선형 및 분지화된 폴리카보네이트 블렌ㄷ의 기계적 성질과 유동특성

류민영; 이재식; 배유리; Min-Young Lyu; Jae Sik Lee; Youlee Pae

Polymer(Korea), Vol.24, No.1, 38-47, January, 2000

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선형 및 분지화된 폴리카보네이트 블렌ㄷ의 기계적 성질과 유동특성

Flow and Mechanical Properties of Linear and Branched Polycarbonates Blends

류민영^†, 이재식, 배유리¹

삼양그룹 중앙연구소
¹한국화학연구소

Min-Young Lyu^†, Jae Sik Lee, and Youlee Pae¹

Samyang Central R&D Center, 63-2 Hwaam-Dong, Yusung-Gu, Taejeon 305-343, Korea
¹Korea Research Insitute of Chemical Technology, 100 Jang-Dong, Yusung-Gu, Taejeon 305-343, Korea

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초록

본 논문은 선형 폴리카보네이트와 분지화된 폴리카보네이트를 블렌드한 시스템에 대해서 연구하였다. 여러 가지 조성으로 두 성분을 블렌드하여 각 조성에 해해서 상요성, 기계적 성질 그리고 유동특성을 조사하였다. 본 블렌드 시스템에서 상분리는 관찰되지 않았고 상용성도 있었다. 기계적 성질은 블렌드의 각 조성에 대해서 인장강도, 굽힘강도, 그리고 충격강도 등을 측정하여 검토하였으며, 흐름특성 역시 블렌드의 각 조성에 대해 용융점도, 저장탄성률 및 손실탄성률을 여러 온도에서 측정하여 검토하였다. 그리고 용융점도의 분자량에 대한 의존성을 조사하였다. 선형 폴리카보네이트와 분지화된 폴리카보네이트의 조성에 따라 기계적 물성은 거의 변화가 없었으나. 흐름특성은 큰 변화가 있었다. 본 블렌드 시스템에서 분지화된 폴리카보네이트 함량이 증가할수록 점도의 분자량에 대한 의존성이 컸으며, shear thinning현상은 두드러지게 나타났다. 따라서 재료의 기계적 물성의 변화없이 흐름특성이 다른 블렌드 시스템을 설계할 수 있다.

A study of linear and branched polycarbonates blend system is presented. Flow and mechanical properties, and miscibility were studied for the blends of various compositions. No phase separations were observed in the blend systems. The mechanical properties of blends were examined through tensile strength, tensile modulus, flexural strength, flexural modulus and impact strength. Melt viscosity, storage and loss moduli of the blends with various compositions were examined at various temperatures, The dependence of viscosity on molecular weight was also presinted. Flow properties of the blends showed significant variations however, mechanical properties were relatively independent of the compositions. As the content of branched polycarbonate increased, the dependence of viscosity on molecular weight and shear thinning behavior became more marked. Therefore the blend systems which have same mechanical properites but different flow properties can be obtained.

[References]

Christopher WF, Fox DW, "Reinhold Plastics Applications Series-Polycarboante," Reinhold Publishing, NY, 1962 (1962)
Osswald TA, Menges G, "Material Science Polymers for Engineers," Hanser, NY, 1995 (1995)
Kuze S, Kusuyama H, Shinohara M, Okamoto M, U.S. Patent, 5,283,314 (1994)
Kim WG, Suh YW, Kim DM, KR Patent, 180,827 (1998)
Fox TG, Flory PJ, J. Am. Chem. Soc., 70, 2384 (1948)
Fox TG, Flory PJ, J. Appl. Phys., 21, 581 (1950)
Fox TG, Flory PJ, J. Phys. Chem., 55, 221 (1951)
White JL, "Principles of Polymer Engineering Rheology," John Wiley & Sons, NY, 1990 (1990)
Schaefgen JR, Flory PJ, J. Am. Chem. Soc., 70, 2709 (1948)
Masuda T, Ohta Y, Onogi S, Macromolecules, 4, 763 (1971)
Masuda T, Saito Y, Ohta Y, Onogi S, J. Soc. Mater. Sci. Jpn., 22, 438 (1973)
Folt VM, Rubber Chem. Technol., 42, 1294 (1969)
Kraus G, Gruver JT, J. Polym. Sci. A-Polym. Chem., 3, 102 (1965)
Suarez H, Barlow JW, Paul DR, J. Appl. Polym. Sci., 29, 3253 (1984)
Greco R, Astarita MF, Dong L, Sorrentino A, Adv. Polym. Technol., 13(4), 259 (1994)
Greco R, Sorrentino A, Adv. Polym. Technol., 13(4), 249 (1994)
Liang Z, Williams HL, J. Appl. Polym. Sci., 43, 379 (1991)
Huang JC, Shen HF, Chu YT, Adv. Polym. Technol., 13(1), 49 (1994)
Mascian L, Valenza A, Adv. Polym. Technol., 14(4), 327 (1995)
Kim WN, Park CE, Burns CM, J. Appl. Polym. Sci., 49, 1003 (1993)
Kim WN, Burns CM, J. Appl. Polym. Sci., 41, 1575 (1990)
Gupta AK, Srinivasan KR, J. Appl. Polym. Sci., 47, 167 (1993)
Hashemi S, Polym. Eng. Sci., 37(5), 912 (1997)
Hansen HG, Jansma JB, ACS Polym. Prepr., 20, 157 (1979)
Pham HT, U.S. Patent, 5,508,359 (1996)
Bird R, Armstrong RC, Hassager O, "Dynamics of Polymeric Liquids," vol. 1, John Wiley & Sons, NY, 1987 (1987)
Macosko CW, "Rheology: Principles, Measurements and Applications," Wiley-VCH, NY, 1994 (1994)

