CN112661921A - Novel antibacterial agent, preparation method and application - Google Patents
Novel antibacterial agent, preparation method and application Download PDFInfo
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- CN112661921A CN112661921A CN202011507125.5A CN202011507125A CN112661921A CN 112661921 A CN112661921 A CN 112661921A CN 202011507125 A CN202011507125 A CN 202011507125A CN 112661921 A CN112661921 A CN 112661921A
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Abstract
The invention discloses a novel antibacterial agent, a preparation method and application, wherein the novel antibacterial agent is p-phenylenediamine terephthalaldehyde, and the molecular formula of the novel antibacterial agent is as follows: (C)14H10N2)n. The preparation method comprises the steps of firstly, respectively dissolving p-phenylenediamine and terephthalaldehyde in absolute ethyl alcohol to obtain a terephthalaldehyde absolute ethyl alcohol solution and a p-phenylenediamine absolute ethyl alcohol solution; secondly, adding the absolute ethyl alcohol solution of terephthalaldehyde obtained in the first step into the absolute ethyl alcohol solution of p-phenylenediamine and fully mixing under the condition of stirring at room temperature; stirring for 3h to obtain light yellow precipitate, vacuum filtering, washing with anhydrous ethanol, and drying to obtain p-phenylenediamine shrinkTerephthalaldehyde polymer. The obtained novel antibacterial agent is applied to the preparation of the aqueous functional antibacterial ink by using the antibacterial agent, so that the problems of health and pollution risks caused by using an organic solvent in the ink are solved, and the novel antibacterial agent has wide application value in the printing industry.
Description
Technical Field
The invention belongs to the field of compound preparation, and relates to a novel antibacterial agent, a preparation method and application thereof.
Background
Antimicrobial refers to a chemical substance that maintains the growth and reproduction of certain microorganisms (bacteria, fungi, yeasts, algae, etc.) below a necessary level over a period of time. Ancient people found that the water contained in the silver, copper and other containers is not easy to deteriorate, and developed to the cooking and drinking appliances prepared by using the silver, copper and other materials later. Modern antibacterial agents can be classified into inorganic antibacterial agents, organic antibacterial agents and natural antibacterial agents. The inorganic antibacterial agent is prepared by fixing metals (or ions thereof) such as silver, copper and zinc on the surface of porous materials such as fluorite and silica gel by physical adsorption ion exchange method mainly utilizing antibacterial ability of metals such as silver, copper and zinc. The organic antibacterial agent is mainly prepared into chemical substances with antibacterial property by adopting an artificial synthesis method, thereby realizing the inhibition of microorganisms in the environment. The natural antibacterial agent is mainly extracted from natural substances, such as cinnamon essential oil, chitosan and the like are commonly used, but the extract of the cinnamon essential oil and the like is often difficult to dissolve in water, so that the application of the natural antibacterial agent is limited.
With the rapid development of packaging, printing and dyeing and other industries in China, the demand for printing ink is rapidly increased. The traditional ink mostly uses organic solvents such as methanol, benzene, toluene, isopropanol, ethyl acetate and the like as connecting materials, the solvents have strong volatility and toxicity, and especially some ink directly contacting with human can cause certain harm to the natural environment and human health. Volatilization of harmful solvents causes emission of a large amount of VOC, and the atmospheric environment is seriously influenced. The successful research and development of the water-based ink greatly reduces the consumption of the traditional ink, effectively protects the environment, and although the water-based ink can reduce the discharge of VOC, the water-based ink is usually required to be sterilized after being applied to clothes printing and dyeing, the adhesive force of the ink on fabrics is affected in the sterilization process, and the application of the water-based ink in the clothes printing and dyeing industry is seriously affected. The water-based antibacterial ink provides a thought for solving the problem, and is a novel functional ink which is prepared by adding a substance with antibacterial property into a water-based ink formula and enables the water-based antibacterial ink to have antibacterial property on the premise of meeting the printing property of the ink.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a novel antibacterial agent to solve the technical problem of antibacterial property of water-based ink.
