CN107573845B - A kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon - Google Patents
A kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon Download PDFInfo
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Abstract
The invention discloses a kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon, raw material compositions are as follows: and 100 parts of organosilicone elastic resin, 10~20 parts of surface treated fumed silica powder, surface treated rutile TiO25~15 parts, 10~20 parts of trbasic zinc phosphate, 10~15 parts of aluminium triphosphate, 3~5 parts of blanc fixe, 5~10 parts of mica powder, 2~5 parts of talcum powder, 5~10 parts of glass fibre, 15~20 parts of hydroxy silicon oil, 1~10 part of pigment, 3~10 parts of cross-linking reaction agent, 0.5~2 part of coupling agent, 0.05~0.1 part of catalyst.The present invention had had excellent weatherability both to guarantee the service life of coating, but also with good elasticity overcome because of metal base under temperature gradient expand with heat and contract with cold deformation caused by coating cracking behavior, while coating also has excellent antiseptic property, hydrophobic performance and environmental-friendly performance.
Description
Technical field
The present invention relates to building anti-corrosion coating material production technical field, in particular to a kind of extra-weather-proof type cracking resistance of organosilicon is anti-
Rotten coating.
Background technique
In terms of metal erosion protection, using anticorrosive paint be always on modern industry most economical, most effective means it
One.In recent years, since the use environment of steel construction is more and more severe, strong acid-base environment, high salt mist environment, high temperature difference environment and
High humidity environment all proposes acid test to the using effect and service life of traditional anticorrosive paint.Especially in high latitude and edge
In Haiti band, day and night temperature and the larger situation of the four seasons temperature difference, steel construction will constantly occur under temperature gradient effect repeatedly
Dilatancy and restore deformation, this anticorrosive paint that will lead to metal surface is forced that deformation occurs.Material is the steel of Q235-B
The coefficient of expansion is 1.2 × 10^-5/ DEG C, is 1.7 times of mixed mud.Common alkyd, acrylic acid and corrosion-resistant epoxy paint etc., itself
Linear expansion coefficient is small, and the generation of coating crack, coating cracking are necessarily caused under the deformation effect that substrate expands with heat and contract with cold for a long time
It will lead to the failure of antisepsis.
The form of coating failure is many kinds of, but cracking and the failure mode to fall off will will lead to coating and thoroughly lose to base
The protective effect of material.Although existing patent, which is registered, prepares cracking resistance coating using containing isocyanide ester and its modified resin, by
In the reasons such as the strong toxicity of isocyanide ester, low boiling point, corrosivity is strong, it is hidden easily to there is safety in coating preparation and work progress
Suffer from, environmental pollution is serious, and harmfulness is larger.
Summary of the invention
It is an object of the invention to solve drawbacks described above of the existing technology, provide that a kind of extra-weather-proof type of organosilicon is anti-to be opened
Anticorrosive paint is split, both guarantees the service life of coating with excellent weatherability, overcomes but also with good elasticity because of metal
Coating cracking behavior caused by " expanding with heat and contract with cold " deformation of substrate under temperature gradient, while coating also has excellent anti-corrosive properties
Energy, hydrophobic performance and environmental-friendly performance.Room temperature curing, easy construction is sprayable, brushes and roller coating, to steel construction, cement etc.
Has excellent adhesive force.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon, by weight, raw material composition are as follows: organosilicone elastic tree
Rouge: 100 parts, surface treated fumed silica powder: 10~20 parts, surface treated rutile TiO2: 5~15
Part, trbasic zinc phosphate: 10~20 parts, aluminium triphosphate: 10~15 parts, blanc fixe: 3~5 parts, mica powder: 5~10 parts, talcum
Powder: 2~5 parts, glass fibre: 5~10 parts, hydroxy silicon oil: 15~20 parts, pigment: 1~10 part, cross-linking reaction agent: 3~10 parts,
Coupling agent: 0.5~2 part, catalyst: 0.05~0.1 part.
