CN113861834A - Antistatic aluminum-plastic composite board and production process thereof - Google Patents

Antistatic aluminum-plastic composite board and production process thereof Download PDF

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CN113861834A
CN113861834A CN202111259008.6A CN202111259008A CN113861834A CN 113861834 A CN113861834 A CN 113861834A CN 202111259008 A CN202111259008 A CN 202111259008A CN 113861834 A CN113861834 A CN 113861834A
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antistatic
parts
aluminum
plastic composite
stirring
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徐炀
钱龙
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Zhangjiagang Feiteng Composite New Material Co Ltd
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Zhangjiagang Feiteng Composite New Material Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/017—Additives being an antistatic agent

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Abstract

The application belongs to the technical field of aluminum-plastic composite boards, and particularly relates to an antistatic aluminum-plastic composite board and a production process thereof, wherein the antistatic aluminum-plastic composite board comprises a plastic core board and aluminum plates on two sides, and the surfaces of the aluminum plates are coated with antistatic coating; the antistatic coating comprises the following components in parts by weight: 40-60 parts of urethane acrylate, 15-25 parts of reactive diluent, 10-20 parts of nano filler, 1-5 parts of photoinitiator, 0.5-4 parts of antistatic agent, 0.2-1 part of dispersant, 0.2-1 part of defoaming agent and 10-30 parts of solvent; the preparation method of the antistatic agent comprises the following steps: c is to be1‑C20Adding fatty alcohol into a reaction kettle, heating and melting, cooling to below 40 ℃, and slowly adding P2O5Heating to 50-60 ℃, stirring for reaction for 2-4h, continuously heating to 65-75 ℃, and adding diethanolamine to adjust the pH value to 7-8; c1‑C20The fatty alcohol is straight chain, and the hydroxyl is positioned at one end of the carbon chain. The antistatic agent in the antistatic coating on the surface of the aluminum plate is usedC1‑C20Different precipitation effects can be obtained by preparing the fatty alcohol with different carbon chain lengths, and a good antistatic effect can be achieved in a short period to a long period.

Description

Antistatic aluminum-plastic composite board and production process thereof
Technical Field
The application belongs to the technical field of aluminum-plastic composite boards, and particularly relates to an antistatic aluminum-plastic composite board and a production process thereof.
Background
An aluminum-plastic composite board (also called as an aluminum-plastic board) is a novel decorative material, and is rapidly favored by people due to economy, diversity of selectable colors, convenient construction method, excellent processing performance and excellent fire resistance since the aluminum-plastic composite board is introduced from Germany to China from the late 80 s to the early 90 s of the last century. The unique performance of the aluminum-plastic composite plate determines the wide application of the aluminum-plastic composite plate: can be used for the renovation of building outer walls, curtain wall boards and old buildings, the decoration of indoor walls and ceilings, advertising signboards, display racks and purification and dust prevention projects, and belongs to a novel building decoration material.
The static accumulation on the surface of the aluminum-plastic composite board easily causes the aluminum-plastic composite board to adsorb a large amount of dust, not only influences the decorative effect and is not easy to manage, but also causes adverse effects on the production and transportation of the aluminum-plastic composite board due to the accumulation of the static electricity.
In order to solve the problem of static accumulation on the surface of the aluminum-plastic composite panel, it is necessary to develop an aluminum-plastic composite panel with a good antistatic effect to prevent the static accumulation on the surface of the aluminum-plastic composite panel, thereby avoiding the adverse effect possibly caused by the static accumulation.
Disclosure of Invention
In order to solve the problems, the application discloses an antistatic aluminum-plastic composite plate and a production process thereof, the antistatic aluminum-plastic composite plate uses an alkyl phosphate antistatic agent in antistatic coating coated on the surface of an aluminum plate, and fatty alcohol adopted for preparing the antistatic agent is C1-C20The fatty alcohol and different carbon chain lengths are beneficial to obtaining different precipitation effects, so that a good antistatic effect can be achieved in a short period to a long period.
