CN111334228B - Air-purifying and antibacterial water-based crack sealer - Google Patents
Air-purifying and antibacterial water-based crack sealer Download PDFInfo
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- CN111334228B CN111334228B CN202010217562.7A CN202010217562A CN111334228B CN 111334228 B CN111334228 B CN 111334228B CN 202010217562 A CN202010217562 A CN 202010217562A CN 111334228 B CN111334228 B CN 111334228B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention discloses an air-purifying and antibacterial water-based crack sealer which consists of a component A and a component B in a volume ratio of 1: 1, wherein the component A comprises the following components in parts by weight: 88-95 parts of water-based epoxy resin and 5-12 parts of hydrophilic fumed silica; the component B comprises the following components in parts by weight: 80 parts of modified hydrophilic curing agent, 1-5 parts of nano-silver, 1-5 parts of anion powder, 5-8 parts of hydrophilic fumed silica and 3-10 parts of toner, wherein the weight of the anion powder is 0.8-1.2 times of that of the nano-silver. According to the invention, the nano-silver and the anion powder are added into the water-based crack beautifying agent, so that the water-based crack beautifying agent has the effects of eliminating air odor and sterilizing, and has high-efficiency antibacterial performance which is not possessed by pure nano-silver by adjusting the optimal proportion, thereby greatly improving the comprehensive performance of the product.
Description
Technical Field
The invention relates to the technical field of seam beautifying agents, and particularly relates to a water-based seam beautifying agent with the effects of essence air and antibiosis.
Background
The crack beautifying agent is epoxy resin adhesive, and has rich color, strong pollution resistance, easy construction, fast development in recent years and fast increase in market amount. Especially, in recent years, the heat of the household is not reduced. The current crack beautifying agents on the market mainly comprise an oily crack beautifying agent and a water-based crack beautifying agent. The oily crack sealer is a water-insoluble polymer formed by epoxy resin through ring-opening crosslinking curing by an amine curing agent containing active hydrogen, has the advantages of good bonding force, high strength, smooth and flat surface and the like, but has the problems of poor environmental protection, easy cracking after curing and the like, does not have the water-erasable function, and is not beneficial to subsequent cleaning treatment. The water-based crack sealer is formed by crosslinking and curing water-based epoxy resin and a water-based epoxy curing agent, has the advantages of environmental protection and cleaning and scrubbing by water, and does not fundamentally solve the problem of mildew breeding.
The applicant discloses a novel nano bactericidal mildew-proof water-based epoxy crack sealer in CN109486455A, wherein the weight percentage of each component in the component A is as follows: 80-90% of water-based epoxy resin, 3-5% of diluent, 0.01-0.1% of anti-yellowing agent, 2-10% of thixotropic agent and 0.01-0.05% of defoaming agent; the weight percentage of each component in the component B is as follows: 70-90% of water-based epoxy curing agent, 0.01-0.2% of coupling agent, 2-10% of thixotropic agent, 0.1-1.0% of nano silver and 5-20% of pearlescent pigment. The nano bactericidal mildew-proof water-based epoxy crack sealer can effectively inhibit and kill harmful bacteria and has spectral property and long-acting property.
The applicant also discloses in CN109486456A a novel negative ion releasing type nano water-based epoxy crack sealer, which is composed of a component a and a component B according to the volume ratio of 1: 1, wherein the weight percentages of the components in the component a are as follows: 80-90% of water-based epoxy resin, 3-5% of diluent, 0.01-0.1% of anti-yellowing agent, 2-10% of thixotropic agent and 0.01-0.05% of defoaming agent; the component B comprises the following components in percentage by weight: 70-90% of water-based epoxy curing agent, 0.01-0.2% of coupling agent, 2-10% of thixotropic agent, 5-10% of nano anion powder and 5-25% of pearlescent pigment. The negative ion release type nanometer water-based epoxy seam beautifying agent can effectively eliminate indoor peculiar smell and various harmful gases.
At present, the market has higher and higher environmental protection requirements and higher functional requirements on indoor decoration materials, and no water-based crack sealing agent product which can eliminate air peculiar smell and sterilize simultaneously exists.
