CN105524501B - A kind of super-hydrophobic oleophobic Nano self-cleaning coating and preparation method thereof - Google Patents
A kind of super-hydrophobic oleophobic Nano self-cleaning coating and preparation method thereof Download PDFInfo
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- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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Abstract
A kind of super-hydrophobic oleophobic Nano self-cleaning coating, its raw material composition and weight part ratio are as follows: nanoparticle aqueous solution 20~30, fluoropolymer 8~10, auxiliary agent 4.8~25.1, water 30~40, when preparation, first add water in high-speed shearing machine, sequentially add part of auxiliary, nanoparticle aqueous solution is stirred evenly to obtain mixed liquor, fluoropolymer is then added into mixed liquor, remaining auxiliary agent stirs evenly.The design not only has good hydrophobic, oleophobic and a self-cleaning function, and it is easy to use, use scope is wide.
Description
Technical field
The invention belongs to amphiphobic material fields, and in particular to a kind of super-hydrophobic oleophobic Nano self-cleaning coating and its preparation side
Method is mainly used in the surface spraying of the materials such as building, plastics, ceramics, textile, leather, timber, automobile, clothing.
Background technique
Currently, the coating usually presence in the market with super-hydrophobic, oleophobic and self-cleaning characteristic has a single function, adhesive force
Difference does not have the problems such as wearability, and many products effect in continuous use can fade away, it is difficult to tackle the pollution of water, oil.
Such as some building places, public place of entertainment, it is desirable that it is colourful and clean beautiful, this requires building surface have it is self-cleaning
Function will not be contaminated, and can keep beautiful appearance for a long time.
Chinese patent: Authorization Notice No. CN103436138B, the patent of invention in authorized announcement date on October 28th, 2015 are public
Opened a kind of super-hydrophobic or super-amphiphobic coating the preparation method and application of stable transparent, preparation step is as follows: by nanoparticle,
Epoxy resin and solvent are blended to obtain epoxy resin hydridization solution；Fluorine-containing material and catalyst are dissolved in solvent and are prepared into
To fluorine-containing solution；By epoxy resin hydridization solution spraying to substrate surface, then by the substrate temperature be 80~130 DEG C at dry
0.5~5 hour, then above-mentioned fluorine-containing solution spraying is done and then by above-mentioned substrate to solvent volatilization in temperature in substrate surface
Degree is to dry at 80~130 DEG C 0.5~5 hour, finally uses solvent washing substrate surface.Although the super-hydrophobic or super-amphiphobic
The hydrophobic oleophobic that coating can be applied to most substrate surfaces is modified, but still has the following deficiencies:
Inorganic nano-particle is mainly bonded in substrate surface using epoxy resin when in use by above-mentioned coating, and by low table
The fluoropolymer of face energy is also grafted on coating, i.e., is adhered to using the method for solidifying crosslinking, therefore need after spray coating
The processing such as repeated drying is carried out to substrate, not only makes complex process, time-consuming and laborious, but also also limit its use scope, it is right
In the object directly contacted with people, such as clothes, electric appliance, daily necessities not can be carried out drying, heat treatment substrate and be not suitable for.
Summary of the invention
It is of the existing technology narrow using complex process, use scope the purpose of the present invention is overcoming the problems, such as, provide one
Kind super-hydrophobic oleophobic Nano self-cleaning coating and preparation method thereof wide using easy, use scope.
In order to achieve the above object, the present invention provides following technical schemes:
A kind of super-hydrophobic oleophobic Nano self-cleaning coating, raw material composition and its weight part ratio are as follows: nanoparticle aqueous solution 20
~30, fluoropolymer 8~10, auxiliary agent 4.8~25.1, water 30~40.
The raw material of the nanoparticle aqueous solution forms and its weight part ratio are as follows: nanoparticle 15~20, water 80~100,
No.1 dispersing agent 0.8~1, wetting agent 0.5~1；
The nanoparticle is nanometer anatase titania, and the fluoropolymer is Hexafluorobutyl mathacrylate.