The present invention chemically key stability, strand spatial structure characteristic angle system filter out low cost, high durable,
High-intensitive, elastomeric environment-friendly type low-molecular-weight resin, and use tetrafunctional modifying agent and the difunctional modifying agent containing phenyl
The cracking resistance resin for preparing that strand space structure is polygonized structure is modified to it, using this modified resin as film forming
Resin prepares extra-weather-proof type cracking resistance anticorrosive paint.Coating has excellent tensile strength after prepared anticorrosive paint solidifies
And elongation at break, the good anti-corrosion coating that solves is because the coefficient of expansion is lower than problem of Cracking caused by substrate.Benzene side chain
The introducing of upper phenyl has broader temperature range so that coating has higher resisting temperature impact capacity in practical applications,
Good antiseptic property is still kept in -100~300 DEG C of temperature ranges.In addition, biggish Si-O key bond energy makes resin itself
With good UV radiation ability, the use of the poisonous and harmful substances such as ultraviolet absorbing agent is avoided, it is environmentally friendly
It is pollution-free.
Anticorrosive packing used is the mixture of trbasic zinc phosphate and aluminium triphosphate, be ensure that in the early period of curing of coatings with after
There is good anti-corrosion effect in phase.Fineness is that the blanc fixe of 1250 mesh can assign coating good acid-proof alkaline.Cloud
1250 mesh of female powder, microstructure are sheet, help effectively to obstruct moisture in air infiltration coating.1250 mesh of talcum powder, stratiform
Structure is conducive to the construction of coating and the barrier to moisture in air.Needle-shaped glass fibre is applied in resin after mixing with resin
In space net structure, the drawing of the storage stability and coating that increase coating stretches intensity.
Silicone oil used is low viscosity end hydroxyl silicone oil, viscosity 100cs in the present invention；Pigment used includes: iron oxide red, iron
The inorganic pigments such as Huang, carbon black, ultramarine, cobalt green, cobalt blue.
The present invention has screened that weatherability is very excellent and the poly- silicon of low molecular weight of less expensive from molecular bond energy
Oxygen alkane resin uses molecular design theory from spatial configuration of molecules angle, has synthesized with polygon in conjunction with practical application condition
Matrix resin of the organosilicone elastic resin of shape structure as extra-weather-proof type cracking resistance anticorrosive paint.
The present invention has selected functional filler modified fumed silica enhancing to apply from coating service performance angle
The tensile strength of material improves coating anti-cracking performance, solves the problems, such as that elastic coating mechanical performance is low, in addition, needle-shaped glass fibers
Dimension had not only enhanced the tensile strength of coating but also had improved the storage stability of coating through with polygonal network structure.Sheet
Mica powder and lamellar talc powder, which form fine and close layer structure in curing of coatings, can effectively delay moisture in air to penetrate into coating.
The present invention uses response type curing mechanism, forms flexible coating, diluent used by cross-linking reaction
For hydroxy silicon oil, curing reaction is participated in paint solidification, non-volatility solvent does not generate VOC, to environment and human body close friend's nothing
Injury.
Preferably, the organosilicone elastic resin is by viscosity in 5000cs low viscosity α below, alpha, omega-dihydroxy poly- two
Methylsiloxane, Diphenylsilanediol and ethyl orthosilicate are copolymerized, low viscosity α, alpha, omega-dihydroxy polydimethyl silicon oxygen
The molar ratio of alkane, Diphenylsilanediol and ethyl orthosilicate is 5:1:2, with metatitanic acid when the organosilicone elastic resins synthesis
Isopropyl ester is as catalyst.Since the network-like molecular chain structure of class polyhedron shape has good tensile resistance and shock resistance
Performance, strand spatial arrangement is polygonal network structure in order to obtain, siloxanes when polymerization, Diphenylsilanediol with just
The molar ratio of methyl silicate is 5:1:2.
Preferably, the specific surface area of fumed silica is 200~230m2/g。
Preferably, surface treated fumed silica powder the preparation method comprises the following steps: by fumed silica powder
After being sufficiently mixed 4h under 50~60 DEG C of counterflow conditions with mixed processing agent, obtained after low boiling point alcohols are removed under reduced pressure；Wherein mix
The dosage for closing inorganic agent is the 1~10% of fumed silica powder quality.
200~230m of fumed silica specific surface area2/ g, and there are a large amount of hydroxyls, and filler to be caused to have centainly on surface
Hydrophily, reduce the compatibility of filler and polyorganosiloxane resin, it is therefore desirable to using modifying agent to fumed silica into
Row modification.Fumed silica is carried out using the mixture of ethyl alcohol, ethyl orthosilicate and silane coupling agent in the present invention
Wet-treating, fumed silica and resin after treatment have good compatibility.
