机构地区: 福建农林大学材料工程学院
出 处: 《纸和造纸》 2015年第1期18-22,共5页
摘 要: 以漂白化学热磨机械浆(BCTMP)和针叶木漂白硫酸盐(BKP)为原料,研究阳离子淀粉(CS)单元助留体系、CS/阴离子聚丙烯酰胺(APAM)双元助留体系、轻质碳酸钙(PCC)及烷基烯酮二聚体(AKD)添加对PCC留着率、白水阳离子需求量(CD值)和成纸性能(纸页强度、白度和不透明度)的影响。结果表明:CS体系与CS/APAM体系都可提高PCC留着率、降低白水CD值;PCC的添加可以显著提高壁纸原纸不透明度及白度,但当其添加量超过4%时,纸页抗张指数和撕裂指数迅速下降;添加AKD可显著提高纸张的抗水性能。当CS、APAM、PCC和AKD用量分别为0.6%、0.01%、4%和0.6%时,纸页抗张指数、耐破指数和撕裂指数分别为30 N·m·g-1、2.6 k Pa·m2·g-1和15 m N·m2·g-1,Cobb60约为25 g·m-2,纸页白度和不透明度为71%ISO和93.5%,基本符合壁纸原纸的质量要求。 The effect of addition of cationic starch (CS), combination of cationic starch and anion polyacrylamide (APAM), precipitated calcium carbonate (PCC) and alkyl ketene dimer (AKD) on the retention of PCC, cationic demand (CD) of white water and paper properties were studied. The results indicated that the retention of PCC could be increased and the CD value could be decreased due to the addition of CS or combination of CS and APAM. The opacity and brightness could be increased under the addition of PCC. The addition of AKD could increase the water-resistance dramatically of base-paper of wall paper. The properties of base-paper of wall paper could conform to the quality standard under the optimized addition of all additives and filler.