In order to solve the technical problems, the invention adopts the following technical scheme:
a novel antibacterial agent is p-phenylenediamine terephthalaldehyde with a molecular formula: (C)14H10N2)nThe value range of n is 20-50, and the structural formula is as follows:
specifically, the preparation method is used for preparing the novel antibacterial agent as claimed in claim 1, and specifically comprises the following steps:
respectively dissolving p-phenylenediamine and terephthalaldehyde in absolute ethyl alcohol to obtain a terephthalaldehyde absolute ethyl alcohol solution and a p-phenylenediamine absolute ethyl alcohol solution;
secondly, adding the absolute ethyl alcohol solution of terephthalaldehyde obtained in the first step into the absolute ethyl alcohol solution of p-phenylenediamine to be fully mixed under the condition of violent stirring at 10-25 ℃; and continuously stirring for 1-5 hours at the temperature of 10-25 ℃ to obtain light yellow precipitate, and then carrying out suction filtration, absolute ethyl alcohol washing and drying treatment on the obtained precipitate to obtain the p-phenylenediamine terephthalaldehyde polymer, namely the novel antibacterial agent.
Specifically, the specific process of the step one is as follows: according to the molar ratio of p-phenylenediamine to absolute ethyl alcohol of 1: weighing p-phenylenediamine at a metering ratio of 70, and adding the p-phenylenediamine into absolute ethyl alcohol obtained by calculation according to a molar ratio at the temperature of 10-25 ℃ to obtain an absolute ethyl alcohol solution of the p-phenylenediamine; according to the molar ratio of terephthalaldehyde to absolute ethyl alcohol of 1:70, weighing terephthalaldehyde, and adding the terephthalaldehyde into absolute ethyl alcohol obtained by molar ratio calculation at the temperature of 10-25 ℃ to obtain an absolute ethyl alcohol solution of terephthalaldehyde.
The invention also discloses an application of the antibacterial agent prepared by the preparation method of the invention in preparation of water-based functional antibacterial ink.
The invention also discloses a preparation method of the water-based functional antibacterial ink, wherein the water-based functional antibacterial ink comprises the novel antibacterial agent, and the preparation method specifically comprises the following steps:
the method comprises the following steps: preparing ingredients according to mass percentage, comprising the following steps: 10-20% of pigment base material, 10-15% of environment-friendly acrylic resin, 10-15% of saturated polyester resin, 2-16% of p-phenylenediamine terephthalaldehyde antibacterial agent, 1-3% of ethylene glycol, 1-2% of sodium dodecyl sulfate, 1-3% of emulsifier, 1-2% of anti-sticking agent, 1-2% of defoaming agent and 22-63% of deionized water;
step two, mixing a pigment base material, a dispersing agent (the dispersing agent is ethylene glycol) and a p-phenylenediamine terephthalaldehyde antibacterial agent to obtain a solid mixture, adding absolute ethyl alcohol and deionized water into the obtained solid mixture under the stirring condition, adding the absolute ethyl alcohol and the deionized water into the obtained solid mixture at the stirring speed of 600rpm, stirring and diluting at the stirring speed of 600rpm to obtain a mixed solution, adjusting the pH value of the mixed solution to be between 8.0 and 9.5, heating the mixed solution to 40-50 ℃, raising the stirring speed to 800-1000 rpm, continuously stirring for 60-90 min, and fully drying to obtain a powdery mixture;
step three: placing the powdery mixture obtained in the step two into a reaction container, adding an emulsifier into the reaction container, and stirring for 30min under the conditions that the temperature is 10-30 ℃ and the stirring speed is 400-600 rpm;
step four: adding a defoaming agent and an anti-sticking agent, stirring for 30min at the temperature of 10-30 ℃ and the stirring speed of 400-600 rpm, stopping stirring, and naturally cooling to room temperature to obtain the anti-sticking agent.
Furthermore, the pigment base material in the step one is any one of benzidine yellow, titanium dioxide, bright red, carbon black and phthalocyanine blue.
Furthermore, the emulsifier described in step three is an ethanolamine emulsifier.
