CN108184826B - Color-changing mosquito-repelling hydrogel and preparation method thereof - Google Patents
Color-changing mosquito-repelling hydrogel and preparation method thereof Download PDFInfo
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- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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Abstract
The invention discloses a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 17-32% of water-soluble polymerized monomer, 0.6-1.8% of cross-linking agent, 0.1-1.5% of mosquito repellent, 0.04-0.2% of oil-soluble coloring agent, 0.8-1.6% of solubilizer, 0.04-0.12% of initiator and the balance of water. The hydrogel is formed by crosslinking chemical components, has higher mechanical strength, can resist the structural change of the hydrogel caused by the change of the use environments such as rainwater and sunshine, avoids the problem that the mosquito repellent effect of the hydrogel is weakened due to the loss of mosquito repellent agents, has an oil-soluble coloring agent in the hydrogel, realizes the indicating effect on the drug-loading allowance by utilizing the physical characteristics of the oil-soluble coloring agent, and avoids the condition that the mosquito repellent effect is weakened or resources are wasted due to the unclear drug-loading allowance. Also discloses a preparation method of the hydrogel, which has simple preparation steps and mild conditions and is suitable for industrial batch production.
Description
Technical Field
The invention belongs to the technical field of production of daily chemical articles, relates to a mosquito repellent product and a preparation method thereof, and particularly relates to a color-changing mosquito repellent hydrogel and a preparation method thereof.
Background
Mosquitoes are the most common sanitary pests in daily life of people, influence the daily life of people such as work, study and the like, are the main transmission media of various infectious diseases, and according to testings, the number of people dying due to mosquito bites is about 80 thousands of people every year in the world. The mosquito has extremely strong viability, is widely developed in places with accumulated water such as water channels, ponds, open drainage ditches, flowerpots and the like, and with the great increase of outdoor activity time of people, how to solve one of the hot problems of avoiding mosquito bite in outdoor activities for research of researchers, and a series of mosquito repellent products are researched and developed; the mosquito-repellent incense has poor mosquito-killing and-repelling effects in outdoor occasions and has certain fire safety hidden danger; the mosquito repellent liquid needs to be smeared for use, and the mosquito repellent effect is easily influenced by body sweat. Therefore, the slow-release mosquito repelling product which is free of spraying, easy to carry and use and capable of repelling mosquitoes for a long time is imperatively developed to solve the problem of mosquito bites in outdoor activities of people.
To this end, chinese patent document CN103068410A discloses an aqueous gel composition of drug volatile, which comprises an anionic oil dispersion polymer composition, a volatile drug, water, a solvent, a colorant, an antifogging agent, an antioxidant, a gelling agent, a thickener, a natural deodorant, and the like, wherein the above components are gelled by physical crosslinking, specifically, by physical forces such as electrostatic interaction, ionic interaction, hydrogen bonding, and chain entanglement, and the hydrogel is non-permanent, and the structure of the hydrogel is changed by heating and sun exposure, and the formed colloid has much lower rigidity than that of a chemically gelled hydrogel, and is susceptible to sun exposure, drying, and rain exposure during use, resulting in breakage of a substrate, and if the volatile drug in the colloid is an insect repellent or insecticide, the broken substrate is likely to cause loss of an effective insect repellent component, the insect-repellent effect is weakened.
Chinese patent document CN101133072B discloses a controlled release hydrogel for bioactive materials, in the preparation process of the hydrogel, components with perfuming, flavoring, medicinal, insect repellent or attractant effects can be added to a reaction system using guanine nucleoside hydrazide derivative as a substrate to obtain a controlled release hydrogel product with corresponding effects. But the product can not provide the function of indicating the remaining use time, thereby greatly reducing the convenience of the product in use. Chinese patent document CN103004757A discloses a porous temperature-sensitive hydrogel sustained-release agent and a preparation method thereof. The patent takes N-isopropyl acrylamide as a monomer, and simultaneously adds a cross-linking agent, an initiator, a medicine carrying agent and a slow release promoter into a reaction system to obtain the hydrogel with a slow release effect through polymerization reaction. Likewise, the hydrogel prepared by the method has no function of reminding the residual service time.
