodiment, the toner is selected from any one of carbon powder, titanium dioxide powder, iron oxide toner or lemon yellow toner.
In a specific embodiment, the organic acid is selected from one or more of malonic acid, formic acid, acetic acid, succinic acid, citric acid, glycine; acetic acid or malonic acid is preferred.
In a particular embodiment, the thickener is a polyacrylate salt, preferably sodium polyacrylate.
In a particular embodiment, the defoamer is polydimethylsiloxane.
In another aspect of the present invention, the preparation method of the mildew-proof antibacterial water-based color paste comprises the following steps:
1) Uniformly mixing organic acid and modified chitosan to obtain a mixed solution A, and uniformly mixing a thickening agent, a defoaming agent and deionized water to obtain a mixed solution B;
2) And slowly adding the modified toner into the mixed solution A while stirring, and then stirring and adding the mixed solution B to obtain the mildew-proof antibacterial water-based color paste.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1) The color paste system adopts chitosan to modify the color powder, hydrogen bonds are formed by hydroxyl groups of the chitosan and polar groups on the surface of the color powder to graft chitosan macromolecules on the surface of the color powder, organic acid and the modified chitosan are used for dispersing the modified color powder, and the mutual agglomeration of the color powder is avoided through the steric hindrance effect of a spatial network of chitosan molecules, so that the color paste with uniform dispersion and stable low-temperature storage is obtained.
2) The quaternary ammonium salt modified chitosan is adopted in the color paste system, so that the color paste system plays a role of a dispersing agent, and simultaneously, the prepared color paste has a mildew-proof antibacterial function by utilizing the antibacterial function of the quaternary ammonium salt.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The preparation method of the mildew-proof antibacterial water-based color paste comprises the following steps:
1) Uniformly mixing organic acid and modified chitosan to obtain a mixed solution A, and uniformly mixing a thickening agent, a defoaming agent and deionized water to obtain a mixed solution B;
2) And slowly adding the modified toner into the mixed solution A while stirring, and then stirring and adding the mixed solution B to obtain the mildew-proof antibacterial water-based color paste.
Wherein the organic acid is selected from one or more of malonic acid, formic acid, acetic acid, succinic acid, citric acid and glycine; preferably acetic acid or malonic acid.
The modified chitosan is quaternary ammonium salt modified chitosan and comprises a general formula structure shown in a formula (I):
wherein R is 1 、R 2 、R 3 Each independently selected from any one or combination of alkyl, aryl or H, and no more than one is H. The number of carbon atoms of the alkyl group is preferably not more than 5, such as methyl, ethyl or propyl, but not limited thereto; the aryl group is, for example, phenyl or tolyl, but is not limited thereto.
Preferably, the modified chitosan is water-soluble cationic chitosan quaternary ammonium salt which has good water solubility, strong hygroscopicity, good compatibility, biodegradability, good antibacterial property, moisture absorption and retention property, flocculation property, antistatic property and the like, and the antibacterial property of the modified chitosan is superior to that of chitosan and other chitosan derivatives.
The thickener is preferably a polyacrylate such as sodium polyacrylate, potassium polyacrylate, etc., but is not limited thereto, and may be a thickener commonly used in the art.
The defoaming agent is polydimethylsiloxane, but is not limited thereto, and may be a defoaming agent commonly used in the art.
The modified toner is chitosan modified toner, wherein the toner is selected from any one of carbon powder, titanium dioxide, iron oxide toner or lemon yellow toner. The modification steps of the chitosan modified toner are as follows: adding chitosan into proper amount of organic acid to dissolve chitosan completely, adding color powder into the mixture, stirring to react for 0.1-4 hr, filtering and drying to obtain the modified chitosan color powder. Wherein, the adding amount of the chitosan is 30-50% of the mass of the toner, such as but not limited to 30%, 35%, 40%, 45% and 50%.
In the preparation method, the components are mixed according to the following parts by weight: 45 to 60 parts of modified toner, 2 to 10 parts of organic acid, 30 to 50 parts of modified chitosan, 0.1 to 5 parts of thickening agent, 0.1 to 5 parts of defoaming agent and 12 to 28 parts of deionized water.
In a preferred embodiment, in the above preparation method, the components are mixed in the following parts by weight: 50-55 parts of modified toner, 5-8 parts of organic acid, 35-45 parts of modified chitosan, 1-4 parts of thickening agent, 1-4 parts of defoaming agent and 15-25 parts of deionized water.
The invention is further illustrated, but not limited, by the following more specific examples.
The main raw materials are as follows:
toner steel climbing titanium dioxide R258;
the quaternary ammonium salt modified chitosan is chitosan quaternary ammonium salt purchased from Michelin biochemical technology;
thickener polyacrylate, manufactured by clariant corporation, model PL20;
the defoamer polydimethylsiloxane was purchased from Shenzhen, star Kayue Biotech, inc.;
organic acids such as acetic acid, malonic acid, etc. are available from alatin.
