CN104072661B - A kind of fluorine silicon-modified acrylic ester emulsion containing amino and preparation method thereof - Google Patents
A kind of fluorine silicon-modified acrylic ester emulsion containing amino and preparation method thereof Download PDFInfo
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- CN104072661B CN104072661B CN201410240194.2A CN201410240194A CN104072661B CN 104072661 B CN104072661 B CN 104072661B CN 201410240194 A CN201410240194 A CN 201410240194A CN 104072661 B CN104072661 B CN 104072661B
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- containing amino
- acrylate
- acrylic ester
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Abstract
The invention discloses a kind of fluorine silicon-modified acrylic ester emulsion containing amino and preparation method thereof, the method that the method for the present invention is polymerized by emulsion imports amino group while organic silicon-fluorine modified acrylate emulsion, the fluorine silicon-modified acrylic ester emulsion containing amino prepared is made to contain active group, apply its fabric arranged not only to have good water repellency, also there is good durability simultaneously.
Description
Technical field
The present invention relates to a kind of acrylate modified field, be specifically related to a kind of containing amino fluorinated silicone modified third
Olefin(e) acid ester emulsion and preparation method thereof.
Background technology
Organic silicon-fluorine modified acrylate emulsion becomes the representative of modified acrylate coating material in recent years.Organic
Silicon materials have the features such as Si-O key bond energy is big, surface energy is low, Chain Flexibility is big and have many only
Special surface property, has that esters of acrylic acid cementability is strong concurrently, the feature of good film-forming property and an organosilicon weatherability
Wait by force excellent properties.Organic fluorine material is generally long-chain fluorocarbon, and the bond energy of carbon-fluorine bond is relatively big, than
More stable, fluorocarbon shows the chemical stability of brilliance, weatherability, corrosion resistance, antioxidation
The performances such as property.Along with growth in the living standard, putting back to of fabric be shrinkproof, soft, emulation, fire-retardant obtain
The biggest raising, but have concurrently water repellent, refuse oil, the performance of organic solvent-resistant is difficult to realize simultaneously, from
And limit the application of modified acrylate emulsion.
In prior art, the preparation method of acrylic acid ester emulsion has a following two:
1) Chinese invention of Patent No. 201110277014.4 discloses a kind of quaternized organic-silicon-modified
The preparation method of acrylic acid ester emulsion.Mainly comprise the processes of the synthesis of (1) amido silicon oil, by prestox ring
Tetrasiloxane, the silane coupler of band double bond, N-β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane,
Hexamethyl disiloxane, potassium hydroxide and deionized water are placed in reaction vessel the temperature at 100～110 DEG C
Under scope, prepare amido silicon oil；(2) alkyl halide or epoxy alkyl halide are added, the temperature of 50～90 DEG C
Under carry out quaternized process, obtain quaternised modified amino-silicone oil；(3) season prepared in step (2)
In ammonium modified amino silicon oil, add emulsifying agent, acrylic ester monomer and deionized water, use oxidation
-reduction initiating system carries out copolyreaction, obtains quaternized organosilicon-modified acrylate emulsion.It produces
Thing can be applicable to textile finishing, especially acrylic fabric, has preferable pilling resistance.
2) Chinese invention of Patent No. 200510101356.5 discloses a kind of extra-weather-proof, anti-pollution paint
Fluorine silicon-modified acrylic ester emulsion, relate to a kind of coating resin.It contain (methyl) acrylate,
Vinylsiloxane and Organic fluoride monomer, make (methyl) acrylic acid, second with compound emulsifying agent, pH buffer agent
Alkenyl silanes emulsifying；It is polymerized with initiator trigger monomer, spanning tree fat liquor.This fluorinated silicone modified acrylate
Emulsion have ultralow surface can, adhesive force is good, transparent, gloss retention is good, can significantly improve resin
Weatherability, resistance to soiling.Thus chemical steady, the mechanical stability having had and excellent machinability.