In a first aspect, the application provides an antistatic aluminum-plastic composite panel, which adopts the following technical scheme:
an antistatic aluminum-plastic composite plate comprises a plastic core plate in the middle and aluminum plates on two sides, wherein antistatic coating is coated on the surfaces of the aluminum plates; the antistatic coating comprises the following components in parts by weight: 40-60 parts of urethane acrylate, 15-25 parts of reactive diluent, 10-20 parts of nano filler, 1-5 parts of photoinitiator, 1-4 parts of antistatic agent, 0.2-1 part of dispersant, 0.2-1 part of defoaming agent and 10-30 parts of solvent;
the preparation method of the antistatic agent comprises the following steps: c is to be1-C20Adding fatty alcohol into a reaction kettle, stirring, heating for melting, cooling to below 40 ℃, and slowly adding P2O5Then heating to 50-60 ℃, stirring for reaction for 2-4h, then continuing heating to 65-75 ℃, and adding diethanolamine to adjust the pH value to 7-8;
said C is1-C20The carbon chain in the fatty alcohol is straight chain, and the hydroxyl is positioned at one end of the carbon chain.
Preferably, C is1-C20The fatty alcohol comprises 5-20 wt% of C2-C5Fatty alcohol, 15-30 wt% of C8-C12Fatty alcohol and balance C15-C20A fatty alcohol.
Preferably, C is15-C20The fatty alcohol comprises 10-30 wt% of enol, and the double bond and the hydroxyl in the enol are respectively positioned at two ends of a carbon chain.
Preferably, the nanofiller is one or both of nano silica and nano titania.
Preferably, the nanofiller is a silane coupling agent-modified nanofiller having double bonds.
Preferably, the particle size of the nanofiller is 10 to 30 nm.
Preferably, the photoinitiator is one or more of 4-phenylbenzophenone, isopropyl thioxanthone and phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide.
Preferably, the reactive diluent is one or more of hydroxyethyl acrylate, hydroxyethyl methacrylate, tripropylene glycol diacrylate and trimethylolpropane triacrylate; the solvent is one or more of alcohol solvent and ester solvent.
Preferably, the preparation method of the antistatic coating comprises the following steps: adding a dispersing agent into an active diluent and a solvent, uniformly stirring, adding a nano filler, stirring until the nano filler is uniformly dispersed, continuously adding urethane acrylate, uniformly stirring, sequentially adding an antistatic agent, an antifoaming agent and a photoinitiator under a light-tight condition, and uniformly stirring to obtain the antistatic coating.
In a second aspect, the application provides a production process of an antistatic aluminum-plastic composite board, which adopts the following technical scheme:
the production process of the antistatic aluminum-plastic composite board comprises the following steps:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking at 50-60 ℃ for 5-10 min in an infrared manner, and then carrying out UV curing, wherein the curing energy is 800mJ/cm2-1000mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
The application has the following beneficial effects:
(1) the application discloses antistatic plastic-aluminum composite board, what use in the antistatic coating of aluminum surface coating is alkyl phosphate antistatic agent, and the aliphatic alcohol that this antistatic agent of preparation adopted is C1-C20The fatty alcohol and different carbon chain lengths are beneficial to obtaining different precipitation effects, so that a good antistatic effect can be achieved in a short period to a long period.
(2) From 5 to 20% by weight of C2-C5Fatty alcohol, 15-30 wt% of C8-C12Fatty alcohol and balance C15-C20The alkyl phosphate antistatic agent is prepared from fatty alcohol, the compatibility of the antistatic agent and a system is better and better along with the increase of the length of a carbon chain, and C is used2-C5The antistatic agent prepared from fatty alcohol has relatively poor compatibility with a system, is easier to precipitate on the surface of a coating and has a short-term antistatic effect, and C8-C12The compatibility of the antistatic agent prepared from the fatty alcohol and the system is slightly better than that of the antistatic agent prepared from the fatty alcohol C2-C5In the case of (1), mainly exerts a medium-and long-term antistatic effect, C15-C20The antistatic agent prepared from the fatty alcohol has excellent compatibility with a system, has slower precipitation speed, and helps to play a long-term antistatic role, so that the prepared aluminum-plastic composite board has good short-term to long-term antistatic role.
