CN108841285A - A kind of antibacterial joint trimming agent of environment friendly mildew resistant - Google Patents

A kind of antibacterial joint trimming agent of environment friendly mildew resistant Download PDF

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Publication number
CN108841285A
CN108841285A CN201810490117.0A CN201810490117A CN108841285A CN 108841285 A CN108841285 A CN 108841285A CN 201810490117 A CN201810490117 A CN 201810490117A CN 108841285 A CN108841285 A CN 108841285A
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nano
agent
parts
titanium dioxide
antibacterial
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程飞
陈海波
陈富安
郭晓敏
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Wuxi Zun Feng New Mstar Technology Ltd
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Wuxi Zun Feng New Mstar Technology Ltd
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
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    • C09D7/60Additives non-macromolecular
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    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract

The invention belongs to joint trimming agent technical fields, and in particular to a kind of antibacterial joint trimming agent of environment friendly mildew resistant, quality proportioning are as follows:127 44-56 parts of epoxy resin, 10-15 parts of modified manometer silicon dioxide, 5-8 parts of melamine, 7-11 parts of nano-titanium dioxide, 2-4 parts of the first dispersing agent, 7-9 parts of the second dispersing agent, 2-4 parts of levelling agent, 2-5 parts of antioxidant, 2-5 parts of water repellent agent, 4-6 parts of antibacterial agent, 5-10 parts of softened water, and provide the preparation method of joint trimming agent.Joint trimming agent provided by the invention has permanent waterproof, antimildew and antibacterial, color inhibition, wear-resisting characteristic.

Description

A kind of antibacterial joint trimming agent of environment friendly mildew resistant
Technical field
The invention belongs to joint trimming agent technical fields, and in particular to a kind of antibacterial joint trimming agent of environment friendly mildew resistant.
Background technique
World Health Organization's investigation shows that indoor biological pollution swallows people's health gradually, and pet plays indoor When playing, the hair to fall off connects homoecious acarid while can enter in the gap of ground.In addition, the food being scattered on the ground is broken Bits, when cleaning, also fall within ground gap, become the grain ration of microorganism, these indoor microbes carry out biographies of virus with bacterium It broadcasts.Cannot be neglected simultaneously is that slit surfaces easily become black mould after four or five months, and brickwork joint blackening can breed bacterium, generate different Taste influences environment, is detrimental to health, and this bacterium is especially apparent in summer, brings all multi-risk Systems to people's life.
Therefore, it in fitment process, in order to fill up existing gap between ceramic tile, usually can all be filled between these gaps Joint trimming agent, so either the hall of kitchen or toilet, even business finishing can all have the figure of joint trimming agent to occur.
However, existing joint trimming agent and gap filler are more the performances such as concern flintiness, rub resistance, color be beautiful, it is right Inhibit gap virus anti-microbial property aspect Shortcomings.To which existing joint trimming agent and gap filler inhibit gap virus antibacterial effect It is not obvious, the injury that indoor microbial contamination source can not be reduced and reduce it to human body.
Specifically, existing gap filler, is stirred by major ingredient of white cement, and being divided into has sandbox and without sandbox.On however, Joint trimming agent and gap filler are stated without waterproofness, thus it is long with the gap filler time, the moisture in air can be absorbed, and dirty when cleaning Water can infilter brickwork joint, cause the more to wipe the more dirty black, turn to be yellow mouldy, to multiply a large amount of bacterium and germ, it is strong to influence people's body Health.
In addition, existing one-component joint trimming agent aesthetics makes moderate progress than above-mentioned gap filler, and it is bright in luster abundant, it is flexible Property it is also preferable, but the one-component joint trimming agent construction finish solidification after be easy to appear contraction, it is easy to fall off over time.And again Gap is formed, is easily sheltered evil people and countenance evil practices, it is non-watertight, it easily goes mouldy, bonding force is poor, and hardness is low, not resistant, not scrubbing resistance.Further, existing Some two-component joint trimming agents surpass common one-component joint trimming agent in service life, and bright in luster abundant, shrinkage very little is complete Intensity is very high after all solidstate, and its surface will form the highly cross-linked three-dimensional-structure macromolecule layer of layer of transparent, has good Gloss.But above-mentioned two-component joint trimming agent does not sterilize the effect of antibacterial.
In addition, existing aqua type joint trimming agent, waterproof performance is preferable, but easy evaporation collapses sternly after leading to solidification after construction , there is bubble and cavity, influences whole aesthetics in weight.And the service life only has 2 to 5 years.
Therefore, in view of the above-mentioned problems, it is necessary to propose further solution.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of antibacterial joint trimming agent of environment friendly mildew resistant, the joint trimming agent tool provided There are permanent waterproof, antimildew and antibacterial, color inhibition, wear-resisting characteristic.
