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A POLYMER PRODUCT FOR IMPROVING RETENTION OF HYDROPHOBIC INTERNAL SIZING AGENTS IN MANUFACTURE OF PAPER OR BOARD
A POLYMER PRODUCT FOR IMPROVING RETENTION OF HYDROPHOBIC INTERNAL SIZING AGENTS IN MANUFACTURE OF PAPER OR BOARD
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机译:一种用于提高纸或纸板制造中疏水性内部施胶剂的保留性的聚合物产品
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摘要
The invention relates a method for a manufacturing paper or board and to an internal sizing system for providing improved retention of hydrophobic internal sizing agents. An internal sizing system comprises a hydrophobic internal sizing agent as a first component selected from the group consisting of alkenyl5 succinic anhydride (ASA), alkyl ketene dimer (AKD), rosin sizes and any combination thereof, and a water-soluble polymer product comprising amphoteric polyacrylamide as a second component, which amphoteric polyacrylamide has neutral or cationic net charge at pH 7, a weight-average molecular weight10 of 700 000 18 000 000 g/mol and a total ionicity of 4 28 mol- %, wherein the first component and the second component are provided as separate components or as a combination of the first component and the second component.
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机译:本发明涉及一种用于制造纸或纸板的方法以及一种用于提供疏水性内部施胶剂的改善的保留的内部施胶系统。内部施胶系统包括疏水性内部施胶剂作为选自由烯基5琥珀酸酐(ASA),烷基烯酮二聚体(AKD),松香胶料及其任意组合组成的组的第一组分,以及包含两性的水溶性聚合物产品聚丙烯酰胺作为第二组分,该两性聚丙烯酰胺在pH 7时具有中性或阳离子净电荷,重均分子量10为700000 18000000 g / mol,总离子度为4 28 mol%,其中第一组分和第二组件作为单独的组件或第一组件和第二组件的组合提供。
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