CN108314753A - A kind of transparent antistatic PMMA and preparation method thereof - Google Patents
A kind of transparent antistatic PMMA and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
Abstract
The present invention relates to polymeric material fields more particularly to a kind of transparent antistatic PMMA and preparation method thereof；The transparent antistatic PMMA is prepared by component：Methyl methacrylate；Initiator；Intermediate monomer；Sulfonates monomer.The present invention selects a kind of intermediate monomer, there is good compatibility with methyl methacrylate and sulfonate respectively, sulfonate contains the hygroscopicity that hydrophilic group increases product surface, forms one layer of unimolecule conductive film in PMMA product surfaces, PMMA is made to reach antistatic effect.The preparation method operating procedure of the present invention is simple, easy to implement, and the PMMA surface resistance polymerizeing is less than 1012Ω can reach permanent anti-static effect, not influence its transparency again on the basis of improving PMMA antistatic properties, light transmittance is suitable with the light transmittance of pure PMMA up to 90% or more.
Description
Technical field
The present invention relates to polymeric material fields more particularly to a kind of transparent antistatic PMMA and preparation method thereof.
Background technology
Polymethyl methacrylate (PMMA) is one kind by methyl methacrylate also referred to as acrylic or organic glass
The transparent polymer material that ester monomer is polymerized, since its good optical transparence is widely used in aviation, building, agricultural
The daylighting component in equal fields.In addition organic glass also has good electrical insulation capability, makes it in instrument, Meter Parts, automobile
Accessory and electrical apparatus insulation material etc. are also widely used.But the excellent electrical insulating property of PMMA products also brings some to ask
Topic, surface one is rubbed to be easy for generating electrostatic, causes static charge accumulation, to during product processing or final use
It easily adsorbs the dust in air or causes to shock by electricity, or even cause fire and explosion accident.Therefore the antistatic modified of PMMA has
Important meaning.
Chinese invention patent (application number：CN201310241383.7) a kind of antistatic organic glass film of invention is disclosed
Preparation method first prepares colloidal sol with silane coupling agent, ethyl alcohol and acetic acid, then prepares fowler enol solid with fullerene, by colloidal sol
It is added in polymethyl methacrylate performed polymer with fowler enol solid, is uniformly mixed and obtains coating liquid, finally by coating liquid
Coated in obtaining antistatic organic glass film on substrate, after solidification.The invention can make PMMA reach antistatic grade, but the method
Middle fullerene is expensive, is not suitable for industrialized production, and be affected to PMMA transparencies.
(the Preparation of zirconia loaded poly (acrylate) such as Chao-Ching Chang
Antistatic hard coatings on PMMA substrates J.APPL.POLYM.SCI.2015, DOI：
10.1002) hydrolytic condensation synthesis oxidation under the conditions of methacrylic acid (MA) is existing by zirconium-n-propylate (ZNP) and 1- propyl alcohol
Zirconium (ZrO2) nano particle, it is right with ultraviolet light solidification coupling agent methacrylic acid 3- (trimethoxysilyl) propyl ester (MSMA)
It is formed by nano particle to be chemically modified, then by the nano particle of chemical modification and six propylene of monomer dipentaerythritol
Acid esters (DPHA) is crosslinked, and prepares coating colloidal sol can make PMMA tables coated in transparent antistatic hard coat is generated on PMMA base materials
Surface resistance is reduced to 1012Ω.But this antistatic coating is easy to fall off during PMMA uses, as PMMA products use
Its antistatic property of the extension of time can be gradually reduced, and cannot reach permanent antistatic effect.
Therefore, how effectively to prepare with permanent anti-static effect and to keep the PMMA composite materials of its transparency be mesh
The preceding technical issues that need to address.
Invention content
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of permanent antistatic performances its can be kept transparent again
The transparent antistatic PMMA copolymers of degree.
New PMMA can be made to reach permanent antistatic performance holding again it is a further object to provide a kind of
The preparation method of the transparent antistatic PMMA copolymers of its transparency.