(3) C used in the preparation of antistatic agent15-C20The aliphatic alcohol contains 10-30 wt% of enol, and the inventor finds that the antistatic agent prepared by adopting part of enol is beneficial to obtaining more continuous and stable antistatic effect through a large number of experiments, probably because part of the antistatic agent with terminal double bonds can be firmly fixed in a system through the bonding effect of the double bonds and urethane acrylate, so that a certain antistatic effect can be achieved all the time, and the instability of the antistatic effect caused by the insufficient control of the precipitation speed of the antistatic agent is compensated.
Drawings
The present application is further described below with reference to the drawings and examples.
FIG. 1 is a schematic structural diagram of an antistatic aluminum-plastic composite panel in the present application;
in the figure: 1. a plastic core board; 2. an aluminum plate.
Detailed Description
The present application will now be described in further detail with reference to examples.
Preparing an antistatic agent:
the antistatic agent I: adding 0.7 part of ethanol, 1.05 parts of n-butanol, 1.75 parts of 1-octanol, 1.75 parts of 1-nonanol, 3.5 parts of 1-decanol, 3.5 parts of 1-undecanol, 3.5 parts of 1-pentadecanol, 1.75 parts of 1-hexadecanol, 7 parts of 1-octadecanol and 10.5 parts of 1-nonadecanol into a reaction kettle, stirring and heating to be molten, then cooling to below 40 ℃, and slowly adding 20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 50 ℃ after the addition is finished, stirring for reacting for 4 hours, then continuously heating to 65 ℃, adding diethanolamine to adjust the pH value to 7, and discharging when the solution is hot to obtain the antistatic agent I.
And a second antistatic agent: adding 3.5 parts of ethanol, 1.75 parts of n-propanol, 1.75 parts of 1-pentanol, 1.75 parts of 1-nonanol, 1.75 parts of 1-decanol, 1.75 parts of 1-undecanol, 3.5 parts of 1-hexadecanol, 5.25 parts of 1-heptadecanol, 7 parts of 1-octadecanol and 7 parts of 1-eicosanol into a reaction kettle, stirring and heating to be molten, then cooling to below 40 ℃, and slowly adding 20 parts of P2O5Controlling the temperature below 40 deg.C, heating to 55 deg.C after adding, and stirringAnd (3) reacting for 3 h, then continuously heating to 70 ℃, adding diethanolamine to adjust the pH to 7.5, and discharging while the mixture is hot to obtain the second antistatic agent.
And (3) antistatic agent III: adding 1.75 parts of n-propanol, 1.75 parts of n-butanol, 1.75 parts of 1-octanol, 3.5 parts of 1-decanol, 3.5 parts of 1-undecanol, 1.75 parts of 1-dodecanol, 7 parts of 1-hexadecanol, 7 parts of 1-octadecanol and 7 parts of 1-nonadecanol into a reaction kettle, stirring and heating to melt, then cooling to below 40 ℃, and slowly adding 20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 60 ℃ after the addition is finished, stirring for reaction for 2 h, then continuously heating to 675 ℃, adding diethanolamine to adjust the pH value to 7, and discharging when the solution is hot to obtain the third antistatic agent.
And (4) antistatic agent IV: adding 1.75 parts of ethanol, 1.75 parts of n-propanol, 1.75 parts of 1-pentanol, 1.75 parts of 1-nonanol, 2.8 parts of 1-decanol, 1.75 parts of 1-undecanol, 2.45 parts of 1-pentadecanol, 3.5 parts of 1-hexadecanol, 7 parts of 1-heptadecanol, 7 parts of 1-nonadecanol and 3.5 parts of 1-eicosanol into a reaction kettle, stirring and heating to melt, then cooling to below 40 ℃, and slowly adding 20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 55 ℃ after the addition is finished, stirring for reaction for 3 h, then continuously heating to 70 ℃, adding diethanolamine to adjust the pH value to 8, and discharging when the solution is hot to obtain the antistatic agent IV.