To realize the above technical purpose, the technical scheme is that:
A kind of antibacterial joint trimming agent of environment friendly mildew resistant, the quality proportioning of the joint trimming agent are as follows:
127 44-56 parts of epoxy resin, 10-15 parts of modified manometer silicon dioxide, 5-8 parts of melamine, nanometer titanium dioxide 7-11 parts of titanium, 2-4 parts of the first dispersing agent, 7-9 parts of the second dispersing agent, 2-4 parts of levelling agent, 2-5 parts of antioxidant, water repellent agent 2-5 Part, 4-6 parts of antibacterial agent, 5-10 parts of softened water.
The nanometer silicon dioxide particle that the modified manometer silicon dioxide uses silane modifier modified.
The method of modifying of the modified manometer silicon dioxide is as follows:
Step 1, nano silica is put into dehydrated alcohol, polyethylene glycol ultrasonic disperse 20-50min is then added, Obtain the dispersion liquid of nano silica;
Step 2, silane is slowly introducing into dispersion liquid, then sealing stirring seals back flow reaction 2- to being completely dispersed 4h obtains suspension, is successively washed using dehydrated alcohol, anhydrous methanol after filtering and is obtained silane-modified nano silica.
Further, mass concentration of the nano silica in the step 1 in dehydrated alcohol is 20-40g/L, institute The additional amount for stating polyethylene glycol is the 40-60% of nano silica quality, and the additional amount of the silane in the step 2 is nanometer The 40-70% of silica quality;Ultrasonic disperse in the step 1 is reacted using water bath sonicator, supersonic frequency 30- 50kHz, temperature are 30-60 DEG C, and the draft speed being slowly introducing in the step 2 is 10-15mL/min, and mixing speed is The temperature of 1000-2000r/min, the sealing back flow reaction are 120-130 DEG C.
The nano-titanium dioxide uses mixed crystal nano-titanium dioxide, partial size 50-300nm;The mixed crystal nano-silica Changing titanium includes nanometer anatase titania and rutile type nano titanic oxide, and the Wastewater by Nanometer Anatase nano-titanium dioxide exists Mass fraction in mixed crystal nano-titanium dioxide total amount is 20-30%, and nano rutile-type nano-titanium dioxide is in mixed crystal nanometer Mass fraction in titanium dioxide total amount is 70-80%.
First dispersing agent uses polyethylene glycol, and the second dispersing agent uses Hydroxypropylcelliloxe.
The levelling agent uses acrylic resin or Lauxite.
The antibacterial agent uses nano silver antimicrobials.
The water repellent agent uses oleic acid ethanol solution, and mass concentration of the oleic acid in dehydrated alcohol is 30-50g/L.
The preparation method of the antibacterial joint trimming agent of environment friendly mildew resistant is as follows:
Step 1, nano-titanium dioxide is added into the first dispersing agent, ultrasonic 10-25min obtains nano-titanium dioxide Dispersion liquid;
Step 2, water repellent agent is added into nano titanium oxide dispersion, is stirred to react 20- under ultraviolet irradiation condition 30min obtains hydrophobic nano-titanium dioxide dispersion liquid;
Step 3, the second dispersing agent, antibacterial agent and modified manometer silicon dioxide are added to hydrophobic nano-titanium dioxide and are dispersed It is stirred evenly in liquid, melamine then is added and 127 heated sealed of epoxy resin is stirred to react 2-3h, obtains dope;
Step 4, antioxidant and levelling agent are added and are stirred evenly into softened water, is then added viscous into step 3 In thick object, joint trimming agent is obtained after stirring.
Ultrasound in the step 1 uses water bath sonicator, and the temperature of the water bath sonicator is 30-60 DEG C, and supersonic frequency is 20-25kHz。
In the step 2 stir evenly be stirred to react as 1000-2000r/min, the ultraviolet light of the ultraviolet lighting Intensity is 800-1500mW/cm2, temperature is 25-35 DEG C.
Mixing speed in the step 3 is 1000-2000r/min, and the temperature that the heated sealed is stirred to react is 70- 80 DEG C, pressure 0.3-0.5MPa.
The present invention is used as Primary resins material using epoxy resin 127, smaller using the molecular weight of epoxy resin, can wear It is inserted between the nano molecular of dispersion, plays good connection effect, while point between the crosslinking points of epoxy resin 127 Subchain section is shorter, is able to ascend the caking property of product, reduces elasticity.
For modified manometer silicon dioxide using silane-modified nano silica, silica itself has a large amount of hydroxyls Base, agglomeration traits easy to form, to overcome the problems, such as this, using silane as modifying agent, by the hydroxyl and silicon of silica surface Alkane forms reaction, achievees the effect that substitution;Nano silica forms that dispersion is good to be received under the action of polyethylene glycol Rice silica mixed solution, then seals back flow reaction for silane and nano silica, forms silane-modified nano-silica SiClx finally utilizes the dissolubility of silane and polyethylene glycol in dehydrated alcohol, methanol, plays good washing effect, obtain Pure silane-modified nano silica.