The raw material of the auxiliary agent forms and its weight part ratio are as follows: mould inhibitor 0.5~1, defoaming agent 0.2~0.6, antifreezing agent
1.2~1.6, coalescing agent 2.1~3, fluorocarbon surfactant 0.1~0.3, hydrophobic auxiliary agent 0.5~1, pH adjusting agent 0.2~
0.8。
The auxiliary agent further includes No. two dispersing agents, fillers, the weight of No. two dispersing agents and fluorocarbon surfactant
Part is than being 0.4~0.8: 0.1~0.3, the raw material composition and weight part ratio of the filler are as follows: titanium dioxide 5~8, calcite 2~
4, wollastonite powder 2~4.
The No.1 dispersing agent is dispersing agent 5040, and the wetting agent is wetting agent PE-100, and No. two dispersing agents are
Dispersing agent HT-5020, the mould inhibitor are isothiazolinone compound, and the defoaming agent is defoaming agent BX-825A, described anti-
Jelly agent is multicomponent alcoholics compound, and the coalescing agent is Lauryl Alcohol ester, and the fluorocarbon surfactant is perfluoroalkyl second
Oxygroup methyl ether, the hydrophobic auxiliary agent are AS-CP305, and the pH adjusting agent is AMP-95.
A kind of preparation method of the super-hydrophobic oleophobic Nano self-cleaning coating, successively the following steps are included:
Step 1: first adding water in high-speed shearing machine, sequentially adds part of auxiliary, the stirring of nanoparticle aqueous solution
It is even to obtain mixed liquor；
Step 2: fluoropolymer is added into mixed liquor, remaining auxiliary agent stirs evenly and obtains super-hydrophobic oleophobic nanometer
Self-cleaning coating.
The nanoparticle aqueous solution is added high speed in required ratio and is cut by nanoparticle, water, No.1 dispersing agent, wetting agent
The stirring of machine high speed is cut to be made, wherein the nanoparticle, water, No.1 dispersing agent and wetting agent weight part ratio be 15~20:
80~100: 0.8~1: 0.5~1.
The raw material of the auxiliary agent forms and its weight part ratio are as follows: mould inhibitor 0.5~1, defoaming agent 0.2~0.6, antifreezing agent
1.2~1.6, coalescing agent 2.1~3, fluorocarbon surfactant 0.1~0.3, hydrophobic auxiliary agent 0.5~1, pH adjusting agent 0.2~
0.8；
The step 1 refers to: first add water in high-speed shearing machine, sequentially add mould inhibitor, defoaming agent, antifreezing agent,
Coalescing agent, nanoparticle aqueous solution are stirred evenly to obtain mixed liquor, wherein the mould inhibitor, defoaming agent, antifreezing agent, at
The weight part ratio of film auxiliary agent and nanoparticle aqueous solution is 0.5~1: 0.1~0.3: 1.2~1.6: 1.6~2: 20~30；
The step 2 refers to: fluoropolymer being first added into mixed liquor, fluorocarbon surfactant, hydrophobic auxiliary agent, disappears
Infusion, coalescing agent stir evenly, and add pH adjusting agent, wherein the fluoropolymer, fluorocarbon surfactant, hydrophobic
Auxiliary agent, defoaming agent, coalescing agent and pH adjusting agent weight part ratio be 8~10: 0.1~0.3: 0.5~1: 0.1~0.3: 0.5
~1: 0.2~0.8.
The auxiliary agent further includes No. two dispersing agents, fillers, the weight of No. two dispersing agents and fluorocarbon surfactant
Part is than being 0.4~0.8: 0.1~0.3, the raw material composition and weight part ratio of the filler are as follows: titanium dioxide 5~8, calcite 2~
4, wollastonite powder 2~4；
In the step 1, after adding water in high-speed shearing machine, No. two dispersing agents is first added, sequentially add mould proof
Agent, defoaming agent, antifreezing agent, coalescing agent, nanoparticle aqueous solution stir evenly；
In the step 2, the pH value that pH adjusting agent regulation system is added is 7~8；
The preparation method further includes the addition step of filler, and the step is between step 1 and step 2；
The addition step of the filler refers to: filler being added into mixed liquor and stirs evenly.