And (4) performance testing:
the low-temperature stability of the color paste is tested according to the following method:
the sample was filled in a glass container (height: about 130mm, diameter: about 112mm, wall thickness: about 0.23mm to 0.27 mm), filled approximately, sealed, placed in a low temperature chamber at (-5. + -. 2) ° C, taken out after 18 hours, and left to stand at room temperature for 6 hours. After repeating the above three times, the container was opened, the sample was sufficiently scripted, and the presence or absence of the hard lump, the aggregation and the separation were observed, and if not, it was regarded as "not deteriorating".
The mildew-proof antibacterial performance is tested by adopting the following method:
adding a certain amount of test microorganism suspension into a product added with the mildew-proof antibacterial agent, uniformly mixing, observing for a certain time at room temperature, and regularly observing the propagation condition of microorganisms in a sample, thereby judging whether the added mildew-proof antibacterial agent can effectively solve the mildew-proof corrosion problem of the product. If no special requirement exists, the laboratory conventional test bacteria (mixed bacteria or mixed mold or mixed yeast) are used, and 1mL of bacterial suspension is added into each 100g of sample, and the bacterial content is 108cfu/mL. The examination time was 21d, and the examination was performed every 7d, and in general, the 7d, 14d, and 21d were examined by streaking culture, and the presence or absence or quantity of the bacteria was indicated by "0 to 4". Score 0 indicates no growth or complete inhibition of microbial growth; score 1 indicates very little microbial growth, score 2 indicates little microbial growth, score 3 indicates moderate microbial growth, and score 4 indicates severe microbial growth. The less bacteria in the sample, the better, the mildew-proof antibacterial agent plays a role; if the bacteria in the sample are more and more, the added mildewproof antibacterial agent and the formula thereof have poor or no effect.
Preparation example preparation of modified toner
Adding 400g of chitosan into 100mL of acetic acid to completely dissolve the chitosan, then adding 1000g of toner into the acetic acid, stirring the mixture to react for 2 hours, filtering the mixture, and drying the mixture at 60 ℃ for 4 hours to obtain the chitosan modified toner.
Example 1
1) Uniformly mixing 5g of acetic acid and 35g of quaternary ammonium salt modified chitosan to obtain a mixed solution A, and uniformly mixing 0.2g of thickening agent, 0.15g of defoaming agent and 15g of deionized water to obtain a mixed solution B;
2) Firstly, 45g of modified toner is slowly added into the mixed solution A while stirring, and then the mixed solution B is added while stirring to obtain the mildew-proof antibacterial water-based color paste.
Example 2
1) Uniformly mixing 10g of citric acid and 50g of quaternary ammonium salt modified chitosan to obtain a mixed solution A, and uniformly mixing 5g of thickening agent, 5g of defoaming agent and 28g of deionized water to obtain a mixed solution B;
2) And firstly, slowly adding 60g of modified toner into the mixed solution A while stirring, and then stirring and adding the mixed solution B to obtain the mildew-proof antibacterial water-based color paste.
Example 3
1) Uniformly mixing 8g of malonic acid and 40g of quaternary ammonium salt modified chitosan to obtain a mixed solution A, and uniformly mixing 2g of thickening agent, 2g of defoaming agent and 20g of deionized water to obtain a mixed solution B;
2) And (3) slowly adding 50g of modified toner into the mixed solution A while stirring, and then stirring and adding the mixed solution B to obtain the mildew-proof antibacterial water-based color paste.
Example 4
1) Uniformly mixing 2g of glycine acid and 30g of quaternary ammonium salt modified chitosan to obtain a mixed solution A, and uniformly mixing 0.2g of thickening agent, 0.15g of defoaming agent and 12g of deionized water to obtain a mixed solution B;
2) Firstly, 45g of modified toner is slowly added into the mixed solution A while stirring, and then the mixed solution B is added while stirring to obtain the mildew-proof antibacterial water-based color paste.
Comparative example 1
Compared with the example 1, the water-based color paste is prepared only by adding no quaternary ammonium salt modified chitosan under the same other conditions.
Comparative example 2
Compared with the embodiment 1, the water-based color paste is prepared by adopting the toner to replace the modified toner and the other conditions are completely the same.
Comparative example 3
Compared with the embodiment 1, the water-based color paste is prepared by using the zinc pyrithione mildew-proof antibacterial agent to replace the chitosan modified color paste under the same other conditions.
Comparative example 4
In comparison with example 1, the aqueous color paste was obtained by directly mixing all the components together without a two-step mixing step.
