Effect of Different Tackifiers on Emulsion-Based Pressure-Sensitive Adhesive (PSA)

Document Type : Original Article

Authors

1 Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, P.O. Box: 9177948974, Mashhad, Iran

2 Samed Industry & Manufacturing Co. (Mashhad Adhesive), P.O. Box: 1432, Mashhad, Iran

Abstract

This work was intended to investigate the effect of various tackifiers (terpene phenolic resin (TPR), rosin ester (RS), and pentaerythritol rosin ester (PERS)) on the main properties of a PSA such as tack, peel, and shear strength. In this experiment, the PSA based on butyl acrylate-vinyl acetate was synthesized. Various characters such as solid content, conversion percentage, viscosity, and particle size were evaluated. Different concentrations of tackifiers were added to the formulation. The results confirm that the RS may be most compatible with the synthesized PSA. In addition, using 7.5 wt % of RS shows a significant change in the tack of the PSA; however, RS causes a sharply declining peel strength from 0.42 to 0.1 N/mm, while by adding TPR (5 wt%) besides PERE (2.5 wt %), the peel strength reaches its maximum level of 1.3 and 1 N/mm, respectively. Surprisingly, increasing the number of tackifiers causes diminished shear strength. 

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Main Subjects


  1. Y. Peykova , A. M. Diethert, P. Uller-Buschbaumb, N. Willenbacher, Adhesive properties of acrylate copolymers: Effect of the nature of the substrate and copolymer functionality, Int. J. Adhes. Adhes., 34(2012), 107-116.
  2. M. Khalina, H. S. Mobarakeh, A. Mahdavian, Preparation of acrylic/silica nano composites latexes with potential application in pressure sensitive adhesive, Int. J. Adhes. Adhes., 58(2015), 21-27.
  3. C. Fang, Effect of propylene imine external cross-linker on the properties of acrylate latex pressure sensitive adhesives, Int. J. Adhes. Adhes.,6(2015), 1-7.
  4. S. M. Taghizadeh, Rheological and adhesion properties of acrylic pressure-sensitive adhesives, J. Appl. Polym. Sci., 120(2011), 411-418.
  5. H. Ismail, F. W. Yew, Effect of monomer composition on adhesive performance for waterborne acrylic pressure-sensitive adhesives, J. Phys. Sci., 22(2011), 51-63.
  6. S. Abbasi Geravand, A. A. Yousefi, N. Naderpour, Mini-emulsion preparation, kinetics of reaction and physical properties of acrylic terpolymer lattices, Prog. Color Colorants Coat. 9(2016), 269-279.
  7. C. Fang, Z. Lin, Modification Research on the peel strength of the acrylate Eemulsion pressure-sensitive adhesives, J. Appl. Polym. Sci., 131(2014), 18-22.
  8. Z. Czech, Development of solvent free pressure sensitive adhesive arrylics, Int. J. Adhes. Adhes., 24(2004), 119-125.
  9. L. Qie, The influence of butyl acrylate/methyl meth acrylate/2-hydroxyethyl methacrylate/acrylic acid latex properties on pressure sensitive adhesive performance, Int. J. Adhes. Adhes., 30(2010), 107-116.
  10. V. M. Ovando‐Medina, R. D. Peralta, E. Mendizábal, G. Y. Cortez‐Mazatan, Semicontinuous heterophase copolymerization of vinyl acetate and butyl acrylate, Appl. Polym. Sci., 127(2013), 2458-2464.
  11. C. S. Chern, Principle and Application of Emulsion Polymerization. USA: a John Wiley & Sons, 2006.
  12. Y. Nakamura, M. Adachi, K. Ito, Y. Kato, S. Fujii, M. Sasaki, Y. Urahama, S. Sakurai, Effects of compatibility between tackifier and polymer on adhesion property and phase structure: Tackifier-added polystyrene-based triblock/diblock copolymer blend system, J. Appl. Polym. Sci.,120(2010), 2883-2893.