To achieve the goals above, the present invention uses following technical scheme：
A kind of transparent antistatic PMMA, the transparent antistatic PMMA are prepared from the following parts by weight of the components：Metering system
68.00~99.00 parts of sour methyl esters；0.03~0.20 part of initiator；1.00~30.00 parts of intermediate monomer；Sulfonates monomer 0~
2.00 part.
In the technical scheme, the present invention selects a kind of intermediate monomer, respectively with methyl methacrylate (MMA) and sulfonic acid
There is salt good compatibility, sulfonate to contain the hygroscopicity that hydrophilic group increases product surface, and one is formed in PMMA product surfaces
Layer unimolecule conductive film, makes PMMA reach antistatic effect.Selected intermediate monomer can be dissolved each other with MMA with arbitrary proportion, together
When can dissolve sulfonate, to which three kinds of monomers are mixed to get homogeneous system, carry out thermal polymerization obtain transparent antistatic PMMA it is total
Polymers.The method is easy to operate easy to implement, and the PMMA surface resistance polymerizeing is less than 1012Ω can reach permanently anti-quiet
Electric effect does not influence its transparency again on the basis of improving PMMA antistatic properties, and light transmittance is and pure up to 90% or more
The light transmittance of PMMA is suitable.
Preferably, the initiator is azo or peroxide type initiators.
Preferably, the Sulfonates monomer is l- butyl -3- methylimidazoles mesylate, l-tyrosine benzyl ester is to first
One or more of benzene sulfonate, 6- amidino groups-beta naphthal mesylate, 3- propyl sulfonic acid metering system acid potassium salts.
Preferably, the intermediate monomer is the monomer simultaneously containing hydrophilic radical, hydrophobic grouping and double bond.
Preferably, the intermediate monomer is hydroxyethyl methacrylate, hydroxypropyl acrylate, dimethacrylate Isosorbide-5-Nitrae-
One kind in butanediol ester.
A kind of preparation method of transparent antistatic PMMA, the preparation method include the following steps：
(1) initiator is dissolved in be uniformly mixed in MMA and forms solution A；
(2) Sulfonates monomer is dissolved in intermediate monomer, ultrasound make its be uniformly mixed form solution B；
(3) solution B that the solution A that step (1) obtains is obtained with step (2) is placed in flask, ultrasonic mixing is uniform；
(4) flask is placed in pre-polymerization in oil bath pan, the air of bubble and dissolving is removed after pre-polymerization, pre-polymerization liquid is made to deaerate；
(5) simple glass plate purchased in market is handled with silane coupling agent, makes its surface hydrophobicity；
(6) the pre-polymerization liquid injection step (5) for obtaining step (4) is through in the pretreated glass mold of silane coupling agent, being placed in water
Solidification is reacted in bath, secondary curing is molded in convection oven later, obtains transparent antistatic PMMA.
Preferably, 80 DEG C~90 DEG C of ultrasonic temperature, ultrasonic time 60min in the step (3).
Preferably, the temperature of oil bath pan is 80 DEG C~90 DEG C, preferably 80 DEG C in the step (4)；Pre-polymerization terminal is sentenced
Other method is：10s is pre-polymerization terminal after a large amount of bubbles are emerged in flask.
Preferably, the specific method for handling glass plate purchased in market in the step (5) with silane coupling agent is：By glass purchased in market
After glass plate ethyl alcohol and deionized water wash drying, third of the hexadecyl trimethoxy silane (HTEOS) containing 1.50g is immersed
10s carries out hydrophobic treatment to glass pane surface in ketone solution (100.00g).
Preferably, glass board mould specification is 15cm × 15cm × 4mm in the step (6)；Inject the side of pre-polymerization liquid
Method is：Rubber ring is placed on the glass plate handled with silane coupling agent, with another piece through the processed glass of silane coupling agent
Plate is covered on rubber ring, and a gap is stayed with clip sealing, wherein by the injection of pre-polymerization liquid, with clip that two pieces of glass plates are well close
Envelope；The temperature of water-bath is 60 DEG C~75 DEG C, reaction time 180min；The temperature of convection oven is 100 DEG C~110 DEG C,
The curing process time is 60min in convection oven.