Chinese patent document CN101288408B discloses a clothing insect-proof agent, which is prepared by adding an indicator soaked with a liquid medicine into a medicine bin containing an oil-containing pyrethrin liquid medicine, and using the difference of luminosity of the indicator when the liquid medicine is present to indicate whether the liquid medicine is used up.
The technical contents generally include that the residual situation of the mosquito repellent agent in the product cannot be accurately known after the mosquito repellent hydrogel is opened for use, a consumer cannot be reminded of replacing the mosquito repellent agent when the agent amount is too low so as to avoid the mosquito bite caused by insufficient agent, or the mosquito repellent agent is mistakenly regarded as insufficient agent amount and discarded under the condition of sufficient agent amount, so that resource waste is caused, and a large amount of mosquito repellent agent can also cause adverse effects on the environment to a certain extent.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems, and provides the color-changing mosquito-repellent hydrogel which is high in physical strength, stable in structure and capable of indicating the remaining service life, and the preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a color-changing mosquito-repellent hydrogel which is obtained by polymerizing the following components in percentage by mass: 17-32% of water-soluble polymerized monomer, 0.6-1.8% of cross-linking agent, 0.1-1.5% of mosquito repellent, 0.04-0.2% of oil-soluble coloring agent, 0.8-1.6% of solubilizer, 0.04-0.12% of initiator and the balance of water.
Preferably, the water-soluble polymeric monomer comprises a component A and a component B, wherein the component A is N-vinyl pyrrolidone, and the component B is at least one of hydroxyethyl methacrylate, methyl methacrylate, ethyl methacrylate and acrylamide.
Preferably, the mass ratio of the component A to the component B is 1: 4-15.
Preferably, the solubilizer is sorbitan fatty acid ester or polyoxyethylene fatty acid ester; the cross-linking agent is ethylene glycol dimethacrylate.
Preferably, the oil-soluble coloring agent is 1, 4-bis (butylamino) -9, 10-anthracenedione; the initiator is one of azodiisobutyronitrile, diacyl peroxide and persulfate.
Preferably, the mosquito repellent is at least one of pyrethroid or plant essential oil.
Preferably, the pyrethroid is selected from at least one of prallethrin, metofluthrin, transfluthrin and prallethrin; the plant essential oil is at least one of lemon essential oil, citronella essential oil, lavender essential oil, clove essential oil, eucalyptus essential oil, mint essential oil, cedar essential oil, rosemary essential oil, citronella essential oil, rose geranium essential oil, cajeput essential oil, thyme essential oil, catmint essential oil, sweet wormwood essential oil and eucalyptus citriodora essential oil.
The invention also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, uniformly mixing the water-soluble polymerized monomer, the cross-linking agent, the mosquito repellent, the oil-soluble coloring agent, the initiator, the solubilizer and water according to the proportion, placing the mixture in a brown container, and introducing nitrogen for treatment;
and S2, placing the mixed solution obtained in the step S1 in a forming die, and heating to react to obtain the color-changing mosquito-repelling hydrogel.
Preferably, in step S1, the nitrogen gas is introduced for 6-15 min.
Preferably, in step S2, the temperature-increasing reaction is specifically: the reaction was continued for 12h in a water bath at 50-80 ℃.
