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用淀粉与碳酸钙填料共混后进行糊化溶胀,再进行干燥和研磨处理的方法制备淀粉包覆改性碳酸钙填料。对淀粉包覆改性碳酸钙造纸填料的抗剪切性能、留着性能和纸张强度性能进行了分析。研究结果表明:淀粉包覆改性后的碳酸钙填料具备较强的抗剪切性能,同时具有较高的留着率;相比于添加未经淀粉包覆改性的碳酸钙填料,添加淀粉包覆改性碳酸钙填料的纸页强度性能较高,且强度性能下降的幅度明显减缓。
Starch and calcium carbonate filler blending gelatinized swelling, and then dried and ground to prepare a starch-coated modified calcium carbonate filler. The anti-shear properties, retention properties and paper strength properties of starch-coated modified calcium carbonate papermaking filler were analyzed. The results show that: the starch coated modified calcium carbonate filler has strong shear resistance, while having a higher retention rate; compared with the addition of non-starch coated modified calcium carbonate filler, adding starch Paper sheets coated with modified calcium carbonate have higher strength properties and significantly lower strength properties.