| 摘要 |
Chemically treated inorganic oxide substrates of the present invention have good adhesion to polymeric materials with high process temperatures or good thermal resistance. The chemical treatment exists on the substrate as a volatile-reduced residue of a treatment comprised of at least one film forming polymer that is essentially free of polyvinylacetate homopolymer and polyacrylic homopolymers and copolymers, at least one fiber lubricant, an organofunctional silane coupling agent present in an amount up to around an effective coupling agent amount, at least one organo alkoxide of a metal selected from the group comprising titanium and zirconium and a carrier for application of the chemical treatment to the substrate. The amount of the film forming polymer and lubricant are effective film forming and lubricating amounts, respectively. The amount of the organo alkoxide of the metal is an amount in the range of greater than 10 parts per 100 parts of the film forming polymer and up to at least an effective coupling agent amount. For instance, the chemical treating composition can be an aqueous composition applied to glass fibers. In this instance the film forming polymer is selected from epoxy polymers, polyurethane polymers and mixtures thereof as separate polymers or as copolymers where the total amount is an effective film forming amount. The fiber lubricant is a nonionic fiber lubricant of a polyoxyalkylene including polyethylene oxide and polypropylene oxide copolymers where the amount of the polypropylene oxide moiety is less than around 80 weight percent of the copolymer. With the specified combination of film forming materials the organo alkoxide of the metal like alkanolamine titanates or zirconates is present in an amount up to and including an effective coupling agent amount. Also, there may be present at least one organofunctional silane coupling agent like an aminosilane coupling agent or glycidoxy or ureido functional silane coupling agents. When both the silane and the organo alkoxide of the metal are present, the total amount in the aqueous composition can comprise an effective coupling agent amount wherein the ratio of one to the other is in the range of around 1 to 6 to 6 to 1. These chemically treated glass fibers find particular suitability in reinforcing high temperature processed polymers and thermal resistant polymers such as polyphenylenesulfide, polyethylene imide and polyethersulfone and the like.
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