INVESTIGATION OF THE CHEMICAL STRUCTURE OF CARBOXYLATED AND CARBOXYMETHYLATED FIBERS FROM WASTE PAPER VIA XRD AND FTIR ANALYSIS
作者： Mohammad Talaeipour , Mohammad Mohkami
DOI: 10.15376/BIORES.6.2.1988-2003
关键词:
摘要: This paper describes preparation of carboxymethylated and carboxylated cellulosic fibers from waste paper. Chemical properties the product were distinguished by Fourier-transform infrared (FTIR) spectroscopy X-ray diffraction (XRD) spectral analysis. To produce crosslinked also to increase anionic surface charge fibers, maleic anhydride was used in three different batches; 0, 1%, 5%. The treatment condition for producing involved use isopropanol, sodium hydroxide solution, monochloroacetic acid. purified with 70/30 methanol/ water. Then one sample neutralized acetic acid other considered as a without having been neutralized. Effects these treatments evaluated FTIR XRD results analysis indicated that carboxyl methyl functional groups had increased just fibers. showed crystallinity cellulose decreased both
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