The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 2000
Filed:
Oct. 13, 1998
Shalaby W Shalaby, Anderson, SC (US);
Jacqueline M Allan, Bowie, MD (US);
Meng Deng, Central, SC (US);
Poly-Med, Inc., Anderson, SC (US);
Abstract
Disclosed are fiber-reinforced composites having untraditionally low fiber loading and a novel form of hybridized interface. Typical examples of fiber-matrix combinations capable of developing such interfaces include surface-phosphonylated ultrahigh molecular weight polyethylene (UHMW-PE) and polypropylene (PP) yarns (or fabric constructs) and epoxy resin, acrylic resin, and cement. For further improvement of the hybridized interface and the overall composite properties, the surface-phosphonylated fiber may be post-treated with reagents that will improve the abridging of the fibers to the matrix through physicochemically hybridized interfaces. Compared with composites having unmodified fiber, those based on modified ones, with or without post-treatment, exhibit a substantial increase in physicomechanical properties at exceptionally low fiber loading, ranging from about 0.1 to 35 percent by weight, preferably from about 0.1 to about 20 percent by weight, most preferably less than 10 percent by weight. Among these properties are maximum tensile strength, fracture toughness, and modulus.