Further, the releasing agent described in the fourth step is a modified polysiloxane.
Further, the defoaming agent in the fourth step is a silicone defoaming agent.
Compared with the prior art, the invention has the following technical effects:
the antibacterial agent is a novel antibacterial agent, is environment-friendly and has high low-temperature activity.
(II) the antibacterial agent has low raw material cost, environmental protection and good antibacterial capability.
Drawings
FIG. 1 is an IR spectrum of the antibacterial agent obtained in example 1.
Fig. 2 is a raman spectrum of the antibacterial agent obtained in example 1.
The present invention will be explained in further detail with reference to examples.
Detailed Description
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example 1:
this example provides a novel antimicrobial agent, which is p-phenylenediamine terephthalaldehyde having the formula: (C)14H10N2)nThe value range of n is 20-50, and the structural formula is as follows:
the preparation method of the novel antibacterial agent of the embodiment specifically comprises the following steps:
weighing 1.08g (0.01mol) of p-phenylenediamine and 1.34g (0.01mol) of terephthalaldehyde, weighing p-phenylenediamine and absolute ethyl alcohol according to the molar ratio of the p-phenylenediamine to the absolute ethyl alcohol of 1:70, and dissolving the p-phenylenediamine in the absolute ethyl alcohol at room temperature to obtain an absolute ethyl alcohol solution of the p-phenylenediamine; weighing terephthalaldehyde and absolute ethyl alcohol according to a metering ratio of the mole ratio of the terephthalaldehyde to the absolute ethyl alcohol of 1:70, and dissolving the terephthalaldehyde in the absolute ethyl alcohol at room temperature to obtain an absolute ethyl alcohol solution of the terephthalaldehyde;
adding absolute ethyl alcohol solution of terephthalaldehyde into absolute ethyl alcohol solution of p-phenylenediamine and fully mixing under the condition of violent stirring; stirring for 3h at 20 deg.C to obtain light yellow precipitate, vacuum filtering, washing with anhydrous alcohol, and drying to obtain p-phenylenediamine terephthalaldehyde polymer, i.e. novel antibacterial agent.
Product characterization:
the IR spectrum of the antibacterial agent obtained in this example is shown in FIG. 1, and the Raman spectrum of the antibacterial agent obtained in this example is shown in FIG. 2.
As can be seen from FIG. 1, it is located at 2868cm-1The peak is generated by C-H bond stretching vibration on alkane, and the overtone peak is 1612cm on benzene ring at 1695cm-1-1At is a characteristic peak of C ═ N bond, 1484cm-1Peak at 1193cm, generated by vibration of benzene ring skeleton-1Peak at position (1107 cm) is generated by C-H in-plane bending vibration on benzene ring-1The peak is generated by stretching and vibrating C-N bond connected with C and N on benzene ring, 847cm-1The peak at (a) is generated by the p-disubstituted C-N out-of-plane bending vibration of the benzene ring. It can be seen that the p-phenylenediamine terephthalaldehyde polymer is 1612cm-1The peak of the absorption due to stretching vibration attributed to the-C ═ N-bond indicates that the resulting compound contains a group of — C ═ N-, indeed, confirming the occurrence of condensation reaction.
As can be seen from FIG. 2, the depth is 1610cm-1Corresponding Raman absorption appears, and the absorption peak is also attributed to the characteristic absorption of-C ═ N-bond formed by condensation reaction, thereby proving thatP-phenylenediamine and terephthalaldehyde are used as raw materials, and the p-phenylenediamine and terephthalaldehyde polymer can be synthesized through condensation reaction.
Therefore, the antibacterial agent obtained in this example is the target novel antibacterial agent to be obtained in this application.
The water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
20% of pigment base material, 15% of environment-friendly acrylic resin, 15% of saturated polyester resin, 2% of ethylene glycol and 1% of sodium dodecyl sulfate.
2 percent of p-phenylenediamine terephthalaldehyde serving as an antibacterial agent.
Antiblocking agent 2% (modified polysiloxane).
