CN111793242A - Preparation method of antibacterial and mildewproof sponge - Google Patents
Preparation method of antibacterial and mildewproof sponge Download PDFInfo
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- CN111793242A CN111793242A CN202010768661.4A CN202010768661A CN111793242A CN 111793242 A CN111793242 A CN 111793242A CN 202010768661 A CN202010768661 A CN 202010768661A CN 111793242 A CN111793242 A CN 111793242A
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/048—Elimination of a frozen liquid phase
- C08J2201/0484—Elimination of a frozen liquid phase the liquid phase being aqueous
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- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
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Abstract
The invention relates to the technical field of sponges, in particular to a preparation method of an antibacterial and mildewproof sponge, which specifically comprises the following steps of S1, preparing raw materials, and comprising the following raw materials: polyoxyethylene triol, toluene diisocyanate, antibacterial nanocellulose, silicone surfactant, mildew preventive, photocatalyst nano titanium dioxide, natural latex, carbon black, talcum powder, sodium hydroxide, an anti-aging agent, a gelling agent, a foaming agent, a crosslinking agent, an amine catalyst, epoxy soybean oil, cubic zirconium phosphate silver-loaded antibacterial powder and water; s2, preparing and mixing; s3, curing and forming; and S4, punching and trimming. The preparation method of the antibacterial and mildewproof sponge provided by the invention is simple and reasonable, has a short production period, is low in cost, high in production efficiency, strong in antibacterial and mildewproof performance, has a market prospect, and is suitable for popularization.
Description
Technical Field
The invention relates to the technical field of sponges, and particularly relates to a preparation method of an antibacterial and mildewproof sponge.
Background
The sponge is a common living article in people's life, but traditional sponge easily goes mildy, breeds bacterium and mite, causes the injury to the human body, produces various diseases, and current sponge does not generally have effectual mould proof, antibiotic effect. Therefore, we propose a preparation method of the antibacterial and mildewproof sponge to solve the above problems.
Disclosure of Invention
The invention aims to solve the defect that the existing sponge does not have the functions of mildew prevention and antibiosis in the prior art, and provides a preparation method of an antibacterial and mildew-proof sponge
In order to achieve the purpose, the invention adopts the following technical scheme:
the preparation method of the antibacterial and mildewproof sponge comprises the following steps:
s1, preparing raw materials:
the raw materials comprise the following components in parts by weight: 10-22 parts of polyoxyethylene triol, 30-45 parts of toluene diisocyanate, 60-65 parts of antibacterial nano-cellulose, 1-2 parts of silicone surfactant, 2-2.5 parts of mildew preventive, 0.5-0.7 part of photocatalyst nano-titanium dioxide, 50-70 parts of natural latex, 5-7 parts of carbon black, 6-7 parts of talcum powder, 5-10 parts of sodium hydroxide, 5-7 parts of anti-aging agent, 8-9 parts of gelling agent, 5-10 parts of foaming agent, 5-15 parts of cross-linking agent, 1-5 parts of amine catalyst, 1-1.5 parts of epoxy soybean oil, 3-5 parts of cubic zirconium phosphate silver-loaded antibacterial powder and 50-60 parts of water;
s2, preparing and mixing:
adding the antibacterial nanocellulose, the natural latex, the photocatalyst nano titanium dioxide and the cubic zirconium phosphate silver-loaded antibacterial powder in the step S1 in parts by weight into a reactor, replacing air in the reactor with nitrogen for three times, slowly adding the epoxidized soybean oil, the polyoxyethylene triol, the toluene diisocyanate, the carbon black and the talcum powder, gradually heating and stirring, and adding the sodium hydroxide until the pH value of the mixed solution is 6.5-7.5; at the moment, preserving heat, adding an anti-aging agent, a gelling agent, a foaming agent, a cross-linking agent, an amine catalyst, a silicone surfactant, a mildew preventive and water according to the weight ratio, transferring the mixture into a foaming stirrer to be quickly stirred until a large amount of foam is generated, then carrying out speed-reducing foam-homogenizing stirring, and then stirring at a medium speed to obtain a foaming liquid.
S3, curing and molding:
and (4) directly freeze-drying the foaming liquid obtained in the step (S2) in a mould at the freeze-drying temperature of-15 to-18 ℃, freeze-drying for 5 to 10 hours, transferring into an oven, and curing for 0.5 to 1.5 hours at the temperature of 55 to 58 ℃ to obtain the sponge.
S4, punching and trimming:
and punching equidistant and uniform through air holes on the sponge body by using a sponge punching machine, and performing trimming and finished product inspection to obtain the qualified antibacterial mildew-proof sponge.
Preferably, in step S2, the temperature-rising stirring time is 5-10h, the temperature-rising rate is 10-20 ℃/h, and the stirring speed is 600-700 r/min.