The beneficial effects of the invention are as follows：
(1) present invention can be prepared using ripe PMMA preparation processes, easy to operate easy to implement, antistatic PMMA surface
Resistance has reached 1012Ω is not hereinafter, antistatic effect obviously and with permanent antistatic performance influences the transparency of PMMA again；
(2) reagent safety of the present invention, it is cheap, be conducive to promote and apply.
Specific implementation mode
Technical scheme of the present invention is further described in detail below by embodiment, but protection scope of the present invention is not
It is limited to this.
Embodiment 1
(1) 97.95 parts of MMA and 0.05 part of ABVN (initiator) and 2.00 parts of hydroxyethyl methacrylates (HEMA) are existed
It is uniformly mixed in 250mL flasks；
(2) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and ball condenser and thermometer (PID) are connected in flask to control
Temperature makes system maintain 80 DEG C of holding 20min, and 10s or so after a large amount of bubbles in flask are emerged, pre-polymerization terminates, by flask
Taking-up is put into ice-water bath, until flask walls turn cold, is made by the air of applying vacuum (650mmHg) removing bubble and dissolving pre-
Polymers deaerates；
(3) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS), makes its surface hydrophobicity.Pretreatment
Afterwards, 60min is dried at room temperature；
(4) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 2
(1) 97.95 parts of MMA and 0.05 part of ABVN and 5.00 part of HEMA are uniformly mixed in 250mL flasks；
(2) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and ball condenser and thermometer (PID) are connected in flask to control
Temperature makes system maintain 80 DEG C and 20min, the 10s after a large amount of bubbles in flask are emerged, pre-polymerization is kept to terminate, flask is taken out
It is put into ice-water bath, until flask walls turn cold, the air of bubble and dissolving is removed by applying vacuum (650mmHg) makes prepolymer
Degassing；
(3) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(4) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 3
(1) 97.95 parts of MMA and 0.05 part of ABVN and 10.00 part of HEMA are uniformly mixed in 250mL flasks；
(2) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and ball condenser and thermometer (PID) are connected in flask to control
Temperature makes system maintain 80 DEG C and 20min, the 10s after a large amount of bubbles in flask are emerged, pre-polymerization is kept to terminate, flask is taken out
It is put into ice-water bath, until flask walls turn cold, the air of bubble and dissolving is removed by applying vacuum (650mmHg) makes prepolymer
Degassing；
(3) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(4) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 4
(1) 97.95 parts of MMA and 0.05 part of ABVN and 15.00 part of HEMA are uniformly mixed in 250mL flasks；
(2) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and ball condenser and thermometer (PID) are connected in flask to control
Temperature makes system maintain 80 DEG C and 20min, the 10s after a large amount of bubbles in flask are emerged, pre-polymerization is kept to terminate, flask is taken out
It is put into ice-water bath, until flask walls turn cold, the air of bubble and dissolving is removed by applying vacuum (650mmHg) makes prepolymer
Degassing；
(3) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(4) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 5
(1) 97.95 parts of MMA and 0.05 part of ABVN and 20.00 part of HEMA are uniformly mixed in 250mL flasks；
(2) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and ball condenser and thermometer (PID) are connected in flask to control
Temperature makes system maintain 80 DEG C and 20min, the 10s after a large amount of bubbles in flask are emerged, pre-polymerization is kept to terminate, flask is taken out
It is put into ice-water bath, until flask walls turn cold, the air of bubble and dissolving is removed by applying vacuum (650mmHg) makes prepolymer
Degassing；
(3) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(4) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 6
(1) 89.45 parts of MMA and 0.05 part of ABVN are uniformly mixed in beaker；
(2) 10.00 parts of HEMA and 0.50 part of 3- ethoxy anilid mesylates are added in beaker, ultrasonic 30min keeps it mixed
It closes uniform；
(3) solution being uniformly mixed in (1) (2) is placed in ultrasound 180min in 250mL flasks makes it be uniformly mixed；
(4) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and magnetic agitation keeps sulfonate evenly dispersed, is connected in flask spherical
Condenser and thermometer (PID) control temperature, so that system is maintained 80 DEG C of holding 20min, wait for that a large amount of bubbles are emerged in flask
10s afterwards, pre-polymerization terminate, and flask taking-up is put into ice-water bath, magnetic agitation is kept, until flask walls turn cold, it is true by applying
