불포화 폴리에스테르 수지의 강인성에 비닐계 단량체가 미치는 효과

이동호; 정용균; 최관영; 김호겸; 민경은; 서관호; 임정철; 전일련; Dong-ho Lee; Yong-kyun Jung; Gwan-young Choi; Ho-gyum Kim; Kyung-eun Min; Kwan-ho Seo; Jeong-cheol Lim; Il-ryun Jun

Polymer(Korea), Vol.25, No.3, 375-384, May, 2001

Export Citation

불포화 폴리에스테르 수지의 강인성에 비닐계 단량체가 미치는 효과

Effect of Vinylic Monomers on Toughness of Unsaturated Polyester

이동호, 정용균, 최관영, 김호겸, 민경은^†, 서관호, 임정철¹, 전일련²

경북대학교 고분자공학과
¹영남 이공대학
²경일대학교 공업화학과

Dong-ho Lee, Yong-kyun Jung, Gwan-young Choi, Ho-gyum Kim, Kyung-eun Min^†, Kwan-ho Seo, Jeong-cheol Lim¹, and Il-ryun Jun²

Department of Polymer Science, Kyungpook National University, Taegu, Korea
¹Yeungnam College of Science & Technology, Taegu, Korea
²Department of Industrial Chemistry, Kyung-il University, Kyungsan, Korea

E-mail:

초록

불포화 폴리에스테르(unsaturated polyester : UP) 의 희석제로 많이 사용되는 스티렌 단량체(SM) 대신에 단일 중합체의 유리전이온도가 낮은 비닐 아세테이트(VAc), 메틸 아크릴레이트(MA)를 SM과 혼합하여 사용하였을 때 혼합조성에 따른 UP의 기계적 물성 변화를 조사하였다. SM/MA 혼합계는 MA 함량 증가에 따라 전체적으로 강인성의 향상이 나타난 반면, SM/VAc 혼합계의 경우에는 VAc 단량체의 함량 증가에 따른 강인성의 향상을 기대하기가 힘든 것으로 나타났다. 이러한 형상은 전체 계의 유리전이온도의 저하 효과와 상분리에 의한 응력 완화 효과에 미치는 각 단량체의 영향이 서로 다르기 때문인 것으로 해석되었다.

We investigated the change of mechanical properties of UP using mixture of SM with VAc or MA that have low glass transition temperature when polymerized instead of SM only for diluents of UP. In case of using mixture of SM/MA, it was elucidated that the toughness of UP was more improved than using SM only. But in case of SM/VAc, it was observed that the content of mixture could not affect on toughness. It was concluded that these results are caused by the effect of each diluents mixtures on stress-relaxation due to phase separation and on decrease glass transition temperature of UP is suite different from each other.

Keywords:Unsaturated Polyester;Reactive Monomer;Toughness;Gelation Time;Copolymerization

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[1] Fisher RF, J. Polym. Sci., 44, 155 (1960)

[2] Huang YJ, Lu TJ, Hwu W, Polym. Eng. Sci., 33, 1 (1991)

[3] Modern Plastics International, p. 26, July (1993)

[4] Nam JD, Ahn KJ, Polym. Sci. Technol., 6(5), 459 (1995)

[5] Henry Brinkman W, SPI. RP. Div. Preprint, 23th. Sec., 19-D (1968)

[6] Sanchez EMS, Zavaglia CAC, Felisberti MI, Polymer, 41(2), 765 (2000)

[7] Kunz-Douglass S, Beaumont PWR, Ashby MF, J. Mater. Sci., 15, 1109 (1980)

[8] Sayer JA, Kunz SC, Assink RA, ACS Div. Polym. Mater. Sci. Eng., 49, 442 (1983)

[9] Siebert AR, "In Rubber Modified Thermoset Resin", eds. by C.K. Riew and J.K. Gillham, Advances in Chemistry series No. 208, p. 179, American Chemical Society, Washington, DC (1984)

[10] Ma CCM, Gong YG, Chen CH, Hsieh KF, Chern YC, ANTEC, 1484 (1992)

[11] Xu MX, Liu WG, Polym. Int., 38, 205 (1995)

[12] Huang YJ, Chen LD, Polymer, 39(26), 7049 (1998)

[13] Parker EE, Ind. Eng. Chem., 46(8), 1615 (1954)

[14] Parker EE, Ind. Eng. Chem., 58(4), 53 (1966)

[15] Deanin PD, Spe. Journal, p. 30, July (1976)

[16] Oleesky S, "Handbook of Reinforced Plastics", p. 150, Reinhold Pubishing Corp., U.S.A. (1964)

[17] Stetzier SS, Smnllin CF, Anal. Chem., 34, 195 (1962)

[18] Hue YS, "Polyester Resin", p. 62, Daekwang Publishing Co., Korea (1997)

[19] Feuer SS, Brockstahlens TE, Browns CA, Ind. Eng. Chem., 46(8), 1643 (1954)

[20] Curtis LG, Edwards DL, Simons RM, Trent PJ, SPI. Tech. Conf., 19th, 12-B (1964)

[21] Huang YJ, Chen CJ, J. Appl. Sci., 45, 1573 (1992)

[22] Liu SB, Yu TL, Macromol. Chem. Phys., 196, 1307 (1995)

[23] de la Caba K, Guerrero P, Eceiza A, Mondragon I, Polymer, 37(2), 275 (1996)

[24] Zheng A, Ota T, Sato T, Tanaka H, Sasai K, Zhou R, J. Macromol. Sci.-Chem., A25(1), 1 (1988)

[25] Zhang Z, Zhu S, Polymer, 41(10), 3861 (2000)