전단력 하에서 유도된 광민감군이 첨가된 PE 필름의 광분해: I. LDPE쉬트의 광분해

신부영; 신용섭

Polymer(Korea), Vol.19, No.2, 247-253, March, 1995

Export Citation

전단력 하에서 유도된 광민감군이 첨가된 PE 필름의 광분해: I. LDPE쉬트의 광분해

Photodegradation of PE Film Containing Mechanically Induced Photosensitive Groups : I. Photodegradation of LDPE Sheet

신부영, 신용섭

초록

고분자 가공 공정 중에 발생하는 기계적 혹은 열적 산화 과정에서 발생하는 광민감군을 이용하여 광분해성 master batch(M/B)를 질소, 공기, 산소 분위기 하에서 제조하고 이들 M/B 20중량 %를 첨가한 LDPE sheet를 압축성형법으로 제조하였다. 각 쉬트는 수은등 자외선 조사기를 이용하여 광분해 성능을 시험하였다. 산소 분위기 M/B를 첨가한 광분해성 쉬트는 자외선 조사 120시간 이내에 처음 파단신도의 5% 이내로 감소하고 매우 취약한 상태로 되었으나, 순수 LDPE 쉬트는 240시간 후에도 초기 값의 75% 정도를 유지하였다.

Photodegradable master batch was prepared by using mechanical and thermal oxidation process. Three different master batchs were prepared by melt blending under nitrogen, air and oxygen environments. Low density polyethylene (LDPE) sheets containing 20 wt.% photodegradable M/Bs were prepared by compression molding and the photodegradation was observed under a mercury-vapor lamp. The sheet containing M/B prepared under oxygen atmosphere retained only 5% of its initial elongation at break after 120hr irradiation, while M/B free LDPE sheet still retained about 75% of initial value after 240hr irradiation.

Keywords:photosensitive groups;photodegradation

[References]

Hocking PJ, J. Macromol. Sci.-Rev. Macromol. Chem. Phys., C32(1), 36 (1992)
Lee YH, Polym. Sci. Technol., 2(5), 319 (1991)
Kim YH, Petrochemistry, Apr., 9 (1993)
Guillet JE, "Polymers and Ecological Problems," Eds. B. Baum and R.A. White, p. 1-25, Plenum Press, New York (1973)
Baum B, White RA, "Polymers and Ecological Problems," Eds. B. Baum and R.A. White, p. 45-60, Plenum Press, New York (1973)
Mellor DC, Moir AB, Scott G, Eur. Polym. J., 9, 219 (1973)
Yeun JH, Plast. Sci.(Korea), Sep., 6 (1990)
Winslow FH, Pure Appl. Chem., 49, 495 (1977)
Gooden R, Hellman MY, Hutton RS, Winslow FH, Macromolecules, 17(12), 2830 (1984)
Pozzi V, Silvers AE, Giuttre L, J. Appl. Polym. Sci., 19, 923 (1975)
Schnable W, "Polymer Degradation," Chap. 2 and 3, Hanser International (1981)
Scott G, Polym. Degrad. Stabil., 29, 135 (1990)
"Handbook of Polymer Degradation," Eds. S.H. Hamid, M.B. Amin, and A.G. Maadhah, p. 127, Marcel Dekker Inc., New York (1992)
Albertsson AC, Barenstedt C, Karlsson S, Polym. Degrad. Stabil., 37, 163 (1992)
Scott G, "Polymers and Ecological Problems," Eds. B. Baum and R.A. Whit, p. 27-43, Plenum Press, New York (1973)
Chung IH, Shin BY, Patent, No. 93-32342 (1993)
Solomon DH, Hawthorne DG, "Chemistry of Pigments and Fillers," John Wiley & Sons, Inc., New York (1983)
Iring M, Tudos F, Prog. Polym. Sci., 15, 217 (1990)
Rabek JF, "Photostabilization of Polymers," Elsevier Applied Science, London (1990)

[Referenced By]

[1] Hocking PJ, J. Macromol. Sci.-Rev. Macromol. Chem. Phys., C32(1), 36 (1992)

[2] Lee YH, Polym. Sci. Technol., 2(5), 319 (1991)

[3] Kim YH, Petrochemistry, Apr., 9 (1993)

[4] Guillet JE, "Polymers and Ecological Problems," Eds. B. Baum and R.A. White, p. 1-25, Plenum Press, New York (1973)

[5] Baum B, White RA, "Polymers and Ecological Problems," Eds. B. Baum and R.A. White, p. 45-60, Plenum Press, New York (1973)

[6] Mellor DC, Moir AB, Scott G, Eur. Polym. J., 9, 219 (1973)

[7] Yeun JH, Plast. Sci.(Korea), Sep., 6 (1990)

[8] Winslow FH, Pure Appl. Chem., 49, 495 (1977)

[9] Gooden R, Hellman MY, Hutton RS, Winslow FH, Macromolecules, 17(12), 2830 (1984)

[10] Pozzi V, Silvers AE, Giuttre L, J. Appl. Polym. Sci., 19, 923 (1975)

[11] Schnable W, "Polymer Degradation," Chap. 2 and 3, Hanser International (1981)

[12] Scott G, Polym. Degrad. Stabil., 29, 135 (1990)

[13] "Handbook of Polymer Degradation," Eds. S.H. Hamid, M.B. Amin, and A.G. Maadhah, p. 127, Marcel Dekker Inc., New York (1992)

[14] Albertsson AC, Barenstedt C, Karlsson S, Polym. Degrad. Stabil., 37, 163 (1992)

[15] Scott G, "Polymers and Ecological Problems," Eds. B. Baum and R.A. Whit, p. 27-43, Plenum Press, New York (1973)

[16] Chung IH, Shin BY, Patent, No. 93-32342 (1993)

[17] Solomon DH, Hawthorne DG, "Chemistry of Pigments and Fillers," John Wiley & Sons, Inc., New York (1983)

[18] Iring M, Tudos F, Prog. Polym. Sci., 15, 217 (1990)

[19] Rabek JF, "Photostabilization of Polymers," Elsevier Applied Science, London (1990)