Empty (650mmHg), which removes bubble and the air of dissolving, makes prepolymer deaerate；
(5) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(6) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 70 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 7
(1) 89.35 parts of MMA and 0.05 part of ABVN are uniformly mixed in beaker；
(2) 10.00 parts of HEMA and 0.60 part of 3- ethoxy anilid mesylates are added in beaker, ultrasonic 30min keeps it mixed
It closes uniform；
(3) solution being uniformly mixed in (1) (2) is placed in 250mL flask ultrasounds 180min makes it be uniformly mixed；
(4) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and magnetic agitation keeps sulfonate evenly dispersed, is connected in flask spherical
Condenser and thermometer (PID) control temperature, so that system is maintained 80 DEG C of holding 20min, wait for that a large amount of bubbles are emerged in flask
10s or so afterwards, pre-polymerization terminate, and flask taking-up is put into ice-water bath, magnetic agitation is kept, until flask walls turn cold, by applying
Adding vacuum (650mmHg) to remove bubble and the air of dissolving makes prepolymer deaerate；
(5) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(6) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 8
(1) 89.25 parts of MMA and 0.05 part of ABVN are uniformly mixed in beaker；
(2) 10.00 parts of HEMA and 0.70 part of 3- ethoxy anilid mesylates are added in beaker, ultrasonic 30min keeps it mixed
It closes uniform；
(3) solution being uniformly mixed in (1) (2) is placed in ultrasound 180min in 250mL flasks makes it be uniformly mixed；
(4) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and magnetic agitation keeps sulfonate evenly dispersed, is connected in flask spherical
Condenser and thermometer (PID) control temperature, so that system is maintained 80 DEG C of holding 20min, wait for that a large amount of bubbles are emerged in flask
10s or so afterwards, pre-polymerization terminate, and flask taking-up is put into ice-water bath, magnetic agitation is kept, until flask walls turn cold, by applying
Adding vacuum (650mmHg) to remove bubble and the air of dissolving makes prepolymer deaerate；
(5) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(6) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 9
(1) 89.77 parts of MMA and 0.05 part of ABVN are uniformly mixed in beaker；
(2) 10.00 parts and 0.80 part of 3- ethoxy anilid mesylate are added in beaker, ultrasonic 30min keeps its mixing equal
It is even；
(3) solution being uniformly mixed in (1) (2) is placed in ultrasound 180min in 250mL flasks makes it be uniformly mixed；
(4) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and magnetic agitation keeps sulfonate evenly dispersed, is connected in flask spherical
Condenser and thermometer (PID) control temperature, so that system is maintained 80 DEG C of holding 20min, wait for that a large amount of bubbles are emerged in flask
10s or so afterwards, pre-polymerization terminate, and flask taking-up is put into ice-water bath, magnetic agitation is kept, until flask walls turn cold, by applying
Adding vacuum (650mmHg) to remove bubble and the air of dissolving makes prepolymer deaerate；
(5) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(6) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Embodiment 10
(1) 89.05 parts of MMA and 0.05 part of ABVN are uniformly mixed in beaker；
(2) 10.00 parts of HEMA and 0.09 part of 3- ethoxy anilid mesylates are added in beaker, ultrasonic 30min keeps it mixed
It closes uniform；
(3) solution being uniformly mixed in (1) (2) is placed in ultrasound 180min in 250mL flasks makes it be uniformly mixed；
(4) flask is placed in 80 DEG C of oil bath pans makes its pre-polymerization, and magnetic agitation keeps sulfonate evenly dispersed, is connected in flask spherical
Condenser and thermometer (PID) control temperature, so that system is maintained 80 DEG C of holding 20min, wait for that a large amount of bubbles are emerged in flask
10s or so afterwards, pre-polymerization terminate, and flask taking-up is put into ice-water bath, magnetic agitation is kept, until flask walls turn cold, by applying
Adding vacuum (650mmHg) to remove bubble and the air of dissolving makes prepolymer deaerate；
(5) glass plate purchased in market is washed three times with ethyl alcohol and deionized water respectively, it is dry, glass plate immersion is contained later
10s makes its surface hydrophobicity in the acetone soln (100.00g) of 1.50g hexadecyl trimethoxy silanes (HTEOS).Pretreatment
Afterwards, 60min is dried at room temperature；
(6) pre-polymerization liquid is injected through (mould specification 15cm × 15cm × 4mm) in the pretreated glass mold of silane coupling agent,
Taken out after water-bath 180min in 60 DEG C, in 100 DEG C of convection oven handle 60min make its curing molding to get at
Product.