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) the color-changing mosquito-repellent hydrogel is prepared by polymerizing the following components in percentage by mass: 17-32% of water-soluble polymerized monomer, 0.6-1.8% of cross-linking agent, 0.1-1.5% of mosquito repellent, 0.04-0.2% of oil-soluble coloring agent, 0.8-1.6% of solubilizer, 0.04-0.12% of initiator and the balance of water. The hydrogel is formed by crosslinking chemical components, has higher mechanical strength, can resist the structural change of the hydrogel caused by the change of the use environment such as rainwater, sunshine and the like, avoids the problem that the mosquito repellent effect of the hydrogel is weakened due to the loss of mosquito repellent agents, has an oil-soluble coloring agent in the hydrogel, realizes the indicating effect on the drug-carrying allowance by utilizing the physical characteristics of the oil-soluble coloring agent, gradually reduces the dissolving amount of the oil-soluble coloring agent in the hydrogel after the drug-carrying in the color-changing hydrogel is volatilized until the oil-soluble coloring agent is completely separated out, so that the color of the hydrogel is changed from deep to light, the change can be directly observed by naked eyes, the remaining condition of the mosquito repellent component in the mosquito repellent hydrogel can be known, and the condition that the mosquito repellent effect or the resource is wasted due to the unclear drug-.
(2) The preparation method of the color-changing mosquito-repellent hydrogel comprises the following steps: s1, uniformly mixing the water-soluble polymerized monomer, the cross-linking agent, the mosquito repellent, the oil-soluble coloring agent, the initiator, the solubilizer and water according to the proportion, placing the mixture in a brown container, and introducing nitrogen for treatment; and S2, placing the mixed solution obtained in the step S1 in a forming die, and heating to react to obtain the color-changing mosquito-repelling hydrogel. The preparation method has simple steps and mild conditions, and is suitable for industrial batch production.
Detailed Description
In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure as illustrated in the accompanying drawings.
Example 1
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 16% of hydroxyethyl methacrylate, 4% of N-vinyl pyrrolidone, 0.6% of ethylene glycol dimethacrylate, 0.8% of prallethrin, 0.1% of 1, 4-di (butylamino) -9, 10-anthracenedione, 1.2% of polyoxyethylene fatty acid ester, 0.08% of azobisisobutyronitrile and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding hydroxyethyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, polyoxyethylene fatty acid ester, azobisisobutyronitrile and deionized water according to the proportion into a brown bottle, stirring for 5-10min until an initiator is fully dissolved, adding the uniformly mixed dextromethorphan and 1, 4-bis (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 10 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at the temperature of 60 ℃ to obtain the color-changing mosquito-repelling hydrogel.
Example 2
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 15% of hydroxyethyl methacrylate, 15% of ethyl methacrylate, 2% of N-vinyl pyrrolidone, 1.8% of ethylene glycol dimethacrylate, 1.36% of methoxybenzyl-fluthrin, 0.12% of 1, 4-bis (butylamino) -9, 10-anthracenedione, 1.6% of sorbitan fatty acid ester (span-120), 0.12% of azobisisobutyronitrile and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding hydroxyethyl methacrylate, ethyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, span-120, azobisisobutyronitrile and deionized water according to the proportion into a brown bottle, stirring for 5-10min until an initiator is fully dissolved, adding uniformly mixed methoxybenzofluorthrin and 1, 4-bis (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 15 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at 80 ℃ to obtain the color-changing mosquito-repellent hydrogel.
Example 3
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 28% of acrylamide, 5% of N-vinyl pyrrolidone, 0.6% of ethylene glycol dimethacrylate, 0.4% of transfluthrin, 0.06% of 1, 4-di (butylamino) -9, 10-anthracenedione, 0.8% of sorbitan fatty acid ester (span-120), 0.04% of diacyl peroxide and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding acrylamide, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, span-120, diacyl peroxide and deionized water according to the proportion into a brown bottle, stirring for 5-10min until an initiator is fully dissolved, adding uniformly mixed transfluthrin and 1, 4-di (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 6 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at 50 ℃ to obtain the color-changing mosquito-repellent hydrogel.
Example 4
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 14.2 percent of hydroxyethyl methacrylate, 2.8 percent of N-vinyl pyrrolidone, 1.42 percent of ethylene glycol dimethacrylate, 0.1 percent of methoxybenzyl-fluthrin, 0.04 percent of 1, 4-di (butylamino) -9, 10-anthracenedione, 0.04 percent of span-1201.4 percent, 0.04 percent of persulfate and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding hydroxyethyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, span-120, persulfate and deionized water into a brown bottle according to the proportion, stirring for 5-10min until the initiator is fully dissolved, adding uniformly mixed methoxybenzylfluthrin and 1, 4-di (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 9 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at 70 ℃ to obtain the color-changing mosquito-repellent hydrogel.
