Abstract
Paper is a layered mat consisting of a network of cellulose fibres bonded together. Each of the fibre-fibre contacts is held together by intermodular forces (van der Waals; hydrogen bonding) which are very sensitive to water, the extent of bonding decreasing steadily as the water content of the paper increases [1]. The water wets the fibres which swell; the bonds are broken leaving somewhere between 3% and 10% of the original dry strength (at 50% relative humidity). It is thought that some of this residual strength results from covalent fibre-fibre bonds [2, 3]. Apart from the influence of the physical properties of the fibre network, the strength of the paper matrix is dependent on the bonded area, and this can be increased by forcing the surfaces together as in wet pressing, or by increasing fibre flexibility and swelling. Other solvents also affect strength, and their effects are essentially related to their ability to swell cellulose [4–6].
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References
Britt, K.W., ‘Review of developments in wet-strength paper’. Tech. Assoc. Papers, 31 (1948), 594–596.
Salmen, N.L., ‘Mechanical properties of wood fibers and papers’, in Cellulose Chemistry and its Applications, eds Nevell, T.P. and Zeronian, S.H., Ellis Horwood, Chichester (1987), Ch. 20, 505–530.
Back, E.L., ‘Cellulose at high temperatures. Autocrosslinking, glass transition and melting caused by laser rays’. Papier, 27 (10A) (1973), 475–483.
Robertson, A.A., Pulp and Paper Report No 26, Pulp and Paper Research Institute of Canada, Montreal, Canada (1969).
Britt, K.W., Tappi J., 46 (12) (1963), 154A.
Thode, E.F. and Guide, R.G., ‘A thermodynamic interpretation of the swelling of cellulose in organic liquids: the relations among solubility parameter, swelling and internal surface’. Tappi J., 42 (1959), 35–39.
Britt, K.W., ‘Some observations on wet-strength paper’. Paper Ind. Paper World, 26 (1) (1944), 37–41.
Britt, K.W., ‘Some observations on wet-strength paper’. Paper Ind. Paper World, 26 (1) (1944), 46.
Maxwell, C.S. and Reynolds, W.F., ‘Permanence of wet-strength paper’, Tappi J., 33 (4) (1950), 179–182.
Stannett, V.T., ‘Mechanisms of wet-strength development in paper’, in Surfaces and Coatings Related to Paper and Wood, eds Marchessault, R.H. and Skaar, C., Syracuse University Press, Syracuse, New York (1967), Ch. 10, 269–299.
Westfeit, L., ‘Chemistry of paper wet strength. I. A survey of mechanisms of wet-strength development’. Cellulose Chem. Technoi., 13 (1979), 813–825.
Britt, K.W., ‘Wet-strength’, in Pulp and Paper Chemistry and Chemical Technology, 3rd Edition, ed. J.P. Casey, John Wiley & Sons, New York (1980), vol. III, Ch. 18, 1609–1626.
Neal, C.W., ‘A review of the chemistry of wet-strength development’, in 1988 Tappi Wet and Dry Strength Short Course, Chicago, April 13–15 (1988), Tappi Press, Atlanta, 1–24.
Espy, H.H., ‘The effects of pulp refining on wet-strength resin’. Tappi J., 70 (7) (1987), 129–133.
Fredholm, B., Samuelsson, B., Westfelt, A. and Westfeit, L., Cellulose Chem. Technoi., 17 (3) (1983), 279.
Schur, M.O., Improving the Wet-Strength of Papers. US Patent 2,116,544, (1938) Brown Company, 10.05.1938.
Schaeffer, A., ‘Chemical processes in the treatment of staple nylon with formaldehyde’, Zelwolle, Kunsteide, Seide, 48 (1943), 1–8.
Britt, K.W., ‘Review of developments in wet-strength paper’. Paper MillNews, 70 (39) (1947), 106.
Britt, K.W., ‘Review of developments in wet-strength paper’. Paper MillNews, 70 (39) (1947), 109.
Yost, R.S. and Auten, R.W., US Patent 2,407,599 (1956), 17.04.56.
Brent, E.A., Drennen, T.J. and Shelley, J.P., ‘Urea—formaldehyde resins’, in Wet Strength in Paper and Paperboard, ed. Weidner, J.P. Tappi Monograph Series No. 29, Tappi Press, New York (1965), Ch. 1, pp. 9–19.
