Polycarbonate/Polyamide 6 블랜드의 상용성에 관한 연구

박태욱; 이치규; 허정림

Journal of the Korean Industrial and Engineering Chemistry, Vol.4, No.3, 601-615, September, 1993

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Polycarbonate/Polyamide 6 블랜드의 상용성에 관한 연구

A Study on the Compatibility of Polycarbonate/Polyamide 6 Blends

박태욱, 이치규, 허정림

초록

PC/PA6 블랜드를 세 가지 서로 다른 방법으로 블랜드한 후 이들의 상용성에 관하여 조사하였다. DSC에 의한 열적 성질 측정결과, Tg는 전 조성에 있어 각각의 온도부근에서 나타나며, 융점과 결정화온도는 큰 변화가 없었다. SEM관찰 역시 PC, PA6 블랜드는 각각 5%의 아주 낮은 조성에서부터 상분리가 확인되었다. 또한 실험적으로 측정된 Tg 값을 Flory- Huggins식에 도입하여 polymer-polymer interaction parameter(χ₁₂)값을 계산한 결과, solution casting, solution precipitation, 압출블랜드의 경우 0.0381, 0.0411, 0.0418로 각각 계산되었으며, χ₁₂의 임계값 (χ₁₂)_c가 0.0271로 계산됨에 따라 결국 PC/PA6 블랜드는 전 조성에 걸쳐 상용성이 부족하였다.

A series of polycarbonate(PC)/polyamide 6(PA6) blends were prepared by three different blending methods to investigate their compatibility. From the DSC results, all of these blends have two Tg's in their own Tg regions, and there was no significant depression of the melting point and the crystallization temperature of PA6. With respect to the microstructure of the blends by SEM, the phase separation occurred at very low blend compositions, PC/PA6=95/5 and 5/95, already. In addition, a method is proposed to determine the Flory-Huggins polymer-polymer interaction parameter(χ₁₂) in polymer blend systems by using the experimentally determined Tg's. The values of χ₁₂ obtained were 0.0381, 0.0411, 0.0418, for solution casting, solution precipitation, and extrusion blending methods, respectively. These values were higher than the critical value of χ₁₂,((χ₁₂)_c, 0.0271). Therefore it was concluded that the PC/PA6 blend system have little compatibility.

[References]

Paul DR, "Polymer Blends," Academic, New York, Vol. 1 (1978)
Walsh DJ, "Comprehensive Polymer Science," Pergamon, New York, Vol. 2, p. 135 (1989)
Kim WN, Burns CM, J. Appl. Polym. Sci., 32, 2989 (1986)
Kim WN, Burns CM, J. Appl. Polym. Sci., 34, 945 (1987)
Kim WN, Burns CM, Macromolecules, 20, 1876 (1987)
Kim WN, Ph.D. Thesis, University of Waterloo, Waterloo, Ontario (1987)
Schmitt RL, Gardella JA, Salvati L, Macromolecules, 19, 648 (1986)
Olabisi O, Robeson LM, Shaw MT, "Polymer-Polymer Miscibility," Academic, New York, Chap. 2 (1979)
Devaux J, Godard P, Mercier JP, J. Polym. Sci. B: Polym. Phys., 20, 1881 (1982)
Wang LH, Huang Z, Hong T, J. Macromol. Sci.-Phys., B29, 155 (1990)
Kim WN, Burns CM, Polym. Eng. Sci., 28, 1115 (1988)
Shur YJ, Ranby B, J. Appl. Polym. Sci., 19, 1337 (1975)
Shultz AR, Young AL, J. Appl. Polym. Sci., 28, 1677 (1983)
Reimschuessel HK, J. Polym. Sci. Macromol. Rev., 12, 65 (1977)
Illing G, Angew. Makromol. Chem., 95, 83 (1981)
Cimmino S, D'Orazio L, Greco R, Maglio G, Malinconico M, Mancarella C, Martuscelli E, Palumbo R, Ragosta G, Polym. Eng. Sci., 24, 48 (1984)
Seo SW, Jo WH, Ha WS, J. Appl. Polym. Sci., 29, 567 (1984)
Margolis JM, "Engineering Thermoplastics," Marcel Dekker, New York, p. 29 (1985)
Suarez H, Barlow JW, Paul DR, J. Appl. Polym. Sci., 29, 3253 (1984)
Keitz JD, Earlow JW, Paul DR, J. Appl. Polym. Sci., 29, 3131 (1984)
Rudin A, Brathwaite NE, Polym. Eng. Sci., 24, 1312 (1984)
Stefan D, Williams HL, J. Appl. Polym. Sci., 18, 1451 (1974)
Cruz CA, Barlow JW, Paul DR, Macromolecules, 12, 726 (1979)
Avakian RW, Allen RB, Polym. Eng. Sci., 25, 462 (1985)
Maresca LM, Shafer SJ, U.S. Patent, 4,788,249 (1988)
Hashimoto K, Nishiyama S, Eur. Patent, 333002 (1989)
Gattiglia E, Turturro A, Pedemonte E, J. Appl. Polym. Sci., 38, 1807 (1989)
Gattiglia E, Turturro A, Pedemonte E, J. Appl. Polym. Sci., 41, 1411 (1990)
Ahn TO, Lee SM, Jeong HM, Eur. Polym. J., 25, 95 (1989)
Nishi T, Wang TT, Macromolecules, 8, 909 (1975)
Wang TT, Nishi T, Macromolecules, 10, 421 (1977)
Martuscelli E, Riva F, Sellitti C, Silvestre C, Polymer, 26, 270 (1985)
Cheng SZD, J. Appl. Polym. Sci. Appl. Polym., 43, 315 (1989)
Ahn TO, Jeong HM, Polym.(Korea), 10(3), 245 (1986)
Scott RL, J. Chem. Phys., 17, 279 (1949)
Tompa H, Trans. Faraday Soc., 45, 1141 (1949)
Flory PJ, J. Chem. Phys., 10, 51 (1942)
Huggins ML, J. Am. Chem. Soc., 64, 1712 (1942)
Sanchez IC, J. Macromol. Sci.-Phys., B17, 565 (1980)
Koningsveld R, Kleintjens LA, Macromolecules, 18, 243 (1985)
Fox TG, Bull. Am. Phys. Soc., 1, 123 (1956)
Wood LA, J. Polym. Sci., 28, 319 (1958)
Couchman PR, Macromolecules, 11, 1156 (1978)
Olabisi O, Robeson LM, Shaw MT, "Polymer-Polymer Miscibility," Academic, New York, Chap. 5 (1979)