Influence of the different intermediate monomer contents of table 1 to PMMA finished surfaces resistance and light transmittance
| Number | MMA numbers (part) | HEMA numbers (part) | Sheet resistance (Ω) | Light transmittance (%) |
| Embodiment 1 | 97.95 | 2.00 | 1012~1014 | 93.8 |
| Embodiment 2 | 94.95 | 5.00 | 1012~1014 | 91.2 |
| Embodiment 3 | 89.95 | 10.00 | 1012~1013 | 91.3 |
| Embodiment 4 | 84.95 | 15.00 | 1012~1013 | 90.8 |
| Embodiment 5 | 79.95 | 20.00 | 1012~1013 | 90.5 |
Influence of the different sulfonate contents of table 2 to PMMA finished surfaces resistance and light transmittance
| Number | MMA numbers (part) | HEMA numbers (part) | Sheet resistance (Ω) | Light transmittance (%) |
| Embodiment 6 | 89.45 | 0.50 | ＜ 1012 | 92.6 |
| Embodiment 7 | 89.35 | 0.60 | ＜ 1012 | 92.2 |
| Embodiment 8 | 89.25 | 0.70 | ＜ 1012 | 91.8 |
| Embodiment 9 | 89.77 | 0.80 | ＜ 1012 | 90.5 |
| Embodiment 10 | 89.05 | 0.90 | ＜ 1012 | 88.8 |
The additive amount of ABVN is 0.05 part in above-mentioned Tables 1 and 2, and the additive amount of HEMA is 10.00 parts in table 2.From above-mentioned table 1
In it can be seen that with the light transmittance of the increase PMMA finished products of intermediate monomer content change it is little, as can be seen from Table 2 with sulphur
The light transmittance of the increase PMMA of phosphate content declines.
Above example is only the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to
Embodiment is stated, acceptable there are many variations.Those skilled in the art become from present disclosure is directly derived
Change, is considered as protection scope of the present invention.
Claims (10)
1. a kind of transparent antistatic PMMA, which is characterized in that the transparent antistatic PMMA is prepared by the component of following parts by weight
It forms：68.00~99.00 parts of methyl methacrylate；0.03~0.20 part of initiator；1.00~30.00 parts of intermediate monomer；Sulphur
0~2.00 part of Barbiturates monomer.
2. a kind of transparent antistatic PMMA according to claim 1, which is characterized in that the initiator is azo or mistake
Oxide-based initiator.
3. a kind of transparent antistatic PMMA according to claim 1, which is characterized in that the Sulfonates monomer is 1- fourths
Base -3- methylimidazoles mesylate, l-tyrosine benzyl ester tosilate, 6- amidino groups-beta naphthal mesylate, 3- sulfonic acid third
One or more of methacrylic acid sylvite.