Preferably, surface treated rutile TiO2The preparation method comprises the following steps: by rutile TiO2Powder with mix
After inorganic agent is sufficiently mixed 4h under 50~60 DEG C of counterflow conditions, obtained after low boiling point alcohols are removed under reduced pressure；Wherein mixed processing
The dosage of agent is rutile TiO2The 1~10% of powder quality.
TiO in the present invention2For rutile-type, also it is surface-treated, TiO after treatment2Have with resin good
Good compatibility.
Preferably, the mixed processing agent is ethyl alcohol, ethyl orthosilicate and gamma-aminopropyl-triethoxy-silane according to matter
Measure the mixture than 1:1:1.
Preferably, the cross-linking reaction agent is selected from methyl tributanoximo silane, phenyl tributanoximo silane and four
The mixture of one or more of butanone oximino silane.
Preferably, the coupling agent is selected from gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl front three
Oxysilane, γ-methacryloxypropyl trimethoxy silane and N- β (aminoethyl)-γ-aminopropyltrimethoxysilane
One or more of mixture.
Preferably, the catalyst is selected from dibutyl tin dilaurate, tin dilaurate dioctyl tin, oxalic acid dibutyl
The mixture of one or more of tin.
Preferably, preparation method are as follows:
1) synthesis of organosilicone elastic resin:
Low viscosity α is added in the three-necked flask equipped with reflux cooler, blender and evacuator, alpha, omega-dihydroxy is poly-
Dimethyl siloxane, Diphenylsilanediol, ethyl orthosilicate, the mixed diluting formed by butyl acetate and 120# gasoline
Agent, isopropyl titanate are warming up to 65~70 DEG C of stirrings and cooling for reflux 2h after the lower reaction 4h of stirring at room temperature, finally 70 DEG C,
The ethyl alcohol that reaction generates is distillated through 1h under 8kPa, obtains viscous liquid product i.e. organosilicone elastic resin；In N2Under protection,
Methyl-silicone oil (for diluting organosilicone elastic resin) is added after being cooled to room temperature, stirring thinning is spare；
2) prepared by base-material: by organosilicone elastic resin, the surface treated gas in step 1) after methyl-silicone oil dilutes
Aerosil powder, surface treated rutile-type, trbasic zinc phosphate, aluminium triphosphate, blanc fixe, mica powder, talcum
Powder and glass fibre, are added in vacuum mixer in proportion, sufficiently mixed under the conditions of -0.1~-0.09MPa, 130~150 DEG C
It is cooled to room temperature after closing 4~5 hours；
3) three rollers are ground: the base-material for being cooled to room temperature in step 2) being added in three-roller by amount and is ground, repeats to grind
To fineness≤35 μm；
4) pre-dispersed: the base-material for being ground to regulation fineness through three rollers in step 3) to be added in high speed dispersion cylinder, simultaneously
Pigment, hydroxy silicon oil, 300~500rpm of revolving speed, at room temperature pre-dispersed 20~30min is added；
5) vacuum high speed dispersion: being pumped in vacuum high speed disperser through pre-dispersed uniform mixed material, and crosslinking is added
Reactant is sufficiently mixed 30~50min under the conditions of room temperature, vacuum degree -0.1~-0.09MPa, 800~1000rpm of revolving speed, so
The coupling agent and catalyst for adding formula ratio afterwards continues to mix 20~30min；
6) it filters and packages.
The beneficial effects of the present invention are: the extra-weather-proof type cracking resistance anticorrosive paint of prepared organosilicon in the present invention is to adopt
It uses the organic siliconresin with special microstructure as film forming matter, compact structure is formed by cross-linking and curing reaction, is had
Excellent weatherability, splitting resistance, temperature-change resistance and antiseptic property.The ultraviolet aging resistance time is greater than 1000 hours.It is viscous to substrate
Relay is very strong, and adhesive force reaches 1 grade of level, has extraordinary adhesive force to steel construction etc..Its salt-fog resistant time reaches 2500h
More than, the intact no cracking phenomena of coating under -20 DEG C~50 DEG C of temperature difference repeated stock.This coating drying mechanism is room temperature reaction
Type curing mechanism, non-volatile solvent, VOC free discharge is environmentally friendly pollution-free, Portable safety of constructing.Any bottom can not be brushed
Paint, substrate need to only be cleaned up to removing float, greasy dirt and moisture to construct.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be further explained in detail.