Emulsifier 2% (ethanolamine emulsifier).
Defoaming agent 2% (silicone defoaming agent).
39 percent of deionized water
Then preparing the water-based functional antibacterial ink according to the following steps:
mixing a pigment base material, acrylic resin, saturated polyester resin and a p-phenylenediamine terephthalaldehyde antibacterial agent to obtain a solid mixture, adding absolute ethyl alcohol and deionized water into the obtained solid mixture under the stirring condition, stirring and diluting at a stirring speed of 600rpm to obtain a mixed solution, adjusting the pH of the mixed solution to be 8.0-9.5, heating the mixed solution to 40-50 ℃, raising the stirring speed to 600-1000 rpm, continuously stirring at 60-90 rpm, and fully drying to obtain a powdery mixture;
step three: placing the powdery mixture obtained in the step two into a reaction container, adding an emulsifier into the reaction container, and stirring for 30min under the conditions that the temperature is 10-30 ℃ and the stirring speed is 400-600 rpm;
step four: adding defoaming agent and anti-sticking agent, stirring at 20 deg.C and stirring speed of 500rpm for 30min, stopping stirring, and naturally cooling to room temperature.
Through detection, the water-based antibacterial functional ink prepared in the embodiment has good performance and 96% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 8.9mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 7.8 mm.
Example 2:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
18% of pigment base material, 10% of environment-friendly acrylic resin, 15% of saturated polyester resin, 2% of ethylene glycol, 1% of sodium dodecyl sulfate, 6% of antibacterial agent p-phenylenediamine terephthalaldehyde, 2% of anti-sticking agent (modified polysiloxane), 2% of emulsifier (ethanolamine emulsifier), 2% of defoaming agent (organic silicon defoaming agent) and 42% of deionized water.
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
Through detection, the water-based antibacterial functional ink prepared in the embodiment has good performance and 97% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 12.4mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 10.5 mm.
Example 3:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
16 percent of pigment base material, 10 percent of environment-friendly acrylic resin, 10 percent of saturated polyester resin, 2 percent of ethylene glycol, 2 percent of sodium dodecyl sulfate, 8 percent of antibacterial agent p-phenylenediamine terephthalaldehyde, 2 percent of anti-sticking agent (modified polysiloxane), 2 percent of emulsifier (ethanolamine emulsifier), 2 percent of defoaming agent (organic silicon defoaming agent) and 46 percent of deionized water
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
Through detection, the water-based antibacterial functional ink prepared in the embodiment has good performance and 97% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 12.4mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 10.5 mm.
Example 4:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
14 percent of pigment base material, 13 percent of environment-friendly acrylic resin, 13 percent of saturated polyester resin, 2 percent of ethylene glycol, 1 percent of sodium dodecyl sulfate, 6 percent of antibacterial agent p-phenylenediamine terephthalaldehyde, 1 percent of anti-sticking agent (modified polysiloxane), 2 percent of emulsifier (ethanolamine emulsifier), 2 percent of defoaming agent (organic silicon defoaming agent) and 46 percent of deionized water
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
Through detection, the water-based antibacterial functional ink prepared in the embodiment has good performance and 95% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 15.1mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 12.9 mm.
Example 5:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
12 percent of pigment base material, 15 percent of environment-friendly acrylic resin, 11 percent of saturated polyester resin, 1 percent of ethylene glycol, 2 percent of sodium dodecyl sulfate, 8 percent of antibacterial agent p-phenylenediamine terephthalaldehyde, 2 percent of anti-sticking agent (modified polysiloxane), 2 percent of emulsifier (ethanolamine emulsifier), 1 percent of defoaming agent (organic silicon defoaming agent) and 46 percent of deionized water
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
Through detection, the water-based antibacterial functional ink prepared in the embodiment has good performance and 97% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 18.3mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 15.4 mm.
