摘要:
The invention relates to a method for production of an auto-adhesively bonded, porous, pressure-resistant molding made from comminuted lignocellulosic fibrous materials that are processed at temperatures between 120° C. and 180° C. and a pressure between 2 bar and 8 bar to yield a fiber suspension that is subsequently filled into a mold or applied to a carrier and dried without the addition of a synthetic binder.
摘要:
This invention relates to a paper friction material and a method of manufacturing the same, wherein the paper friction material is configured such that dispersibility and bondability are increased between a filler and a matrix. The paper friction material which is suitable for use in a vehicle, includes a friction base including pulp and a coating layer formed on the friction base using a mixture of latex and a functional material. The OH reactive group of the pulp and the aromatic ring of the latex are hydrogen-bonded so that the friction base and the coating layer are coupled with each other.
摘要:
A process for producing paper or board, which process comprises ad-mixing (I) an aqueous composition of pH ≦6 and (II) at least one water-soluble polymeric anionic compound to a paper stock having a pH in the range from 6 to 8 and then dewatering the paper stock by sheet formation and drying, wherein the aqueous composition comprises (a) polymers having primary amino groups and/or amidine groups to a combined content for these groups of ≧1.5 meq/g of polymer, and (b) 0.01 to 50 mol % of 1,4-cyclohexanedione (b) based on the combined amount of primary amino groups and/or amidine groups of the polymers, and also to the paper or board thus obtained.
摘要:
A basecoat including a pigment blend that includes a ground calcium carbonate component and a hyperplaty clay component, wherein the ground calcium carbonate component has a coarse particle size distribution, and wherein the hyperplaty clay component has an average aspect ratio of at least 40:1.
摘要:
The present disclosure describes a treated cellulosic material comprising: a cellulosic material having a porous structure defining a plurality of pores, at least a portion of the pores containing a treating agent comprising: a polymer comprising an olefin-carboxylic acid copolymer; a modifying agent comprising a bivalent, trivalent, or tetravalent metal ion.
摘要:
An article comprising a substrate which carries a doped tin oxide wherein less than 50 mol % of the tin atoms in the tin oxide are substituted with a dopant element.
摘要:
A base paper for heat exchangers having a stacked structure including at least one layer of a first layer composed mainly of a fibrous substance with a Canadian standard freeness specified in JIS P8121 (1995) of less than 150 ml and at least one layer of a second layer composed mainly of a fibrous substance with a Canadian standard freeness specified in JIS P8121 (1995) of greater than or equal to 150 ml, and a total heat exchange element prepared by stacking pieces of corrugated cardboard in which the base paper for heat exchange is used as a part thereof.
摘要:
A method of making paper includes mixing calcium hydroxide into a water and pulp fiber slurry. The method also includes reacting the calcium hydroxide and pulp fiber slurry under a carbon dioxide pressure. Further, the method includes causing calcium carbonate precipitate to form in response to the reacting.
摘要:
A method of manufacturing a fibrous web including: preparing furnish of a thick stock component and filtrate, preparing foamed furnish by mixing a surfactant and gas into the furnish, introducing the foamed furnish to a headbox of a fiber web machine, and laying the foamed furnish on a wire or between wires of a wire section of a fiber web machine for forming the fibrous web, wherein the preparation of the foamed furnish by injecting the gas uses an injection liquid to the furnish.