Preferably, in step S2, the rotational speed of the foam mixer during the rapid mixing is 200 to 500r/min, and the rotational speed of the foam mixer during the medium-speed mixing is 100 to 150 r/min.
Preferably, the raw material also comprises 5-10 parts of SiO2 aerogel.
Preferably, the mildew inhibitor is a mixture of 4% quaternary ammonium salt, 10% thyme oil, 10% citral, 2% cinnamaldehyde, 5% peppermint oil, 3% horseradish oil, 10% anise oil, and 56% ethanol.
The preparation method of the antibacterial and mildewproof sponge provided by the invention has the beneficial effects that: the preparation method of the antibacterial and mildewproof sponge provided by the invention is simple and reasonable, has a short production period, is low in cost, high in production efficiency, strong in antibacterial and mildewproof performance, has a market prospect, and is suitable for popularization.
Detailed Description
The invention is further illustrated by the following examples.
Example 1
The preparation method of the antibacterial and mildewproof sponge comprises the following steps:
s1, preparing raw materials:
the raw materials comprise the following components in parts by weight: 10 parts of polyoxyethylene triol, 30 parts of toluene diisocyanate, 60 parts of antibacterial nanocellulose, 1 part of silicone surfactant, 2 parts of mildew preventive, 0.5 part of photocatalyst nano titanium dioxide, 50 parts of natural latex, 5 parts of carbon black, 6 parts of talcum powder, 5 parts of sodium hydroxide, 5 parts of anti-aging agent, 8 parts of gelling agent, 5 parts of foaming agent, 5 parts of crosslinking agent, 1 part of amine catalyst, 1 part of epoxy soybean oil, 3 parts of cubic zirconium phosphate silver-loaded antibacterial powder and 50 parts of water, wherein the raw materials further comprise 5 parts of SiO2 aerogel; the mildew inhibitor is a mixture of 4% quaternary ammonium salt, 10% thyme oil, 10% citral, 2% cinnamaldehyde, 5% peppermint oil, 3% horseradish oil, 10% anise essential oil, and 56% ethanol.
S2, preparing and mixing:
adding the antibacterial nanocellulose, the natural latex, the photocatalyst nano titanium dioxide and the cubic zirconium phosphate silver-loaded antibacterial powder in the step S1 in parts by weight into a reactor, replacing air in the reactor with nitrogen for three times, slowly adding the epoxidized soybean oil, the polyoxyethylene triol, the toluene diisocyanate, the carbon black and the talcum powder, gradually heating and stirring for 5 hours at a heating rate of 10 ℃/h at a stirring speed of 600 r/min; adding sodium hydroxide until the pH value of the mixed solution is 6.5; at the moment, preserving heat, adding an anti-aging agent, a gelling agent, a foaming agent, a crosslinking agent, an amine catalyst, a silicone surfactant, a mildew preventive and water according to the weight ratio, transferring the mixture into a foaming stirrer to be quickly stirred until a large amount of foaming is carried out, then carrying out speed reduction and foam homogenizing stirring, and then stirring at a medium speed to obtain a foaming solution, wherein the rotating speed of the foaming stirrer during quick stirring is 200r/min, and the rotating speed of the foaming stirrer during medium speed stirring is 100 r/min.
S3, curing and molding:
and (4) directly freeze-drying the foaming liquid obtained in the step (S2) in a mould at the temperature of-15 ℃, freeze-drying for 5 hours, transferring into an oven, and curing for 0.5 hour at the temperature of 55 ℃ to obtain the sponge.
S4, punching and trimming:
and punching equidistant and uniform through air holes on the sponge body by using a sponge punching machine, and performing trimming and finished product inspection to obtain the qualified antibacterial mildew-proof sponge.
Example 2
The preparation method of the antibacterial and mildewproof sponge comprises the following steps:
s1, preparing raw materials:
the raw materials comprise the following components in parts by weight: 22 parts of polyoxyethylene triol, 45 parts of toluene diisocyanate, 65 parts of antibacterial nanocellulose, 2 parts of silicone surfactant, 2.5 parts of mildew preventive, 0.7 part of photocatalyst nano titanium dioxide, 70 parts of natural latex, 7 parts of carbon black, 7 parts of talcum powder, 10 parts of sodium hydroxide, 7 parts of anti-aging agent, 9 parts of gelling agent, 10 parts of foaming agent, 15 parts of cross-linking agent, 5 parts of amine catalyst, 1.5 parts of epoxidized soybean oil, 5 parts of cubic zirconium phosphate silver-loaded antibacterial powder and 60 parts of water; the raw materials also comprise 10 parts of SiO2 aerogel, and the mildew inhibitor is a mixture of 4% quaternary ammonium salt, 10% thyme oil, 10% citral, 2% cinnamaldehyde, 5% peppermint oil, 3% horseradish oil, 10% anise essential oil and 56% ethanol.