4. a kind of transparent antistatic PMMA according to claim 1, which is characterized in that the intermediate monomer is to contain simultaneously
The monomer of hydrophilic radical, hydrophobic grouping and double bond.
5. a kind of transparent antistatic PMMA according to claim 1 or 2 or 3 or 4, which is characterized in that the intermediate monomer
For one kind in hydroxyethyl methacrylate, hydroxypropyl acrylate, dimethacrylate 1,4-butanediol ester.
6. a kind of preparation method of transparent antistatic PMMA as described in claim 1, which is characterized in that the preparation method
Include the following steps：
(1) initiator is dissolved in be uniformly mixed in MMA and forms solution A；
(2) Sulfonates monomer is dissolved in intermediate monomer, ultrasound make its be uniformly mixed form solution B；
(3) solution B that the solution A that step (1) obtains is obtained with step (2) is placed in flask, ultrasonic mixing is uniform；
(4) flask is placed in pre-polymerization in oil bath pan, the air of bubble and dissolving is removed after pre-polymerization, pre-polymerization liquid is made to deaerate；
(5) simple glass plate purchased in market is handled with silane coupling agent, makes its surface hydrophobicity；
(6) the pre-polymerization liquid injection step (5) for obtaining step (4) is through in the pretreated glass mold of silane coupling agent, being placed in water
Solidification is reacted in bath, secondary curing is molded in convection oven later, obtains transparent antistatic PMMA.
7. the preparation method of transparent antistatic PMMA according to claim 6 a kind of, which is characterized in that the step (3)
80 DEG C~90 DEG C of middle ultrasonic temperature, ultrasonic time 60min.
8. the preparation method of transparent antistatic PMMA according to claim 6 a kind of, which is characterized in that the step (4)
The temperature of middle oil bath pan is 80 DEG C~90 DEG C, preferably 80 DEG C；The method of discrimination of pre-polymerization terminal is：After a large amount of bubbles are emerged in flask
10s is pre-polymerization terminal.
9. the preparation method of transparent antistatic PMMA according to claim 6 a kind of, which is characterized in that the step (5)
The middle specific method that glass plate purchased in market is handled with silane coupling agent is：Glass plate purchased in market is washed into drying with ethyl alcohol and deionized water
Afterwards, 10s in the acetone soln of the hexadecyl trimethoxy silane HTEOS containing 1.50g is immersed to dredge glass pane surface
Water process.
10. the preparation method of transparent antistatic PMMA described according to claim 6 or 7 or 8 or 9 a kind of, which is characterized in that institute
It is 15cm × 15cm × 4mm to state glass board mould specification in step (6)；Injection pre-polymerization liquid method be：Rubber ring is placed in use
It on the glass plate of silane coupling agent processing, is covered on rubber ring, is used through the processed glass plate of silane coupling agent with another piece
A gap is stayed in clip sealing, wherein by the injection of pre-polymerization liquid, with clip by two pieces of glass plate excellent sealings；The temperature of water-bath is 60
DEG C~75 DEG C, reaction time 180min；The temperature of convection oven is 100 DEG C~110 DEG C, in convection oven when curing process
Between be 60min.
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| CN109369843A (en) * | 2018-11-14 | 2019-02-22 | 安徽新涛光电科技有限公司 | A kind of preparation process of antistatic organic glass |
| CN110373122A (en) * | 2019-05-07 | 2019-10-25 | 浙江工业大学 | A kind of laminated glass intermediate coat and preparation method thereof |
| CN111499795A (en) * | 2020-05-07 | 2020-08-07 | 浙江展宇新材料有限公司 | Production process of PMMA monomer copolymerized organic glass |
| CN112666770A (en) * | 2021-01-12 | 2021-04-16 | 浙江工业大学 | Electrochromic flexible device based on P (SPMA-MMA) hydrogel electrolyte and preparation method and application thereof |
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| CN112666770B (en) * | 2021-01-12 | 2022-09-23 | 浙江工业大学 | Electrochromic flexible device based on P (SPMA-MMA) hydrogel electrolyte and preparation method and application thereof |
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