Disclosure of Invention
The invention aims to provide an aqueous crack sealing agent for purifying air and resisting bacteria, so as to solve the defects in the background art. The inventor adds nano-silver and negative ions into the components of the water-based crack beautifying agent on the basis of the original research and development results, and through a great deal of research on the distribution ratio of the components, the composition and the ratio are continuously adjusted. The present inventors have completed the present invention based on the above findings.
The invention is realized by the following technical scheme:
an air-purifying and antibacterial water-based crack sealer, which consists of a component A and a component B according to the volume ratio of 1: 1, wherein the component A comprises the following components in parts by weight: 88-95 parts of water-based epoxy resin and 5-12 parts of hydrophilic fumed silica; the component B comprises the following components in parts by weight: 80 parts of modified hydrophilic curing agent, 1-5 parts of nano-silver, 1-5 parts of anion powder, 5-8 parts of hydrophilic fumed silica and 3-10 parts of toner, wherein the weight of the anion powder is 0.8-1.2 times of that of the nano-silver.
Preferably, the anion powder is selected from more than one of tourmaline, medical stone, illite and six-ring stone, and the particle size is 2000-4000 meshes.
More preferably, the anion powder is tourmaline powder, and the particle size of the anion powder is more preferably 4000 meshes.
Still more preferably, in the component B, the weight ratio of the tourmaline powder to the nano silver is 1: 1.
the waterborne epoxy resin is selected from at least one of low molecular weight hydrophilic epoxy resin, hydrophilic self-emulsifying epoxy resin and modified waterborne epoxy emulsion.
Preferably, the modified hydrophilic curing agent comprises the following components in percentage by weight: 10-20% of water-based epoxy resin, 25-30% of benzyl alcohol and 55-65% of isophorone diamine.
As a preferable technical scheme, the specific surface area of the hydrophilic fumed silica is 200-400 square meters per gram.
Preferably, the toner is at least one selected from titanium dioxide, pearl powder and glitter powder.
Preferably, the component A is prepared by the following method:
gradually adding hydrophilic fumed silica into the waterborne epoxy resin, and dispersing at a high speed; after the materials are completely dissolved, low-speed vacuum defoaming is carried out, and discharging is carried out.
Preferably, the component B is prepared by the following method:
heating and reacting each component of the modified hydrophilic curing agent at 80 ℃ for 2 hours, cooling to normal temperature, then adding hydrophilic fumed silica, dispersing at high speed until the hydrophilic fumed silica is completely dissolved, then adding nano silver, anion powder and toner in proportion, dispersing uniformly, then vacuumizing and defoaming, and discharging.
The vacuum degree is-0.09 to-0.1 mpa.
The A, B components prepared in the above way are used together according to the volume ratio of 1: 1, and the water-based crack sealer for purifying air and resisting bacteria can be obtained.
According to the water-based seam beautifying agent for purifying air and resisting bacteria, the nano silver and the anion powder are added into the water-based seam beautifying agent, so that the water-based seam beautifying agent has the effects of eliminating peculiar smell of air and killing bacteria. Can effectively eliminate indoor peculiar smell and various harmful gases, particularly irritant gases such as benzene, formaldehyde, ketone, ammonia and the like volatilized from decorative materials used in the indoor decoration process, peculiar smell harmful to human bodies such as leftovers, acid and odor in daily life, cigarettes and the like, and simultaneously effectively inhibit and kill harmful bacteria, and has spectrum property and long-acting property. By adjusting the optimal proportion, the nano silver antibacterial paint has high-efficiency antibacterial performance which is not possessed by pure nano silver, so that the comprehensive performance of the product is greatly improved.
Detailed Description
The invention is illustrated below by means of specific examples, without being restricted thereto.
Example 1
An air-purifying and antibacterial water-based crack sealer, which consists of a component A and a component B according to the volume ratio of 1: 1, wherein the dosage of each component is as follows:
component A
93 parts of waterborne epoxy resin,
7 parts of hydrophilic fumed silica.
B component
80 parts of modified hydrophilic curing agent,
3 portions of nano silver,
3 portions of anion powder,
6 parts of hydrophilic fumed silica,
8 parts of toner.
The modified hydrophilic curing agent comprises the following components in percentage by weight: 15% of water-based epoxy resin, 26% of benzyl alcohol and 59% of isophorone diamine. The anion powder is 4000-mesh tourmaline powder.