Ammonia alkyl polysiloxanes (being commonly called as amido silicon oil) is good famous with softness, Γ-amino triethoxysilicane
Alkane is a kind of fabric step treating reagent that textile industry is conventional, including Γ-amino triethoxysilane
(KH500) shiinkproof finish and the soft finish of various fiber, the emulation of wool fabric it are widely used in
The aspects such as arrangement, flame-proof treatment, but its water repellency is the most excellent, not oil resistant, not organic solvent-resistant etc.
Shortcoming, limits it and the most extensively applies.Trifluoro propyl cyclotrisiloxane combines organosilicon and Organic fluoride
The advantage of polymer, the acrylic acid ester emulsion using organic silicon-fluorine modified be utilized as fabric, leather,
Paper finishing agent, but the inactive group of this emulsion, it is impossible to give the endurance quality of fabric.
Summary of the invention
The present invention seeks to: the fluorine containing amino of a kind of water repellency with stable excellence and durability is provided
Acrylate emulsion modified with organosiloxane, this contain amino fluorine silicon-modified acrylic ester emulsion preparation method with distillation
Water is as solvent, it is ensured that preparation process is entirely without pollution, and production cost is low.
The technical scheme is that a kind of fluorine silicon-modified acrylic ester emulsion containing amino, its structural formula
As follows:
Wherein R1, R2 are selected from hard monomer or soft monomer, and a, b, c, n are the repeat number and all of segment
Being the integer of 10～60, number-average molecular weight is 6000～8000g/mol.
Preferably, described R1 is selected from hard monomer, and described R2 is selected from soft monomer.
Preferably, described hard monomer one in methyl methacrylate, butyl methacrylate；
Described soft monomer selected from acrylic acid methyl ester., butyl acrylate, ethyl acrylate, 1-Octyl acrylate,
One in 2-(Acryloyloxy)ethanol, Hydroxypropyl acrylate.
The preparation method of a kind of such as above-mentioned fluorine silicon-modified acrylic ester emulsion containing amino, including walking as follows
Rapid:
1) by acrylate monomer, vinylsiloxane, initiator, compound emulsifying agent, pH adjusting agent
Carry out pre-emulsification after mixing with distilled water, obtain pre-emulsion, wherein said acrylate monomer and described second
The mass ratio of alkenyl siloxane is 35～55:2.5～3.2；
2) use the semistarvation technique of semi-continuous process, take 1/N step 1) in the pre-emulsification for preparing
Liquid, heated and stirred as reaction system in atmosphere of inert gases, at a temperature of T1；Will residue
(N-1) drip after/N pre-emulsion and trifluoro propyl methyl cyclotrisiloxane and ammonia alkyl siloxanes high speed shear
Entering in above-mentioned reaction system, the instillation time is t1, then heats the t2 time at temperature T2；
3) under agitation it is down to room temperature, filters with 200 mesh filter screens with after pH adjusting agent regulation to neutrality
Emulsion, obtains the emulsion particle diameter fluorine silicon-modified acrylic ester emulsion containing amino less than or equal to 83 μm.
Step 1) in corresponding reaction equation as follows:
Step 2) in corresponding reaction equation as follows:
Preferably, step 1) described in acrylate monomer be selected from acrylic acid methyl ester., ethyl acrylate,
Butyl acrylate, 1-Octyl acrylate, 2-(Acryloyloxy)ethanol, Hydroxypropyl acrylate, methyl methacrylate,
The mixture of any two kinds in butyl methacrylate；
Described vinylsiloxane is selected from vinyl trimethoxy siloxanes, vinyl triethoxyl silica
Alkane, vinyl three isopropoxy siloxanes；
Described initiator is selected from one or more in potassium peroxydisulfate, Ammonium persulfate., sodium peroxydisulfate
Mixture；
Described compound emulsifying agent is nonionic surfactant and cationic surfactant is composited
Mixture；
Described pH adjusting agent one in potassium hydroxide, sodium hydroxide, sodium bicarbonate, the ammonia or
Two or more mixture；
Described pre-emulsified method is high shear mixing pre-emulsifying method, and the pre-emulsified time is 5～20 points
Clock.