S2, preparing and mixing:
adding the antibacterial nanocellulose, the natural latex, the photocatalyst nano titanium dioxide and the cubic zirconium phosphate silver-loaded antibacterial powder in the step S1 in parts by weight into a reactor, replacing air in the reactor with nitrogen for three times, slowly adding the epoxidized soybean oil, the polyoxyethylene triol, the toluene diisocyanate, the carbon black and the talcum powder, gradually heating and stirring for 5-10 hours at a heating rate of 20 ℃/h at a stirring speed of 700 r/min; adding sodium hydroxide until the pH value of the mixed solution is 7.5; at the moment, preserving heat, adding an anti-aging agent, a gelling agent, a foaming agent, a crosslinking agent, an amine catalyst, a silicone surfactant, a mildew preventive and water according to the weight ratio, transferring the mixture into a foaming stirrer to be quickly stirred until a large amount of foaming is carried out, then carrying out speed reduction and foam homogenizing stirring, and then stirring at a medium speed to obtain a foaming solution, wherein the rotating speed of the foaming stirrer during quick stirring is 500r/min, and the rotating speed of the foaming stirrer during medium speed stirring is 150 r/min.
S3, curing and molding:
and (4) directly freeze-drying the foaming liquid obtained in the step (S2) in a mould at the freeze-drying temperature of-18 ℃, freeze-drying for 10 hours, transferring into an oven, and curing for 1.5 hours at the temperature of 58 ℃ to obtain the sponge body.
S4, punching and trimming:
and punching equidistant and uniform through air holes on the sponge body by using a sponge punching machine, and performing trimming and finished product inspection to obtain the qualified antibacterial mildew-proof sponge.
Example 3
The preparation method of the antibacterial and mildewproof sponge comprises the following steps:
s1, preparing raw materials:
the raw materials comprise the following components in parts by weight: 20 parts of polyoxyethylene triol, 40 parts of toluene diisocyanate, 62 parts of antibacterial nanocellulose, 2 parts of silicone surfactant, 2.5 parts of mildew preventive, 0.6 part of photocatalyst nano titanium dioxide, 60 parts of natural latex, 6 parts of carbon black, 7 parts of talcum powder, 8 parts of sodium hydroxide, 6 parts of anti-aging agent, 9 parts of gelling agent, 8 parts of foaming agent, 10 parts of cross-linking agent, 4 parts of amine catalyst, 1.5 parts of epoxidized soybean oil, 4 parts of cubic zirconium phosphate silver-loaded antibacterial powder and 55 parts of water; the raw materials also comprise 8 parts of SiO2 aerogel, and the mildew inhibitor is a mixture of 4% quaternary ammonium salt, 10% thyme oil, 10% citral, 2% cinnamaldehyde, 5% peppermint oil, 3% horseradish oil, 10% anise essential oil and 56% ethanol.
S2, preparing and mixing:
adding the antibacterial nanocellulose, the natural latex, the photocatalyst nano titanium dioxide and the cubic zirconium phosphate silver-loaded antibacterial powder in the step S1 in parts by weight into a reactor, replacing air in the reactor with nitrogen for three times, slowly adding the epoxidized soybean oil, the polyoxyethylene triol, the toluene diisocyanate, the carbon black and the talcum powder, gradually heating and stirring for 5-10 hours at a heating rate of 15 ℃/h at a stirring speed of 620 r/min; adding sodium hydroxide until the pH value of the mixed solution is 7; at the moment, preserving heat, adding an anti-aging agent, a gelling agent, a foaming agent, a crosslinking agent, an amine catalyst, a silicone surfactant, a mildew preventive and water according to the weight ratio, transferring the mixture into a foaming stirrer to be quickly stirred until a large amount of foaming is carried out, then carrying out speed reduction and foam homogenizing stirring, and then stirring at a medium speed to obtain a foaming solution, wherein the rotating speed of the foaming stirrer during quick stirring is 300r/min, and the rotating speed of the foaming stirrer during medium speed stirring is 140 r/min.
S3, curing and molding:
and (4) directly freeze-drying the foaming liquid obtained in the step (S2) in a mould at the freeze-drying temperature of-17 ℃, freeze-drying for 8 hours, transferring into an oven, and curing for 1 hour at the temperature of 57 ℃ to obtain the sponge.
S4, punching and trimming:
and punching equidistant and uniform through air holes on the sponge body by using a sponge punching machine, and performing trimming and finished product inspection to obtain the qualified antibacterial mildew-proof sponge.