In the present invention, if not refering in particular to, used raw material and equipment etc. are commercially available or commonly used in the art.
Method in following embodiments is unless otherwise instructed the conventional method of this field.
α, alpha, omega-dihydroxy polydimethyl siloxane 750cs (commercially available), Diphenylsilanediol (commercially available), gas phase dioxy
The specific surface area of SiClx is 200~230 ㎡/g (commercially available)；The fineness of rutile type titanium white is 1000~1250 mesh (cities
It sells)；Trbasic zinc phosphate, aluminium triphosphate and glass fibre fineness are 800 mesh (commercially available), blanc fixe, mica powder, talcum powder fineness
For 1250 mesh (commercially available), the hydroxy silicon oil is low viscosity end hydroxyl silicone oil, and viscosity is 100cs (commercially available).
Embodiment 1:
A kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon, by weight, raw material composition are as follows: organosilicone elastic tree
Rouge: 100 parts, surface treated fumed silica powder: 10 parts, surface treated rutile TiO2: 15 parts, phosphoric acid
Zinc: 10 parts, aluminium triphosphate: 15 parts, blanc fixe: 5 parts, mica powder: 5 parts, talcum powder: 2 parts, glass fibre: 10 parts, hydroxyl
Base silicone oil: 15 parts, pigment (iron oxide red pigment): 1 part, cross-linking reaction agent (methyl tributanoximo silane): 3 parts, coupling agent (γ-
Aminopropyl triethoxysilane): 0.5 part, catalyst (dibutyl tin dilaurate): 0.05 part.
The organosilicone elastic resin is by viscosity in 5000cs low viscosity α below, alpha, omega-dihydroxy polydimethyl silicon oxygen
Alkane, Diphenylsilanediol and ethyl orthosilicate are copolymerized, low viscosity α, alpha, omega-dihydroxy polydimethyl siloxane, hexichol
The molar ratio of base dihydroxy base silane and ethyl orthosilicate is 5:1:2, using isopropyl titanate as catalyst, is flowed back at 60~70 DEG C
Functional resin with class polygon microstructure made of stirring copolymerization.
In order to enhance the compatibility of inorganic filler fumed silica and organic resin, the surface treated gas phase two
It is 200~230m that silicon oxide powder, which is by specific surface area,2The SiO of/g2Powder surface treated and obtain, the preparation method comprises the following steps: by gas phase
After SiO 2 powder and mixed processing agent are sufficiently mixed 4h under 50~60 DEG C of counterflow conditions, after low boiling point alcohols are removed under reduced pressure
And it obtains；The mixed processing agent is ethyl alcohol, ethyl orthosilicate and gamma-aminopropyl-triethoxy-silane according to mass ratio 1:1:1's
Mixture；Wherein the dosage of mixed processing agent is the 1% of fumed silica powder quality.
Surface treated rutile TiO2The preparation method comprises the following steps: by rutile TiO2Powder and mixed processing agent exist
After being sufficiently mixed 4h under 50~60 DEG C of counterflow conditions, obtained after low boiling point alcohols are removed under reduced pressure；The wherein dosage of mixed processing agent
For rutile TiO2The 1% of powder quality.
Anticorrosive packing used is the mixture of trbasic zinc phosphate and aluminium triphosphate, be ensure that in the early period of curing of coatings with after
There is good anti-corrosion effect in phase.Fineness is that the blanc fixe (commercially available) of 1250 mesh can assign coating good resistance to acid and alkali
Energy.1250 mesh of mica powder (commercially available), microstructure are sheet, help effectively to obstruct moisture in air infiltration coating.Talcum powder
1250 mesh (commercially available), layer structure are conducive to the construction of coating and the barrier to moisture in air.Needle-shaped glass fibre (commercially available)
It is applied in after being mixed with resin in the space net structure of resin, the stretching of the storage stability and coating that increase coating is strong
Degree.
Embodiment 2:
A kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon, by weight, raw material composition are as follows: organosilicone elastic tree
Rouge: 100 parts, surface treated fumed silica powder: 15 parts, surface treated rutile TiO2: 10 parts, phosphoric acid
Zinc: 15 parts, aluminium triphosphate: 12 parts, blanc fixe: 4 parts, mica powder: 8 parts, talcum powder: 4 parts, glass fibre: 7 parts, hydroxyl
Base silicone oil: 18 parts, pigment (charcoal blacks): 6 parts, cross-linking reaction agent (3 parts+phenyl of methyl tributanoximo silane, three diacetylmonoxime
4 parts of base silane): 7 parts, coupling agent (γ-glycidyl ether oxygen propyl trimethoxy silicane): 1.5 parts, catalyst (tin dilaurate
Dioctyl tin): 0.07 part.
