염화비닐리덴을 혼합한 비닐에스테르 수지의 크롬산 용액에 대한 열화 특성

최상구; 이진만; 서원동

Polymer(Korea), Vol.18, No.4, 632-640, July, 1994

Export Citation

염화비닐리덴을 혼합한 비닐에스테르 수지의 크롬산 용액에 대한 열화 특성

Degradation of Vinylidene Chloride-Mixed Vinylester Resin in Chromic Acid Solution

최상구, 이진만, 서원동

초록

비닐에스테천수지에 반응성 이중결합과 염소(chlorine)를 포함하고 있는 염화비닐리덴(vinylidene chloride)을 0∼30phr(wt.)로 첨가하여 20% 크롬산 용액에 대한 열화성직을 조사하였다. 침지 초기에는 염화비닐리덴을 첨가한 것이 높은 흡수율을 보여 주었지만 점차 무첨가의 것이 더 높은 흡수율을 보여 주었으며, 열화의 형태는 무첨가의 것은 크랙의 성장속도가 빠르게 나타났고 염화비닐리덴을 첨가한 것은 수포의 성장속도가 빠르게 나타났다. 그리고 초기 굴곡강도와 내약품성의 유지면에서 볼 때 염화비닐리덴을 10phr 이하로 사용하는 것이 효과적이었다.

Vinylester resins were modified with vinylidene chloride in the range of 0∼30phr. Degradation behaviour of modified resins was examined under the condition of 20% chromic acid solution. Modified resins showed higher water absorption ratio than non-modified vinylester resins in the initial periods of immersion, but became lower after 90 days. Modified resins showed raped blister-growth in the course of degradation, on the other hand, non-modified resins showed rapid crack-growth. Blendings with less than 10 phr of vinylidene chloride were more effective in the view of maintenance of the flexural strength and chemical resistant properties.

[References]

Dow Chemical Co. Technical Bull. (1987)
U.S. Patent, 3,301,743
Japan Patent, 53-140394
U.S. Patent, 4,163,113
Ashbee HG, Proc. Roy. Soc., A300, 415 (1967)
Springer GS, J. Compos. Mater., 14, 213 (1980)
Menges G, Putz D, Kunststoffe, 66, 341 (1976)
Allen RC, Polym. Eng. Sci., 19, 329 (1979)
Dow Chemical Co. Technical Bull, "Review on Vinylester Resin," (1990)
Brydson JA, "Plastics Materials," Butterworth Science, 281 (1990)
Hillman SL, Palmer M, Davis JH, Plast. Eng., 35, 33 (1979)
Schmitt JA, J. Appl. Polym. Sci., 12, 503 (1968)
Charles EH, "Radiation Curing of Polymeric Materials," 284 (1989)
Liwen L, Fan G, Proc. Int. Symp. on FRP/CM, 2G, 5 (1988)
Lee KS, "Analytical Chemistry," p. 106, Dong Meong Press (Korea) (1992)
Pritchard G, Swampillai GJ, Proc. Annu. Conf., Reinf. Plast. /Compos. Inst. Soc. Plast. Ind., 34, 1 (1979)
Apicella A, Migliaresi C, Compos.(Guildford, U.K.), 14, 387 (1983)

[1] Dow Chemical Co. Technical Bull. (1987)

[2] U.S. Patent, 3,301,743

[3] Japan Patent, 53-140394

[4] U.S. Patent, 4,163,113

[5] Ashbee HG, Proc. Roy. Soc., A300, 415 (1967)

[6] Springer GS, J. Compos. Mater., 14, 213 (1980)

[7] Menges G, Putz D, Kunststoffe, 66, 341 (1976)

[8] Allen RC, Polym. Eng. Sci., 19, 329 (1979)

[9] Dow Chemical Co. Technical Bull, "Review on Vinylester Resin," (1990)

[10] Brydson JA, "Plastics Materials," Butterworth Science, 281 (1990)

[11] Hillman SL, Palmer M, Davis JH, Plast. Eng., 35, 33 (1979)

[12] Schmitt JA, J. Appl. Polym. Sci., 12, 503 (1968)

[13] Charles EH, "Radiation Curing of Polymeric Materials," 284 (1989)

[14] Liwen L, Fan G, Proc. Int. Symp. on FRP/CM, 2G, 5 (1988)

[15] Lee KS, "Analytical Chemistry," p. 106, Dong Meong Press (Korea) (1992)

[16] Pritchard G, Swampillai GJ, Proc. Annu. Conf., Reinf. Plast. /Compos. Inst. Soc. Plast. Ind., 34, 1 (1979)

[17] Apicella A, Migliaresi C, Compos.(Guildford, U.K.), 14, 387 (1983)