Example 6:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
10 percent of pigment base material, 13 percent of environment-friendly acrylic resin, 12 percent of saturated polyester resin, 2 percent of ethylene glycol, 2 percent of sodium dodecyl sulfate, 10 percent of antibacterial agent p-phenylenediamine terephthalaldehyde, 2 percent of anti-sticking agent (modified polysiloxane), 3 percent of emulsifier (ethanolamine emulsifier), 2 percent of defoaming agent (organic silicon defoaming agent) and 44 percent of deionized water
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
Through detection, the water-based antibacterial functional ink prepared in the embodiment has good performance and 97% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 20.2mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 17.5 mm.
Example 7:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
15% of pigment base material, 14% of environment-friendly acrylic resin, 11% of saturated polyester resin, 2% of ethylene glycol, 1% of sodium dodecyl sulfate, 12% of antibacterial agent p-phenylenediamine terephthalaldehyde, 2% of anti-sticking agent (modified polysiloxane), 1% of emulsifier (ethanolamine emulsifier) and 2% of defoaming agent (organic silicon defoaming agent). 40% of deionized water.
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
Through detection, the water-based antibacterial functional ink prepared in the embodiment has good performance and 96% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 22.5mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 19.3 mm.
Example 8:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
18% of pigment base material, 14% of environment-friendly acrylic resin, 14% of saturated polyester resin, 2% of ethylene glycol, 1% of sodium dodecyl sulfate, 14% of antibacterial agent p-phenylenediamine terephthalaldehyde, 2% of anti-sticking agent (modified polysiloxane), 2% of emulsifier (ethanolamine emulsifier), 2% of defoaming agent (organic silicon defoaming agent) and 31% of deionized water.
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
The water-based antibacterial functional ink prepared in the embodiment has good performance and 95% adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 24.1mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 21.5 mm.
Example 9:
the water-based antibacterial functional ink mainly comprises the following components in percentage by mass:
13% of pigment base material, 15% of environment-friendly acrylic resin, 10% of saturated polyester resin, 2% of ethylene glycol, 2% of sodium dodecyl sulfate, 16% of antibacterial agent p-phenylenediamine terephthalaldehyde, 2% of anti-sticking agent (modified polysiloxane), 2% of emulsifier (ethanolamine emulsifier), 1% of defoaming agent (organic silicon defoaming agent) and 37% of deionized water.
The specific preparation method of the water-based antibacterial functional ink is the same as that of example 1.
The water-based antibacterial functional ink prepared in the embodiment has good performance and 96% of adhesion fastness, and the antibacterial effect is tested by adopting a bacteriostatic ring method, wherein the diameter of a bacteriostatic ring of escherichia coli is 25.9mm, and the diameter of a bacteriostatic ring of staphylococcus aureus is 23.6 mm.
And (3) performance testing:
the prepared antibacterial agent was used for preparing water-based antibacterial functional ink, and the antibacterial performance of the ink samples was tested by the oscillating flask method, and the results are shown in table 1. As can be seen from the data listed in table 1: the synthesized antibacterial functional ink has an obviously better inhibition effect on escherichia coli than staphylococcus aureus, and the higher the content of an antibacterial agent (p-phenylenediamine terephthalaldehyde) in the ink is, the better the antibacterial effect of the ink is.
Table 1: antibacterial rate of antibacterial agent content on escherichia coli and staphylococcus aureus
| Content of antibacterial agent | Bacteriostatic ratio of Escherichia coli (%) | Inhibitory rate (%) of Staphylococcus aureus |
| 2％ | 75.2％ | 69.3％ |
| 4％ | 79.8％ | 73.4％ |
| 6％ | 83.2％ | 77.1％ |
| 8％ | 86.5％ | 80.3％ |
| 10％ | 89.2％ | 83.5％ |
| 12％ | 91.6％ | 86.7％ |
| 14％ | 93.2％ | 89.8％ |
| 16％ | 95.4％ | 91.3％ |
Claims (9)
1. A novel antibacterial agent, characterized in that the novel antibacterial agent is p-phenylenediamine terephthalaldehyde which is a mixture ofThe molecular formula is: (C)14H10N2)nThe value range of n is 20-50, and the structural formula is as follows:
2. a method for preparing a novel antibacterial agent, which is characterized by comprising the following steps:
respectively dissolving p-phenylenediamine and terephthalaldehyde in absolute ethyl alcohol to obtain a terephthalaldehyde absolute ethyl alcohol solution and a p-phenylenediamine absolute ethyl alcohol solution;
secondly, adding the absolute ethyl alcohol solution of terephthalaldehyde obtained in the first step into the absolute ethyl alcohol solution of p-phenylenediamine and fully mixing under the condition of stirring at room temperature; and (3) continuously and violently stirring for 1-5 hours to obtain light yellow precipitate, and then carrying out suction filtration, absolute ethyl alcohol washing and drying treatment on the obtained precipitate to obtain the p-phenylenediamine terephthalaldehyde polymer, namely the novel antibacterial agent.