Preferably, step 2) described in ammonia alkyl siloxanes selected from γ-aminopropyl-triethoxy siloxanes,
N-β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, N-(β-aminoethyl)-gamma-aminopropyl-triethoxy
One in silane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane；
Preferably, described initiator is Ammonium persulfate.；
Described nonionic surfactant selected from NPE TX-7, TX-9, TX-10, TX-12,
One or more mixture in fatty alcohol-polyoxyethylene ether AEO-7, AEO-9, AEO-10,
Described cationic surfactant is selected from cetyl trimethylammonium bromide, dodecyl dimethyl benzyl
One or more in ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, brocide
Mixture；
Described pH adjusting agent is ammonia；
The described pre-emulsified time is 10～15 minutes.
Preferably, described N is 3～5, and T1 is 78～82 DEG C, and T2 is 82～88 DEG C, and t1 is 1～3 little
Time, t2 is 3～5 hours.
It is highly preferred that described N is 3, described T1 is 80 ± 1 DEG C, and T2 is 85 ± 1 DEG C, and t1 is 2 ± 0.5 little
Time, t2 is 4 ± 0.5 hours.
Heretofore described hard monomer and described soft monomer are distinguished according to vitrification point Tg, general Tg
Temperature is hard monomer more than room temperature 25 DEG C, and 25 DEG C the following is soft monomer.
The invention have the advantage that
1. the method that the inventive method is polymerized by emulsion is led while organic silicon-fluorine modified acrylate emulsion
Enter amino group so that the fluorine silicon-modified acrylic ester emulsion containing amino prepared contains active group,
Apply its fabric arranged not only to have good water repellency, also there is good durability simultaneously.
2. the present invention uses cationic emulsifier and nonionic emulsifier to constitute compound emulsifying agent, less
Emulsifier under, it is thus achieved that more stable fluorine silicon-modified acrylic ester emulsion, reduce conventional emulsifier
Negative effect to polymer thin film properties.
3. the method that the present invention is polymerized by emulsion prepares fluorine silicon-modified acrylic ester emulsion, using distilled water as
Solvent, it is ensured that preparation process also protects environment entirely without polluting simultaneously, it also avoid because using solvent simultaneously
The high cost problem brought.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Fig. 1 is that embodiment one products therefrom is coated in the upper gained contact angle figure of cotton material；
Fig. 2 is that embodiment two products therefrom is coated in the upper gained contact angle figure of cotton material；
Fig. 3 is that embodiment three products therefrom is coated in the upper gained contact angle figure of cotton material；
Fig. 4 is that embodiment four products therefrom is coated in the upper gained contact angle figure of cotton material；
Fig. 5 is that embodiment five products therefrom is coated in the upper gained contact angle figure of cotton material；
Fig. 6 is that embodiment six products therefrom is coated in the upper gained contact angle figure of cotton material；
Fig. 7 is the infrared figure of embodiment three products therefrom；
Fig. 8 is the transmission electron microscope picture of embodiment three products therefrom.
Detailed description of the invention
Embodiment one:
By 30.4g methyl methacrylate, 15.0g butyl acrylate, 5.5g vinyl trimethoxy silicon
Oxygen alkane, 0.8gTX-10,1.6g cetyl trimethylammonium bromide, 0.2g Ammonium persulfate. and 150g distillation
Water mixing carries out high shear 15 minutes, takes out 1/3 emulsion and adds tetra-mouthfuls of round-bottomed flasks of 500ml, opens nitrogen
Gas shielded, is heated to 80 DEG C under stirring, addition 20.0g1 in residue 2/3 emulsion, 3,5 trimethyl-1, and 3,5-
Three (3,3,3-trifluoro propyl) ring three silica and 3.5g γ-aminopropyl triethoxysilane, carry out height and cut
Cut 10 minutes, instill in reaction flask in 2 hours, after all dripping off, be warming up to 85 DEG C, continue insulation
After reacting 4 hours, room temperature is down in stirring, and discharging is filtered, and obtains the fluorinated silicone modified acrylate breast containing amino
Liquid.