And (5) antistatic agent V: adding 2.8 parts of n-propanol, 1.4 parts of 1-pentanol, 1.05 parts of 1-octanol, 3.5 parts of 1-decanol, 3.5 parts of 1-undecanol, 5.25 parts of 1-hexadecanol, 7 parts of 1-heptadecanol, 3.5 parts of 1-octadecanol and 7 parts of 1-nonadecanol into a reaction kettle, stirring and heating the mixture to be molten, then cooling the mixture to below 40 ℃, and slowly adding 20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 55 ℃ after the addition is finished, stirring for reacting for 3 h, then continuously heating to 70 ℃, adding diethanolamine to adjust the pH value to 7.5, and discharging when the solution is hot to obtain the antistatic agent V.
And sixth antistatic agent: adding 2.8 parts of n-propanol, 1.4 parts of 1-pentanol, 1.05 parts of 1-octanol, 3.5 parts of 1-decanol, 3.5 parts of 1-undecanol, 5.25 parts of 15-hexadecen-1-ol, 7 parts of 1-heptadecanol, 3.5 parts of 1-octadecanol and 7 parts of 1-nonadecanol into a reaction kettle, stirring and heating to be molten, then cooling to below 40 ℃, and slowly adding20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 55 ℃ after the addition is finished, stirring for reaction for 3 h, then continuously heating to 70 ℃, adding diethanolamine to adjust the pH value to 7.5, and discharging when the solution is hot to obtain the antistatic agent six.
And (3) an antistatic agent seven: adding 1.05 parts of 1-octanol, 5.6 parts of 1-decanol, 3.5 parts of 1-undecanol, 5.25 parts of 1-hexadecanol, 7 parts of 1-heptadecanol, 5.6 parts of 1-octadecanol and 7 parts of 1-nonadecanol into a reaction kettle, stirring and heating to melt, then cooling to below 40 ℃, and slowly adding 20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 55 ℃ after the addition is finished, stirring for reaction for 3 h, then continuously heating to 70 ℃, adding diethanolamine to adjust the pH value to 7.5, and discharging when the solution is hot to obtain the antistatic agent seven.
And eighth antistatic agent: adding 2.8 parts of n-propanol, 5.95 parts of 1-pentanol, 5.25 parts of 1-hexadecanol, 7 parts of 1-heptadecanol, 7 parts of 1-octadecanol and 7 parts of 1-nonadecanol into a reaction kettle, stirring and heating to be molten, then cooling to below 40 ℃, and slowly adding 20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 55 ℃ after the addition is finished, stirring for reacting for 3 h, then continuously heating to 70 ℃, adding diethanolamine to adjust the pH value to 7.5, and discharging when the solution is hot to obtain the antistatic agent VIII.
And (4) an antistatic agent nine: adding 2.8 parts of n-propanol, 11.9 parts of 1-pentanol, 1.05 parts of 1-octanol, 8.75 parts of 1-decanol and 10.5 parts of 1-undecanol into a reaction kettle, stirring and heating to be molten, then cooling to below 40 ℃, and slowly adding 20 parts of P2O5And controlling the temperature below 40 ℃ in the period, heating to 55 ℃ after the addition is finished, stirring for reacting for 3 h, then continuously heating to 70 ℃, adding diethanolamine to adjust the pH value to 7.5, and discharging when the solution is hot to obtain the nine antistatic agent.
As shown in fig. 1, the antistatic aluminum-plastic composite panel comprises a plastic core plate 1 in the middle and aluminum plates 2 at two sides, wherein the surfaces of the aluminum plates 2 are coated with antistatic paint, and the preparation method is as follows.