The preparation method of the antibacterial and mildewproof sponge provided by the invention is simple and reasonable, has a short production period, is low in cost, high in production efficiency, strong in antibacterial and mildewproof performance, has a market prospect, and is suitable for popularization.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The preparation method of the antibacterial and mildewproof sponge is characterized by comprising the following steps:
s1, preparing raw materials:
the raw materials comprise the following components in parts by weight: 10-22 parts of polyoxyethylene triol, 30-45 parts of toluene diisocyanate, 60-65 parts of antibacterial nano-cellulose, 1-2 parts of silicone surfactant, 2-2.5 parts of mildew preventive, 0.5-0.7 part of photocatalyst nano-titanium dioxide, 50-70 parts of natural latex, 5-7 parts of carbon black, 6-7 parts of talcum powder, 5-10 parts of sodium hydroxide, 5-7 parts of anti-aging agent, 8-9 parts of gelling agent, 5-10 parts of foaming agent, 5-15 parts of cross-linking agent, 1-5 parts of amine catalyst, 1-1.5 parts of epoxy soybean oil, 3-5 parts of cubic zirconium phosphate silver-loaded antibacterial powder and 50-60 parts of water;
s2, preparing and mixing:
adding the antibacterial nanocellulose, the natural latex, the photocatalyst nano titanium dioxide and the cubic zirconium phosphate silver-loaded antibacterial powder in the step S1 in parts by weight into a reactor, replacing air in the reactor with nitrogen for three times, slowly adding the epoxidized soybean oil, the polyoxyethylene triol, the toluene diisocyanate, the carbon black and the talcum powder, gradually heating and stirring, and adding the sodium hydroxide until the pH value of the mixed solution is 6.5-7.5; at the moment, preserving heat, adding an anti-aging agent, a gelling agent, a foaming agent, a cross-linking agent, an amine catalyst, a silicone surfactant, a mildew preventive and water according to the weight ratio, transferring the mixture into a foaming stirrer to be quickly stirred until a large amount of foam is formed, then carrying out speed reduction and foam homogenizing stirring, and then stirring at a medium speed to obtain a foaming solution;
s3, curing and molding:
directly freeze-drying the foaming liquid obtained in the step S2 in a mould at the freeze-drying temperature of-15 to-18 ℃ for 5 to 10 hours, transferring the foaming liquid into an oven, and curing the foaming liquid for 0.5 to 1.5 hours at the temperature of 55 to 58 ℃ to obtain a sponge body;
s4, punching and trimming:
and punching equidistant and uniform through air holes on the sponge body by using a sponge punching machine, and performing trimming and finished product inspection to obtain the qualified antibacterial mildew-proof sponge.
2. The method for preparing the antibacterial and antifungal sponge as claimed in claim 1, wherein in step S2, the temperature-rising stirring time is 5-10h, the temperature-rising rate is 10-20 ℃/h, and the stirring speed is 600-700 r/min.
3. The method for preparing an antibacterial and antifungal sponge as claimed in claim 1, wherein in step S2, the rotation speed of the foaming mixer during fast stirring is 200-500 r/min, and the rotation speed of the foaming mixer during medium stirring is 100-150 r/min.
4. The method for preparing the antibacterial and mildewproof sponge according to claim 1, wherein the raw materials further comprise 5-10 parts of SiO2 aerogel.
5. The method for preparing the antibacterial and mildewproof sponge as claimed in claim 1, wherein the mildewcide is a mixture of 4% of quaternary ammonium salt, 10% of thyme oil, 10% of citral, 2% of cinnamaldehyde, 5% of peppermint oil, 3% of horseradish oil, 10% of anise oil and 56% of ethanol.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560988A (en) * | 2022-04-13 | 2022-05-31 | 中国科学院长春应用化学研究所 | High-comfort polyurethane sponge, preparation method and application product thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824859A (en) * | 2019-02-21 | 2019-05-31 | 东莞市恒盈海绵制品有限公司 | It is a kind of with anti-mite, mould proof and antibacterial functions sponges and preparation method thereof |
| CN110982130A (en) * | 2019-11-13 | 2020-04-10 | 惠州市高峰创兴实业有限公司 | Preparation method of antibacterial and mildewproof sponge |
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- 2020-08-03 CN CN202010768661.4A patent/CN111793242A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824859A (en) * | 2019-02-21 | 2019-05-31 | 东莞市恒盈海绵制品有限公司 | It is a kind of with anti-mite, mould proof and antibacterial functions sponges and preparation method thereof |
| CN110982130A (en) * | 2019-11-13 | 2020-04-10 | 惠州市高峰创兴实业有限公司 | Preparation method of antibacterial and mildewproof sponge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560988A (en) * | 2022-04-13 | 2022-05-31 | 中国科学院长春应用化学研究所 | High-comfort polyurethane sponge, preparation method and application product thereof |
| CN114560988B (en) * | 2022-04-13 | 2023-10-13 | 中国科学院长春应用化学研究所 | Polyurethane sponge with high comfort, preparation method thereof and application product thereof |
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