MBS상용화제를 사용한 PC/PET Alloy의 제조와 그 물성

이용무; 강두환

Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.1, 54-62, February, 1994

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MBS상용화제를 사용한 PC/PET Alloy의 제조와 그 물성

Preparation of Properties of PC/PBT Alloy Using MBS Compatibility

이용무, 강두환

초록

비결정성인 PC와 결정성인 PET를 블렌드하여 PC/PET합금을 제조하는데 있어서 PC 및 PET와 혼화성이 우수한 methylmethacrylate와 butadiene, 그리고 내충격성이 우수한 polystyrene의 block unite를 갖는 methylmethacrylate-butadiane-styrene(MBS) 공중합체를 상용화제로 사용함으로써 강인성과 내충격강도가 우수하고 PC의 함량을 15parts 이상 사용하여도 혼화성이 우수한 PC/PET 합금을 얻었다 열적 특성으로 PC/PET에 MBS를 첨가하여 얻은 alloy에 대한 PC와 PET의 Tg차이가 60℃ 정도로 좁아지고 Tcc도 150℃로 낮아짐으로써 혼화성이 향상되었으며 또한 PC의 함량이 15parts 이상으로 증가하여도 고속충격강도가 우수하였고 Morphology에서도 입자구조가 조밀하고 균일하게 분포되어 있음을 알 수 있었다.

Bisphenol A polycarbonate(PC) and polyethylene terephthalate(PET) was blended with methylmethacrylate-butadiene-styrene(MBS) copolymer for the improvement of impact resistance strength PC/PET alloy blending with PC more than 15 parts to 100 parts of PET usually have poor compatability, but increased the compatability characteristics of PC/PET alloy prepared by addition of MBS compatabilizer. The compatability of PC and PET using compatabilizer, MBS was determined by measuring the thermal characteristics of Tg difference between PC and PET, and crystallization temperature, Tcc. As the Tg difference becoming narrow to 60℃, and Tcc decreasing to 150℃, the comparability of PC and PET was increased. And also tough rate impact strength to PC/PET alloy using MBS was increased, in case more than 15 parts of PC being blended to PET.

[References]

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[1] Godard P, Dekoninck JM, Devlesaver V, Devaux J, J. Polym. Sci., 24, 3301 (1986)

[2] O'Gara JF, Williams DJ, Macknight WJ, Karaz FE, J. Polym. Sci. B: Polym. Phys., 25, 1519 (1987)

[3] Paul DR, Wahrmund DC, Barlow JW, J. Appl. Polym. Sci., 22, 2155 (1978)

[4] Paul DR, Nassar TR, Barlow JW, J. Appl. Polym. Sci., 23, 85 (1979)

[5] Imken RL, Paul DR, Barlow JW, Polym. Eng. Sci., 16, 593 (1976)

[6] Murff SR, Barlow JW, Paul DR, J. Appl. Polym. Sci., 29, 3231 (1984)

[7] Kim WN, Burns CM, Macromolecules, 20, 1876 (1987)

[8] Suzuki T, Tanaka H, Nishi T, Polymer, 30, 1287 (1989)

[9] Ahn TO, Lee SM, Jeong HM, Eur. Polym. J., 25, 95 (1989)

[10] Devaux J, Godard P, Mercier JP, Polym. Eng. Sci., 22, 229 (1982)

[11] Kim WN, Burns CM, J. Macromol. Sci.-Phys., B28, 1409 (1990)

[12] Lovoy AG, Cheng MF, Carduner KR, Rokose MJ, Polym. Bull., 21, 327 (1989)

[13] Miller RL, Brooks RV, Briddell JE, Polym. Eng. Sci., 30, 59 (1990)

[14] Aharoni SM, J. Macromol. Sci.-Phys., B22, 813 (1983)

[15] Wang L, Huang Z, Hong T, J. Macromol. Sci.-Phys., B29, 155 (1990)

[16] Wang L, Lu M, Yang X, J. Macromol. Sci.-Phys., B29, 171 (1990)

[17] Boerio FJ, Bahl SK, J. Polym. Sci. B: Polym. Phys., 14, 1029 (1976)

[18] Devaux J, Godard P, Mercier JP, J. Polym. Sci. B: Polym. Phys., 20, 1881 (1982)

[19] Kessler SL, "Instrumented Impact Testing of Plastics of and Composite Materials," pp. 163-186 (1987)