ARTIFICIAL CELLULOSE FIBRE AND NONWOVEN PRODUCT OR MATERIAL CONTAINING CELLULOSE FIBRE
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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FIELD: chemistry.SUBSTANCE: invention relates to modified cellulose fibre and a method for production thereof， as well as to a nonwoven product and paper containing said fibre. Fibre contains anionic parts in amount of more than 0.25 mol/kg of dry fibre and contains polymer modifying agent applied thereon in amount of 0.5–5.0 wt.??% of weight of dry fibre. Polymer modifying agent contains cationic parts with charge making at least 1.5 mcg-equivalent/g of polymer， and molar ratio of anionic parts and cationic parts contained in fibre ranges from 1:1 to 25:1. At that， anionic parts are introduced into fibre and consist of carboxymethyl cellulose， and polymer modifying agent containing cationic parts， is selected from a group consisting of polydiallyldimethylammonium chloride (polyDADMAC)， polyacrylamide-co-diallyldimethylammonium chloride) (PAM-DADMAC) and mixtures thereof.EFFECT: technical result of the invention is the creation of said fibre， which provides for the possibility of reversible fibre bonding with fibre and/or re-dispersion of fibres in liquids or water-based liquid without significant reduction in strength of paper or non-woven products.17 cl， 1 dwg， 11 tbl， 5 ex
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国家林业和草原科学数据中心
创建时间：
2023-02-12