The component A is prepared by the following method: the waterborne epoxy resin is added into a stirring kettle with vacuum in proportion at one time, the rotating speed is adjusted to about 800rpm, the hydrophilic fumed silica (the specific surface area is 200 square meters per gram) is added in batches, and the high-speed dispersion is carried out. Stirring was continued for about 10 minutes after the fumed silica was completely dissolved. The rotation speed is reduced to about 400rpm, the vacuum is opened (the vacuum degree is minus 0.09MPa), and the vacuum defoamation is carried out for 1 hour. And (6) discharging.
The component B is prepared by the following method: sequentially adding waterborne epoxy resin, benzyl alcohol and isophorone diamine into a stirring kettle with vacuum, heating to 80 ℃ for reaction for 2 hours, cooling to normal temperature, then adding hydrophilic fumed silica in batches, dispersing at high speed until the hydrophilic fumed silica is completely dissolved, regulating the rotating speed to be low, then adding nano silver, anion powder and toner in proportion, vacuumizing and defoaming (the vacuum degree is-0.1 MPa) after uniform dispersion, and finishing about 1 hour and discharging.
The component A and the component B are respectively filled into 400ml double-tube rubber bottles by a full-automatic or semi-automatic filling machine. The A, B components are mixed according to the volume ratio of 1: 1 to obtain the water-based crack sealing agent for purifying air and resisting bacteria.
Examples 2 to 12
In the component B, the addition amounts of the anion powder are respectively 0 part, 0.3 part, 0.9 part, 1.5 parts, 2.4 parts, 2.7 parts, 3.3 parts, 3.6 parts, 4.5 parts, 6 parts and 9 parts, and the rest is the same as that of the component B in the example 1.
Application examples
The antibacterial activity of the aqueous caulking agents prepared in examples 1 to 12 was measured according to the standard of JISZ2801-2010, and the specific data are shown in table 1:
TABLE 1
Test results show that the antibacterial performance of the crack sealer is gradually enhanced along with the increase of the dosage of the anion powder under the condition that the dosage of the nano silver is not changed, and the mass ratio of the antibacterial performance to the dosage of the anion powder is 1: 1, the water-based crack beautifying agent only containing nano silver is nearly 3 times. Thereafter, the antibacterial activity gradually decreases with further increase of the amount of the anion powder. The specific mechanism is not clear, on one hand, the bacteriostatic and bactericidal functions of the anion powder after being ultrafined are improved, on the other hand, the anion powder and the nano-silver have a certain synergistic effect, and particularly, the unit bactericidal amount of the nano-silver is increased by adsorbing and enriching bacteria on the surface of the tourmaline due to the trigonal crystal system polyhedral structure, so that the antibacterial activity is greatly improved. When the dosage of the anion powder exceeds a certain proportion, a space blocking or shielding effect on the nano silver can be formed, and the antibacterial effect is not favorably exerted. In a word, by adjusting a proper proportion, the water-based crack sealing agent disclosed by the invention can show excellent antibacterial performance, can generate negative ions to purify air and has excellent comprehensive performance.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The water-based crack sealer for purifying air and resisting bacteria is characterized by consisting of a component A and a component B according to the volume ratio of 1: 1, wherein the component A comprises the following components in parts by weight: 88-95 parts of water-based epoxy resin and 5-12 parts of hydrophilic fumed silica; the component B comprises the following components in parts by weight: 80 parts of modified hydrophilic curing agent, 1-5 parts of nano-silver, 1-5 parts of anion powder, 5-8 parts of hydrophilic fumed silica and 3-10 parts of toner, wherein the anion powder is tourmaline powder, the particle size of the tourmaline powder is 4000 meshes, and in the component B, the weight ratio of the tourmaline powder to the nano-silver is 1: 1.
2. the air-purifying and antibacterial aqueous crack sealer according to claim 1, wherein the aqueous epoxy resin is at least one selected from the group consisting of a low molecular weight hydrophilic epoxy resin, a hydrophilic self-emulsifying epoxy resin, and a modified aqueous epoxy emulsion.
3. The air-purifying and antibacterial water-based crack sealer according to claim 1, wherein the modified hydrophilic curing agent comprises the following components in percentage by weight: 10-20% of water-based epoxy resin, 25-30% of benzyl alcohol and 55-65% of isophorone diamine.