The present invention is reacted using the hydroxyl on improved silica surface with the amido in melamine, and good stabilization is formed Valence bond structure, guarantee stable connection between the two, while the characteristic that silica has granularity small, adequately and uniformly divide It is dissipated in melamine, promotes compactness.
Nano-titanium dioxide uses mixed crystal material, and the titanium dioxide of rutile-type has good hardness, low wettability and Stability, can not only play the role of certain photo-catalyst, while can be used as filler, be promoted the hardness of joint trimming agent with it is close Degree;The photochemical catalyst of anatase titanium dioxide can have good photocatalytic degradation bactericidal effect.Titanium dioxide itself has good purple Outside line masking action can alleviate the ultraviolet ageing problem of joint trimming agent significantly, improve the service life of joint trimming agent;Titanium dioxide Itself has nontoxic characteristic, has no toxic side effect and air pollution problems inherent;Nanoscale titanium dioxide itself has good Bright property, can not influence the addition of its pigment.
Nano-titanium dioxide is capable of forming with improved silica cooperates with facilitation, surface both hydrolysis in water The hydroxyl of generation is reacted, it is ensured that is formed good refraction reflection system, is substantially reduced the influence of ultraviolet light;Bactericidal nano-silver Agent itself has the bactericidal effect of silver ion, has stable fungus-resistant effect, while silver ion is to nano-titanium dioxide shape At doping, the response region of nano-titanium dioxide is migrated, guarantees the bactericidal property of nano-titanium dioxide, to form silver in inside Ion-nano-titanium dioxide sterilization system, and the long-time stability of nano-titanium dioxide ensure the stability of fungus-resistant.
Melamine itself has good caking property, is the preferable resin of usability, can in entire reaction system Play the role of binder, while melamine has formaldehyde absorbing effect, can greatly promote environmental-protecting performance.
First dispersing agent uses polyethylene glycol, and water repellent agent uses oleic acid, and oleic acid is capable of forming with polyethylene glycol to react, and Esterification is formed under catalytic action, obtains polyethylene glycol (PEG) oleate, polyethylene glycol (PEG) oleate itself has not oleophylic and not Hydrophilic characteristic can guarantee the long-life performance of joint trimming agent;Matching for the polyethylene glycol and oleic acid in the application is utilized simultaneously Than that can guarantee the not oleophylic water-wet behavior of polyethylene glycol (PEG) oleate.
Oleic acid is reacted using nano-titanium dioxide with polyethylene glycol as catalyst, and will in the way of ultraviolet lighting Nanometer titanium dioxide titanium activator forms hole-electron system, promotes the association rate of oleic acid and polyethylene glycol, guarantees polyethylene glycol The formation of oleate, and polyethylene glycol itself has good dispersibility, it can be evenly dispersed by nano-titanium dioxide, it is ensured that Comprehensive efficient progress of entire esterification.
Second dispersing agent uses Hydroxypropylcelliloxe, and good dispersing characteristic can be formed in system, and The dispersibility of guarantee system itself when esterification occurs for polyethylene glycol, and do not reacted with the formation of other substances, have Some stability;In heated sealed whipping process, Hydroxypropylcelliloxe is precipitated from water, forms self-protection body System, and re-dissolved in water after cooling, continue to retain dispersion;Hydroxypropylcelliloxe itself being capable of conduct Lotion thickening is used, and stability and film forming are splendid;The uniform substituent distribution of Hydroxypropylcelliloxe, and anti-microbial property compared with By force, so forming organic-sterilization system of physics-photoelectricity three.
From the above, it can be seen that the present invention has following advantages:
1. joint trimming agent provided by the invention has permanent waterproof, antimildew and antibacterial, color inhibition, wear-resisting characteristic.
2. preparation method provided by the invention is simple and reliable, highly-safe, it is easy to grasp and safeguard, has and promote well Use value, and can be met customer need by adding different pigment.
3. the present invention has found after tested, can effectively inhibit hair venereal disease poison (such as H5N1 type virus and SARS virus) living and Bacterium (such as Bacillus cercus, salmonella, Escherichia coli, Pseudomonas aeruginosa, staphylococcus aureus, enterococcus, intestinal tube hemorrhagic Coliform, candidiasis, bakers' yeast, black-koji mould, chaetomium globosum, Penicillium notatum, T.mentagrophytes etc.), reduce indoor microorganism Pollution source reduces microbial contamination to the injury of human body and reduces environmental pollution, and forms Trinitarian sterilization system, Germicidal efficiency is high, and effect is good, is not likely to produce drug resistance bacterium.
Specific embodiment
The present invention will be described in detail in conjunction with the embodiments, but does not do any restriction to claim of the invention.
Embodiment 1
A kind of antibacterial joint trimming agent of environment friendly mildew resistant, the quality proportioning of the joint trimming agent are as follows:
127 44 parts of epoxy resin, 10 parts of modified manometer silicon dioxide, 5 parts of melamine, 7 parts of nano-titanium dioxide, One 2 parts of dispersing agent, 7 parts of the second dispersing agent, 2 parts of levelling agent, 2 parts of antioxidant, 2 parts of water repellent agent, 4 parts of antibacterial agent, softened water 5 Part.