The organosilicone elastic resin is by viscosity in 5000cs low viscosity α below, alpha, omega-dihydroxy polydimethyl silicon oxygen
Alkane, Diphenylsilanediol and ethyl orthosilicate are copolymerized, low viscosity α, alpha, omega-dihydroxy polydimethyl siloxane, hexichol
The molar ratio of base dihydroxy base silane and ethyl orthosilicate is 5:1:2, using isopropyl titanate as catalyst, is flowed back at 60~70 DEG C
Functional resin with class polygon microstructure made of stirring copolymerization.
In order to enhance the compatibility of inorganic filler fumed silica and organic resin, the surface treated gas phase two
It is 200~230m that silicon oxide powder, which is by specific surface area,2The SiO of/g2Powder surface treated and obtain, the preparation method comprises the following steps: by gas phase
After SiO 2 powder and mixed processing agent are sufficiently mixed 4h under 50~60 DEG C of counterflow conditions, after low boiling point alcohols are removed under reduced pressure
And it obtains；The mixed processing agent is ethyl alcohol, ethyl orthosilicate and gamma-aminopropyl-triethoxy-silane according to mass ratio 1:1:1's
Mixture；Wherein the dosage of mixed processing agent is the 5% of fumed silica powder quality.
Surface treated rutile TiO2The preparation method comprises the following steps: by rutile TiO2Powder and mixed processing agent exist
After being sufficiently mixed 4h under 50~60 DEG C of counterflow conditions, obtained after low boiling point alcohols are removed under reduced pressure；The wherein dosage of mixed processing agent
For rutile TiO2The 5% of powder quality.
The other the same as in Example 1.
Embodiment 3:
A kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon, by weight, raw material composition are as follows: organosilicone elastic tree
Rouge: 100 parts, surface treated fumed silica powder: 20 parts, surface treated rutile TiO2: 5 parts, phosphoric acid
Zinc: 20 parts, aluminium triphosphate: 10 parts, blanc fixe: 3 parts, mica powder: 10 parts, talcum powder: 5 parts, glass fibre: 5 parts, hydroxyl
Base silicone oil: 20 parts, pigment (cobalt blue dye): 10 parts, cross-linking reaction agent (four butanone oximino silanes, 3 parts+phenyl tributanoximo silicon
7 parts of alkane): 10 parts, coupling agent (1 part of+γ-methacryloxypropyl three of γ-glycidyl ether oxygen propyl trimethoxy silicane
1 part of methoxy silane): 2 parts, catalyst (dibutyltin diacetate): 0.1 part.
The organosilicone elastic resin is by viscosity in 5000cs low viscosity α below, alpha, omega-dihydroxy polydimethyl silicon oxygen
Alkane, Diphenylsilanediol and ethyl orthosilicate are copolymerized, low viscosity α, alpha, omega-dihydroxy polydimethyl siloxane, hexichol
The molar ratio of base dihydroxy base silane and ethyl orthosilicate is 5:1:2, using isopropyl titanate as catalyst, is flowed back at 60~70 DEG C
Functional resin with class polygon microstructure made of stirring copolymerization.
In order to enhance the compatibility of inorganic filler fumed silica and organic resin, the surface treated gas phase two
It is 200~230m that silicon oxide powder, which is by specific surface area,2The SiO of/g2Powder surface treated and obtain, the preparation method comprises the following steps: by gas phase
After SiO 2 powder and mixed processing agent are sufficiently mixed 4h under 50~60 DEG C of counterflow conditions, after low boiling point alcohols are removed under reduced pressure
And it obtains；The mixed processing agent is ethyl alcohol, ethyl orthosilicate and gamma-aminopropyl-triethoxy-silane according to mass ratio 1:1:1's
Mixture；Wherein the dosage of mixed processing agent is the 10% of fumed silica powder quality.
Surface treated rutile TiO2The preparation method comprises the following steps: by rutile TiO2Powder and mixed processing agent exist
After being sufficiently mixed 4h under 50~60 DEG C of counterflow conditions, obtained after low boiling point alcohols are removed under reduced pressure；The wherein dosage of mixed processing agent
For rutile TiO2The 10% of powder quality.