4. The air-purifying and antibacterial aqueous crack sealer according to claim 1, wherein the specific surface area of the hydrophilic fumed silica is 200-400 square meters per gram, and the toner is at least one selected from titanium dioxide, pearl powder and glitter powder.
5. The air-purifying and antibacterial aqueous crack sealer according to claim 1, wherein the component a is prepared by the following method: gradually adding hydrophilic fumed silica into the waterborne epoxy resin, and dispersing at a high speed; after complete dissolution, low-speed vacuum defoaming and discharging; the component B is prepared by the following method: heating and reacting each component of the modified hydrophilic curing agent at 80 ℃ for 2 hours, cooling to normal temperature, then adding hydrophilic fumed silica, dispersing at high speed until the hydrophilic fumed silica is completely dissolved, then adding nano silver, negative ion powder and toner in proportion, dispersing uniformly, then vacuumizing and defoaming, and discharging; the A, B components prepared in the above way are used together according to the volume ratio of 1: 1, and the water-based crack sealer for purifying air and resisting bacteria can be obtained.
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| CN202010217562.7A CN111334228B (en) | 2020-03-25 | 2020-03-25 | Air-purifying and antibacterial water-based crack sealer |
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| CN202010217562.7A CN111334228B (en) | 2020-03-25 | 2020-03-25 | Air-purifying and antibacterial water-based crack sealer |
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| CN111334228B true CN111334228B (en) | 2021-08-03 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111748265A (en) * | 2020-07-15 | 2020-10-09 | 美国维芙科技控股集团有限公司 | Active antibacterial water-based epoxy seam beautifying agent capable of releasing negative ions |
| CN112375525A (en) * | 2020-11-27 | 2021-02-19 | 武汉派高新材料科技有限公司 | Household crack sealer and preparation method thereof |
| CN113150651A (en) * | 2021-04-27 | 2021-07-23 | 佛山美倍尔建材科技有限公司 | Preparation method of water-based glass bead seam beautifying agent |
| CN113185939A (en) * | 2021-06-07 | 2021-07-30 | 梅州市金诚防水材料有限公司 | Water-based crack sealer and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007094577A1 (en) * | 2006-02-15 | 2007-08-23 | Mal-Soo Jun | Bio artificial lacrimal canaliculus |
| CN101705049A (en) * | 2009-09-29 | 2010-05-12 | 广东三和化工科技有限公司 | Nano-silver anion tide solidifying matte floor board paint |
| CN106217542A (en) * | 2016-08-16 | 2016-12-14 | 北京林业大学 | Environment-friendly long-life type nanometer silver sill bamboo wood antibacterial mildew inhibitor and preparation method and application |
| CN109486455A (en) * | 2017-09-12 | 2019-03-19 | 上海域金澜优电子商务有限公司 | A kind of novel nano fungus and mildew resistance water-base epoxy joint trimming agent |
| CN109486456A (en) * | 2017-09-12 | 2019-03-19 | 上海域金澜优电子商务有限公司 | A kind of novel negative ion release type nanometer waterborne epoxy joint trimming agent |
| CN109535936A (en) * | 2018-11-28 | 2019-03-29 | 张苏勇 | A kind of antibiotic property negative ion paint and preparation method thereof |
-
2020
- 2020-03-25 CN CN202010217562.7A patent/CN111334228B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007094577A1 (en) * | 2006-02-15 | 2007-08-23 | Mal-Soo Jun | Bio artificial lacrimal canaliculus |
| CN101705049A (en) * | 2009-09-29 | 2010-05-12 | 广东三和化工科技有限公司 | Nano-silver anion tide solidifying matte floor board paint |
| CN106217542A (en) * | 2016-08-16 | 2016-12-14 | 北京林业大学 | Environment-friendly long-life type nanometer silver sill bamboo wood antibacterial mildew inhibitor and preparation method and application |
| CN109486455A (en) * | 2017-09-12 | 2019-03-19 | 上海域金澜优电子商务有限公司 | A kind of novel nano fungus and mildew resistance water-base epoxy joint trimming agent |
| CN109486456A (en) * | 2017-09-12 | 2019-03-19 | 上海域金澜优电子商务有限公司 | A kind of novel negative ion release type nanometer waterborne epoxy joint trimming agent |
| CN109535936A (en) * | 2018-11-28 | 2019-03-29 | 张苏勇 | A kind of antibiotic property negative ion paint and preparation method thereof |
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