The nanometer silicon dioxide particle that the modified manometer silicon dioxide uses silane modifier modified.
The method of modifying of the modified manometer silicon dioxide is as follows:
Step 1, nano silica is put into dehydrated alcohol, polyethylene glycol ultrasonic disperse 20min is then added, obtains The dispersion liquid of nano silica;
Step 2, silane being slowly introducing into dispersion liquid, then sealing stirring seals back flow reaction 2h to being completely dispersed, Suspension is obtained, successively washs using dehydrated alcohol, anhydrous methanol after filtering and obtains silane-modified nano silica.
Further, mass concentration of the nano silica in the step 1 in dehydrated alcohol is 20g/L, described The additional amount of polyethylene glycol is the 40% of nano silica quality, and the additional amount of the silane in the step 2 is nano-silica The 40% of SiClx quality;Ultrasonic disperse in the step 1 is reacted using water bath sonicator, supersonic frequency 30kHz, temperature 3 DEG C, the draft speed being slowly introducing in the step 2 is 10mL/min, mixing speed 1000r/min, the sealing reflux The temperature of reaction is 120 DEG C.
The nano-titanium dioxide uses mixed crystal nano-titanium dioxide, partial size 50nm;The mixed crystal nano-titanium dioxide Including nanometer anatase titania and rutile type nano titanic oxide, the Wastewater by Nanometer Anatase nano-titanium dioxide is in mixed crystal Mass fraction in nano-titanium dioxide total amount is 20%, and nano rutile-type nano-titanium dioxide is in mixed crystal nano-titanium dioxide Mass fraction in total amount is 80%.
First dispersing agent uses polyethylene glycol, and the second dispersing agent uses Hydroxypropylcelliloxe.
The levelling agent uses acrylic resin.
The antibacterial agent uses nano silver antimicrobials.
The water repellent agent uses oleic acid ethanol solution, and mass concentration of the oleic acid in dehydrated alcohol is 30g/L.
The preparation method of the antibacterial joint trimming agent of environment friendly mildew resistant is as follows:
Step 1, nano-titanium dioxide is added into the first dispersing agent, ultrasonic 10min, obtains nano-titanium dioxide dispersion Liquid;
Step 2, water repellent agent is added into nano titanium oxide dispersion, is stirred to react 20min under ultraviolet irradiation condition, Obtain hydrophobic nano-titanium dioxide dispersion liquid;
Step 3, stirring is added into hydrophobic nano-titanium dioxide dispersion liquid in antibacterial agent and modified manometer silicon dioxide It is even, melamine then is added and 127 heated sealed of epoxy resin is stirred to react 2h, obtains dope;
Step 4, antioxidant and levelling agent are added and are stirred evenly into softened water, is then added viscous into step 3 In thick object, joint trimming agent is obtained after stirring.
Ultrasound in the step 1 uses water bath sonicator, and the temperature of the water bath sonicator is 30 DEG C, and supersonic frequency is 20kHz。
In the step 2 stir evenly be stirred to react as 1000r/min, the ultraviolet ray intensity of the ultraviolet lighting is 800mW/cm2, temperature is 25 DEG C.
Mixing speed in the step 3 is 1000r/min, and the temperature that the heated sealed is stirred to react is 70 DEG C, pressure Power is 0.3MPa.
Embodiment 2
A kind of antibacterial joint trimming agent of environment friendly mildew resistant, the quality proportioning of the joint trimming agent are as follows:
127 56 parts of epoxy resin, 15 parts of modified manometer silicon dioxide, 8 parts of melamine, 11 parts of nano-titanium dioxide, One 4 parts of dispersing agent, 9 parts of the second dispersing agent, 4 parts of levelling agent, 5 parts of antioxidant, 5 parts of water repellent agent, 6 parts of antibacterial agent, softened water 10 Part.
The nanometer silicon dioxide particle that the modified manometer silicon dioxide uses silane modifier modified.
The method of modifying of the modified manometer silicon dioxide is as follows:
Step 1, nano silica is put into dehydrated alcohol, polyethylene glycol ultrasonic disperse 50min is then added, obtains The dispersion liquid of nano silica;
Step 2, silane being slowly introducing into dispersion liquid, then sealing stirring seals back flow reaction 4h to being completely dispersed, Suspension is obtained, successively washs using dehydrated alcohol, anhydrous methanol after filtering and obtains silane-modified nano silica.
Further, mass concentration of the nano silica in the step 1 in dehydrated alcohol is 40g/L, described The additional amount of polyethylene glycol is the 60% of nano silica quality, and the additional amount of the silane in the step 2 is nano-silica The 70% of SiClx quality;Ultrasonic disperse in the step 1 is reacted using water bath sonicator, supersonic frequency 50kHz, temperature 60 DEG C, the draft speed being slowly introducing in the step 2 is 15mL/min, mixing speed 2000r/min, the sealing reflux The temperature of reaction is 130 DEG C.
