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Flexible Sucrose-Based Epoxies for Bonding Needlepunched Nonwoven Cotton Containing Composites to Dissimilar Materials

Navzer (Nozar) D. Sachinvala, David L. Winsor, Dharnidhar V. Parikh, Harry H. Solhjoo, Eugene J. Blanchard and Noelie R. Bertoniere


When flame resistant light weight needlepunched nonwoven cellulosic fabrics are first coated with a mixture comprising epoxy allyl sucroses (3.2 epoxy groups per sucrose) and amines, then adhered to aluminum foils, or other backing materials, and cured, flexible flame resistant composites are generated. The new materials will find use as home and tent insulation, sound barriers, cushioning material, and in the development of false walls. The new cotton-sucrose-based epoxy-aluminum composites are created from four types of materials:

• Flame-resistant nonwoven cotton containing fabrics (to act as fillers, padding, sound barriers, and insulation). • Epoxy allyl sucrose with 3.2 epoxy groups per sucrose (to crosslink cellulose, aluminum, and the amines; to provide flexibility to the cured composite; and prevent the cotton fibers from escaping the batt). • Long chain amines and amides (to cure sucrose-based epoxies, provide more flexibility, and afford water repellency). • Acrylic coated aluminum foils bonded to both sides of the composite fabric (to reflect heat, prevent the cotton fibers from escaping the batt, and afford water resistance).

Reprinted from Proceedings of the 1998 Beltwide Cotton Conferences pg. 784
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998