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对矿物纤维不同的改性方法及其在不同浆料中的应用进行了研究。结果显示,对于漂白麦草浆,用CPAM改性矿物纤维效果优于CS,其最佳添加量11%,相对于未添加矿物纤维,其抗张指数、撕裂指数、耐折度、耐破指数分别下降8.8%、11.5%、25.0%、11.9%,透气度提高了281.4%;对于漂白阔叶木浆,同样CPAM改性优于CS,其最佳添加量可达14%,相对于未添加矿物纤维,其抗张指数、撕裂指数、耐折度、耐破指数分别下降了10.8%、14.1%、32.6%、19.0%,透气度提高了328.2%。添加矿物纤维的效果明显优于滑石粉填料,表明矿物纤维除了起填料作用外还有纤维效应。最后通过不同pH值下的ζ电位分析矿物纤维的改性结果。
Different modification methods of mineral fibers and their application in different slurries were studied. The results showed that for bleached wheat straw pulp, the CPAM modified mineral fiber was better than CS, the best addition amount was 11%. Compared with the non-added mineral fiber, the tensile index, tear index, folding resistance, burst index Respectively, decreased by 8.8%, 11.5%, 25.0% and 11.9% respectively, and the air permeability increased by 281.4%. For bleached hardwood pulp, the same CPAM modification was better than that of CS with the best addition of 14% Fiber, the tensile index, tear index, folding resistance, burst index decreased by 10.8%, 14.1%, 32.6%, 19.0%, air permeability increased by 328.2%. The effect of adding mineral fibers is significantly better than that of talc filler, indicating that the mineral fibers have a fiber effect in addition to the filler effect. Finally, the results of mineral fiber modification were analyzed by zeta potential at different pH values.