The other the same as in Example 1.
It is of the invention the preparation method comprises the following steps:
1) synthesis of organosilicone elastic resin:
It is 750cs's that viscosity is added in the 1000mL three-necked flask equipped with reflux cooler, blender and evacuator
α, alpha, omega-dihydroxy polydimethyl siloxane 0.012mol (320g), Diphenylsilanediol 0.0024mol (0.518g), just
Silester 0.0048mol (0.557g), the butyl acetate and 120# gasoline mixed diluent, 0.3g titanium that 50g mass ratio is 1:1
Isopropyl propionate.It is warming up to 65~70 DEG C of stirrings and cooling for reflux 2h after the lower reaction 4h of stirring at room temperature, finally at 70 DEG C, 8kPa
The ethyl alcohol that diluent and reaction generate is distillated through 1h, obtains viscous liquid product, organosilicone elastic resin.In N2Protection
Under, 48g methyl-silicone oil is added after being cooled to room temperature, stirring thinning is spare.
2) prepared by base-material: by organosilicone elastic resin, the surface treated gas in step 1) after methyl-silicone oil dilutes
Aerosil powder, surface treated rutile-type, trbasic zinc phosphate, aluminium triphosphate, blanc fixe, mica powder, talcum
Powder and glass fibre, are added in vacuum mixer in proportion, sufficiently mixed under the conditions of -0.1~-0.09MPa, 130~150 DEG C
It is cooled to room temperature after closing 4~5 hours；
3) three rollers are ground: the base-material for being cooled to room temperature in step 2) being added in three-roller by amount and is ground, repeats to grind
To fineness≤35 μm；
4) pre-dispersed: the base-material for being ground to regulation fineness through three rollers in step 3) to be added in high speed dispersion cylinder, simultaneously
Pigment, hydroxy silicon oil, 300~500rpm of revolving speed, at room temperature pre-dispersed 20~30min is added；
5) vacuum high speed dispersion: being pumped in vacuum high speed disperser through pre-dispersed uniform mixed material, and crosslinking is added
Reactant is sufficiently mixed 30~50min under the conditions of room temperature, vacuum degree -0.1~-0.09MPa, 800~1000rpm of revolving speed, so
The coupling agent and catalyst for adding formula ratio afterwards continues to mix 20~30min；
6) it filters and packages.
The extra-weather-proof type cracking resistance anticorrosive paint of prepared organosilicon in the present invention is using with special microstructure
Organic siliconresin as film forming matter, compact structure is formed, with excellent weatherability, cracking resistance by cross-linking and curing reaction
Property, temperature-change resistance and antiseptic property.The ultraviolet aging resistance time is greater than 1000 hours.Very strong to substrate bonding power, adhesive force reaches
To 1 grade of level, there is extraordinary adhesive force to steel construction etc..Its salt-fog resistant time reaches 2500h or more, at -20 DEG C~50 DEG C
Temperature difference repeated stock under the intact no cracking phenomena of coating.This coating drying mechanism is room temperature reaction type curing mechanism, non-volatile
Solvent, VOC free discharge is environmentally friendly pollution-free, Portable safety of constructing.Any priming paint can not be brushed, substrate need to only be cleaned
Clean float, greasy dirt and the moisture of removing can construct.
Extra-weather-proof organosilicon cracking resistance anticorrosive paint in the present invention is used as steel structure anti-corrosion protective coating, especially suitable
Biggish place is impacted in the stronger open air of ultraviolet light, and by temperature gradient.Excellent elasticity can reduce coating because of cracking
Caused corrosion phenomenon.Its performance according to II type finishing coat examination criteria of JG/T 224-2007 construction steel structure anticorrosive paint into
Row detection, key data are as follows:
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (8)
1. a kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon, which is characterized in that by weight, raw material composition are as follows: have
Machine silicon elastic resin: 100 parts, surface treated fumed silica powder: 10 ~ 20 parts, surface treated rutile-type
TiO2: 5 ~ 15 parts, trbasic zinc phosphate: 10 ~ 20 parts, aluminium triphosphate: 10 ~ 15 parts, blanc fixe: 3 ~ 5 parts, mica powder: 5 ~ 10 parts,
Talcum powder: 2 ~ 5 parts, glass fibre: 5 ~ 10 parts, hydroxy silicon oil: 15 ~ 20 parts, pigment: 1 ~ 10 part, cross-linking reaction agent: 3 ~ 10 parts,
Coupling agent: 0.5 ~ 2 part, catalyst: 0.05 ~ 0.1 part；
The organosilicone elastic resin is by viscosity in 5000cs low viscosity α below, alpha, omega-dihydroxy polydimethyl siloxane, two
Phenyl dihydroxy base silane is copolymerized with ethyl orthosilicate, low viscosity α, alpha, omega-dihydroxy polydimethyl siloxane, diphenyl dihydroxy
The molar ratio of base silane and ethyl orthosilicate is 5:1:2, using isopropyl titanate as urging when the organosilicone elastic resins synthesis
Agent.