[Referenced By]

[1] Christopher WF, Fox DW, "Reinhold Plastics Applications Series-Polycarboante," Reinhold Publishing, NY, 1962 (1962)

[2] Osswald TA, Menges G, "Material Science Polymers for Engineers," Hanser, NY, 1995 (1995)

[3] Kuze S, Kusuyama H, Shinohara M, Okamoto M, U.S. Patent, 5,283,314 (1994)

[4] Kim WG, Suh YW, Kim DM, KR Patent, 180,827 (1998)

[5] Fox TG, Flory PJ, J. Am. Chem. Soc., 70, 2384 (1948)

[6] Fox TG, Flory PJ, J. Appl. Phys., 21, 581 (1950)

[7] Fox TG, Flory PJ, J. Phys. Chem., 55, 221 (1951)

[8] White JL, "Principles of Polymer Engineering Rheology," John Wiley & Sons, NY, 1990 (1990)

[9] Schaefgen JR, Flory PJ, J. Am. Chem. Soc., 70, 2709 (1948)

[10] Masuda T, Ohta Y, Onogi S, Macromolecules, 4, 763 (1971)

[11] Masuda T, Saito Y, Ohta Y, Onogi S, J. Soc. Mater. Sci. Jpn., 22, 438 (1973)

[12] Folt VM, Rubber Chem. Technol., 42, 1294 (1969)

[13] Kraus G, Gruver JT, J. Polym. Sci. A-Polym. Chem., 3, 102 (1965)

[14] Suarez H, Barlow JW, Paul DR, J. Appl. Polym. Sci., 29, 3253 (1984)

[15] Greco R, Astarita MF, Dong L, Sorrentino A, Adv. Polym. Technol., 13(4), 259 (1994)

[16] Greco R, Sorrentino A, Adv. Polym. Technol., 13(4), 249 (1994)

[17] Liang Z, Williams HL, J. Appl. Polym. Sci., 43, 379 (1991)

[18] Huang JC, Shen HF, Chu YT, Adv. Polym. Technol., 13(1), 49 (1994)

[19] Mascian L, Valenza A, Adv. Polym. Technol., 14(4), 327 (1995)

[20] Kim WN, Park CE, Burns CM, J. Appl. Polym. Sci., 49, 1003 (1993)

[21] Kim WN, Burns CM, J. Appl. Polym. Sci., 41, 1575 (1990)

[22] Gupta AK, Srinivasan KR, J. Appl. Polym. Sci., 47, 167 (1993)

[23] Hashemi S, Polym. Eng. Sci., 37(5), 912 (1997)

[24] Hansen HG, Jansma JB, ACS Polym. Prepr., 20, 157 (1979)

[25] Pham HT, U.S. Patent, 5,508,359 (1996)

[26] Bird R, Armstrong RC, Hassager O, "Dynamics of Polymeric Liquids," vol. 1, John Wiley & Sons, NY, 1987 (1987)

[27] Macosko CW, "Rheology: Principles, Measurements and Applications," Wiley-VCH, NY, 1994 (1994)