3. The method for preparing a novel antibacterial agent according to claim 2, wherein the specific process of the step one is as follows: weighing p-phenylenediamine and absolute ethyl alcohol according to a metering ratio of the molar ratio of the p-phenylenediamine to the absolute ethyl alcohol of 1:70, and dissolving the p-phenylenediamine in the absolute ethyl alcohol at room temperature to obtain an absolute ethyl alcohol solution of the p-phenylenediamine; weighing terephthalaldehyde and absolute ethyl alcohol according to a metering ratio of the terephthalaldehyde to the absolute ethyl alcohol of 1:70, and dissolving the terephthalaldehyde in the absolute ethyl alcohol at room temperature to obtain an absolute ethyl alcohol solution of the terephthalaldehyde.
4. Use of the antibacterial agent prepared by the preparation method according to claim 2 or 3 for the preparation of an aqueous functional antibacterial ink.
5. A method for preparing an aqueous functional antibacterial ink, which is characterized in that the aqueous functional antibacterial ink comprises the novel antibacterial agent of claim 1, and comprises the following steps:
the method comprises the following steps: preparing ingredients according to mass percentage, comprising the following steps: 10-20% of pigment base material, 10-15% of acrylic resin, 10-15% of saturated polyester resin, 2-16% of p-phenylenediamine terephthalaldehyde antibacterial agent, 1-3% of ethylene glycol, 1-2% of sodium dodecyl sulfate, 1-3% of emulsifier, 1-2% of anti-sticking agent, 1-2% of defoaming agent and 22-63% of deionized water;
step two, mixing a pigment base material, acrylic resin, saturated polyester resin and a p-phenylenediamine terephthalaldehyde antibacterial agent to obtain a solid mixture, adding absolute ethyl alcohol and deionized water into the obtained solid mixture under the stirring condition, stirring and diluting at the stirring speed of 600rpm to obtain a mixed solution, adjusting the pH of the mixed solution to 8.0-9.5, heating the mixed solution to 40-50 ℃, raising the stirring speed to 800-1000 rpm, continuously stirring for 60-90 min, and fully drying to obtain a powdery mixture;
step three: placing the powdery mixture obtained in the step two into a reaction container, adding an emulsifier into the reaction container, and stirring for 30min under the conditions that the temperature is 10-30 ℃ and the stirring speed is 400-600 rpm;
step four: adding a defoaming agent and an anti-sticking agent, stirring for 30min at the temperature of 10-30 ℃ and the stirring speed of 400-600 rpm, stopping stirring, and naturally cooling to room temperature to obtain the anti-sticking agent.
6. The method of claim 5, wherein the pigment base in the first step is one of benzidine yellow, titanium dioxide, brilliant red, carbon black, and phthalocyanine blue.
7. The method according to claim 5, wherein the emulsifier in step three is an ethanolamine-based emulsifier.
8. The process according to claim 5, wherein the releasing agent in the fourth step is a modified polysiloxane.
9. The method according to claim 5, wherein the defoaming agent in the fourth step is a silicone-based defoaming agent.
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| CN116284629A (en) * | 2022-12-31 | 2023-06-23 | 安徽工业大学 | Low-cost porous organic polymer material and preparation method thereof |
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Application publication date: 20210416 |