Polyphenylene ether-based resin composition and molded product using the same

1. A polyphenylene-ether-based resin composition, consisting essentially of:

(A) a base resin including (A-1) about 5 to about 95 wt % of a polyphenylene ether-based resin and (A-2) about 5 to about 95 wt % of a polyamide resin;

(B) about 0.01 to about 5 parts by weight of carbon nanotube, based on about 100 parts by weight of the base resin;

(C) about 1 to about 20 parts by weight of a styrene-based copolymer, based on about 100 parts by weight of the base resin;

(D) about 1 to about 20 parts by weight of an olefin-based copolymer, based on about 100 parts by weight of the base resin; and

(E) optionally a reactive monomer.

2. The polyphenylene-ether-based resin composition of claim 1 , wherein the polyphenylene ether-based resin (A-1) is a polyphenylene ether resin, or a mixture of a polyphenylene ether and a vinyl aromatic polymer.

3. The polyphenylene-ether-based resin composition of claim 2 , wherein the polyphenylene ether resin is poly(2,6-dimethyl-1,4-phenylene)ether, poly(2,6-diethyl-1,4-phenylene)ether, poly(2,6-dipropyl-1,4-phenylene)ether, poly(2-methyl-6-ethyl-1,4-phenylene)ether, poly(2-methyl-6-propyl-1,4-phenylene)ether, poly(2-ethyl-6-propyl-1,4-phenylene)ether, poly(2,6-diphenyl-1,4-phenylene)ether, a copolymer of poly(2,6-dimethyl-1,4-phenylene)ether and poly (2,3,6-trimethyl-1,4-phenylene)ether, a copolymer of poly (2,6-dimethyl-1,4-phenylene)ether and poly(2,3,6-triethyl-1,4-phenylene)ether, or a combination thereof.

4. The polyphenylene-ether-based resin composition of claim 1 , wherein the polyamide resin (A-2) is polycaprolactam (polyamide 6), poly(11-aminoundecanoic acid) (polyamide 11), polylauryllactam (polyamide 12), polyhexamethylene adipamide (polyamide 66), polyhexamethylene azelamide (polyamide 69), polyhexamethylene sebacamide (polyamide 610), polyhexamethylene dodecanodiamide (polyamide 612), a copolymer thereof, or a combination thereof.

5. The polyphenylene-ether-based resin composition of claim 1 , wherein the carbon nanotubes (B) have a diameter of about 0.5 to about 100 nm, and a length of about 0.01 to about 100 μm.

6. The polyphenylene-ether-based resin composition of claim 1 , wherein the styrene-based copolymer (C) is an AB-type diblock copolymer, a ABA-type triblock copolymer, a radical block copolymer, or a combination thereof.

7. The polyphenylene-ether-based resin composition of claim 1 , wherein the styrene-based copolymer (C) is a copolymer of a vinyl aromatic monomer, and a diene comprising a hydrogenated unsaturated diene, a partially hydrogenated unsaturated diene, an unsaturated diene without hydrogenation, or a combination thereof.

8. The polyphenylene-ether-based resin composition of claim 1 , wherein the olefin-based copolymer (D) is a copolymer polymerized with different olefin-based monomers, or a copolymer of an olefin-based monomer and an acrylic-based monomer.

9. The polyphenylene-ether-based resin composition of claim 1 , wherein the olefin-based copolymer (D) comprises a reactive group capable of reacting with the polyamide resin.

10. The polyphenylene-ether-based resin composition of claim 9 , wherein the reactive group comprises a maleic anhydride group, an epoxy group, or a combination thereof.

11. The polyphenylene-ether-based resin composition of claim 1 , wherein the reactive monomer (E) is present in an amount of about 0.5 to about 2 parts by weight based on about 100 parts by weight of the base resin.

12. The polyphenylene-ether-based resin composition of claim 11 , wherein the reactive monomer (E) comprises an unsaturated carboxylic acid or an anhydride group thereof.

13. The polyphenylene-ether-based resin composition of claim 11 , wherein the reactive monomer (E) is citric acid anhydride, maleic anhydride, maleic acid, itaconic anhydride, fumaric acid, (meth)acrylic acid, (meth)acrylic acid ester, or a combination thereof.

14. A molded product made using the polyphenylene-ether-based resin composition of claim 1 .