摘要:
An apparatus and method for ink jet printing on textiles is disclosed, wherein the steps of pre-treating, ink jet printing, and post-treating the textile takes place at the ink jet printer. A preferred method includes the steps of applying a pre-treat to the textile, evaporating excess water from the pre-treat, ink jet printing a pattern on the pre-treated textile, evaporating water from the ink in the pattern, applying a binder/post-treat to the pattern and curing the binder. The textile printing apparatus prints on an untreated textile by having a first application device to apply a pre-treat aqueous solution to the textile. A first heating element is arranged to evaporate most or all of the water from the pre-treated textile as it passes. An ink jet printer then accepts the pre-treated textile and prints the desired pattern on it. A second heating element at the output of the printer evaporates water from the ink in the pattern as the printed textile passes. A second application device applies a binder/post-treat to the printed textile after the ink evaporation. A third heating element dries and cures the binder/post-treat.
摘要:
Tractable metal oxide sols are made by combining at least one metal oxide compound, at least one organofunctional silane, at least one boron oxide compound, and a liquid, or metal oxide sols are made by combining at least one metal oxide compound, at least one organofunctional silane, at least one of an acid catalyst and salt/complex catalyst, and a liquid. Also disclosed are nanocomposites containing the metal oxide sols and at least one of metal nanoparticle, metal-chalcogenide nanoparticle, metal oxide nanoparticle, and metal phosphate nanoparticle. Further disclosed are composites containing a polymer material and at least one of the metal oxide sol and the nanocomposite.
摘要:
Disclosed are metal chalcogenide nanocomposites made of guest metal chalcogenide precursors and host metal oxide sols made by mixing at least one metal alkoxide, at least one organosilane, at least one boron oxide compound, and a liquid, and chalcogenizing the mixture. Also disclosed are dielectric nano-composites containing a dielectric material such as a polymer and the metal chalcogenide nanocomposites.
摘要:
Disclosed are silica sols made by combining at least one hydrolysable silane, at least one organofunctional silane, at least one boron oxide compound, and a liquid, or silica sols made by combining at least one hydrolysable silane, at least one organofunctional silane, at least one acid catalyst, and a liquid to provide an intermediate sol and combining at least one base catalyst with the intermediate sol. Also disclosed are nanocomposites containing the silica sols and at least one of metal nanoparticle, metal-chalcogenide nanoparticle, metal oxide nanoparticle, and metal phosphate nanoparticle. Further disclosed are composites containing a polymer material and at least one of the silica sol and the nanocomposite.
摘要:
In one embodiment, the present invention relates to a polymer prepared from a mixture containing a polymerization material and a polycondensation product of a partially hydrolyzed chelated metal oxide precursor. In another embodiment, the present invention relates to a process for making a polymer involving contacting a polymerization material with a metal oxide sol comprising a liquid and a polycondensation product of a partially hydrolyzed chelated metal oxide precursor to form a mixture and at least one of polymerizing and curing the mixture of the polymerization material and the polycondensation product.
摘要:
Radomes having increased transparency and reduced reflectivity and refractivity to radar waves may be prepared or repaired utilizing heat-curable resin-containing structural materials in which the heat-curable resin contains greater than about 70 weight percent of cyanate functional monomers. The structural materials take the form of matrix resin impregnated prepegs and composites, film adhesives, paste adhesives, syntactic foams, and expandable foams, and may be used to prepare numerous useful structural features including honeycomb materials and leading edge radomes containing syntactic foams.
摘要:
Prereact modifiers prepared by reacting a propenylphenol with an epoxy resin are useful in toughening heat curable bismaleimide resin systems so as to minimize impact produced damage, and which have exceptional gel times.
摘要:
Silicone-polyimide copolymers having terminal silanol or silicon hydride radicals are provided based on the use of a norbornene terminated polyimide. A hydrosilation reaction is employed to introduce silicon-hydrogen into the terminal position of the polyimide having norbornene termination. The resulting hydrosilyl terminated polyimide is reacted with silanol terminated polydiorganosiloxane in the presence of a catalyst to produce silanol terminated polydiorganosiloxane-polyimide copolymer. Room temperature or low temperature condensation vulcanizable compositions based on the use of such silanol-terminated copolymers provide cured silicon-polyimide copolymers exhibiting improved toughness.
摘要:
Disclosed are metal oxide sols made by mixing at least one metal alkoxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal; at least one organosilane; at least one boron oxide compound selected from the group consisting of boric acid, alkoxy boron compounds, hydrocarbyl boric acids, hydrocarbyl hydroxy boron alkoxides, and hydroxy boron alkoxides; and a liquid. Also disclosed are composites containing a polymer and the metal oxide sols.
摘要:
A display includes a light source. The display also includes a filter positioned to receive light from the light source. The filter is a dye-based filter and attenuates light in the infrared range. The filter can be configured to have a very sharp spectral cutoff. The filter can be an NVIS filter. The display can be utilized in an avionic display system with night vision equipment. The filter can include a host polymer doped with a dye including cobalt or nickel.