摘要:
Provided herein are nanofibers and processes of preparing nanofibers. In some instances, the nanofibers are metal and/or ceramic nanofibers. In some embodiments, the nanofibers are high quality, high performance nanofibers, highly coherent nanofibers, highly continuous nanofibers, or the like. In some embodiments, the nanofibers have increased coherence, increased length, few voids and/or defects, and/or other advantageous characteristics. In some instances, the nanofibers are produced by electrospinning a fluid stock having a high loading of nanofiber precursor in the fluid stock. In some instances, the fluid stock comprises well mixed and/or uniformly distributed precursor in the fluid stock. In some instances, the fluid stock is converted into a nanofiber comprising few voids, few defects, long or tunable length, and the like.
摘要:
Provided herein are nanofibers and processes of preparing nanofibers. In some instances, the nanofibers are metal and/or ceramic nanofibers. In some embodiments, the nanofibers are high quality, high performance nanofibers, highly coherent nanofibers, highly continuous nanofibers, or the like. In some embodiments, the nanofibers have increased coherence, increased length, few voids and/or defects, and/or other advantageous characteristics. In some instances, the nanofibers are produced by electrospinning a fluid stock having a high loading of nanofiber precursor in the fluid stock. In some instances, the fluid stock comprises well mixed and/or uniformly distributed precursor in the fluid stock. In some instances, the fluid stock is converted into a nanofiber comprising few voids, few defects, long or tunable length, and the like.
摘要:
According to the present invention, water repellant curable compositions comprise: (i) one or more polyacid comprising at least two carboxylic acid groups, anhydride groups, or salts thereof; (ii) one or more polyol comprising at least two hydroxyl groups; (iii) one or more reactive waterproofing agent chosen from a C 5 to C 30 alk(en)yl 2-hydroxyethyl (alk(en))amide, C 5 to C 30 alk(en)yl bis(2-hydroxyethyl) amide, C 11 to C 30 alk(en)yl 2-hydroxyethyl (alk(en))amine, C 11 to C 30 alk(en)yl bis(2-hydroxyethyl) amine, C 11 to C 30 alk(en)yl tris(2-hydroxyethyl) amine, C 5 to C 30 alk(en)yl monoglyceride, C 5 to C 30 alk(en)yl monocarboxylate of a trihydric polyol, and mixtures thereof, and, (iv), optionally, one or more phosphorous-containing accelerator, wherein the ratio of the number of equivalents of said carboxylic acid groups, anhydride groups, or salts thereof to the total number of equivalents of said hydroxyl groups is from 1/0.01 to 1/3. The compositions provide concentrates dilutable with water to make thermosetting aqueous binder compositions. Further, the present invention provides methods of treating or contacting substrates chosen from a non-woven, woven and a composite, such as glass fiber substrates, with the thermosetting aqueous binder compositions, and drying and curing, as well as water resistant products produced thereby.
摘要:
Conductive nonwoven webs are disclosed. The nonwoven webs contain pulp fibers combined with conductive fibers. In one embodiment, the webs are made in a wetlaid tissue making process.
摘要:
Methods of using performed nanotubes to make carbon nanotube films, layers, fabrics, ribbons, elements and articles are disclosed. To make various articles, certain embodiments provide a substrate (12). Performed nanotubes are applied to a surface of the substrate to create a non-woven fabric of carbon nanotubes. Portions of the non-woven fabric (54) are selectively removed according to a defined pattern to create the article. To make a nonfabxic, a substrate is provide. Prefromed nanotubea are applied to a surface of the substrate to create a non-woven fabric of carbon nanotubes wherein the non-woven fabric is substantially uniform density.
摘要:
Process for producing an alumina fiber aggregate comprising spinning with a spinning solution by blowing method to obtain an alumina short fiber precursor aggregate and calcining the alumina short fiber precursor aggregate, characterized in that the scatter of gas flow velocity per slit from an air nozzle is within ± 15 % and the scatter of liquid flow rate per spinning solution supply nozzle is within ± 5 %.