During preparing the nanometer titanium dioxide titanium solution, the revolving speed of high-speed shearing machine is 7000~9000 turns/
Min, mixing time are 30~50min；
In the step 1, the revolving speed of high-speed shearing machine is 5000~6000 turns/min, and mixing time is 15~20min；
In the addition step of the filler, step 2, mixing time is 10~15min；
The nanoparticle is nanometer anatase titania, and the fluoropolymer is Hexafluorobutyl mathacrylate,
The No.1 dispersing agent is dispersing agent 5040, and the wetting agent is wetting agent PE-100, and No. two dispersing agents are dispersing agent HT-
5020, the mould inhibitor is isothiazolinone compound, and the defoaming agent is defoaming agent BX-825A, and the antifreezing agent is more
First alcohol compound, the coalescing agent are Lauryl Alcohol ester, and the fluorocarbon surfactant is perfluoroalkyl ethyoxyl methyl ether,
The hydrophobic auxiliary agent is AS-CP305, and the pH adjusting agent is AMP-95.
Compared with prior art, the invention has the benefit that
1, the raw material composition and its weight part ratio of a kind of super-hydrophobic oleophobic Nano self-cleaning coating of the present invention are as follows: nanoparticle water
Solution 20~30, fluoropolymer 8~10, auxiliary agent 4.8~25.1, water 30~40, the coating are that viscosity is lower aqueous spraying
Coating, on the one hand, substrate surface is directly sprayed into when use to form the corroded by liquid such as prevention water, oil in substrate surface
Air conservation film, have " lotus leaf effect ", ensure that its good hydrophobic, oleophobic and self-cleaning function；Another party
Face, 20~30min can be dried after spraying the coating, and using preceding without handling substrate, when use is also not required to heating and dries
It is dry, it is not only easy to operate, and also use scope is wider.Therefore, the present invention not only has good hydrophobic, oleophobic and automatically cleaning
Function, and it is easy to use, use scope is wide.
2, a kind of preparation method of super-hydrophobic oleophobic Nano self-cleaning coating of the present invention makes nanoparticle using high-speed shearing machine
It is evenly dispersed in water, after coating sprays to substrate surface, it will form highdensity network structure to protect substrate, thus greatly
Amplitude improves adhesive effect, meanwhile, the nanometer column structure that nanoparticle can be arranged in substrate surface formation rule, the structure
It ensure that the roughness of substrate surface, so that superpower wearability is made it have, suitable for a variety of bases required to wearability
Material.Therefore, this method significantly improves adhesive force and wearability.
Specific embodiment
The invention will be further described With reference to embodiment.
A kind of super-hydrophobic oleophobic Nano self-cleaning coating, raw material composition and its weight part ratio are as follows: nanoparticle aqueous solution 20
~30, fluoropolymer 8~10, auxiliary agent 4.8~25.1, water 30~40.
The raw material of the nanoparticle aqueous solution forms and its weight part ratio are as follows: nanoparticle 15~20, water 80~100,
No.1 dispersing agent 0.8~1, wetting agent 0.5~1；
The nanoparticle is nanometer anatase titania, and the fluoropolymer is Hexafluorobutyl mathacrylate.
The raw material of the auxiliary agent forms and its weight part ratio are as follows: mould inhibitor 0.5~1, defoaming agent 0.2~0.6, antifreezing agent
1.2~1.6, coalescing agent 2.1~3, fluorocarbon surfactant 0.1~0.3, hydrophobic auxiliary agent 0.5~1, pH adjusting agent 0.2~
0.8。
The auxiliary agent further includes No. two dispersing agents, fillers, the weight of No. two dispersing agents and fluorocarbon surfactant
Part is than being 0.4~0.8: 0.1~0.3, the raw material composition and weight part ratio of the filler are as follows: titanium dioxide 5~8, calcite 2~
4, wollastonite powder 2~4.
The No.1 dispersing agent is dispersing agent 5040, and the wetting agent is wetting agent PE-100, and No. two dispersing agents are
Dispersing agent HT-5020, the mould inhibitor are isothiazolinone compound, and the defoaming agent is defoaming agent BX-825A, described anti-
Jelly agent is multicomponent alcoholics compound, and the coalescing agent is Lauryl Alcohol ester, and the fluorocarbon surfactant is perfluoroalkyl second
Oxygroup methyl ether, the hydrophobic auxiliary agent are AS-CP305, and the pH adjusting agent is AMP-95.