Example 1
Preparing an antistatic coating: adding 0.2 part of dispersant SN-5040, 5 parts of hydroxyethyl acrylate, 10 parts of tripropylene glycol diacrylate, 7 parts of ethyl acetate and 3 parts of ethanol into a stirring kettle, uniformly stirring, then adding 5 parts of KH570 modified nano titanium dioxide and 5 parts of KH570 modified nano silicon dioxide, stirring and dispersing at the rotating speed of 1200 r/min for 30 min, continuously adding 40 parts of polyurethane acrylate, stirring and dispersing at the rotating speed of 800 r/min for 10 min, finally sequentially adding 1 part of antistatic agent I, 0.2 part of defoaming agent TEGO Airex 900 and 1 part of 4-phenyl benzophenone under the dark condition, and uniformly stirring to obtain the antistatic coating.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 10 min at 50 ℃, and then carrying out UV curing, wherein the curing energy is 800mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Example 2
Preparing an antistatic coating: 0.4 part of dispersant SN-5040, 7 parts of hydroxyethyl methacrylate, 10 parts of tripropylene glycol diacrylate, 10 parts of butyl acetate and 5 parts of n-butyl alcohol are added into a stirring kettle to be uniformly stirred, 6 parts of KH570 modified nano titanium dioxide and 6 parts of KH570 modified nano silicon dioxide are added, stirring and dispersing are carried out at the rotating speed of 1200 r/min for 30 min, 45 parts of polyurethane acrylate is continuously added, stirring and dispersing are carried out at the rotating speed of 800 r/min for 10 min, finally, 2 parts of antistatic agent II, 0.4 part of defoaming agent TEGO Airex 900 and 2 parts of isopropyl thioxanthone are sequentially added under the dark condition, and the antistatic coating is obtained after uniform stirring.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking at 60 ℃ for 5 min in an infrared manner, and then carrying out UV curing, wherein the curing energy is 1000mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Example 3
Preparing an antistatic coating: adding 0.8 part of dispersant SN-5040, 10 parts of hydroxyethyl acrylate, 13 parts of trimethylolpropane triacrylate, 15 parts of ethyl acetate and 10 parts of ethanol into a stirring kettle, uniformly stirring, then adding 8 parts of KH570 modified nano titanium dioxide and 9 parts of KH570 modified nano silicon dioxide, stirring and dispersing at the rotating speed of 1200 r/min for 30 min, continuously adding 55 parts of polyurethane acrylate, stirring and dispersing at the rotating speed of 800 r/min for 10 min, finally sequentially adding 3 parts of antistatic agent III, 0.8 part of defoamer TEGO Airex 900 and 4 parts of phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide under the dark condition, and uniformly stirring to obtain the antistatic coating.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 7 min at 55 ℃ in an infrared manner, and then carrying out UV curing, wherein the curing energy is 900mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Example 4
Preparing an antistatic coating: 1 part of dispersing agent SN-5040, 10 parts of hydroxyethyl methacrylate, 15 parts of trimethylolpropane triacrylate, 20 parts of butyl acetate and 10 parts of ethanol are added into a stirring kettle to be uniformly stirred, then 10 parts of KH570 modified nano titanium dioxide and 10 parts of KH570 modified nano silicon dioxide are added, stirring and dispersing are carried out for 30 min at the rotating speed of 1200 r/min, 60 parts of urethane acrylate is continuously added, stirring and dispersing are carried out for 10 min at the rotating speed of 800 r/min, finally 4 parts of antistatic agent IV, 1 part of defoaming agent TEGO Airex 900 and 5 parts of phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide are sequentially added under the condition of keeping out of the sun, and the antistatic coating is obtained after uniform stirring.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 8 min at 55 ℃ in an infrared manner, and then carrying out UV curing, wherein the curing energy is 900mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Example 5
Preparing an antistatic coating: 0.6 part of dispersing agent SN-5040, 10 parts of hydroxyethyl methacrylate, 10 parts of tripropylene glycol diacrylate, 15 parts of ethyl acetate and 5 parts of n-butyl alcohol are added into a stirring kettle and uniformly stirred, then 7 parts of KH570 modified nano titanium dioxide and 8 parts of KH570 modified nano silicon dioxide are added, stirring and dispersing are carried out at the rotating speed of 1200 r/min for 30 min, 50 parts of polyurethane acrylate is continuously added, stirring and dispersing are carried out at the rotating speed of 800 r/min for 10 min, finally 2.5 parts of antistatic agent V, 0.6 part of defoaming agent TEGO Airex 900 and 3 parts of isopropyl thioxanthone are sequentially added under the dark condition, and the antistatic coating is obtained by uniformly stirring.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 8 min at 55 ℃ in an infrared manner, and then carrying out UV curing, wherein the curing energy is 900mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Example 6
