Chlorinated maleinized guayule rubber as an adhesion promoter for polypropylene
- 68 Downloads
Chlorinated maleinized guayule rubbers (CMGR) were synthesized and applied as coatings onto polypropylene panels. CMGR orientation was critical to adhesion and was verified by contact angle measurements. Reducing the quantity of tetrahydrofuran (THF) decreased adhesion from 57 N/cm2 with pure THF to 23 N/cm2 with four percent THF in water. Percent maleinization above a critical concentration of 15 by weight decreased adhesion. However, 10% maleinization was required for dispersion stability in water while 5–10% concentration provided maximum adhesion. A five percent maleic CMGR dispersion at 240 g/L THF concentration was stable for less than 24 hr while a 10% maleic anhydride concentration has shown long-term stability.
KeywordsContact Angle Volatile Organic Compound Maleic Acid Water Contact Angle Maleic Anhydride
Unable to display preview. Download preview PDF.
- (1) (a).Good, R.J., van Oss, C.J., and Chaudhury, M.K., inFundamentals of Adhesion, Lee, L-H. (Ed.), Plenum, New York, 153–179, 1992;Google Scholar
- (1) (b).
- (1) (c).
- (3) (a).
- (3) (b).Fowkes, F.M., inAcid-Base Interactions: Relevance to Adhesion Science and Technology, Mittal, K.L. and Anderson, H.R. Jr., (Eds.), Utrecht, The Netherlands, 47–65, 199, 93–115, 1991;Google Scholar
- (3) (c).
- (3) (d).
- (4).Berry, S.R., Rice, S.A., and Ross, J.,Physical Chemistry, Wiley, New York, 413, 1980.Google Scholar
- (5).Alberty, R.A. and Silbey, R.,Physical Chemistry, First Edition, Wiley-Interscience, New York, 415, 1992.Google Scholar
- (6).Sales, A.A., “Dispersion Composition and Method for Making and Using Same,” U.S. Patent No. 5 169 888 (1991).Google Scholar
- (7).Ainsworth, O.C., “Thermoplastic Elastomers Based upon Chlorosulfonated Polyethylene and a Crystalline Olefin Polymer,” U.S. Patent No. 5 387 648 (1993).Google Scholar
- (8).Jackson, M.L. et al., “Chlorine-Free, Zero VOC Waterborne Adhesion Promoter for Polyolefinic Substrates,” U.S. Patent No. 5 709 946 (1995).Google Scholar
- (9).Sharma, M.K., “Waterborne Polyolefin Adhesion Promoter,” U.S. Patent No. 5 585 192 (1995).Google Scholar
- (10).Toyo Kasei Kogyo, “Modified Polyolefine Resin Coating Compositions,” Eur. Patent No. A 080 767 1 (1998).Google Scholar
- (11).Ryntz, R.A., “Selection of Weatherable Coatings for Thermoplastic Olefins,”Journal of Coatings Technology,63, No. 799, 63 (1991).Google Scholar
- (12).Purvis, W.A. and Thames, S.F., “Chlorinated-Maleinized Guayule Rubber: A Novel Matting Agent for Powder Coatings,”Journal of Coatings Technology,68, No. 857, 67 (1996).Google Scholar
- (13).Adamson, A.W. and Gast, A.P.,Physical Chemistry of Surfaces, Sixth Edition, Wiley-Interscience, New York, 465–470, 1997.Google Scholar
- (14).Koenig, J.L.,Spectroscopy of Polymers, American Chemical Society, Washington, D.C., 47, 1992.Google Scholar
- (15).Chattoraj, D.K. and Birdi, K.S.,Adsorption and the Gibbs Surface Excess, Plenum, New York, 1984.Google Scholar