임팩트PP/EPM/EPDM 삼성분 불렌드의 유변학 및 기계적 물성

황기원; 안정호; 김중현

Polymer(Korea), Vol.21, No.1, 36-45, January, 1997

Export Citation

임팩트PP/EPM/EPDM 삼성분 불렌드의 유변학 및 기계적 물성

The Rheological and Mechanical Properties of Impact-PP/EPM/EPDM Ternary Blends

황기원, 안정호, 김중현

초록

본 연구에서는 임팩트폴리프로필렌(임팩트PP)/EPDM (ethylene propylene diene monomer) 이성분계 블렌드, 임팩트PP/EPM (ethylene propylene monomer)/EPDM 삼성분계 블렌드를 각각 제조하고 이의 유변학적 성질과 기계적 성질을 살펴보고 서로 비교하였다. 본 연구에서는 2가지 종류의 서로 다른 분자량을 지닌 EPM, 즉 EPM_α (KEP020P)와 EPM_β(KEP070P)를 사용하였다. 살펴본 기계적 물성으로는 인장강도, 신율, 굴곡 탄성률 및 충격 강도 등이 있으며 impact 시편의 파단면을 관찰하기 위해 SEM을 사용하였다. 임팩트PP/EPDM과 PP/EPM_α/EPDM의 기계적 물성을 비교하였을 때 임팩트 PP/EPDM이 전반적인 물성에서 우수하였으며, 임팩트PP/EPM_α(혹은 EPM_β)/EPDM 삼성분계 블렌드에서는 임팩트PP/EPM_β/EPDM이 인장강도, 신율, 충격 강도에서 보다 나은 물성을 나타내었다.

In this article, the rheological and mechanical properties of EPDM/impact-polypropylene(impact-PP) binary blends and impact-PP/EPM/EPDM ternary blends were discussed. Two kinds of EPM having different M. W., EPM_β, were used. The mechanical properties such as tensile strength, elongation, flexural modulus and Izod impact were evaluation. The mechanical properties for the impact-PP/EPDM binary blends were found to be generally better than those for impact-PP/EPM_αβ/EPDM ternary blends. In the comparison between impact-PP/EPM_α/EPDM and impact-PP/EPM_β/EPDM were better than those for impact-PP/EPM_α/EPDM suggesting the properties of rubbery component are domination factor in determining binary or tertiary blends containing impact-PP.

Keywords:impact PP;ternary blends;morphology;mechanical properties

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[2] "Modern Plastics Encyclopedia 90," McGraw-Hill Publication, Mid-Oct, p. 82 ~ 84 (1992)

[3] Kim HJ, "Polypropylere Resin," p. 62, Daekwang Pub. (1987)

[4] "Advances in Polyolefins," eds. by R.B. Seymour and T. Cheng, Plenum Press, New York (1987)

[5] Prentice P, Williams JG, Plast. Rubber Proc. Appl., 2, 27 (1982)

[6] Prabhu P, Schindler A, Teil MH, Gilbert RD, J. Polym. Sci., 19, 523 (1981)

[7] Kim WT, Nho YC, Polym.(Korea), 8(3), 176 (1984)

[8] Danesi S, Porter RS, Polymer, 19, 448 (1978)

[9] Dao KC, Polymer, 25, 1527 (1984)

[10] Gateski MKA, Martuscelli E, "Polymer Blends," eds. by D.R. Paul and S. Newman, p. 24 ~ 38, Academic Press, New York (1984)

[11] Stehling FLC, J. Appl. Polym. Sci., 26, 2693 (1981)

[12] Bartczak Z, Gleski A, Martuscelli E, Janik H, Polymer, 26, 1843 (1985)

[13] Speri WM, Polym. Eng. Sci., 9, 668 (1985)

[14] Ha CS, Res. Report. Coll. Eng. PNU., 25, 203 (1990)

[15] Martuscelli E, Polym. Eng. Sci., 24, 563 (1984)

[16] Ito J, Mitani K, Mizutant Y, J. Appl. Polym. Sci., 29, 75 (1984)

[17] Cran AY, Patel R, Rubber Chem. Technol., 53, 141 (1980)

[18] D'Orazio L, Mancarella C, Martuscelli E, Sticotti G, J. Mater. Sci., 26, 4033 (1991)

[19] D'Orazio L, Mancarella C, Martuscelli E, Sticotti G, Polymer, 34, 3671 (1993)