Example 5
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 10% of hydroxyethyl methacrylate, 5% of methyl methacrylate, 5% of ethyl methacrylate, 5% of N-vinyl pyrrolidone, 1.6% of ethylene glycol dimethacrylate, 0.5% of transfluthrin, 1% of lemon essential oil, 0.2% of 1, 4-bis (butylamino) -9, 10-anthracenedione, span-1201.4%, 0.12% of azobisisobutyronitrile and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding 5% of hydroxyethyl methacrylate, 5% of methyl methacrylate, ethyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, span-120, azodiisobutyronitrile and deionized water into a brown bottle according to the proportion, stirring for 5-10min until an initiator is fully dissolved, adding uniformly mixed transfluthrin, lemon essential oil and 1, 4-bis (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 8 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at 55 ℃ to obtain the color-changing mosquito-repellent hydrogel.
Example 6
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 10% of hydroxyethyl methacrylate, 10% of ethyl methacrylate, 5% of N-vinyl pyrrolidone, 1.6% of ethylene glycol dimethacrylate, 1.3% of rose geranium essential oil, 0.2% of cedar essential oil, 0.2% of 1, 4-bis (butylamino) -9, 10-anthracenedione, span-1201.4%, 0.12% of azobisisobutyronitrile and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding hydroxyethyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, span-120, azobisisobutyronitrile and deionized water according to the proportion into a brown bottle, stirring for 5-10min until an initiator is fully dissolved, adding uniformly mixed rose geranium essential oil, cedar essential oil and 1, 4-bis (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 10 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at 65 ℃ to obtain the color-changing mosquito-repellent hydrogel.
Example 7
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 29 percent of hydroxyethyl methacrylate, 2 percent of N-vinyl pyrrolidone, 1.8 percent of ethylene glycol dimethacrylate, 0.3 percent of prallethrin, 1.06 percent of citronella essential oil, 0.12 percent of 1, 4-di (butylamino) -9, 10-anthracenedione, 0.8978 percent of span-1201.3 percent, 0.08 percent of azodiisobutyronitrile and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding hydroxyethyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, span-120, azodiisobutyronitrile and deionized water according to the proportion into a brown bottle, stirring for 5-10min until an initiator is fully dissolved, adding the uniformly mixed right-handed prallethrin, lemongrass essential oil and 1, 4-bis (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 12 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at 70 ℃ to obtain the color-changing mosquito-repellent hydrogel.
Example 8
The embodiment provides a color-changing mosquito-repelling hydrogel which is obtained by polymerizing the following components in percentage by mass: 26% of methyl methacrylate, 3% of N-vinyl pyrrolidone, 1.4% of ethylene glycol dimethacrylate, 1.5% of eucalyptus citriodora essential oil, 0.1% of 1, 4-bis (butylamino) -9, 10-anthracenedione, span-1201.2%, 0.1% of azobisisobutyronitrile and the balance of deionized water.
The implementation also provides a method for preparing the color-changing mosquito-repellent hydrogel, which comprises the following steps:
s1, slowly adding methyl methacrylate, N-vinyl pyrrolidone, ethylene glycol dimethacrylate, span-120, azodiisobutyronitrile and deionized water according to the proportion into a brown bottle, stirring for 5-10min until an initiator is fully dissolved, adding the uniformly mixed eucalyptus citriodora essential oil and 1, 4-bis (butylamino) -9, 10-anthracenedione under the stirring condition, continuously stirring for 5-10min to obtain a blue transparent solution, and introducing dry nitrogen into the solution for 13 min.