A kind of preparation method of the super-hydrophobic oleophobic Nano self-cleaning coating, successively the following steps are included:
Step 1: first adding water in high-speed shearing machine, sequentially adds part of auxiliary, the stirring of nanoparticle aqueous solution
It is even to obtain mixed liquor；
Step 2: fluoropolymer is added into mixed liquor, remaining auxiliary agent stirs evenly and obtains super-hydrophobic oleophobic nanometer
Self-cleaning coating.
The nanoparticle aqueous solution is added high speed in required ratio and is cut by nanoparticle, water, No.1 dispersing agent, wetting agent
The stirring of machine high speed is cut to be made, wherein the nanoparticle, water, No.1 dispersing agent and wetting agent weight part ratio be 15~20:
80~100: 0.8~1: 0.5~1.
The raw material of the auxiliary agent forms and its weight part ratio are as follows: mould inhibitor 0.5~1, defoaming agent 0.2~0.6, antifreezing agent
1.2~1.6, coalescing agent 2.1~3, fluorocarbon surfactant 0.1~0.3, hydrophobic auxiliary agent 0.5~1, pH adjusting agent 0.2~
0.8；
The step 1 refers to: first add water in high-speed shearing machine, sequentially add mould inhibitor, defoaming agent, antifreezing agent,
Coalescing agent, nanoparticle aqueous solution are stirred evenly to obtain mixed liquor, wherein the mould inhibitor, defoaming agent, antifreezing agent, at
The weight part ratio of film auxiliary agent and nanoparticle aqueous solution is 0.5~1: 0.1~0.3: 1.2~1.6: 1.6~2: 20~30；
The step 2 refers to: fluoropolymer being first added into mixed liquor, fluorocarbon surfactant, hydrophobic auxiliary agent, disappears
Infusion, coalescing agent stir evenly, and add pH adjusting agent, wherein the fluoropolymer, fluorocarbon surfactant, hydrophobic
Auxiliary agent, defoaming agent, coalescing agent and pH adjusting agent weight part ratio be 8~10: 0.1~0.3: 0.5~1: 0.1~0.3: 0.5
~1: 0.2~0.8.
The auxiliary agent further includes No. two dispersing agents, fillers, the weight of No. two dispersing agents and fluorocarbon surfactant
Part is than being 0.4~0.8: 0.1~0.3, the raw material composition and weight part ratio of the filler are as follows: titanium dioxide 5~8, calcite 2~
4, wollastonite powder 2~4；
In the step 1, after adding water in high-speed shearing machine, No. two dispersing agents is first added, sequentially add mould proof
Agent, defoaming agent, antifreezing agent, coalescing agent, nanoparticle aqueous solution stir evenly；
In the step 2, the pH value that pH adjusting agent regulation system is added is 7~8；
The preparation method further includes the addition step of filler, and the step is between step 1 and step 2；
The addition step of the filler refers to: filler being added into mixed liquor and stirs evenly.
During preparing the nanometer titanium dioxide titanium solution, the revolving speed of high-speed shearing machine is 7000~9000 turns/
Min, mixing time are 30~50min；
In the step 1, the revolving speed of high-speed shearing machine is 5000~6000 turns/min, and mixing time is 15~20min；
In the addition step of the filler, step 2, mixing time is 10~15min；
The nanoparticle is nanometer anatase titania, and the fluoropolymer is Hexafluorobutyl mathacrylate,
The No.1 dispersing agent is dispersing agent 5040, and the wetting agent is wetting agent PE-100, and No. two dispersing agents are dispersing agent HT-
5020, the mould inhibitor is isothiazolinone compound, and the defoaming agent is defoaming agent BX-825A, and the antifreezing agent is more
First alcohol compound, the coalescing agent are Lauryl Alcohol ester, and the fluorocarbon surfactant is perfluoroalkyl ethyoxyl methyl ether,
The hydrophobic auxiliary agent is AS-CP305, and the pH adjusting agent is AMP-95.
The principle of the present invention is described as follows:
Coating of the present invention has " lotus leaf effect ", and hydrophobic, oleophobic and self-cleaning function are excellent, and environment-protecting and non-poisonous, protection is effectively
Duration, and it is suitable for a variety of body surfaces, it is easy to use.