The nano-titanium dioxide uses mixed crystal nano-titanium dioxide, partial size 300nm;The mixed crystal nano-titanium dioxide Including nanometer anatase titania and rutile type nano titanic oxide, the Wastewater by Nanometer Anatase nano-titanium dioxide is in mixed crystal Mass fraction in nano-titanium dioxide total amount is 30%, and nano rutile-type nano-titanium dioxide is in mixed crystal nano-titanium dioxide Mass fraction in total amount is 70%.
First dispersing agent uses polyethylene glycol, and the second dispersing agent uses Hydroxypropylcelliloxe.
The levelling agent uses Lauxite.
The antibacterial agent uses nano silver antimicrobials.
The water repellent agent uses oleic acid ethanol solution, and mass concentration of the oleic acid in dehydrated alcohol is 50g/L.
The preparation method of the antibacterial joint trimming agent of environment friendly mildew resistant is as follows:
Step 1, nano-titanium dioxide is added into the first dispersing agent, ultrasonic 25min, obtains nano-titanium dioxide dispersion Liquid;
Step 2, water repellent agent is added into nano titanium oxide dispersion, is stirred to react 30min under ultraviolet irradiation condition, Obtain hydrophobic nano-titanium dioxide dispersion liquid;
Step 3, stirring is added into hydrophobic nano-titanium dioxide dispersion liquid in antibacterial agent and modified manometer silicon dioxide It is even, melamine then is added and 127 heated sealed of epoxy resin is stirred to react 3h, obtains dope;
Step 4, antioxidant and levelling agent are added and are stirred evenly into softened water, is then added viscous into step 3 In thick object, joint trimming agent is obtained after stirring.
Ultrasound in the step 1 uses water bath sonicator, and the temperature of the water bath sonicator is 60 DEG C, and supersonic frequency is 25kHz。
In the step 2 stir evenly be stirred to react as 2000r/min, the ultraviolet ray intensity of the ultraviolet lighting is 1500mW/cm2, temperature is 35 DEG C.
Mixing speed in the step 3 is 2000r/min, and the temperature that the heated sealed is stirred to react is 80 DEG C, pressure Power is 0.5MPa.
Embodiment 3
A kind of antibacterial joint trimming agent of environment friendly mildew resistant, the quality proportioning of the joint trimming agent are as follows:
127 48 parts of epoxy resin, 12 parts of modified manometer silicon dioxide, 6 parts of melamine, 9 parts of nano-titanium dioxide, One 3 parts of dispersing agent, 8 parts of the second dispersing agent, 3 parts of levelling agent, 3 parts of antioxidant, 3 parts of water repellent agent, 5 parts of antibacterial agent, softened water 7 Part.
The nanometer silicon dioxide particle that the modified manometer silicon dioxide uses silane modifier modified.
The method of modifying of the modified manometer silicon dioxide is as follows:
Step 1, nano silica is put into dehydrated alcohol, polyethylene glycol ultrasonic disperse 40min is then added, obtains The dispersion liquid of nano silica;
Step 2, silane being slowly introducing into dispersion liquid, then sealing stirring seals back flow reaction 3h to being completely dispersed, Suspension is obtained, successively washs using dehydrated alcohol, anhydrous methanol after filtering and obtains silane-modified nano silica.
Further, mass concentration of the nano silica in the step 1 in dehydrated alcohol is 30g/L, described The additional amount of polyethylene glycol is the 50% of nano silica quality, and the additional amount of the silane in the step 2 is nano-silica The 50% of SiClx quality;Ultrasonic disperse in the step 1 is reacted using water bath sonicator, supersonic frequency 40kHz, temperature 50 DEG C, the draft speed being slowly introducing in the step 2 is 13mL/min, mixing speed 1500r/min, the sealing reflux The temperature of reaction is 125 DEG C.
The nano-titanium dioxide uses mixed crystal nano-titanium dioxide, partial size 200nm;The mixed crystal nano-titanium dioxide Including nanometer anatase titania and rutile type nano titanic oxide, the Wastewater by Nanometer Anatase nano-titanium dioxide is in mixed crystal Mass fraction in nano-titanium dioxide total amount is 25%, and nano rutile-type nano-titanium dioxide is in mixed crystal nano-titanium dioxide Mass fraction in total amount is 75%.
First dispersing agent uses polyethylene glycol, and the second dispersing agent uses Hydroxypropylcelliloxe.
The levelling agent uses acrylic resin.
The antibacterial agent uses nano silver antimicrobials.
The water repellent agent uses oleic acid ethanol solution, and mass concentration of the oleic acid in dehydrated alcohol is 35g/L.
