新型环保无铝内衬纸的开发及应用研究OA

In this study,a series of aluminum-free liner paper were prepared via different process routes.Their main quality parameters,in-cluding barrier properties,forming performance,microstructure,and chemical composition,were systematically analyzed.Furthermore,the correlation between the microstructural characteristics and macro-quality indicators of the liner paper was elucidated.It was found that the barrier properties of the aluminum-free liner paper prepared by the paper-paper composite process were higher(water vapor transmission rate of 5.27～24.93 g/(m2·d)),the formability was similar with the transfer aluminum coated liner paper(the horizontal and vertical formability dis-tribution ranges were 37°～49° and 41°～51°,respectively).In addition,the environmentally friendly liner paper prepared had less heavy met-al content(cadmium,chromium,and mercury were not detected,while arsenic content ranged from 0.67 to 1.58 μg/g),good biodegradabili-ty,and a lower carbon footprint throughout its entire life cycle(aluminum-free liner paper 3.59 kgCO2e/t,which lower than that of aluminum foil composite liner paper 6.98 kgCO2e/t).Through machine experiments,it was found that the prepared aluminum-free liner paper had good machine adaptability.