The color paste prepared by the comparative example of the above embodiment was subjected to the test of low-temperature storage stability and mildew-proof antibacterial property according to the test method of low-temperature storage stability and mildew-proof antibacterial property, and the test results are shown in table 1.
TABLE 1 Performance test data for the examples and comparative examples
Remarking: one wheel in 7 days
And (3) scoring: 0: does not grow or completely inhibit the growth of microorganisms
1: very little microbial growth
2: growth of a small number of microorganisms
3: moderate growth of microorganisms
4: severe growth of microorganisms
As can be seen from the above table, the mildew-proof antibacterial water-based color paste provided by the invention is prepared by optimizing the components of the color paste, particularly adding the chitosan modified toner, the quaternary ammonium salt modified chitosan and the like, and has good low-temperature storage stability and mildew-proof antibacterial performance. .
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. The mildew-proof antibacterial water-based color paste is characterized by comprising the following components in parts by weight: 45-60 parts of modified toner, 2-10 parts of organic acid, 30-50 parts of modified chitosan, 0.1-5 parts of thickening agent, 0.1-5 parts of defoaming agent and 12-28 parts of deionized water;
wherein the modified toner is chitosan modified toner;
the modified chitosan is quaternary ammonium salt modified chitosan and comprises a general structure shown in a formula (I):
wherein R is 1 、R 2 、R 3 Each independently selected from any one or combination of alkyl, aryl or H, and no more than one is H.
2. The mildew-proof antibacterial water-based color paste according to claim 1, which is characterized by comprising the following components in parts by weight: 50-55 parts of modified toner, 5-8 parts of organic acid, 35-45 parts of modified chitosan, 1-4 parts of thickening agent, 1-4 parts of defoaming agent and 15-25 parts of deionized water.
3. The mildew-proof antibacterial water-based color paste according to claim 1 or 2, wherein R is 1 、R 2 、R 3 The alkyl group has not more than 5 carbon atoms, and is preferably a methyl group, an ethyl group or a propyl group.
4. The mildew-proof antibacterial water-based color paste according to claim 1 or 2, wherein R is 1 、R 2 、R 3 The aryl group in (1) is phenyl or tolyl.
5. The mildew-proof antibacterial water-based color paste according to claim 1 or 2, wherein the modified chitosan is water-soluble cationic chitosan quaternary ammonium salt; preferably, the modified toner is chitosan modified toner.
6. The mildew-proof antibacterial water-based color paste according to claim 5, wherein the chitosan modified toner is modified by the following steps: adding chitosan into proper amount of organic acid to dissolve chitosan completely, adding color powder into the mixture, stirring to react for 0.1-4 hr, filtering and drying to obtain the modified chitosan color powder.
7. The mildew-proof antibacterial water-based color paste according to claim 6, wherein the addition amount of the chitosan is 30-50% of the mass of the toner.
8. The mildew-proof antibacterial water-based color paste as claimed in claim 6, wherein the toner is selected from any one of carbon powder, titanium dioxide, iron oxide toner or lemon yellow toner.
9. The mildew-proof antibacterial water-based color paste according to claim 1 or 2, wherein the organic acid is selected from one or more of malonic acid, formic acid, acetic acid, succinic acid, citric acid and glycine; acetic acid or malonic acid is preferred.
10. The mildew-proof antibacterial water-based color paste according to claim 1 or 2, wherein the thickener is polyacrylate, preferably sodium polyacrylate.
11. The mildew-proof antibacterial water-based color paste according to claim 1 or 2, wherein the defoaming agent is polydimethylsiloxane.
