Antibacterial antistatic composition and volatile corrosion inhibitor film including the same
The present application relates to an antistatic composition, which includes a conductive structure formed by connecting a modified graphene oxide or a modified carbon nanotube with a conductive polymer; silver nanoparticles; and a solvent, and a corrosion inhibition film including the same. The corrosion inhibition film of the present application has excellent antibacterial activity and excellent corrosion inhibiting ability.
1 . An antibacterial antistatic composition, comprising:
a conductive structure which comprises a carbon nanotube or graphene oxide in which one or more oligomers selected from an acrylic oligomer and a urethane oligomer bind to its surface through a branch linkage, and a conductive polymer connected to the oligomer;
silver nanoparticles; and
a solvent,
wherein the oligomer comprises one or more of n number of first units with an acrylic group and m number of second units with a urethane group,
wherein the first unit is represented by Formula 4, and the second unit is represented by Formula 5,
wherein X 1 is a direct linkage, or a urethane group or a C 1 -C 10 alkylene group,
X 2 is a C 1 -C 10 alkylene group,
X 3 is a direct linkage, O or S,
m is an integer of 0 to 1000,
n is an integer of 0 to 1000, and
n+m is an integer of 1 to 1000.
2 . The antibacterial antistatic composition of claim 1 , comprising, based on the total weight of the composition,
1 to 49 wt % of the conductive structure;
0.1 to 1 wt % of the silver nanoparticles; and
50 to 98 wt % of the solvent.
3 . The antibacterial antistatic composition of claim 1 , wherein the silver nanoparticle has a diameter of 0.1 nm to 100 nm.
4 . The antibacterial antistatic composition of claim 1 , wherein the silver nanoparticle is coated with a silicone-based compound.
5 . The antibacterial antistatic composition of claim 1 , wherein the composition has a bacteria inhibition rate of 90% or more in an antibacterial test of measuring a bacteria reduction rate after the contact of a sample surface with a bacterial culture for 24 hours in accordance with KSM ISO 22196.
6 . The antibacterial antistatic composition of claim 1 , wherein the conductive polymer is one or more of poly(3,4-ethylenedioxythiopene) (PEDOT) and polystyrene sulfonic acid (PSS), and
wherein the PEDOT is represented by Formula 1, 2, or 3 below,
wherein A is
or —NH.
7 . The antibacterial antistatic composition of claim 1 , wherein the carbon nanotube or graphene oxide:the oligomer:the conductive polymer are connected in a weight ratio of 2:1:8 to 1:0.2:100.
8 . The antibacterial antistatic composition of claim 1 , wherein the conductive structure is represented by Formulas 8 to 11 below:
wherein, in Formula 8,
R is
each of n and m is independently an integer of 0 to 1000, and
k is an integer of 1 to 10,000,000,
wherein, in Formula 9,
R is
each of n and m is independently an integer of 0 to 1000, and
each of k and i is independently an integer of 1 to 10,000,000,
wherein, in Formula 10,
R is
each of n and m is independently an integer of 0 to 1000, and
k is an integer of 1 to 10,000,000,
wherein, in Formula 11,
R is
each of n and m is independently an integer of 0 to 1000, and
each of k and i is independently an integer of 1 to 10,000,000.
9 . A corrosion inhibition film, comprising:
a corrosion inhibiting resin layer; and
an antistatic coating layer formed of the antistatic composition of claim 1 at least one surface of the corrosion inhibiting resin layer.
10 . The corrosion inhibition film of claim 9 , wherein the corrosion inhibiting resin layer is formed of a composition comprising 70 to 90 wt % of a resin; 1 to 5 wt % of a nitrite; 1 to 5 wt % of a moisture absorbent, based on the total weight of the composition.
11 . The corrosion inhibition film of claim 10 , wherein the resin is at least one selected from the group consisting of a polyolefin, polystyrene, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate and a polyamide.
12 . The corrosion inhibition film of claim 11 , wherein the polyolefin is at least one selected from the group consisting of low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), metallocene polyethylene, high-density polyethylene (HDPE), polypropylene and ethylene vinyl acetate, and has a weight average molecular weight of 10,000 to 20,000 g/mol.