Polycarbonate composition and article comprising the same
The present invention relates to a polycarbonate composition including a polycarbonate and an impact reinforcing agent, and an inorganic filler to improve a mechanical property thereof, and a copolycarbonate to solve a problem of appearance defect caused by including the inorganic filler.
1. A polycarbonate composition comprising:
a polycarbonate,
an impact reinforcing agent,
a copolycarbonate comprising an aromatic polycarbonate-based first repeating unit;
and one or more aromatic polycarbonate-based second repeating units having siloxane bonds, and
an inorganic filler,
wherein the first repeating unit is represented by Chemical Formula 1 below, and
the second repeating unit comprises a repeating unit represented by Chemical Formula 2 below and a repeating unit represented by Chemical Formula 3 below:
in the Chemical Formula 1,
R 1 , R 2 , R 3 and R 4 are each independently hydrogen, C 1-10 alkyl, C 1-10 alkoxy, or halogen, and
Z is C 1-10 alkylene unsubstituted or substituted with phenyl, C 3-15 cycloalkylene unsubstituted or substituted with C 1-10 alkyl, O, S, SO, SO 2 , or CO,
in the Chemical Formula 2,
X 1 is each independently C 1-10 alkylene,
R 5 is each independently hydrogen; C 1-15 alkyl unsubstituted or substituted with oxiranyl, oxiranyl-substituted C 1-10 alkoxy, or C 6-20 aryl; halogen; C 1-10 alkoxy; allyl; C 1-10 haloalkyl; or C 6-20 aryl, and
n is an integer of 10 to 200,
in the Chemical Formula 3,
X 2 is each independently C 1-10 alkylene,
Y 1 is each independently hydrogen, C 1-6 alkyl, halogen, hydroxy, C 1-6 alkoxy, or C 6-20 aryl,
R 6 is each independently hydrogen; C 1-15 alkyl unsubstituted or substituted with oxiranyl, oxiranyl-substituted C 1-10 alkoxy, or C 6-20 aryl; halogen; C 1-10 alkoxy; allyl; C 1-10 haloalkyl; or C 6-20 aryl, and
m is an integer of 10 to 200.
2. The polycarbonate composition of claim 1 , wherein:
the polycarbonate composition comprises 1 to 13 parts by weight of the polycarbonate,
1 part by weight of the impact reinforcing agent,
1 to 6 parts by weight of the copolycarbonate, and
0.5 to 4 parts by weight of the inorganic filler.
3. The polycarbonate composition of claim 1 , wherein:
the polycarbonate comprises a repeating unit represented by Chemical Formula 4 below:
in the Chemical Formula 4,
R′ 1 , R′ 2 , R′ 3 and R′ 4 are each independently hydrogen, C 1-10 alkyl, C 1-10 alkoxy, or halogen, and
Z′ is C 1-10 alkylene unsubstituted or substituted with phenyl, C 3-15 cycloalkylene unsubstituted or substituted with C 1-10 alkyl, O, S, SO, SO 2 , or CO.
4. The polycarbonate composition of claim 1 , wherein:
the impact reinforcing agent is a methylmethacrylate-butadiene-styrene-based copolymer, a styrene-acrylonitrile-based copolymer, an acrylonitrile-butadiene-styrene-based copolymer, or mixtures thereof.
5. The polycarbonate composition of claim 1 , wherein:
the polycarbonate composition comprises 5 to 13 parts by weight of the polycarbonate.
6. The polycarbonate composition of claim 1 , wherein:
the polycarbonate has a weight average molecular weight of 1,000 to 100,000.
7. The polycarbonate composition of claim 1 , wherein:
the copolycarbonate has a weight average molecular weight of 1,000 to 100,000.
8. The polycarbonate composition of claim 1 , further comprising:
0.5 to 4 parts by weight of a flame retardant.
9. The polycarbonate composition of claim 8 , wherein:
the flame retardant is a phosphorus-based flame retardant.
10. The polycarbonate composition of claim 9 , wherein:
the phosphorus-based flame retardant is bisphenol-A bis(diphenyl phosphate).
11. The polycarbonate composition of claim 1 , wherein:
the inorganic filler is talc, wollastonite, mica, or mixtures thereof.
12. An article manufactured by the polycarbonate composition of claim 1 .