It is 118 ° by embodiment one gained Emulsion Spraying gained contact angle on cotton material as can be seen from Figure 1, should
The hydrophobicity of contact angle is preferable, thus has certain application performance.
Embodiment two:
By 30.4g methyl methacrylate, 15.0g butyl acrylate, 5.5g vinyl trimethoxy silicon
Oxygen alkane, 0.8gTX-10,1.6g cetyl trimethylammonium bromide, 0.21g Ammonium persulfate. and 150g steam
Distilled water mixing carries out high shear 15 minutes, takes out 1/3 emulsion and adds tetra-mouthfuls of round-bottomed flasks of 500ml, opens
Nitrogen is protected, and is heated to 80 DEG C under stirring, adds 12.8g1,3,5 trimethyls in residue 2/3 emulsion
-1,3,5-tri-(3,3,3-trifluoro propyl) ring three silica and 2.0g γ-aminopropyl triethoxysilane, carried out
High shear 10 minutes, instilled in reaction flask in 2 hours, is warming up to 85 DEG C, continues after all dripping off
Continuous insulation reaction stirred after 4 hours is down to room temperature, and discharging is filtered, and obtains the fluorinated silicone modified propylene containing amino
Acid esters emulsion.
Embodiment two gained lotion applicator gained contact angle on cotton material only has 83 ° as can be seen from Figure 2, dredges
Water poor performance, thus be not suitable for application.
Embodiment three:
By 30.4g methyl methacrylate, 15.0g butyl acrylate, 5.5g vinyl trimethoxy silicon
Oxygen alkane, 0.8gTX-10,1.6g cetyl trimethylammonium bromide, 0.2g Ammonium persulfate. and 150g steam
Distilled water mixing carries out high shear 15 minutes, takes out 1/3 emulsion and adds tetra-mouthfuls of round-bottomed flasks of 500ml, opens
Nitrogen is protected, and is heated to 80 DEG C under stirring, adds 24.8g1,3,5 trimethyls in residue 2/3 emulsion
-1,3,5-tri-(3,3,3-trifluoro propyl) cyclotrisiloxane and 4.0g γ-aminopropyl triethoxysilane, enter
Row high shear 10 minutes, instilled in reaction flask in 2 hours, is warming up to 85 DEG C after all dripping off,
Continuation insulation reaction stirred after 4 hours is down to room temperature, and discharging is filtered, and obtains fluorinated silicone modified third containing amino
Olefin(e) acid ester emulsion.
It is 126 ° by embodiment three gained Emulsion Spraying gained contact angle on cotton material as can be seen from Figure 3, dredges
Aqueous is fine, has good Practical Performance, and is further characterized.
Embodiment three products therefrom is carried out Infrared Characterization, as it is shown in fig. 7,2954cm-1It is-CH3Key
Absworption peak；1750cm-1It it is the absworption peak of C=O；1200cm-1It it is the absworption peak of C-O-C in ester bond；
1070cm-1It it is the absworption peak of Si-O-C；1300cm-1It it is the absworption peak of C-F；And newly increase
3300cm-1It it is the absworption peak of amino group.This shows that modified amino group is the most successfully grafted to propylene
On acid ester copolymer, there is good durability.
Embodiment three products therefrom is carried out transmission sign, as shown in Figure 8, it can be seen that emulsion particle is ball
Shape, emulsion particle diameter is evenly distributed and particle diameter average out to about 125nm.
