Abstract

In order to improve the adhesion of water-based adhesive, gemini type nonionic reactive surfactants were synthesized and applied to water-based adhesives. The surfactants were synthesized by using maleic acid and polyoxyethylene cetyl ether having different length of ethylene oxide and confirmed by FT-IR and $^1H-NMR$. Their appearance was light yellow wax. The cloud point of the compound was more than $78^{\circ}C$. The measured critical micelle concentration (c.m.c) was $1.0{\times}10^{-4}{\sim}7.0{\times}10^{-4}mol/L$ and surface tension at c.m.c was 25.9~32.0 mN/m. As the number of ethylene oxide increased, the emulsifying power was improved. The foaming height of each compound by Ross-Miles method was 1.4~4.5 cm. The synthesized surfactants was then used as an emulsifier in emulsion polymerization of water-based adhesives and its physical properties were evaluated. The solid contents of prepared adhesives was 59%. The average particle size and initial tackiness of the prepared adhesives were 164~297 nm and ball no. of 20~32, respectively. The peel strength was $1.8{\sim}2.1kg_f/mm$. The retention rate of adhesives viscosity was evaluated to 99% during 30 days. Therefore, synthesized gemini type nonionic reactive surfactants are expected to be applied as an emulsifier for the high adhesive force.

Keywords

• Water-based adhesive;
• Gemini type nonionic reactive surfactants;
• Critical micelle concentration;
• Solid contents;
• Peel strength

File

Download PDF

References

1. J. Oh, D. Lim, S. Kim, and H. Kim, Environmental friendly adhesives using natural materials, Adhesion and Interface, 9(3), 34-42 (2008).
2. J. Cheon, Technology trend of high functional adhesive material, Adhesion and Interface, 17(2), 72-76 (2016).
3. J. Han, D. Lee, and K. W. Cho, Adhesion science and technology, J. Ind. Eng. Chem., 7(4), 43-58 (2004).
4. H. J. Kim and D. J. Kim, Development trends of pressure sensitive adhesives, J. Ind. Eng. Chem., 5(5), 10-17 (2002).
5. H. Han, Adhesive characteristics of water-paint and silane adhesive mixture, J. Korea Acad. Ind. Coop. Soc., 16(8), 5721-5727 (2015). https://doi.org/10.5762/KAIS.2015.16.8.5721
6. W. Choi, H. Kim, K. Cho, D. Lee, and K. Min, The effect of chemical properties of comonomer on adhesion properties of acrylic pressure sensitive adhesives, Polymer (Korea), 31(5), 369-373 (2007).
7. N. Jeong, J. Park, and Y. Kang, Synthesis and characterization of polymerizable acryl's emulsifier to prepare green glue, J. Korean Oil Chem. Soc., 33(1), 51-57 (2016). https://doi.org/10.12925/jkocs.2016.33.1.51
8. S. Song, Y. Kim, and U. Cho, A study on synthesis of starch-acryl pressure sensitive adhesive by soap-free emulsion polymerization, Elastomers and Composites, 44(4), 429-435 (2009).
9. E. Choi, Y. Jeon, J. Lee, and N. Jeong, Synthesis and properties of gemini type's diethylene glycol dicarboxylates, J. Korean Oil Chem. Soc., 27(3), 257-265 (2010).
10. C. Kim, Y. Kim, J. Lee, K. Lee, and K. Koo, Effect of nonionic surfactant type on oil removal from soil, J. Korean Ind. Eng. Chem., 12(1), 88-93 (2001).
11. H.-K. Kwun, H. Hwang, J. Lee, and N. Jeong, Synthesis of reactive surfactant of polyoxyethylene derivatives, J. Ind. Sci. Technol. Inst. (Chungbuk National University, Korea), 21(2), 119-124 (2007).
12. X. Zhong, J. Guo, L. Feng, X. Xu, and D. Zhu, Cationic gemini surfactants based on adamantane: synthesis, surface activity and aggregation properties, Colloids Surf. A, 441, 572-580 (2014). https://doi.org/10.1016/j.colsurfa.2013.10.016
13. A. Berthod, S. Tomer, and J. G. Dorsey, Polyoxyethylene alkyl ether nonionic surfactants: Physicochemical properties and use for cholesterol determination in food, Talanta, 55, 69-83 (2001). https://doi.org/10.1016/S0039-9140(01)00395-2
14. W. C. Griffin, Classification of surface active agents by HLB, J. Cosmet. Sci., 1, 311-326 (1949).
15. T. Tamura, Y. Kaneko, and M. Ohyama, Dynamic surface tension and foaming properties of aqueous polyoxyethylene n-dodecyl ether solutions, J. Colloid Interface Sci., 173, 493-499 (1995). https://doi.org/10.1006/jcis.1995.1351
16. P. H. Elworthy and C. B. Macfarlane, surface activity of a series of synthetic non-ionic detergents, J. Pharm. Pharmacol., 14(S1), T16-131T (1962). https://doi.org/10.1111/j.2042-7158.1962.tb10517.x
17. L. Zhen, D. Huang, and R. Li, Ultrasonic-microwave synthesis of polyoxyethylenated stearyl ether maleic acid diester gemini surfactants, Res. Chem. Intermediates, 41(12), 9773-9783 (2015). https://doi.org/10.1007/s11164-015-1964-y
18. J. Yoon, W. Park, J. Park, S. Choi, B. Kim, and S. Oh, A study on the adhesion performance of acrylate using tack rolling ball test, J. Korea Inst. Build. Constr., 18(2), 173-174 (2018).