[1] Paul DR, "Polymer Blends," Academic, New York, Vol. 1 (1978)

[2] Walsh DJ, "Comprehensive Polymer Science," Pergamon, New York, Vol. 2, p. 135 (1989)

[3] Kim WN, Burns CM, J. Appl. Polym. Sci., 32, 2989 (1986)

[4] Kim WN, Burns CM, J. Appl. Polym. Sci., 34, 945 (1987)

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

[6] Kim WN, Ph.D. Thesis, University of Waterloo, Waterloo, Ontario (1987)

[7] Schmitt RL, Gardella JA, Salvati L, Macromolecules, 19, 648 (1986)

[8] Olabisi O, Robeson LM, Shaw MT, "Polymer-Polymer Miscibility," Academic, New York, Chap. 2 (1979)

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

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

[11] Kim WN, Burns CM, Polym. Eng. Sci., 28, 1115 (1988)

[12] Shur YJ, Ranby B, J. Appl. Polym. Sci., 19, 1337 (1975)

[13] Shultz AR, Young AL, J. Appl. Polym. Sci., 28, 1677 (1983)

[14] Reimschuessel HK, J. Polym. Sci. Macromol. Rev., 12, 65 (1977)

[15] Illing G, Angew. Makromol. Chem., 95, 83 (1981)

[16] Cimmino S, D'Orazio L, Greco R, Maglio G, Malinconico M, Mancarella C, Martuscelli E, Palumbo R, Ragosta G, Polym. Eng. Sci., 24, 48 (1984)

[17] Seo SW, Jo WH, Ha WS, J. Appl. Polym. Sci., 29, 567 (1984)

[18] Margolis JM, "Engineering Thermoplastics," Marcel Dekker, New York, p. 29 (1985)

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

[20] Keitz JD, Earlow JW, Paul DR, J. Appl. Polym. Sci., 29, 3131 (1984)

[21] Rudin A, Brathwaite NE, Polym. Eng. Sci., 24, 1312 (1984)

[22] Stefan D, Williams HL, J. Appl. Polym. Sci., 18, 1451 (1974)

[23] Cruz CA, Barlow JW, Paul DR, Macromolecules, 12, 726 (1979)

[24] Avakian RW, Allen RB, Polym. Eng. Sci., 25, 462 (1985)

[25] Maresca LM, Shafer SJ, U.S. Patent, 4,788,249 (1988)

[26] Hashimoto K, Nishiyama S, Eur. Patent, 333002 (1989)

[27] Gattiglia E, Turturro A, Pedemonte E, J. Appl. Polym. Sci., 38, 1807 (1989)

[28] Gattiglia E, Turturro A, Pedemonte E, J. Appl. Polym. Sci., 41, 1411 (1990)

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

[30] Nishi T, Wang TT, Macromolecules, 8, 909 (1975)

[31] Wang TT, Nishi T, Macromolecules, 10, 421 (1977)

[32] Martuscelli E, Riva F, Sellitti C, Silvestre C, Polymer, 26, 270 (1985)

[33] Cheng SZD, J. Appl. Polym. Sci. Appl. Polym., 43, 315 (1989)

[34] Ahn TO, Jeong HM, Polym.(Korea), 10(3), 245 (1986)

[35] Scott RL, J. Chem. Phys., 17, 279 (1949)

[36] Tompa H, Trans. Faraday Soc., 45, 1141 (1949)

[37] Flory PJ, J. Chem. Phys., 10, 51 (1942)

[38] Huggins ML, J. Am. Chem. Soc., 64, 1712 (1942)

[39] Sanchez IC, J. Macromol. Sci.-Phys., B17, 565 (1980)

[40] Koningsveld R, Kleintjens LA, Macromolecules, 18, 243 (1985)

[41] Fox TG, Bull. Am. Phys. Soc., 1, 123 (1956)

[42] Wood LA, J. Polym. Sci., 28, 319 (1958)

[43] Couchman PR, Macromolecules, 11, 1156 (1978)

[44] Olabisi O, Robeson LM, Shaw MT, "Polymer-Polymer Miscibility," Academic, New York, Chap. 5 (1979)