Woehnsiedler, H.P. and Thomas, W.M., Cationic Melamine—Formaldehyde Resin Solutions. US Patent 2,345,543 (1944), American Cyanamid Company, 28.03.1944.
Maxwell, C.S., Pacific Pulp Paper Ind., 17 (4) (1943), 6.
Woehnsiedler, H.P., ‘Urea—formaldehyde and melamine—formaldehyde condensations’, Ind. Eng. Chem., 44(11) (1952), 2679–2686.
Maxwell, C.S., ‘Melamine formaldehyde’, in Wet-strength in Paper and Paperboard, Tappi Monograph Series No. 29, Tappi Press (1965), Ch. 2, 20–32.
Salley, D.J. and Blockman, A.F., Paper Trade J. 125 (1) (1947), 35.
Keim, G.I., US Patent 2,926,116, (1965), High Wet-strength Paper. US Patent 2,926,116, Hercules Powder Company, 23.02.1960.
Keim, G.I., US Patent 2,926,154, Cationic Thermosetting Polyamide—Epichlorohydrin Resins for Preparing Wet-strength Paper, Hercules Powder Company, 23.02.1960.
Moyer, W.W. and Stagg, R.A., ‘Polyamide—polyamine—epichlorohydrin resins’, in Wet-strength in Paper and Paperboard, Tappi Monograph Series No. 29, Tappi Press (1965), Ch. 3, 33–37.
Chan, L.L., ‘Expoxidized polyamide resins’, in 1988 Tappi Wet and Dry Strength Short Course, Chicago, April 13–15 (1988), Tappi Press, Atlanta, 25–30.
Espy, H.H., ‘Alkaline-curing polymeric amine-epichlorohydrin resins’, in Wet-Strength Resins and Their Application, ed. Lock L. Chan, Tappi Press, Atlanta, Georgia (1994), Ch. 2, 13–44.
Espy, H.H. and Rave, T.W., ‘The mechanism of wet-strength development by alkaline-curing amino polymer-epichlorohydrin resins’. Tappi J., 71 (5) (1988), 133–137.
Bates, N. A., ‘Polyamide—epichlorohydrin wet-strength resin II. A study of the mechanism of wet-strength development in paper’. Tappi J., 52 (6) (1969), 1162–1168.
Pahl, B.L. and Espy, H.H., ‘Use of polyamide resins in board’, in 1988 Tappi Wet and Dry Strength Short Course, Chicago, April 13–15 (1988), Tappi Press, Atlanta, 31–37.
Gill, R.I.S., ‘CARTAFIX — An effective control of interfering substances’, in Specialty Chemicals for the Paper Industry, Proc. Pira Paper and Board Division Conference, ref: 31/003/CM/81, Leeds, 6th March (1990), Paper No. 03.
Ampulski, R.S. and Neal, C.W., ‘The effect of inorganic ions on the adsorption and ion exchange of kymene 557H by bleached northern softwood kraft pulp.’ Nordic Pulp Paper Res. J., 2 (1989), 155–163.
Coscia, A.T. and Williams, L.L., US Patent 3,556,932. Water Soluble, Glyoxalated, Vinyl-amide Wet-Strength Resin and Paper Made Therewith, American Cyanamid Company (1968).
Farley, C.E., ‘Glyoxalated Polyacrylamide wet-strength resin’, in Wet Strength in Paper and Paperboard, Tappi Monograph Series, Tappi Press, Atlanta, (1991), in press.
Farley, C.E., Glyoxalated Polyacrylamide wet-strength resin, in 1988 Tappi Wet and Dry Strength Short Course, Chicago, April 13–15 (1988), Tappi Press, Atlanta, 39–42.
Coscia, A.T. and Williams, L.L., US Patent 3,556,933, American Cyanamid Company (1971).
Farley, C.E., in Proc. 1986 Tappi Papermaker’s Conference, Tappi Press, Atlanta (1986), 147.
Wasser, R.B., in Pulp and Paper Chemistry and Chemical Technology, 3rd edn, ed. J.P. Casey, John Wiley & Sons, New York (1980), vol. III.
Farley, C.E., “Glyoxalated Polyacrylamide resin”, in Wet-Strength Resins and Their Application, ed. Lock L. Chan, Tappi Press, Atlanta, Georgia (1994), Ch. 3, 45–61.
