SBR과 폴리에스테르 코드의 접착에 탄닌 접착제의 응용

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Polymer(Korea), Vol.20, No.2, 271-279, March, 1996

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SBR과 폴리에스테르 코드의 접착에 탄닌 접착제의 응용

Application of Tannin Based Adhesive for Bonding SBR to Polyester Cord

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초록

리소시놀-포름알데히드-라텍스(RFL) 접착제의 레소시놀 대체 물질로서 탄닌을 사용하여 접착제를 합성한 후 SBR과 폴리에스테르간의 접착을 시도하였다. 탄닌이 약 70% 이상 대체 되거나, 접착제에서 라텍스/수지의 비가 3 이하에서 접착제의 점도는 크게 증가하였다. 탄닌이 약 60% 대체된 조성에서 접착제 자체가 가장 강인한 물성을 나타냈고, 타이어코드 접착실험 (TCAT)으로부터 SBR과 폴리에스테르간의 접착력을 평가한 결과 가장 우수한 접착력을 나타냈다. 또한 TCAT에 의한 파단면의 분석결과 폴리에스테르 코드와 접착제의 계면에서 파단이 일어난 것으로 보아 SBR과 폴리에스테르간의 접착력에 영향을 끼치는 주된 접착기구는 접착제 자체의 강인성이었다.

The adhesion between SBR and polyester was done by using tannin as replacement for resorcinol in Resorcinol-Formaldehyde-Latex (RFL) adheslve. The viscosity of adhesive solution was greatly increased by the about 70% replacement of tannin for resorcinol and at the below 3 of latex/resin ratio. From the tensile test of adhesive itself it was found that the composition of 60% replacement of tannin for resorcinol showed the highest thoughness among the all compositions. Also, the maximum adhesion strength between SBR and polyester could be obtained by using the adhesive containing that composition. The failure node by the TCAT (Tire Cord Adhesion Test) was mainly interfacial failure between polyester and adhesive. The results indicated that the major factor affecting adhesion between SBR and polyester was the toughness of adhesive itself.

Keywords:RFL;tannin;pull-out force;failure locus;toughness

[References]

Charch WH, Maney DB, U.S. Patent, 2,128,229 (1938)
Moult RH, "Handbook of Adhesives," I. Skeist Ed., p. 661-688, Van Nostrand Reinhold, NY (1977)
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[1] Charch WH, Maney DB, U.S. Patent, 2,128,229 (1938)

[2] Moult RH, "Handbook of Adhesives," I. Skeist Ed., p. 661-688, Van Nostrand Reinhold, NY (1977)

[3] Iyenger Y, J. Appl. Polym. Sci., 22, 801 (1978)

[4] Reeves LN, Rubber World, 132, 764 (1955)

[5] Hemingway RW, Kreibich RE, J. Appl. Polym. Sci.: Appl. Polym. Symp., 40, 79 (1984)

[6] McClary EB, U.S. Patent, 3,775,150 (1973)

[7] Ingram LB, Rubber Plast. News, 12, 56 (1981)

[8] Chung KH, Hamed GR, "Chemistry and Significance of Condensed Tannin," p. 479-492, Plenum Press, NY (1989)

[9] Kriebich RE, Hemingway RW, Forest Prod. J., 35, 23 (1985)

[10] Kreibich RE, Hemingway RW, Forest Prod. J., 37, 43 (1987)

[11] Doyle GM, I.R.I. Transact., 35, 177 (1960)

[12] Chung KH, J. Korean Inst. Rubber Ind., 29, 419 (1994)

[13] Hamed GR, J. Adhes., 16, 31 (1981)

[14] Fielding-Russel GS, Livingston DI, Nicholson DW, Rubber Chem. Technol., 53, 950 (1980)

[15] Takeyama T, Matsui J, Rubber Chem. Technol., 42, 159 (1969)