中文摘要：

采用3种合成聚合物（PDADMAC、PVAm和PNVF）分别对TiO_2进行改性,并用球磨机进行机械研磨,将改性后的TiO_2作为填料用于装饰原纸的抄造中,探究了不同改性剂用量下获得的改性TiO2对加填后装饰原纸主要性能的影响。结果表明：改性剂PDADMAC用量为2.5%进行TiO_2改性时,与未改性TiO_2加填纸相比,改性TiO_2加填纸的抗张指数和填料留着率分别提高了21.0%和9.5%;PVAm用量为2.0%时,改性TiO_2加填纸的抗张指数和填料留着率比未改性TiO_2加填纸分别提高了24.7%和5.5%;PNVF用量为1.5%时,改性TiO2加填纸强度性能和填料留着情况较优。

英文摘要：

Synthetic polymer PDADMAC,PVAm and PNVF were used to modify TiO_2 through ball-milling and the effect of polymer amount on properties of paper using the modified TiO_2 as filler was studied. The results showed that when the dosage of PDADMAC was 2. 5%,tensile index of the paper and filler retention increased by 21. 0% and 9. 5% respectively; when PVAm dosage was 2. 0%,tensile index and filler retention rose by 24. 7% and 5. 5% respectively; when PNVF amount ranged from 0. 5% to 1. 5%,better tensile strength was achieved,while its dosage was within the scope of 2. 0% ~ 2. 5%,better filler retention was obtained. When the amount of modifier agent was 0. 5%,tensile index improved by 10. 7%,and when the dosage was 2. 5%,filler retention increased by 8. 3%. PNVF dosage of 1. 5%was preferable under overall consideration.