The structure and properties of cellulose triacetate acetylation were determined by IR,1H-NMR,XRD,DSC and chemical analysis.
采用乙酸酐/乙酸/硫酸体系制备了三醋酸纤维素(CTA),运用IR,化学滴定,1H-NMR,X射线衍射,DSC等手段对产物的结构及性质进行了表征和测试。
The factors,including triphenyl phosphate(TPP) content,hydrolization time,the volume of water and catalyzer concentration,affecting degree of substitution(DS) of cellulose triacetate(CTA) in hydrolization are studied.
研究了增塑剂磷酸三苯酯(TPP)含量、含水量、催化剂的比例以及水解时间对三醋酸纤维素(CTA)水解产物取代度(DS)的影响。
With cellulose triacetate (CTA) as membrane material, thiophen sulfone as solvent, and polyethyleneglycol(PEG) with proper amount of other additives as multi-element pore-forming agent, a high performance hollow fiber nanofiltration (NF) membrane is prepared by gel-freezing method.
采用三醋酸纤维素 (CTA)为膜材料 ,环丁砜作溶剂 ,以聚乙二醇 (PEG)为主、加入适量其它添加剂组合成多元型致孔剂 ,通过冻胶法纺丝 ,制得中空纤维纳滤 (NF)膜 。
The measure of copper and iron content in three cellulose acetate membrane of the zinc-silver battery by using the AIR- C2H2 flame atomic- absorption spectroscopy and make synthetically consideration of the measuring conditions and factors were atuded.
运用空气-乙炔火焰原子吸收光谱法同时测定银锌电池三醋酸纤维素膜中铜铁含量,并对测定条件和干扰因素进行了综合分析 该测定方法具有很好的灵敏度,干扰少,选择性和重现性好等优点 测定样品铜铁含量的相对标准偏差均小于1。
The rapid growth of various LCD products provides the great opportunities to expand the applications of TAC film.
三醋酸纤维素薄膜已成为液晶显示器中偏光片的重要组件。