  13. S. Sun, M. Li, A. Liu, A review on mechanical properties of pressure sensitive adhesives, Int. J. Adhes. Adhes., 41(2013), 98-106.
  14. B. Yuan, C. McGlinchey, E. M. Pearce, Explanation of tackifier effect on the viscoelastic properties of polyolefin‐based pressure sensitive adhesives, J. Appl. Polym. Sci., 99(2006), 2408 - 2413 .
  15. T. Doi, H. Takagi, N. Shimizu, N. Igarashi, S. Sakurai, Effects of solubility difference of tackifier to respective components of block copolymers on microphase-separated structures in coated layers of pressure-sensitive adhesive prepared by solution coating process, Appl. Polym. Mater., 28(2020), 4973-4984 .
  16. F. Simal, PH. Leclère, R. Lazzaroni, P. Roose, Adhesive properties of a radial acrylic block co-polymer with a rosin ester resin, J. Adhes. Sci. Technol., 21(2007), 559-574.
  17. D. K. Kumar, A. K. Bhowmick, Unique Behavior of Hydrocarbon Resin Tackifier on Unaged and Aged Tack of Brominated Isobutylene-co-p-methylstyrene (BIMS) Rubber, J. Adhes. Sci. Technol., 22(2008), 2039-2058.
  18. E. P. O'berine, G. R. Robe, T. Wiliams, D. G. Atkins, D.A. Moroney, M.A. Peters, Fundamentals of hot-melt pressure-sensitive adhesive tapes: the effect of tackifier aromaticity, J. Adhes. Sci. Technol., 21(2007), 637-661.
  19. J. K Birm, S. D Hyun, K. Sumin, J. K Hyun, Probe tack of tackified acrylic emulsion PSAs, Int. J. Adhes. Adhe.s, 27(2007), 102–107.
  20. S. O. Ilyina, V. Y. Ignatenko, N. M. Smirnovaa, O. A. Alekseeva, N. Petrukhina, The Effect of Tackifi er on the Properties of Pressure-Sensitive Adhesives Based on Styrene–Butadiene–Styrene Rubber, Russ. J. Appl. Chem., 91(2018), 59-62.
  21. A. V. Pocius, Adhesion and Adhesives Technology, Hanser Publishers, New York, 1997.
  22. C. Donker, The Chemistry of Tackifying Resins (Parts I, II, and III), Special Chem Adhesives, 2003.
  23. F. Arán-Aís, A.C. Orgilés-Barceló, J. M. M. Martínez, Characterization of thermoplastic polyurethane adhesives with different hard/ soft segment ratios containing rosin as an internal tackifier, J. Adhes. Sci. Technol., 16(2002), 1431-1448.
  24. F. Arán-Aís, A. C. Orgilés-Barceló, J. M. M. Martínez, Synthesis and characterization of new thermoplastic polyurethane adhesives containing rosin resin as an internal tackifier, J. Adhes. Sci. Techno.,, 14(2000), 1-14.
  25. D. J. Chol, K. H. Chung, Adhesion Properties of Styrene-butadiene-styrene triblock copolymer-based pressure-sensitive adhesives for protecting opto-functionalized sheets, Chem. Asian J., 25(2013), 5233-5236.
  26. F. Simal, PH. Leclère, R. Lazzaroni, P. Roose, Adhesive properties of a radial acrylic block co-polymer with a rosin ester resin, J. Adhes. Sci. Technol., 21(2007), 559-574.
  27. María L. Barrueso-Martínez, G. Carmen, M. Cepeda-Jiménez, J. Sepulcre-Guilabert, J. Miguel Martín-Martínez, Influence of the vinyl acetate content and the tackifier nature on the rheological, thermal, and adhesion properties of EVA adhesives, Adhes. Sci. Technol., 15(2001), 243-263.
  28. P. Raethong, Effect of type and content of tackifier on adhesion of natural rubber and reclaimed natural rubber based sealant, I.P.S.T., 223(2016), 1-9.
  29. T. Ferrandiz-Gomez, A. C. Orgiles-Barcelo, J. M. Martín-Martínez, Effects of hydrocarbon tackifiers on the adhesive properties of contact adhesives based on polychloroprene. I. Influence of the amount of hydrocarbon tackifier, J. Adhes. Sci. Technol., 10(1996), 1-6.