Sarkanen, K.V., ‘Polyethylenimine resins’, in Wet Strength in Paper and Paperboard, Tappi Monograph Series No. 29, Tappi Press (1965), Ch. 4, 38–49.
Wilfmger, H., Papier, 2 (1948), 265.
Trout, P.E., The Mechanism of the Improvement of the Wet Strength of Paper by Polyethylenimine, Ph.D. Thesis, Lawrence College (1951).
Allan, G.G. and Reif, W.M., ‘Fibre surface modification Part 6. The Jack-in-the-box effect: a new mechanism for the retention of polyethylenimine and other poly electrolytes by pulp fibres.’ Svensk Papperstidn., 74(2) (1971), 25–31.
Mehltretter, C.L., ‘Some landmarks in the chemical technology of carbohydrate oxidation’. Die Stärke, 15 (1963), 313.
Mehltretter, C.L., ‘Recent progress in dialdehyde starch technology,’ Die Stärke. 18 (1966), 208.
Hofreiter, B.T., Heath, H.D., Ernst, A.J. and Russell, C.R., Dialdehyde starch, an alkali labile wet-strength agent, Tappi J., 57 (8) (1974), 81.
Hamerstrand, G.E., Hofreiter, B.T., Kay, D.J. and Rist, C.E., Dialdehyde starch hydrazones-cationic agents for wet-strength paper. Tappi J., 46(7) (1963).
Hofreiter, B.T., ‘Dialdehyde starches’, in Wet-strength in Paper and Paperboard, Tappi Monograph Series No. 29, Tappi Press, (1965), Ch. 5, 50–73.
Weidner, J.P., (ed.), Wet-strength in Paper and Paperboard, Tappi Monograph Series No. 29, Tappi Press, New York (1965).
Pakinkis, F., Developments in wet-end starch technology, in World Pulp and Paper Technology 1990, Int. Review for the Pulp and Paper Industry, ed. Roberts, F., Sterling Publications International Ltd, London (1989), 263.
Pakinkis, F., Developments in wet-end starch technology, in World Pulp and Paper Technology 1990, Int. Review for the Pulp and Paper Industry, ed. Roberts, F., Sterling Publications International Ltd, London (1989), 266–269.
Allison, C.J., ‘Testing Methods’s’, in Wet-strength in Paper and Paperboard, ed. Weidner, J.P., Tappi Monograph Series No. 29, Tappi Press, New York (1965), Ch. 10, 131–143.
Kamutzki, W., ‘Wet-strength resins of low formaldehyde content’, Papier 41 (10A) (1987), 36–44.
Chan, L.L. and Martinez, E., in Proc. 1989 Tappi Papermakers’ Conference, Tappi Press, Atlanta (1989), 357.
Elliott, R.G. and Drapeau, W.G., in Proc. 1989 Tappi Papermakers’ Conference, Tappi Press, Atlanta (1989), 375.
Troemel, G. ‘AOX-value reduced with new set-strength agents’, in World Pulp and Paper Technology 1990, Int. Review for the Pulp and Paper Industry, ed. Roberts, F., Sterling Publications International Ltd., London (1989), 263.
Troemel, G. ‘AOX-value reduced with new set-strength agents’, in World Pulp and Paper Technology 1990, Int. Review for the Pulp and Paper Industry, ed. Roberts, F., Sterling Publications International Ltd., London (1989), 266–269.
Stange, A.M.W., ‘Wet-strength paper and additives in Europe’, in Wet-Strength Resins and Their Applications, ed. Lock L. Chan, Tappi Press, Atlanta, Georgia (1994), Ch. 6, 101–108.
Pelzer, R., Kamutzki, W. and Moller, K., ‘Wet-strength agents today — tomorrow?’ Wochenbl. Papierfabr., 117 (11–12) (1989), 499–500.
Pelzer, R., Kamutzki, W. and Moller, K., ‘Wet-strength agents today — tomorrow?’ Wochenbl. Papierfabr., 117 (11–12) (1989), 502.
Pelzer, R., Kamutzki, W. and Moller, K., ‘Wet-strength agents today — tomorrow?’ Wochenbl. Papierfabr., 117 (11–12) (1989), 504.
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Dunlop-Jones, N. (1996). Wet-strength chemistry. In: Roberts, J.C. (eds) Paper Chemistry. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0605-4_7
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DOI: https://doi.org/10.1007/978-94-011-0605-4_7
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