S2, placing the mixed solution obtained in the step S1 in a circular glass vessel with the diameter of 6cm and the height of 3cm, and carrying out water bath reaction for 12 hours at the temperature of 60 ℃ to obtain the color-changing mosquito-repelling hydrogel.
Comparative example 1
The comparative example provides a color-changing mosquito-repellent hydrogel which is prepared by polymerizing the following components in percentage by mass: 12% of hydroxyethyl methacrylate, 4% of N-vinyl pyrrolidone, 1.0% of ethylene glycol dimethacrylate, 0.5% of methoxybenzofluorthrin, 0.10% of 1, 4-bis (butylamino) -9, 10-anthracenedione, span-1200.6%, 0.10% of azobisisobutyronitrile and 81.7% of deionized water.
The mosquito-repellent hydrogel with a complete shape cannot be obtained by adopting the method of any one of the embodiments 1 to 8.
Comparative example 2
The comparative example provides a color-changing mosquito-repellent hydrogel which is prepared by polymerizing the following components in percentage by mass: 30% of hydroxyethyl methacrylate, 10% of N-vinyl pyrrolidone, 3.0% of ethylene glycol dimethacrylate, 1.5% of methoxybenzofloxacin, 0.20% of 1, 4-bis (butylamino) -9, 10-anthracenedione, span-1201.0%, 0.12% of azobisisobutyronitrile and 54.18% of deionized water.
The preparation method is carried out by adopting the method of any one of the embodiments 1 to 8, and the color-changing mosquito-repellent hydrogel is obtained.
Comparative example 3
The comparative example provides a color-changing mosquito-repellent hydrogel which is prepared by polymerizing the following components in percentage by mass: 20% of hydroxyethyl methacrylate, 5% of N-vinyl pyrrolidone, 1.0% of ethylene glycol dimethacrylate, 4.0% of methoxybenzofluorthrin, 0.10% of 1, 4-bis (butylamino) -9, 10-anthracenedione, span-1200.6%, 0.10% of azobisisobutyronitrile and 69.2% of deionized water.
The preparation method is carried out by adopting any one of the methods in the embodiments 1 to 8, and the color-changing mosquito-repellent hydrogel is obtained.
Comparative example 4
The comparative example provides a color-changing mosquito-repellent hydrogel which is prepared by polymerizing the following components in percentage by mass: 20% of hydroxyethyl methacrylate, 5% of N-vinyl pyrrolidone, 1.0% of ethylene glycol dimethacrylate, 1.5% of methoxybenzofluorthrin, 0.01% of 1, 4-bis (butylamino) -9, 10-anthracenedione, span-1200.6%, 0.02% of azobisisobutyronitrile and 71.87% of deionized water.
The preparation method is carried out by adopting any one of the methods in the embodiments 1 to 8, and the color-changing mosquito-repellent hydrogel is obtained.
Test example
1. The color-changing mosquito-repellent hydrogel prepared by the methods of examples 1-8 and comparative examples 1-4 is suspended at the temperature of 28 +/-1 ℃, the relative humidity of 60 +/-10% and the air exchange rate of 50m3In the room of the/h, the color of the color-changing mosquito-repellent hydrogel sample is observed by naked eyes on days 1, 3, 5, 7, 9 and 11, and the result is shown in the table 1:
TABLE 1
| Day 1 | Day 3 | Day 5 | Day 7 | Day 9 | Day 11 | |
| Example 1 | Dark blue | Dark blue | Light blue | Light blue | White colour (Bai) | White colour (Bai) |
| Example 2 | Dark blue | Dark blue | Light blue | Light blue | Light blue | White colour (Bai) |
| Example 3 | Dark blue | Light blue | Light blue | White colour (Bai) | White colour (Bai) | White colour (Bai) |
| Example 4 | Light blue | Light blue | White colour (Bai) | White colour (Bai) | White colour (Bai) | White colour (Bai) |
| Example 5 | Dark blue | Dark blue | Dark blue | Light blue | Light blue | White colour (Bai) |
| Example 6 | Dark blue | Dark blue | Dark blue | Light blue | Light blue | White colour (Bai) |
| Example 7 | Dark blue | Dark blue | Light blue | Light blue | Light blue | White colour (Bai) |
| Example 8 | Dark blue | Dark blue | Light blue | Light blue | Light blue | White colour (Bai) |
| Comparative example 2 | Dark blue | Dark blue | Dark blue | Dark blue | Dark blue | Dark blue |
| Comparative example 3 | Dark blue | Dark blue | Dark blue | Dark blue | Dark blue | Dark blue |
| Comparative example 4 | Light blue | White colour (Bai) | White colour (Bai) | White colour (Bai) | White colour (Bai) | White colour (Bai) |
The test results in table 1 show that the color-changing mosquito repellent hydrogels described in examples 1-2 and 5-8 change from dark blue, light blue to white under the condition that the usage time increases on days 1, 3, 5, 7, 9 and 11, the color change is obvious, and the content of the insect repellent and the oil-soluble coloring agent in examples 3 and 4 is low, so that the initial color is light, light blue, and consistent with the mosquito repellent effect.