After coating of the present invention is sprayed to substrate surface, aqueous solvent volatilization, evenly dispersed nanoparticle will form rule
The nanometer column structure (for the diameter of nano-pillar in 60~70nm, the spacing of nano-pillar is in 180nm or so) of arrangement, it is regularly arranged
Roughness constructed by nanometer protrusion enables its surface to stablize one layer of air conservation film of absorption, thus super-hydrophobic induction of its
Property, it is ensured that self-cleaning function.
In addition, the raw material order of addition in the method for the present invention ensure that the dispersibility of raw material is best, the coating property of formation
It is optimal.
Raw material of the present invention is described as follows:
Nanometer anatase titania: fluffy white powder；
Hexafluorobutyl mathacrylate: colourless transparent liquid, the production of Harbin Xue Jiafu chemistry of silicones Co., Ltd；
No.1 dispersing agent: model 5040, it is colourless to light yellow transparent liquid, 1% aqueous solution, pH value 7.0 ± 1；
Wetting agent: model PE-100, pale yellow clear liquid, 10% aqueous solution, pH value 7~8, break Thailand of Nantong City chemical industry
Co., Ltd's production；
No. two dispersing agents: model HT-5020, colourless transparent liquid, pH value 7~9 help wetting and dispersing filler, Nantong
The production of Han Tai Chemical Co., Ltd. of city；
Mould inhibitor: isothiazolinone compound, environment-friendly type, milky white liquid have efficient, wide spectrum, anti-algae, stabilization,
The feature of environmental protection, the production of Co., Ltd of He Te global group；
Defoaming agent: model BX-825A, milky white liquid, Shanghai Boyihe Chemical Industry Co., Ltd.'s production；
Antifreezing agent: multicomponent alcoholics compound, colourless transparent liquid, the production of Dongguan City Rui Qi Chemical Co., Ltd.；
Coalescing agent: Lauryl Alcohol ester, colourless transparent oil liquid, the production of Abel Chemical Co., Ltd. of Foshan City；
Fluorocarbon surfactant: fluoroalkyl ethyoxyl methyl ether, light yellow viscous liquid, it is limited that good fluorine chemistry of silicones is avenged in Harbin
Company's production；
Hydrophobic auxiliary agent: model AS-CP305, faint yellow homogeneous liquid, Dongguan City Australia produce up to Chemical Co., Ltd..
Embodiment 1:
A kind of super-hydrophobic oleophobic Nano self-cleaning coating, raw material composition and weight part ratio are as follows: nanoparticle aqueous solution 20 contains
Fluoropolymer 8,30, No. two dispersing agents 0.4 of water, mould inhibitor 0.5, defoaming agent 0.2, antifreezing agent 1.2, coalescing agent 2.1, fluorine carbon table
Face activating agent 0.1, hydrophobic auxiliary agent 0.5, pH adjusting agent 0.2, titanium dioxide 5, calcite 2, wollastonite powder 2, wherein the nanoparticle
The raw material of aqueous solution forms and its weight part ratio are as follows: nanoparticle 15~20, water 80, No.1 dispersing agent 0.8, wetting agent 0.5, institute
Stating nanoparticle is nanometer anatase titania, and the fluoropolymer is Hexafluorobutyl mathacrylate, the No.1 point
Powder is dispersing agent 5040, and the wetting agent is wetting agent PE-100, and No. two dispersing agents are dispersing agent HT-5020, described
Mould inhibitor is 2-methyl-4-isothiazolin-3-one and 5-Chloro-2-methyl-4-isothiazolin-3-one, and the defoaming agent is to disappear
Infusion BX-825A, the antifreezing agent are 2-amino-2-methyl-1-propanol, and the coalescing agent is Lauryl Alcohol ester, the fluorine
Carbon surface active agent is perfluoroalkyl ethyoxyl methyl ether, and the hydrophobic auxiliary agent is AS-CP305, and the pH adjusting agent is AMP-95；
When preparation, follow the steps below:
One, the stirring of high-speed shearing machine high speed is added in required ratio in nanoparticle, water, No.1 dispersing agent, wetting agent
To obtain nanoparticle aqueous solution, wherein the revolving speed of the high-speed shearing machine is 8000 turns/min, mixing time 30min；
Two, first add water in high-speed shearing machine, sequentially add No. two dispersing agents, mould inhibitor, defoaming agent, antifreezing agent,
Coalescing agent, nanoparticle aqueous solution are stirred evenly to obtain mixed liquor, wherein No. two dispersing agents, mould inhibitor, the defoamings
Agent, antifreezing agent, coalescing agent and nanoparticle aqueous solution weight part ratio be 0.4: 0.5: 0.1: 1.2: 1.6: 20, the high speed
The revolving speed of cutter is 5500 turns/min, mixing time 20min；
Three, filler is added into mixed liquor and stirs 10min；
Four, fluoropolymer is first added into the mixed liquor for be mixed with filler, fluorocarbon surfactant, hydrophobic auxiliary agent, disappears
Infusion, coalescing agent stir 10min, then be added pH adjusting agent regulation system pH value be 7 to get arrive super-hydrophobic oleophobic nanometer
Self-cleaning coating, wherein the parts by weight of the fluoropolymer, fluorocarbon surfactant, hydrophobic auxiliary agent, defoaming agent and coalescing agent
Than being 8: 0.1: 0.5: 0.1: 0.5.