2. the extra-weather-proof type cracking resistance anticorrosive paint of a kind of organosilicon according to claim 1, which is characterized in that gas phase dioxy
The specific surface area of SiClx is 200 ~ 230m2/g。
3. the extra-weather-proof type cracking resistance anticorrosive paint of a kind of organosilicon according to claim 1, which is characterized in that at surface
The fumed silica powder of reason the preparation method comprises the following steps: fumed silica powder and mixed processing agent are flowed back at 50 ~ 60 DEG C
Under the conditions of be sufficiently mixed 4h after, be removed under reduced pressure after low boiling point alcohols；Wherein the dosage of mixed processing agent is gas phase titanium dioxide
The 1 ~ 10% of silicon powder mass, the mixed processing agent be ethyl alcohol, ethyl orthosilicate and gamma-aminopropyl-triethoxy-silane according to
The mixture of mass ratio 1:1:1.
4. the extra-weather-proof type cracking resistance anticorrosive paint of a kind of organosilicon according to claim 1, which is characterized in that at surface
The rutile TiO of reason2The preparation method comprises the following steps: by rutile TiO2Powder and mixed processing agent are under 50 ~ 60 DEG C of counterflow conditions
After being sufficiently mixed 4h, obtained after low boiling point alcohols are removed under reduced pressure；Wherein the dosage of mixed processing agent is rutile TiO2Powder
The 1 ~ 10% of quality, the mixed processing agent are ethyl alcohol, ethyl orthosilicate and gamma-aminopropyl-triethoxy-silane according to mass ratio
The mixture of 1:1:1.
5. the extra-weather-proof type cracking resistance anticorrosive paint of a kind of organosilicon according to claim 1, which is characterized in that the crosslinking
Reactant is selected from one or more of methyl tributanoximo silane, phenyl tributanoximo silane and four butanone oximino silanes
Mixture.
6. the extra-weather-proof type cracking resistance anticorrosive paint of a kind of organosilicon according to claim 1, which is characterized in that the coupling
Agent is selected from gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-methacryloxy
The mixture of one or more of propyl trimethoxy silicane and N- β (aminoethyl)-γ-aminopropyltrimethoxysilane.
7. the extra-weather-proof type cracking resistance anticorrosive paint of a kind of organosilicon according to claim 1, which is characterized in that the catalysis
Agent is selected from the mixture of one or more of dibutyl tin dilaurate, tin dilaurate dioctyl tin, dibutyltin diacetate.