Embodiment four:
By 30.4g methyl methacrylate, 15.0g butyl acrylate, 5.5g vinyl triethoxyl silicon
Oxygen alkane, 0.8gTX-10,1.6g cetyl trimethylammonium bromide, 0.2g Ammonium persulfate. and 150g distillation
Water mixing carries out high shear 15 minutes, takes out 1/3 emulsion and adds tetra-mouthfuls of round-bottomed flasks of 500ml, opens nitrogen
Gas shielded, is heated to 80 DEG C under stirring, addition 24.8g1 in residue 2/3 emulsion, 3,5 trimethyl-1, and 3,5-
Three (3,3,3-trifluoro propyl) cyclotrisiloxane and 4.0g γ-aminopropyl triethoxysilane, carry out height
Shear 10 minutes, instilled in reaction flask in 2 hours, after all dripping off, be warming up to 85 DEG C, continue
Insulation reaction stirs after 4 hours and is down to room temperature, and discharging is filtered, and obtains the fluorinated silicone modified acrylic acid containing amino
Ester emulsion.
Embodiment four gained lotion applicator gained contact angle on cotton material only has 92 ° as can be seen from Figure 4, dredges
Aqueous is poor, thus application performance is the highest.
Embodiment five:
By 30.4g methyl methacrylate, 15.0g butyl acrylate, 5.5g vinyl three isopropoxy
Siloxanes, 0.8gTX-10,1.6g cetyl trimethylammonium bromide, 0.2g Ammonium persulfate. and 150g
Distilled water mixing carries out high shear 15 minutes, takes out 1/3 emulsion and adds tetra-mouthfuls of round-bottomed flasks of 500ml,
Open nitrogen protection, under stirring, be heated to 80 DEG C, in residue 2/3 emulsion, add 24.8g1,3,5 trimethyls
-1,3,5-tri-(3,3,3-trifluoro propyl) cyclotrisiloxane and 4.0g γ-aminopropyl triethoxysilane, enter
Row high shear 10 minutes, instilled in reaction flask in 2 hours, is warming up to 85 DEG C after all dripping off,
Continuation insulation reaction stirred after 4 hours is down to room temperature, and discharging is filtered, and obtains fluorinated silicone modified third containing amino
Olefin(e) acid ester emulsion.
Embodiment five gained lotion applicator gained contact angle on cotton material is 101 ° as can be seen from Figure 5, for
It is not fine that the water and oil repellant of fabric processes.
Embodiment six:
By 3080g methyl methacrylate, 1540g butyl acrylate, 600g vinyl trimethoxy silicon
Oxygen alkane, 80gTX-10,160g cetyl trimethylammonium bromide, 20g Ammonium persulfate. and 23kg distillation
Water mixing carries out high shear 15 minutes, takes out 1/3 emulsion and adds tetra-mouthfuls of round-bottomed flasks of 50L, opens nitrogen
Protection, is heated to 80 DEG C under stirring, addition 2500g1 in residue 2/3 emulsion, 3,5 trimethyl-1, and 3,5-
Three (3,3,3-trifluoro propyl) ring three silica and 400g γ-aminopropyl triethoxysilane, carry out height and cut
Cut 25 minutes, instilled in reaction flask in 2 hours, after all dripping off, be warming up to 85 DEG C, continue to protect
Temperature reaction is stirred after 4 hours and is down to room temperature, and discharging is filtered, and obtains the fluorinated silicone modified acrylate containing amino
Emulsion.
Embodiment six gained lotion applicator gained contact angle on cotton material is 125 ° as can be seen from Figure 6, hydrophobic
Property fine, can be as the high performance water repellent textile finish of industrialized production.
Certainly, above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow people
Will appreciate that present disclosure and implement according to this, can not limit the scope of the invention with this.
All equivalent transformations done according to the spirit of main technical schemes of the present invention or modification, all should contain
Within protection scope of the present invention.
Claims (8)
1. the fluorine silicon-modified acrylic ester emulsion containing amino, it is characterised in that its structural formula is as follows:
Wherein R1, R2 are selected from hard monomer or soft monomer, and a, b, c, n are the repeat number and all of segment
Being the integer of 10～60, number-average molecular weight is 6000～8000g/mol.