The preparation method of the antibacterial joint trimming agent of environment friendly mildew resistant is as follows:
Step 1, nano-titanium dioxide is added into the first dispersing agent, ultrasonic 15min, obtains nano-titanium dioxide dispersion Liquid;
Step 2, water repellent agent is added into nano titanium oxide dispersion, is stirred to react 22min under ultraviolet irradiation condition, Obtain hydrophobic nano-titanium dioxide dispersion liquid;
Step 3, stirring is added into hydrophobic nano-titanium dioxide dispersion liquid in antibacterial agent and modified manometer silicon dioxide It is even, melamine then is added and 127 heated sealed of epoxy resin is stirred to react 2h, obtains dope;
Step 4, antioxidant and levelling agent are added and are stirred evenly into softened water, is then added viscous into step 3 In thick object, joint trimming agent is obtained after stirring.
Ultrasound in the step 1 uses water bath sonicator, and the temperature of the water bath sonicator is 40 DEG C, and supersonic frequency is 23kHz。
In the step 2 stir evenly be stirred to react as 1500r/min, the ultraviolet ray intensity of the ultraviolet lighting is 1200mW/cm2, temperature is 30 DEG C.
Mixing speed in the step 3 is 1500r/min, and the temperature that the heated sealed is stirred to react is 75 DEG C, pressure Power is 0.4MPa.
Embodiment 4
A kind of antibacterial joint trimming agent of environment friendly mildew resistant, the quality proportioning of the joint trimming agent are as follows:
127 46 parts of epoxy resin, 13 parts of modified manometer silicon dioxide, 6 parts of melamine, 8 parts of nano-titanium dioxide, One 3 parts of dispersing agent, 7 parts of the second dispersing agent, 3 parts of levelling agent, 3 parts of antioxidant, 3 parts of water repellent agent, 5 parts of antibacterial agent, softened water 9 Part.
The nanometer silicon dioxide particle that the modified manometer silicon dioxide uses silane modifier modified.
The method of modifying of the modified manometer silicon dioxide is as follows:
Step 1, nano silica is put into dehydrated alcohol, polyethylene glycol ultrasonic disperse 30min is then added, obtains The dispersion liquid of nano silica;
Step 2, silane being slowly introducing into dispersion liquid, then sealing stirring seals back flow reaction 3h to being completely dispersed, Suspension is obtained, successively washs using dehydrated alcohol, anhydrous methanol after filtering and obtains silane-modified nano silica.
Further, mass concentration of the nano silica in the step 1 in dehydrated alcohol is 25g/L, described The additional amount of polyethylene glycol is the 45% of nano silica quality, and the additional amount of the silane in the step 2 is nano-silica The 50% of SiClx quality;Ultrasonic disperse in the step 1 is reacted using water bath sonicator, supersonic frequency 35kHz, temperature 40 DEG C, the draft speed being slowly introducing in the step 2 is 12mL/min, mixing speed 1300r/min, the sealing reflux The temperature of reaction is 123 DEG C.
The nano-titanium dioxide uses mixed crystal nano-titanium dioxide, partial size 150nm;The mixed crystal nano-titanium dioxide Including nanometer anatase titania and rutile type nano titanic oxide, the Wastewater by Nanometer Anatase nano-titanium dioxide is in mixed crystal Mass fraction in nano-titanium dioxide total amount is 28%, and nano rutile-type nano-titanium dioxide is in mixed crystal nano-titanium dioxide Mass fraction in total amount is 72%.
First dispersing agent uses polyethylene glycol, and the second dispersing agent uses Hydroxypropylcelliloxe.
The levelling agent uses acrylic resin.
The antibacterial agent uses nano silver antimicrobials.
The water repellent agent uses oleic acid ethanol solution, and mass concentration of the oleic acid in dehydrated alcohol is 30-50g/L.
The preparation method of the antibacterial joint trimming agent of environment friendly mildew resistant is as follows:
Step 1, nano-titanium dioxide is added into the first dispersing agent, ultrasonic 10-25min obtains nano-titanium dioxide Dispersion liquid;
Step 2, water repellent agent is added into nano titanium oxide dispersion, is stirred to react 20- under ultraviolet irradiation condition 30min obtains hydrophobic nano-titanium dioxide dispersion liquid;
Step 3, stirring is added into hydrophobic nano-titanium dioxide dispersion liquid in antibacterial agent and modified manometer silicon dioxide It is even, melamine then is added and 127 heated sealed of epoxy resin is stirred to react 2-3h, obtains dope;
Step 4, antioxidant and levelling agent are added and are stirred evenly into softened water, is then added viscous into step 3 In thick object, joint trimming agent is obtained after stirring.
Ultrasound in the step 1 uses water bath sonicator, and the temperature of the water bath sonicator is 40 DEG C, and supersonic frequency is 23kHz。
In the step 2 stir evenly be stirred to react as 1300r/min, the ultraviolet ray intensity of the ultraviolet lighting is 1000mW/cm2, temperature is 30 DEG C.
Mixing speed in the step 3 is 1300r/min, and the temperature that the heated sealed is stirred to react is 75 DEG C, pressure Power is 0.4MPa.