Comparative example 1 since the content of the water-soluble polymeric monomer is only 16%, the color-changing mosquito repellent hydrogel with a complete shape cannot be obtained, so that the comparative example 1 has uneven color distribution and cannot be subjected to color observation. In the comparative example 2, the water-soluble polymerized monomer with higher content is adopted, the prepared color-changing mosquito-repellent hydrogel has higher hardness, and the color change is not obvious in 11 days. The mosquito repellent color-changing hydrogel for repelling mosquitoes in the comparative example 3 has the mosquito repellent component content of 4 percent and has no obvious color change. Comparative example 4 the hydrogel was light in color and light blue due to the addition of the oil-soluble coloring agent being too low.
2. The color-changing mosquito repelling gel prepared by the methods of the examples 1 to 8 and the comparative examples 1 to 4 is hung indoors at the temperature of 28 +/-1 ℃ and the relative humidity of 60 +/-10%, the release of mosquito repelling components is promoted by utilizing air convection, and the mosquito repelling effect of each color-changing mosquito repelling gel is tested. The specific test method is as follows:
referring to GB/T13917.5-2009 test method, 50 culex fatigued mosquitoes are released in a transparent glass square box of 70cm x 70cm, after the test insects normally move, a sample is hung in the center of the glass square box at a position 40cm away from the ground by a small door, the whole square box device is closed, timing is carried out immediately, the number of the knocked down test insects is checked every 5min, the test is finished after 60min, and the KT50 time is calculated according to the recorded result. Data were recorded according to the following criteria: the KT50 takes less than or equal to 10min as an obvious effect; the effect is general when the time is more than 10min and less than or equal to 30min and KT 50; no effect is obtained when the time of KT50 is more than 30 min.
The test results are shown in table 2:
TABLE 2
As can be seen from the results shown in table 2, the color of the color-changing mosquito-repellent hydrogel described in embodiments 1 to 8 can correspond to the mosquito-repellent effect one by one, the mosquito-repellent effect of the hydrogel in the deep blue stage is obvious, the mosquito-repellent effect of the hydrogel in the light blue stage is general, and the mosquito-repellent effect of the hydrogel in the white stage is not present, wherein in embodiment 4, because the addition amounts of the oil-soluble coloring agent and the mosquito-repellent agent are low, the initial color is light blue, correspondingly, the mosquito-repellent effect is general, and the mosquito-repellent effect is not present after the color is changed into white, and the mosquito.
For comparative example 2, when the color was dark blue, the corresponding mosquito repellent effect was general, and the color and mosquito repellent effect could not be corresponded. Comparative example 3, no significant color change occurred over the 11 days of observation, and thus was not judged. In comparative example 4, when the color was light blue, the corresponding mosquito repellent effect was significant.