Embodiment 2:
Step with embodiment 1, the difference is that:
The raw material of the coating forms and its weight part ratio are as follows: increases nanoparticle aqueous solution 30, fluoropolymer 10, water
40, No. two dispersing agents 0.8, mould inhibitor 1, defoaming agent 0.6, antifreezing agent 1.6, coalescing agent 3, fluorocarbon surfactant 0.3, hydrophobic
Auxiliary agent 1, pH adjusting agent 0.8, titanium dioxide 8, calcite 4, wollastonite powder 4, wherein the raw material of the nanoparticle aqueous solution form and
Its weight part ratio are as follows: nanoparticle 20, water 100, No.1 dispersing agent 1, wetting agent 1；
In the step 1, the revolving speed of the high-speed shearing machine is 9000 turns/min, mixing time 40min；
In the step 2, No. two dispersing agents, mould inhibitor, defoaming agent, antifreezing agent, coalescing agent and nanoparticle aqueous solution
Weight part ratio be 0.8: 1: 0.3: 1.6: 2: 30, the revolving speed of high-speed shearing machine is 5000 turns/min, mixing time 15min；
In the step 3, mixing time 15min；
In the step 4, mixing time 15min, the pH value of pH adjusting agent regulation system is 8, fluoropolymer, fluorine
Carbon surface active agent, hydrophobic auxiliary agent, defoaming agent and coalescing agent weight part ratio be 10: 0.3: 1: 0.3: 1.
Embodiment 3:
Step with embodiment 1, the difference is that:
The raw material of the coating forms and its weight part ratio are as follows: increase nanoparticle aqueous solution 25, fluoropolymer 9, water 35,
No. two dispersing agents 0.6, mould inhibitor 0.75, defoaming agent 0.4, antifreezing agent 1.4, coalescing agent 2.55, fluorocarbon surfactant 0.2,
Hydrophobic auxiliary agent 0.75, pH adjusting agent 0.5, titanium dioxide 6.5, calcite 3, wollastonite powder 3, wherein the nanoparticle aqueous solution
Raw material composition and its weight part ratio are as follows: nanoparticle 17.5, water 90, No.1 dispersing agent 0.9, wetting agent 0.75；
In the step 1, the revolving speed of the high-speed shearing machine is 7000 turns/min, mixing time 50min；
In the step 2, No. two dispersing agents, mould inhibitor, defoaming agent, antifreezing agent, coalescing agent and nanoparticle aqueous solution
Weight part ratio be 0.6: 0.75: 0.2: 1.4: 1.8: 25, the revolving speed of high-speed shearing machine is 6000 turns/min, and mixing time is
15min；
In the step 3, mixing time 12min；
In the step 4, mixing time 12min, fluoropolymer, fluorocarbon surfactant, hydrophobic auxiliary agent, defoaming
The weight part ratio of agent and coalescing agent is 9: 0.2: 0.75: 0.2: 0.75.