Preparing an antistatic coating: 0.6 part of dispersing agent SN-5040, 10 parts of hydroxyethyl methacrylate, 10 parts of tripropylene glycol diacrylate, 15 parts of ethyl acetate and 5 parts of n-butyl alcohol are added into a stirring kettle and uniformly stirred, then 7 parts of KH570 modified nano titanium dioxide and 8 parts of KH570 modified nano silicon dioxide are added, stirring and dispersing are carried out at the rotating speed of 1200 r/min for 30 min, 50 parts of polyurethane acrylate is continuously added, stirring and dispersing are carried out at the rotating speed of 800 r/min for 10 min, finally 2.5 parts of antistatic agent six, 0.6 part of defoaming agent TEGO Airex 900 and 3 parts of isopropyl thioxanthone are sequentially added under the dark condition, and the antistatic coating is obtained after uniform stirring.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 8 min at 55 ℃ in an infrared manner, and then carrying out UV curing, wherein the curing energy is 900mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Comparative example 1
Preparing an antistatic coating: 0.6 part of dispersing agent SN-5040, 10 parts of hydroxyethyl methacrylate, 10 parts of tripropylene glycol diacrylate, 15 parts of ethyl acetate and 5 parts of n-butyl alcohol are added into a stirring kettle and uniformly stirred, then 7 parts of KH570 modified nano titanium dioxide and 8 parts of KH570 modified nano silicon dioxide are added, stirring and dispersing are carried out at the rotating speed of 1200 r/min for 30 min, 50 parts of polyurethane acrylate is continuously added, stirring and dispersing are carried out at the rotating speed of 800 r/min for 10 min, finally 2.5 parts of antistatic agent seven, 0.6 part of defoaming agent TEGO Airex 900 and 3 parts of isopropyl thioxanthone are sequentially added under the dark condition, and the antistatic coating is obtained after uniform stirring.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 8 min at 55 ℃ in an infrared manner, and then carrying out UV curing, wherein the curing energy is 900mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Comparative example 2
Preparing an antistatic coating: 0.6 part of dispersing agent SN-5040, 10 parts of hydroxyethyl methacrylate, 10 parts of tripropylene glycol diacrylate, 15 parts of ethyl acetate and 5 parts of n-butyl alcohol are added into a stirring kettle and uniformly stirred, then 7 parts of KH570 modified nano titanium dioxide and 8 parts of KH570 modified nano silicon dioxide are added, stirring and dispersing are carried out at the rotating speed of 1200 r/min for 30 min, 50 parts of urethane acrylate is continuously added, stirring and dispersing are carried out at the rotating speed of 800 r/min for 10 min, finally 2.5 parts of antistatic agent eight, 0.6 part of defoaming agent TEGO Airex 900 and 3 parts of isopropyl thioxanthone are sequentially added under the dark condition, and the antistatic coating is obtained after uniform stirring.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 8 min at 55 ℃ in an infrared manner, and then carrying out UV curing, wherein the curing energy is 900mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
Comparative example 3
Preparing an antistatic coating: 0.6 part of dispersing agent SN-5040, 10 parts of hydroxyethyl methacrylate, 10 parts of tripropylene glycol diacrylate, 15 parts of ethyl acetate and 5 parts of n-butyl alcohol are added into a stirring kettle and uniformly stirred, then 7 parts of KH570 modified nano titanium dioxide and 8 parts of KH570 modified nano silicon dioxide are added, stirring and dispersing are carried out at the rotating speed of 1200 r/min for 30 min, 50 parts of urethane acrylate is continuously added, stirring and dispersing are carried out at the rotating speed of 800 r/min for 10 min, finally 2.5 parts of an antistatic agent nine, 0.6 part of a defoaming agent TEGO Airex 900 and 3 parts of isopropyl thioxanthone are sequentially added under the dark condition, and the antistatic coating is obtained by uniformly stirring.
Preparing an antistatic aluminum-plastic composite board:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking for 8 min at 55 ℃ in an infrared manner, and then carrying out UV curing, wherein the curing energy is 900mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
The antistatic coatings prepared in examples 1 to 6 and comparative examples 1 to 3 were subjected to antistatic property tests, and the test results are shown in table 1.
