合成聚合物改性TiO2及对加填纸主要性能的影响

The Impact of Synthetic Polymer Modified TiO2 as Filler on Paper Properties

中文关键词:  改性TiO₂  合成聚合物  加填纸

Key Words:modified TiO2  synthetic polymer  filled paper

中文摘要:

      采用3种合成聚合物(PDADMAC、PVAm和PNVF)分别对TiO₂进行改性,并用球磨机进行机械研磨,将改性后的TiO₂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TiO₂改性时,与未改性TiO₂加填纸相比,改性TiO₂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TiO₂加填纸的抗张指数和填料留着率比未改性TiO₂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。

Abstract:

      Synthetic polymer PDADMAC, PVAm and PNVF were used to modify TiO2 through ball-milling and the effect of polymer amount on properties of paper using the modified TiO2 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.