12. The preparation method of the mildew-proof antibacterial water-based color paste as claimed in any one of claims 1 to 11, which is characterized by comprising the following steps:
1) Uniformly mixing organic acid and modified chitosan to obtain a mixed solution A, and uniformly mixing a thickening agent, a defoaming agent and deionized water to obtain a mixed solution B;
2) And slowly adding the modified toner into the mixed solution A while stirring, and then stirring and adding the mixed solution B to obtain the mildew-proof antibacterial water-based color paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211425453.XA CN115873452A (en) | 2022-11-15 | 2022-11-15 | Mildew-proof antibacterial water-based color paste and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211425453.XA CN115873452A (en) | 2022-11-15 | 2022-11-15 | Mildew-proof antibacterial water-based color paste and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115873452A true CN115873452A (en) | 2023-03-31 |
Family
ID=85759910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211425453.XA Pending CN115873452A (en) | 2022-11-15 | 2022-11-15 | Mildew-proof antibacterial water-based color paste and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115873452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116396641A (en) * | 2023-04-06 | 2023-07-07 | 浙江纳美新材料股份有限公司 | Water-based cationic color paste and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470167A (en) * | 2003-06-17 | 2004-01-28 | 中国海洋大学 | Preparatino method of low-molecular chitosar quaternary ammonium salt complex iodine clear venom |
| CN105200856A (en) * | 2015-08-09 | 2015-12-30 | 浙江理工大学 | Chitosan/titanium dioxide nano-composite antibacterial coating preparation method |
| CN109135433A (en) * | 2018-07-12 | 2019-01-04 | 河北晨阳工贸集团有限公司 | A kind of antibacterial mill base and preparation method thereof |
| CN109288698A (en) * | 2018-11-19 | 2019-02-01 | 巩义市宏盛稀有金属有限公司 | A kind of compound hand cleanser and preparation method thereof for industrial duplicate removal greasy dirt |
| CN113214579A (en) * | 2021-05-28 | 2021-08-06 | 山东宜居新材料科技有限公司 | Antibacterial ecological floor and preparation method thereof |
-
2022
- 2022-11-15 CN CN202211425453.XA patent/CN115873452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470167A (en) * | 2003-06-17 | 2004-01-28 | 中国海洋大学 | Preparatino method of low-molecular chitosar quaternary ammonium salt complex iodine clear venom |
| CN105200856A (en) * | 2015-08-09 | 2015-12-30 | 浙江理工大学 | Chitosan/titanium dioxide nano-composite antibacterial coating preparation method |
| CN109135433A (en) * | 2018-07-12 | 2019-01-04 | 河北晨阳工贸集团有限公司 | A kind of antibacterial mill base and preparation method thereof |
| CN109288698A (en) * | 2018-11-19 | 2019-02-01 | 巩义市宏盛稀有金属有限公司 | A kind of compound hand cleanser and preparation method thereof for industrial duplicate removal greasy dirt |
| CN113214579A (en) * | 2021-05-28 | 2021-08-06 | 山东宜居新材料科技有限公司 | Antibacterial ecological floor and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116396641A (en) * | 2023-04-06 | 2023-07-07 | 浙江纳美新材料股份有限公司 | Water-based cationic color paste and preparation method and application thereof |
| CN116396641B (en) * | 2023-04-06 | 2024-03-26 | 浙江纳美新材料股份有限公司 | Water-based cationic color paste and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105315507B (en) | A kind of method for preparing modified graphene chitosan laminated film | |
| CN105315508B (en) | A kind of preparation method of modified graphene chitosan laminated film | |
| CN109749484B (en) | Antibacterial water-based aluminum pigment and preparation method thereof | |
| CN106117570B (en) | A kind of sodium alginate anti-bacterial hydrogel and its preparation method and application loading polyamide-amide dendrimer | |
| CN115873452A (en) | Mildew-proof antibacterial water-based color paste and preparation method thereof | |
| JPS63226292A (en) | Deacetylated non-clarified composite polysaccharide s-60 and production thereof | |
| JPH0428722B2 (en) | ||
| CN102153674B (en) | P-aminobenzoate chitosan ester and preparation method thereof | |
| CN107381579A (en) | A kind of preparation method of mesoporous spherical nano Sio 2 particle | |
| CN107439593A (en) | A kind of silver-colored chitosan anti-bacteria material and preparation method thereof | |
| CN111455684A (en) | High-durability antibacterial mildew-proof polyvinyl chloride artificial leather and preparation method thereof | |
| CA1117048A (en) | Bacterial polysaccharide | |
| CN111334053A (en) | Antibacterial material of nano-silver covalent grafting halogenated hydantoin-based chitosan and preparation method thereof | |
| EP0012552B1 (en) | Heteropolysaccharides produced by bacteria and derived products, their preparation, and the lyophilized culture of the bacteria | |
| AU2021105314A4 (en) | An amino nanocellulose and preparation method thereof | |
| WO2020184797A1 (en) | Eco-friendly method for preparing unnatural amino acid-based antibacterial and antibiotic preservative | |
| CN113502089B (en) | Color paste for ink of water-based pen | |
| WO2023280257A1 (en) | Pretreatment process for acarbose fermentation liquid | |
| CN109907072B (en) | Bacteria-carrying nano chitosan livestock house disinfectant and preparation method and application thereof | |
| CN116410640B (en) | Water-based acrylic coating and preparation method thereof | |
| CN110550647A (en) | Method for preparing nano calcium carbonate by using chitinase as crystal form control agent | |
| CN109370184A (en) | A kind of environmental protection aseptic packaging film | |
| CN112956603B (en) | Monoatomic zinc additive capable of replacing feeding nano zinc oxide and preparation method thereof | |
| CN116376889A (en) | Carrier for improving pepsin stress resistance of alpha-galactosidase and application thereof | |
| JPS59142201A (en) | High-molecular polysaccharide of improved hydrophilicity and its preparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230331 |