TABLE 1
7 days surface resistance/omega Surface resistance/omega for 30 days 90 days surface resistance/omega Surface resistance/omega for 360 days
Example 1 4.3×106 3.3×106 3.8×106 5.4×106
Example 2 6.9×105 7.2×105 7.7×105 8.5×105
Example 3 5.9×105 5.5×105 5.8×105 7.5×105
Example 4 2.7×105 2.7×105 2.9×105 4.2×105
Example 5 6.2×105 6.2×105 6.5×105 8.0×105
Example 6 5.8×105 5.8×105 6.0×105 6.5×105
Comparative example 1 2.4×106 6.7×105 6.1×105 7.3×105
Comparative example 2 5.3×105 9.8×105 1.2×106 7.4×105
Comparative example 3 1.1×105 1.2×105 1.6×105 3.7×107
It can be seen from examples 1-6 of the present application that the surface resistance of the antistatic coating prepared in each example except example 1 was 10 due to the small amount of the antistatic agent6Besides, it can reach 10 in all cases5. And according to the surface resistance measured at different time, the antistatic coating prepared by each embodiment can keep a long-term stable antistatic effect. Further, as is clear from example 6, when the antistatic agent used in example 6 was replaced with an equal part by weight of 15-hexadecen-1-ol for 1-hexadecanol in antistatic agent five as compared with example 5, the change of the surface resistance of the obtained antistatic coating in 360 days and 7 days is obviously smaller than that of the antistatic coating in example 5, which shows that the antistatic coating in example 6 can play a more continuous and stable antistatic effect, this is probably because the carbon chain end of part of the antistatic agent six has double bonds, and can be firmly fixed in the system through the bonding effect of the double bonds and the urethane acrylate, even if the phosphate moiety is precipitated on the surface, it can be "tethered" in the matrix by the bonding action of the double bond, therefore, the antistatic agent can play a certain antistatic role all the time, and the instability of the antistatic effect caused by the insufficient control of the precipitation speed of the antistatic agent is compensated. As can be seen from comparative example 1, when the antistatic agent one used does not contain C2-C5When the carbon chain is short, the overall precipitation speed of the antistatic agent is low, and a good antistatic effect cannot be achieved in the initial stage, but the antistatic agent with the long carbon chain gradually precipitates outwards along with the passage of time, so that the antistatic effect is gradually and obviously improved. From comparative example2, it can be seen that C is contained in the antistatic agent2-C5And short carbon chain of C15-C20Has a high content of long carbon chains and therefore has good initial and long-term antistatic effects, but lacks C8-C12The carbon chain with the length has poor antistatic effect in the middle period. As can be seen from comparative example 3, due to C in the antistatic agent2-C5And short carbon chain of C8-C12Has better initial and middle antistatic effect due to higher content of medium and long carbon chains, but lacks C15-C20The long carbon chain of (2) results in a significant reduction in long-term antistatic effect.
The present embodiment is merely illustrative and not restrictive, and various changes and modifications may be made by persons skilled in the art without departing from the scope of the present invention as defined in the appended claims. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The antistatic aluminum-plastic composite board is characterized in that: the antistatic aluminum plate comprises a plastic core plate in the middle and aluminum plates on two sides, wherein the surfaces of the aluminum plates are coated with antistatic paint; the antistatic coating comprises the following components in parts by weight: 40-60 parts of urethane acrylate, 15-25 parts of reactive diluent, 10-20 parts of nano filler, 1-5 parts of photoinitiator, 1-4 parts of antistatic agent, 0.2-1 part of dispersant, 0.2-1 part of defoaming agent and 10-30 parts of solvent;
the preparation method of the antistatic agent comprises the following steps: c is to be1-C20Adding fatty alcohol into a reaction kettle, stirring, heating for melting, cooling to below 40 ℃, and slowly adding P2O5Then heating to 50-60 ℃, stirring for reaction for 2-4h, then continuing heating to 65-75 ℃, and adding diethanolamine to adjust the pH value to 7-8;
said C is1-C20The carbon chain in the fatty alcohol is straight chain, and the hydroxyl is positioned at one end of the carbon chain.
