EFFECTS OF DIFFERENT PREPARATION PROCEDURES ON THE SURFACE MORPHOLOGY AND OPTICAL PROPERTIES OF CELLULOSE NANOPAPERS
Cellulose nanopapers are flexible,transparent and sustainable materials that will gradually replace the traditional plastic materials in “green electronics.However,the process for producing cellulose nanopapers is too long and complicated,which also has great effects on the specific properties of nanopapers.In this paper,After TEMPO oxidation and high pressure homogeneous,Cellulose nanofibrils(CNFs)were successfully extracted from the soft-wood fibers which were pretreated by mechanical pretreatment.Then through casting and vacuum filtration methods,the cellulose nanofibrils were fabricated into cellulose nanopapers.The effects of different preparation procedures on the surface morphology,surface roughness,light transmittance and transmission haze of cellulose nanopapers were studied by environment scanning electron microscope(SEM),atomic force microscope(AFM),and UV/VIS/NIR Spectrophoto-meter.Compared with vacuum filtration,cellulose nanopapers produced by casting method had a much smoother surface(root-mean-square roughness of 10.6 nm)and better excellent optical properties: a high transmittance(89%)at 600 nm and a low haze(2.9%)at 550 nm.Therefore,the casting procedure is recommended for preparing high transparent and clear cellulose nanopapers.
Cellulsoe nanopapers Casting Vacuum filtration Transmission haze Surface morphology
Weisheng Yang Liang Jiao Hongqi Daiao
College of Light Industry Science and Engineering,Nanjing Forestry University Nanjing,210037,China
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-6
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）