기능화된 SBS Triblock 공중합체에 의한 나일론 강화에 관한 연구; 2.블렌드의 형태와 내충격성

서용석; 이재환; 황승상; 김광웅; 홍성일; 김형수

Polymer(Korea), Vol.16, No.4, 407-416, July, 1992

A Study on Nylon-6 Toughening by Poly(styrene-b-butadiene-b-styrene) Triblock Copolymer; 2. Impact Strength of the Blends

서용석, 이재환, 황승상, 김광웅, 홍성일, 김형수

초록

기능화 된 SBS 트리 블록 공중합체를 분산된 탄성체상으로 사용하여 강화된 나일론 6의 기계적 성질(충격강도)을 측정하였으며 분산상의 상태 및 크기를 주사 현미경과 투과 현미경을 사용하여 관찰하였다. 탄성체의 기능화는 maleic anhydride(MA)를 사용하여 용융상태에서 반응시켜 얻었다. 나일론의 내충격성은 기능화 된 고무의 첨가량에 따라, 또 입자 크기가 균일할수록 증가하였다. 투과 현미경의 사진으로부터 일부 고무입자내에 나일론의 재함유되어 있는 것을 발견하였으나 그 양은 비교적 적었고 첨가된 MA 가 증가할 수록 감소하였다. 강화된 나일론6의 기계적 성질 데이터로부터 분산된 고무입자의 성질과 나일론6의 강화기구와의 관계를 고찰하였다.

Toughened nylon 6 was made by blending nylon 6 with a modified elastomer(SBS triblock copolymer). Impact strengths of the nylons were measured. Scanning electron microscope(SEM) and transmission electron microscope(TEM) were used to investigate the size and state of the dispersed phase. Rubber was functionalized by mixing of maleic anhydride (MA) with melt state of nylon 6 in a twin screw extruder in the presence of an initiator. Impact strength of rubber toughened nylon 6 increased with the amount of added rubber, and with uniformity of dispersed phase. Subinclusion of nylon in the rubber phase was observed from TEM micrograph. The subinclusion amount was relatively small and decreased with MA amount. Toughening mechanism of the blends of nylon 6 and functionalized rubbers was reconsidered by analyzing the experimental data.

[References]

Seo YS, Lee JH, Hwang SS, Kim KU, Hong SI, Kim HS, Polym.(Korea), 16(4), 407 (1992)
Flexman EA, Polym. Eng. Sci., 19, 564 (1977)
Flexman EA, Kunststoffe, 3, 172 (1979)
Jang BZ, Uhlman DR, VanderSander JB, J. Appl. Polym. Sci., 29, 3409 (1984)
Wu S, Polym. Eng. Sci., 27(5), 335 (1987)
Wu S, J. Polym. Sci. B: Polym. Phys., 21, 699 (1983)
Boggreve RJM, Gaymans RJ, Polymer, 30, 67 (1989)
Boggreve RJM, Gaymans RJ, Polymer, 30, 71 (1989)
Boggreve RJM, Gaymans RJ, Polymer, 30, 78 (1989)
Donald AM, Kramer EJ, J. Mater. Sci., 17, 1765 (1982)
Gent AN, Chapter 10 in "Science of Technology of Rubber," (ed. F. Eirich) Academic Press (1978)
Wu S, Polymer, 26, 1855 (1988)
Ishikawa M, Chiba I, Polymer, 31, 1232 (1990)
Okamoto Y, Miyagi M, Kukugo M, Takahashi K, Macromolecules, 24, 5639 (1991)
Seo Y, Lee J, Hwang SS, Kim KU, Hong SI, Polymer, in press
Lawson O, Hergenrother WL, Matlock M, J. Appl. Polym. Sci., 39, 2331 (1990)
Bucknall CB, "Toughened Plastics," Appl. Sci. Publ., London (1977)

[Referenced By]

[1] Seo YS, Lee JH, Hwang SS, Kim KU, Hong SI, Kim HS, Polym.(Korea), 16(4), 407 (1992)

[2] Flexman EA, Polym. Eng. Sci., 19, 564 (1977)

[3] Flexman EA, Kunststoffe, 3, 172 (1979)

[4] Jang BZ, Uhlman DR, VanderSander JB, J. Appl. Polym. Sci., 29, 3409 (1984)

[5] Wu S, Polym. Eng. Sci., 27(5), 335 (1987)

[6] Wu S, J. Polym. Sci. B: Polym. Phys., 21, 699 (1983)

[7] Boggreve RJM, Gaymans RJ, Polymer, 30, 67 (1989)

[8] Boggreve RJM, Gaymans RJ, Polymer, 30, 71 (1989)

[9] Boggreve RJM, Gaymans RJ, Polymer, 30, 78 (1989)

[10] Donald AM, Kramer EJ, J. Mater. Sci., 17, 1765 (1982)

[11] Gent AN, Chapter 10 in "Science of Technology of Rubber," (ed. F. Eirich) Academic Press (1978)

[12] Wu S, Polymer, 26, 1855 (1988)

[13] Ishikawa M, Chiba I, Polymer, 31, 1232 (1990)

[14] Okamoto Y, Miyagi M, Kukugo M, Takahashi K, Macromolecules, 24, 5639 (1991)

[15] Seo Y, Lee J, Hwang SS, Kim KU, Hong SI, Polymer, in press

[16] Lawson O, Hergenrother WL, Matlock M, J. Appl. Polym. Sci., 39, 2331 (1990)

[17] Bucknall CB, "Toughened Plastics," Appl. Sci. Publ., London (1977)