Embodiment 4:
A kind of super-hydrophobic oleophobic Nano self-cleaning coating, raw material composition and its weight part ratio are as follows: increase nanoparticle aqueous solution
20, fluoropolymer 8, water 30, mould inhibitor 0.5, defoaming agent 0.2, antifreezing agent 1.2, coalescing agent 2.1, fluorocarbon surfactant
0.1, hydrophobic auxiliary agent 0.5, pH adjusting agent 0.2, wherein the raw material of the nanoparticle aqueous solution forms and its weight part ratio are as follows:
Nanoparticle 15, water 80, No.1 dispersing agent 0.8, wetting agent 0.5；
When preparation, follow the steps below:
One, the stirring of high-speed shearing machine high speed is added in required ratio in nanoparticle, water, No.1 dispersing agent, wetting agent
To obtain nanoparticle aqueous solution, wherein the revolving speed of the high-speed shearing machine is 8000 revs/min, mixing time 30min；
Two, it first adds water in high-speed shearing machine, sequentially adds mould inhibitor, defoaming agent, antifreezing agent, coalescing agent, receives
Rice corpuscles aqueous solution is stirred evenly to obtain mixed liquor, wherein the mould inhibitor, defoaming agent, antifreezing agent, coalescing agent and nanometer
The weight part ratio of particle aqueous solution is 0.5: 0.1: 1.2: 1.6: 20；
Three, fluoropolymer is first added into the mixed liquor for be mixed with filler, fluorocarbon surfactant, hydrophobic auxiliary agent, disappears
Infusion, coalescing agent stir 10min, then be added pH adjusting agent regulation system pH value be 7 to get arrive super-hydrophobic oleophobic nanometer
Self-cleaning coating, wherein the parts by weight of the fluoropolymer, fluorocarbon surfactant, hydrophobic auxiliary agent, defoaming agent and coalescing agent
Than being 8: 0.1: 0.5: 0.1: 0.5.
Super-double-hydrophobic surface performance detection, knot are carried out to using super-hydrophobic oleophobic Nano self-cleaning coating prepared in the above embodiments
Fruit is as follows:
Water contact angle >=150 °；
Oily contact angle >=150 °；
3 °~5 ° of water roll angle；
3 °~5 ° of oily roll angle.
Claims (8)
1. a kind of super-hydrophobic oleophobic Nano self-cleaning coating, it is characterised in that:
The raw material of the coating forms and its weight part ratio are as follows: nanoparticle aqueous solution 20~30, helps fluoropolymer 8~10
Agent 4.8~25.1, water 30~40, wherein the raw material of the nanoparticle aqueous solution forms and its weight part ratio are as follows: nanoparticle
15~20, water 80~100, No.1 dispersing agent 0.8~1, wetting agent 0.5~1, the nanoparticle are dichloride in anatase type titanium dioxide
Titanium, the fluoropolymer are polymethylacrylic acid hexafluoro butyl ester, and the raw material composition and its weight part ratio of the auxiliary agent include: anti-
Mould dose 0.5~1, defoaming agent 0.2~0.6, antifreezing agent 1.2~1.6, coalescing agent 2.1~3, fluorocarbon surfactant 0.1~
0.3, hydrophobic auxiliary agent 0.5~1, pH adjusting agent 0.2~0.8；
The preparation method of the coating successively the following steps are included:
Step 1: first adding water in high-speed shearing machine, sequentially add part of auxiliary, nanoparticle aqueous solution stir evenly with
Obtain mixed liquor；
Step 2: fluoropolymer is added into mixed liquor, remaining auxiliary agent stirs evenly and obtains super-hydrophobic oleophobic Nano self-cleaning
Coating.
2. a kind of super-hydrophobic oleophobic Nano self-cleaning coating according to claim 1, it is characterised in that:
The auxiliary agent further includes No. two dispersing agents, fillers, the weight part ratio of No. two dispersing agents and fluorocarbon surfactant
It is 0.4~0.8: 0.1~0.3, the raw material composition and weight part ratio of the filler are as follows: titanium dioxide 5~8, calcite 2~4, silicon
Ashes 2~4.