  30. T. Ferrandiz-Gomez, A. C. Orgiles-Barcelo, J. M. Martín-Martínez, Effects of hydrocarbon tackifiers on the adhesive properties of contact adhesives based on polychloroprene - III. The effect of the molecular weight of the tackifier, J. Adhes. Sci. Technol., 11(1997), 1383-1399.
  31. W. Thaijaroen, Effect of tackifiers on mechanical and dynamic properties of carbon-black-filled NR vulcanizates, Eng J., (2011), 1-8.
  32. H. Li, Effect of hydrogenated acrylic rosin on structure and properties of polyacrylates emulsions by seeded semibatch emulsion polymerization method, J. Adhes. Sci. Technol., 29(2015), 740-752.
  33. K. Zhang, P. Sun, M. Shen, D. Wang, Hydrogenated rosin ester latexes/waterborne polyacrylate blends for pressure-sensitive adhesives, J. Appl. Polym. Sci., 133(2016), 42965-42978.
  34. M. Fujita, A. Takemura, H. Ono, H. Mizumachi, S. Hayashi, Miscibility between natural rubber and tackifiers. I. phase diagrams of the blends of natural rubber with rosin and terpene resins, J. Appl. Polym. Sci., 64(1989), 2-7.
  35. H. J. Kim, H. Mizumachi, Miscibility and fracture energy of probe tack for acrylic pressure-sensitive adhesives: acrylic copolymer/tackifier esin systems, J. Appl. Polym. Sci., 69(1989), 1-7.
  36. L. D. Turreda, M. Takemoto, M. Kajiyama, Y. Hatano, H. Mizamuchi, Rheological study on the adhesion properties of the blends of ethylene vinyl acetate/terpene phenol adhesives, J. Appl. Polym. Sci., 70(1989), 1-10.
  37. S. Hayashi, M. Kajiyama, H. Ono, H. Mizumachi, Z. Zufu, Miscibility and pressure-sensitive adhesive performances of acrylic copolymer and hydrogenated rosin systems, J. Appl. Polym. Sci., 71(1999), 2-4.
  38. P. Chen, H. Li, X. Liu, D. Liu, X. Li, Effect of polymerized rosin on polymer microstructure and adhesive properties in tackified acrylate emulsions, Polym. Plast. Technol. Eng., 51(2012), 122-127.
  39. H. Li, T. Liang, Y. Li, X. Lai, X. Ren, X. Zeng, In situ synthesis and properties of hydrogenated rosin/polyacrylate composite miniemulsions-based pressure sensitive adhesives, J. Adhes. Sci. Technol., 29(2015), 2220-2232.
  40. A. Shybi, S. Varghesea, N. Varghesea, S. Thomasb, Natural rubber latex-based adhesives: role of nanofillers, J. Adhes. Sci. Technol., (2021), 406-418.
  41. J. Khanjani, G. H. Zohuri, M. Gholami, B. Shojaei, R. Dalir, Emulsion semi-batch terpolymerization process using hybrid emulsifiers for synthesizing new emulsion pressure sensitive adhesives (EPSAs), J. Adhes., 90(2014), 174-194.
  42. Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball, Annual Book of ASTM Standard, ASTM Standard, D- 3121 2017.
  43. Standard Test Methods for Shear Adhesion of Pressure-Sensitive Tapes, Annual Book of ASTM Standard, ASTM Standard, D-3654, 2011.
  44. Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape, Annual Book of ASTM Standard, ASTM Standard, D-3330, 2010.
  45. Standard Test Method for Rubber Latex-Determination of apparent viscosity by the brookfield, International Organization for Standardization, ISO 1652, 4th edition, 2011.
  46. R. E Ghorbani, G. H. Zohuri, M. Gholami, Novel synthesis method and characterization of poly(vinyl acetate-butyl acrylate) latex particles: effect of silanol-terminated poly(dimethylsiloxane) surfactant on the seeded emulsion copolymerization, J. Surfactants. Deterg., 20(2017), 891-904.
  47. A. K. Singh, D. S. Mehra, U. K. Niyogi, S.Sabharwal, R.K. Khandal, Shrinkage studies in electron beam curable polyuretane pressure-sensitive adhesive, Radiatn. Phys. Chem., 81(2012), 1426-1434.
  48. A. V. Pocius, Adhesion and Adhesives Technology, 3rd edition, München: Carl Hanser Verlag GmbH & Co. KG, 2012.