8. the extra-weather-proof type cracking resistance anticorrosive paint of a kind of organosilicon according to claim 1, which is characterized in that its preparation side
Method are as follows:
1) synthesis of organosilicone elastic resin:
Low viscosity α, the poly- diformazan of alpha, omega-dihydroxy are added in the three-necked flask equipped with reflux cooler, blender and evacuator
Radical siloxane, Diphenylsilanediol, ethyl orthosilicate, mixed diluent, the titanium formed by butyl acetate and 120# gasoline
Isopropyl propionate is warming up to 65 ~ 70 DEG C of stirrings and cooling for reflux 2h after the lower reaction 4h of stirring at room temperature, finally at 70 DEG C, 8kPa
The ethyl alcohol that reaction generates is distillated through 1h, obtains viscous liquid product i.e. organosilicone elastic resin；In N2Under protection, it is cooled to
Methyl-silicone oil is added after room temperature, stirring thinning is spare；
2) prepared by base-material: by the organosilicone elastic resin in step 1) after methyl-silicone oil dilutes, surface treated gas phase two
Silicon oxide powder, surface treated rutile TiO2, trbasic zinc phosphate, aluminium triphosphate, blanc fixe, mica powder, talcum
Powder and glass fibre, are added in vacuum mixer in proportion, are sufficiently mixed under the conditions of -0.1 ~ -0.09MPa, 130 ~ 150 DEG C
It is cooled to room temperature after 4 ~ 5 hours；
3) three rollers are ground: the base-material for being cooled to room temperature in step 2 being added in three-roller by amount and is ground, repetition is ground to thin
≤ 35 μm of degree；
4) pre-dispersed: the base-material for being ground to regulation fineness through three rollers in step 3) being added in high speed dispersion cylinder, is added simultaneously
Pigment, hydroxy silicon oil, 300 ~ 500rpm of revolving speed, at room temperature pre-dispersed 20 ~ 30min；
5) vacuum high speed dispersion: being pumped in vacuum high speed disperser through pre-dispersed uniform mixed material, and cross-linking reaction is added
Agent is sufficiently mixed 30 ~ 50min under the conditions of room temperature, vacuum degree -0.1 ~ -0.09MPa, 800 ~ 1000rpm of revolving speed, then adds again
The coupling agent and catalyst for entering formula ratio continues to mix 20 ~ 30min；
6) it filters and packages.
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| CN201710894208.6A CN107573845B (en) | 2017-09-28 | 2017-09-28 | A kind of extra-weather-proof type cracking resistance anticorrosive paint of organosilicon |
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| CN107573845B true CN107573845B (en) | 2019-08-02 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226564A (en) * | 2018-09-07 | 2019-01-18 | 盐城都亭汽车部件有限公司 | A kind of automobile parts stamping die of easy discharging |
| CN109355009B (en) * | 2018-09-30 | 2021-02-19 | 浙江凌志新材料有限公司 | Organosilicon static conductive coating based on silicon-based imidazole ionic liquid |
| CN111378360A (en) * | 2019-01-01 | 2020-07-07 | 中环海化(厦门)船舶智能涂料有限公司 | Welding slag splashing prevention coating and preparation method thereof |
| CN110452568B (en) * | 2019-08-30 | 2022-12-13 | 西北工业大学 | Anticorrosive paint, preparation method thereof and anticorrosive coating |
| CN110628324B (en) * | 2019-10-14 | 2021-04-20 | 杭州瑞江新材料技术有限公司 | Water-based organic silicon anti-cracking anticorrosive paint and preparation method thereof |
| CN111378401B (en) * | 2020-04-26 | 2022-08-19 | 东莞市鼎力薄膜科技有限公司 | Release film for OCA (optical clear adhesive) and preparation method thereof |
| CN111620716B (en) * | 2020-04-28 | 2022-10-11 | 江苏新视界先进功能纤维创新中心有限公司 | Preparation method and protection method of ancient building outer wall protection coating |
| CN111534222A (en) * | 2020-06-08 | 2020-08-14 | 无锡米克新材料有限公司 | Organopolysiloxane rubber protective coating paint |
| CN111826083A (en) * | 2020-07-27 | 2020-10-27 | 江西锐克斯科技有限公司 | Novel super-weather-resistant anticorrosive powder coating and preparation method thereof |
| CN116396678A (en) * | 2021-12-27 | 2023-07-07 | 山东工业陶瓷研究设计院有限公司 | Normal-temperature curing radiation coating slurry, radiation coating and preparation method thereof |
| CN115404002B (en) * | 2022-07-19 | 2023-04-07 | 江西必可科技有限公司 | Silicon-carbon modified elastic anticorrosive paint and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086823A (en) * | 2015-05-28 | 2015-11-25 | 浙江凌志精细化工有限公司 | Organosilicone room-temperature-cured anticorrosive coating material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086823A (en) * | 2015-05-28 | 2015-11-25 | 浙江凌志精细化工有限公司 | Organosilicone room-temperature-cured anticorrosive coating material |
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Effective date of registration: 20201124 Address after: No. 1290, Hongdu North Avenue, Donghu District, Nanchang City, Jiangxi Province Patentee after: Jiangxi Lingzhi Anticorrosion Technology Co.,Ltd. Address before: 310015 Tianzhu street, Ling'an Qingshan Economic Development Zone, Hangzhou, Zhejiang Province, No. 57 Patentee before: ZHEJIANG LINZI FINE CHEMICAL Co.,Ltd. |