2. As claimed in claim 1The antistatic aluminum-plastic composite board is characterized in that: said C is1-C20The fatty alcohol comprises 5-20 wt% of C2-C5Fatty alcohol, 15-30 wt% of C8-C12Fatty alcohol and balance C15-C20A fatty alcohol.
3. The antistatic aluminum-plastic composite panel of claim 1, wherein: said C is15-C20The fatty alcohol comprises 10-30 wt% of enol, and the double bond and the hydroxyl in the enol are respectively positioned at two ends of a carbon chain.
4. The antistatic aluminum-plastic composite panel of claim 1, wherein: the nano filler is one or two of nano silicon dioxide and nano titanium dioxide.
5. The antistatic aluminum-plastic composite panel of claim 1, wherein: the nano filler is modified by a silane coupling agent with double bonds.
6. The antistatic aluminum-plastic composite panel of claim 1, wherein: the grain diameter of the nano filler is 10-30 nm.
7. The antistatic aluminum-plastic composite panel of claim 1, wherein: the photoinitiator is one or more of 4-phenyl benzophenone, isopropyl thioxanthone and phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide.
8. The antistatic aluminum-plastic composite panel of claim 1, wherein: the active diluent is one or more of hydroxyethyl acrylate, hydroxyethyl methacrylate, tripropylene glycol diacrylate and trimethylolpropane triacrylate; the solvent is one or more of alcohol solvent and ester solvent.
9. The antistatic aluminum-plastic composite panel of claim 1, wherein: the preparation method of the antistatic coating comprises the following steps: adding a dispersing agent into an active diluent and a solvent, uniformly stirring, adding a nano filler, stirring until the nano filler is uniformly dispersed, continuously adding urethane acrylate, uniformly stirring, sequentially adding an antistatic agent, an antifoaming agent and a photoinitiator under a light-tight condition, and uniformly stirring to obtain the antistatic coating.
10. The production process of the antistatic aluminum-plastic composite board as claimed in claim 1, characterized in that: the method comprises the following steps:
(1) pretreatment of an aluminum plate: wiping the surface of the aluminum plate with alcohol to remove oil, and then carrying out electrostatic dust removal;
(2) preparing an antistatic coating: uniformly coating antistatic coating on the surface of an aluminum plate, then baking at 50-60 ℃ for 5-10 min in an infrared manner, and then carrying out UV curing, wherein the curing energy is 800mJ/cm2-1000mJ/cm2；
(3) And compounding the aluminum plates on the two sides and the plastic core plate in the middle by using hot melt adhesive to obtain the antistatic aluminum-plastic composite plate.
CN202111259008.6A 2021-10-28 2021-10-28 Antistatic aluminum-plastic composite board and production process thereof Pending CN113861834A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202242174U (en) * 2011-09-20 2012-05-30 联合金属科技（威海）有限公司 Ultra-thick pre-roll coating antistatic aluminium-plastic composite panel
CN102582163A (en) * 2011-12-29 2012-07-18 大连创达技术交易市场有限公司 Antistatic flame-resistant aluminum-plastic composite panel
CN102731564A (en) * 2012-07-06 2012-10-17 太仓市新星轻工助剂厂 Synthesis method of alkyl phosphate salt antistatic agent
CN112745520A (en) * 2020-12-29 2021-05-04 苏州欧纳克纳米科技有限公司 Antistatic and aging-resistant polyimide explosion-proof membrane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202242174U (en) * 2011-09-20 2012-05-30 联合金属科技（威海）有限公司 Ultra-thick pre-roll coating antistatic aluminium-plastic composite panel
CN102582163A (en) * 2011-12-29 2012-07-18 大连创达技术交易市场有限公司 Antistatic flame-resistant aluminum-plastic composite panel
CN102731564A (en) * 2012-07-06 2012-10-17 太仓市新星轻工助剂厂 Synthesis method of alkyl phosphate salt antistatic agent
CN112745520A (en) * 2020-12-29 2021-05-04 苏州欧纳克纳米科技有限公司 Antistatic and aging-resistant polyimide explosion-proof membrane

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Application publication date: 20211231