Embodiment 5
A kind of antibacterial joint trimming agent of environment friendly mildew resistant, the quality proportioning of the joint trimming agent are as follows:
127 53 parts of epoxy resin, 12 parts of modified manometer silicon dioxide, 7 parts of melamine, 10 parts of nano-titanium dioxide, One 3 parts of dispersing agent, 9 parts of the second dispersing agent, 4 parts of levelling agent, 4 parts of antioxidant, 4 parts of water repellent agent, 6 parts of antibacterial agent, softened water 7 Part.
The nanometer silicon dioxide particle that the modified manometer silicon dioxide uses silane modifier modified.
The method of modifying of the modified manometer silicon dioxide is as follows:
Step 1, nano silica is put into dehydrated alcohol, polyethylene glycol ultrasonic disperse 30min is then added, obtains The dispersion liquid of nano silica;
Step 2, silane being slowly introducing into dispersion liquid, then sealing stirring seals back flow reaction 3h to being completely dispersed, Suspension is obtained, successively washs using dehydrated alcohol, anhydrous methanol after filtering and obtains silane-modified nano silica.
Further, mass concentration of the nano silica in the step 1 in dehydrated alcohol is 35g/L, described The additional amount of polyethylene glycol is the 55% of nano silica quality, and the additional amount of the silane in the step 2 is nano-silica The 60% of SiClx quality;Ultrasonic disperse in the step 1 is reacted using water bath sonicator, supersonic frequency 45kHz, temperature 50 DEG C, the draft speed being slowly introducing in the step 2 is 14mL/min, mixing speed 1800r/min, the sealing reflux The temperature of reaction is 125 DEG C.
The nano-titanium dioxide uses mixed crystal nano-titanium dioxide, partial size 250nm;The mixed crystal nano-titanium dioxide Including nanometer anatase titania and rutile type nano titanic oxide, the Wastewater by Nanometer Anatase nano-titanium dioxide is in mixed crystal Mass fraction in nano-titanium dioxide total amount is 22%, and nano rutile-type nano-titanium dioxide is in mixed crystal nano-titanium dioxide Mass fraction in total amount is 78%.
First dispersing agent uses polyethylene glycol, and the second dispersing agent uses Hydroxypropylcelliloxe.
The levelling agent uses Lauxite.
The antibacterial agent uses nano silver antimicrobials.
The water repellent agent uses oleic acid ethanol solution, and mass concentration of the oleic acid in dehydrated alcohol is 45g/L.
The preparation method of the antibacterial joint trimming agent of environment friendly mildew resistant is as follows:
Step 1, nano-titanium dioxide is added into the first dispersing agent, ultrasonic 20min, obtains nano-titanium dioxide dispersion Liquid;
Step 2, water repellent agent is added into nano titanium oxide dispersion, is stirred to react 28min under ultraviolet irradiation condition, Obtain hydrophobic nano-titanium dioxide dispersion liquid;
Step 3, stirring is added into hydrophobic nano-titanium dioxide dispersion liquid in antibacterial agent and modified manometer silicon dioxide It is even, melamine then is added and 127 heated sealed of epoxy resin is stirred to react 3h, obtains dope;
Step 4, antioxidant and levelling agent are added and are stirred evenly into softened water, is then added viscous into step 3 In thick object, joint trimming agent is obtained after stirring.
Ultrasound in the step 1 uses water bath sonicator, and the temperature of the water bath sonicator is 55 DEG C, and supersonic frequency is 24kHz。
In the step 2 stir evenly be stirred to react as 1800r/min, the ultraviolet ray intensity of the ultraviolet lighting is 1400mW/cm2, temperature is 33 DEG C.
Mixing speed in the step 3 is 1800r/min, and the temperature that the heated sealed is stirred to react is 75 DEG C, pressure Power is 0.4MPa.
Performance test
Comparative example uses commercially available joint trimming agent, shore hardness 72, and yellowing resistance aspect is to turn yellow for 4 months, and glossiness is 72, it is 76 ° that water, which contacts glue, no bactericidal property, tensile strength 2.8MPa.
In conclusion the present invention has the following advantages that:
1. joint trimming agent provided by the invention has permanent waterproof, antimildew and antibacterial, color inhibition, wear-resisting characteristic.
2. preparation method provided by the invention is simple and reliable, highly-safe, it is easy to grasp and safeguard, has and promote well Use value, and can be met customer need by adding different pigment.
3. the present invention has found after tested, can effectively inhibit hair venereal disease poison (such as H5N1 type virus and SARS virus) living and Bacterium (such as Bacillus cercus, salmonella, Escherichia coli, Pseudomonas aeruginosa, staphylococcus aureus, enterococcus, intestinal tube hemorrhagic Coliform, candidiasis, bakers' yeast, black-koji mould, chaetomium globosum, Penicillium notatum, T.mentagrophytes etc.), reduce indoor microorganism Pollution source reduces microbial contamination to the injury of human body and reduces environmental pollution, and forms Trinitarian sterilization system, Germicidal efficiency is high, and effect is good, is not likely to produce drug resistance bacterium.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this Technical solution described in inventive embodiments.Those skilled in the art should understand that still can be carried out to the present invention Modification or equivalent replacement, to reach identical technical effect;As long as meet use needs, all protection scope of the present invention it It is interior.