Fluorine silicon-modified acrylic ester emulsion containing amino the most according to claim 1, its feature exists
In, described R1 is selected from hard monomer, and described R2 is selected from soft monomer.
Fluorine silicon-modified acrylic ester emulsion containing amino the most according to claim 1 and 2, it is special
Levy and be,
Described hard monomer one in methyl methacrylate, butyl methacrylate；
Described soft monomer selected from acrylic acid methyl ester., butyl acrylate, ethyl acrylate, 1-Octyl acrylate,
One in 2-(Acryloyloxy)ethanol, Hydroxypropyl acrylate.
4. the breast of the fluorinated silicone modified acrylate containing amino as described in any one of claims 1 to 3
The preparation method of liquid, it is characterised in that comprise the steps:
1) by acrylate monomer, vinyl trimethoxy siloxanes, initiator, compound emulsifying agent,
Carry out pre-emulsification after pH adjusting agent and distilled water mixing, obtain pre-emulsion, wherein said acrylate list
Body is 35～55:2.5～3.2 with the mass ratio of described vinylsiloxane；
2) use the semistarvation technique of semi-continuous process, take 1/N step 1) in the pre-emulsification for preparing
Liquid, heated and stirred as reaction system in atmosphere of inert gases, at a temperature of T1；Will residue
(N-1)/N pre-emulsion and trifluoro propyl methyl cyclotrisiloxane and γ-aminopropyl-triethoxy siloxanes
Instilling in above-mentioned reaction system after high speed shear, the instillation time is t1, then heats t2 at temperature T2
Time；
3) under agitation it is down to room temperature, filters with 200 mesh filter screens with after pH adjusting agent regulation to neutrality
Emulsion, obtains the emulsion particle diameter fluorine silicon-modified acrylic ester emulsion containing amino less than or equal to 83 μm.
The preparation method of the fluorine silicon-modified acrylic ester emulsion containing amino the most according to claim 4,
It is characterized in that,
Step 1) described in acrylate monomer be selected from acrylic acid methyl ester., ethyl acrylate, acrylic acid
Butyl ester, 1-Octyl acrylate, 2-(Acryloyloxy)ethanol, Hydroxypropyl acrylate, methyl methacrylate, methyl
The mixture of any two kinds in butyl acrylate；
Described initiator is selected from one or more in potassium peroxydisulfate, Ammonium persulfate., sodium peroxydisulfate
Mixture；
Described compound emulsifying agent is nonionic surfactant and cationic surfactant is composited
Mixture；
Described pH adjusting agent one in potassium hydroxide, sodium hydroxide, sodium bicarbonate, the ammonia or
Two or more mixture；
Described pre-emulsified method is high shear mixing pre-emulsifying method, and the pre-emulsified time is 5～20 points
Clock.
The preparation method of the fluorine silicon-modified acrylic ester emulsion containing amino the most according to claim 5, its
It is characterised by,
Described initiator is Ammonium persulfate.；
Described nonionic surfactant selected from NPE TX-7, TX-9, TX-10, TX-12,
One or more mixture in fatty alcohol-polyoxyethylene ether AEO-7, AEO-9, AEO-10,
Described cationic surfactant is selected from cetyl trimethylammonium bromide, dodecyl dimethyl benzyl
One or more in ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, brocide
Mixture；
Described pH adjusting agent is ammonia；
The described pre-emulsified time is 10～15 minutes.
The preparation method of the fluorine silicon-modified acrylic ester emulsion containing amino the most according to claim 4, its
Being characterised by, described N is 3～5, and T1 is 78～82 DEG C, and T2 is 82～88 DEG C, and t1 is 1～3 hour,
T2 is 3～5 hours.
The preparation method of the fluorine silicon-modified acrylic ester emulsion containing amino the most according to claim 7, its
Being characterised by, described N is 3, and described T1 is 80 ± 1 DEG C, and T2 is 85 ± 1 DEG C, and t1 is 2 ± 0.5 hours,
T2 is 4 ± 0.5 hours.
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