The results show that the color-changing mosquito repellent hydrogel disclosed in the embodiments 1 to 8 can accurately judge the mosquito repellent effect according to the color, and cannot accurately judge the mosquito repellent effect according to the color of the comparative examples 1 to 4.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (2)
1. The color-changing mosquito-repellent hydrogel is characterized by being prepared by polymerizing the following components in percentage by mass: 17-32% of water-soluble polymerized monomer, 0.6-1.8% of cross-linking agent, 0.1-1.5% of mosquito repellent, 0.04-0.2% of oil-soluble coloring agent, 0.8-1.6% of solubilizer, 0.04-0.12% of initiator and the balance of water;
the water-soluble polymerized monomer comprises a component A and a component B, wherein the component A is N-vinyl pyrrolidone, and the component B is at least one of hydroxyethyl methacrylate, methyl methacrylate, ethyl methacrylate and acrylamide; the mass ratio of the component A to the component B is 1: 4-15;
the solubilizer is sorbitan fatty acid ester or polyoxyethylene fatty acid ester; the cross-linking agent is ethylene glycol dimethacrylate; the oil-soluble coloring agent is 1, 4-di (butylamino) -9, 10-anthracenedione; the initiator is one of azodiisobutyronitrile, diacyl peroxide and persulfate; the mosquito repellent is at least one of pyrethroid or plant essential oil;
the preparation method of the color-changing mosquito-repellent hydrogel comprises the following steps:
s1, uniformly mixing the water-soluble polymerized monomer, the cross-linking agent, the mosquito repellent, the oil-soluble coloring agent, the initiator, the solubilizer and water according to the proportion, placing the mixture in a brown container, and introducing nitrogen for treatment; introducing nitrogen for 6-15 min;
s2, placing the mixed solution obtained in the step S1 in a forming die, and continuously reacting in a water bath at the temperature of 50-80 ℃ for 12 hours to obtain the color-changing mosquito-repellent hydrogel.
2. The color-changing mosquito-repellent hydrogel according to claim 1, wherein the pyrethroid is selected from at least one of prallethrin, metofluthrin, transfluthrin and prallethrin; the plant essential oil is at least one of lemon essential oil, citronella essential oil, lavender essential oil, clove essential oil, eucalyptus essential oil, mint essential oil, cedar essential oil, rosemary essential oil, citronella essential oil, rose geranium essential oil, cajeput essential oil, thyme essential oil, catmint essential oil, sweet wormwood essential oil and eucalyptus citriodora essential oil.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210921A (en) * | 1997-08-29 | 1999-03-17 | 联合株式会社 | Functional material containing volatile agent |
| CN102504117A (en) * | 2011-09-27 | 2012-06-20 | 浙江大学 | Aquagel with high water absorbing capacity and preparation method thereof |
| CN103004757A (en) * | 2012-12-25 | 2013-04-03 | 山东大学 | Porous temperature-sensitive hydrogel slow release formulation and preparation method thereof |
| CN103068410A (en) * | 2010-08-05 | 2013-04-24 | 高砂香料工业株式会社 | Aqueous gel composition of drug volatilization body |
| CN103262839A (en) * | 2013-05-31 | 2013-08-28 | 广州立白企业集团有限公司 | Mosquito repelling gel composition with natural plant essential oil |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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-
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210921A (en) * | 1997-08-29 | 1999-03-17 | 联合株式会社 | Functional material containing volatile agent |
| CN103068410A (en) * | 2010-08-05 | 2013-04-24 | 高砂香料工业株式会社 | Aqueous gel composition of drug volatilization body |
| CN102504117A (en) * | 2011-09-27 | 2012-06-20 | 浙江大学 | Aquagel with high water absorbing capacity and preparation method thereof |
| CN103004757A (en) * | 2012-12-25 | 2013-04-03 | 山东大学 | Porous temperature-sensitive hydrogel slow release formulation and preparation method thereof |
| CN103262839A (en) * | 2013-05-31 | 2013-08-28 | 广州立白企业集团有限公司 | Mosquito repelling gel composition with natural plant essential oil |
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