Claims (10)

1. a kind of antibacterial joint trimming agent of environment friendly mildew resistant, it is characterised in that:The quality proportioning of the joint trimming agent is as follows:
127 44-56 parts of epoxy resin, 10-15 parts of modified manometer silicon dioxide, 5-8 parts of melamine, nano-titanium dioxide 7- 11 parts, it is 2-4 parts of the first dispersing agent, 7-9 parts of the second dispersing agent, 2-4 parts of levelling agent, 2-5 parts of antioxidant, 2-5 parts of water repellent agent, anti- 4-6 parts of microbial inoculum, 5-10 parts of softened water.
2. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 1, it is characterised in that:The modified nano-silica The nanometer silicon dioxide particle that silicon uses silane modifier modified.
3. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 2, it is characterised in that:The modified nano-silica The method of modifying of silicon is as follows:
Step 1, nano silica is put into dehydrated alcohol, polyethylene glycol ultrasonic disperse 20-50min is then added, obtains The dispersion liquid of nano silica;
Step 2, silane is slowly introducing into dispersion liquid, then sealing stirring seals back flow reaction 2-4h, obtain to being completely dispersed To suspension, successively washs using dehydrated alcohol, anhydrous methanol after filtering and obtain silane-modified nano silica.
4. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 3, it is characterised in that:Nanometer in the step 1 Mass concentration of the silica in dehydrated alcohol is 20-40g/L, and the additional amount of the polyethylene glycol is that nanometer titanium dioxide is siliceous The additional amount of the 40-60% of amount, the silane in the step 2 are the 40-70% of nano silica quality;In the step 1 Ultrasonic disperse reacted using water bath sonicator, supersonic frequency 30-50kHz, temperature is 30-60 DEG C, slow in the step 2 The draft speed being passed through is 10-15mL/min, mixing speed 1000-2000r/min, and the temperature of the sealing back flow reaction is 120-130℃。
5. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 1, it is characterised in that:The nano-titanium dioxide is adopted With mixed crystal nano-titanium dioxide, partial size 50-300nm;The mixed crystal nano-titanium dioxide includes nanometer anatase titania And rutile type nano titanic oxide, matter of the Wastewater by Nanometer Anatase nano-titanium dioxide in mixed crystal nano-titanium dioxide total amount Amount score is 20-30%, and mass fraction of the nano rutile-type nano-titanium dioxide in mixed crystal nano-titanium dioxide total amount is 70-80%.
6. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 1, it is characterised in that:First dispersing agent uses Polyethylene glycol;Second dispersing agent uses Hydroxypropylcelliloxe.
7. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 1, it is characterised in that:The levelling agent uses propylene Acid resin or Lauxite.
8. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 1, it is characterised in that:The antibacterial agent uses nanometer Silver antibacterial agent.
9. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 1, it is characterised in that:The water repellent agent uses oleic acid Ethanol solution, mass concentration of the oleic acid in dehydrated alcohol are 30-50g/L.
10. the antibacterial joint trimming agent of a kind of environment friendly mildew resistant according to claim 1, it is characterised in that:The environment friendly mildew resistant is antibacterial The preparation method of joint trimming agent is as follows:
Step 1, nano-titanium dioxide is added into the first dispersing agent, ultrasonic 10-25min, obtains nano-titanium dioxide dispersion Liquid;
Step 2, water repellent agent is added into nano titanium oxide dispersion, is stirred to react 20-30min under ultraviolet irradiation condition, Obtain hydrophobic nano-titanium dioxide dispersion liquid;
Step 3, antibacterial agent and modified manometer silicon dioxide are added into hydrophobic nano-titanium dioxide dispersion liquid and are stirred evenly, so Melamine is added afterwards and 127 heated sealed of epoxy resin is stirred to react 2-3h, obtains dope;
Step 4, antioxidant and levelling agent are added and are stirred evenly into softened water, the dope into step 3 is then added In, joint trimming agent is obtained after stirring;
Ultrasound in the step 1 uses water bath sonicator, and the temperature of the water bath sonicator is 30-60 DEG C, supersonic frequency 20- 25kHz;
In the step 2 stir evenly be stirred to react as 1000-2000r/min, the ultraviolet ray intensity of the ultraviolet lighting It is 800-1500mW/cm2, temperature is 25-35 DEG C;
Mixing speed in the step 3 is 1000-2000r/min, and the temperature that the heated sealed is stirred to react is 70-80 DEG C, pressure 0.3-0.5MPa.
CN201810490117.0A 2018-05-21 2018-05-21 A kind of antibacterial joint trimming agent of environment friendly mildew resistant Pending CN108841285A (en)

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