3. a kind of super-hydrophobic oleophobic Nano self-cleaning coating according to claim 2, it is characterised in that:
The No.1 dispersing agent is dispersing agent 5040, and the wetting agent is wetting agent PE-100, and No. two dispersing agents are dispersion
Agent HT-5020, the mould inhibitor are isothiazolinone compound, and the defoaming agent is defoaming agent BX-825A, the antifreezing agent
For multicomponent alcoholics compound, the coalescing agent is Lauryl Alcohol ester, and the fluorocarbon surfactant is perfluoroalkyl ethyoxyl
Methyl ether, the hydrophobic auxiliary agent are AS-CP305, and the pH adjusting agent is AMP-95.
4. a kind of preparation method of super-hydrophobic oleophobic Nano self-cleaning coating described in claim 1.
5. a kind of preparation method of super-hydrophobic oleophobic Nano self-cleaning coating according to claim 4, it is characterised in that:
High-speed shearing machine is added in required ratio by nanoparticle, water, No.1 dispersing agent, wetting agent in the nanoparticle aqueous solution
High speed stirring is made, wherein the nanoparticle, water, No.1 dispersing agent and wetting agent weight part ratio be 15~20: 80~
100: 0.8~1: 0.5~1.
6. a kind of preparation method of super-hydrophobic oleophobic Nano self-cleaning coating according to claim 4 or 5, it is characterised in that:
The step 1 refers to: first adding water in high-speed shearing machine, sequentially adds mould inhibitor, defoaming agent, antifreezing agent, film forming
Auxiliary agent, nanoparticle aqueous solution are stirred evenly to obtain mixed liquor, wherein the mould inhibitor, defoaming agent, antifreezing agent, film forming help
The weight part ratio of agent and nanoparticle aqueous solution is 0.5~1: 0.1~0.3: 1.2~1.6: 1.6~2: 20~30；
The step 2 refers to: first into mixed liquor be added fluoropolymer, fluorocarbon surfactant, hydrophobic auxiliary agent, defoaming agent,
Coalescing agent stirs evenly, and adds pH adjusting agent, wherein the fluoropolymer, fluorocarbon surfactant, hydrophobic auxiliary agent,
The weight part ratio of defoaming agent, coalescing agent and pH adjusting agent is 8~10: 0.1~0.3: 0.5~1: 0.1~0.3: 0.5~1:
0.2~0.8.
7. a kind of preparation method of super-hydrophobic oleophobic Nano self-cleaning coating according to claim 6, it is characterised in that:
The auxiliary agent further includes No. two dispersing agents, fillers, the weight part ratio of No. two dispersing agents and fluorocarbon surfactant
It is 0.4~0.8: 0.1~0.3, the raw material composition and weight part ratio of the filler are as follows: titanium dioxide 5~8, calcite 2~4, silicon
Ashes 2~4；
In the step 1, after adding water in high-speed shearing machine, No. two dispersing agents is first added, sequentially adds mould inhibitor, disappear
Infusion, antifreezing agent, coalescing agent, nanoparticle aqueous solution stir evenly；
In the step 2, the pH value that pH adjusting agent regulation system is added is 7~8；
The preparation method further includes the addition step of filler, and the step is between step 1 and step 2；
The addition step of the filler refers to: filler being added into mixed liquor and stirs evenly.
8. a kind of preparation method of super-hydrophobic oleophobic Nano self-cleaning coating according to claim 7, it is characterised in that:
During preparing the nanometer titanium dioxide titanium solution, the revolving speed of high-speed shearing machine is 7000~9000 turns/min, is stirred
Mixing the time is 30~50min；
In the step 1, the revolving speed of high-speed shearing machine is 5000~6000 turns/min, and mixing time is 15~20min；
In the addition step of the filler, step 2, mixing time is 10~15min；
The No.1 dispersing agent is dispersing agent 5040, and the wetting agent is wetting agent PE-100, and No. two dispersing agents are dispersion
Agent HT-5020, the mould inhibitor are isothiazolinone compound, and the defoaming agent is defoaming agent BX-825A, the antifreezing agent
For multicomponent alcoholics compound, the coalescing agent is Lauryl Alcohol ester, and the fluorocarbon surfactant is perfluoroalkyl ethyoxyl
Methyl ether, the hydrophobic auxiliary agent are AS-CP305, and the pH adjusting agent is AMP-95.
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