TEMPO-oxidize nanocellulose (TONC) suspension has been obtained from total chlorine free (TCF) oil palm empty-fruit-bunches (OPEFB) pulp using 4-acetamido-TEMPO (2,2,6,6-tetramethyl piperidin-1-oxyl) mediated oxidation with sodium hypochlorite and sodium bromide in water at 25 °C and pH 10. TONC suspension with varied content from 0.5 to 6% (w/w) reinforced polyvinyl alcohol (PVA) polymer based nanocomposite films were prepared by the casting method. The structural interaction between the TONC and PVA was characterized by the Fourier transform infrared (FT-IR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). It was found that the 4% (w/w) TONC content reinforced nanocomposite exhibited the highest tensile strength and modulus with an increase of 122% and 291% respectively, compared to PVA while the elongation at break decreased about 42.7%. Thermal stability of PVA based nanocomposite films was improved after incorporation of TONC. Incorporation of TONC in PVA film increases its crystallinity due to strongly linking between the hydroxyl groups of materials however considerable decreases beyond 2 wt% loading are observed. TONC incorporation beyond 2 wt% also reduces the melting temperature peaks and enthalpy of nanocomposite films. FT-IR spectra, NMR and SEM indicate that there is interaction between the TONC and PVA.

使用4-乙酰氨基-TEMPO（2,2,6,6-四甲基哌啶-1-氧基）从总无氯（TCF）油棕空果束（OPEFB）纸浆中获得TEMPO氧化纳米纤维素（TONC）悬浮液）在25°C和pH 10的水中用次氯酸钠和溴化钠介导的氧化。TONC和PVA之间的结构相互作用通过傅里叶变换红外（FT-IR）光谱，核磁共振（NMR）光谱，X射线衍射（XRD）和扫描电子显微镜（SEM）进行表征。发现4％（w / w）的TONC含量增强的纳米复合材料表现出最高的拉伸强度和模量，分别增加了122％和291％。与PVA相比，断裂伸长率下降了约42.7％。掺入TONC后，可改善基于PVA的纳米复合膜的热稳定性。由于材料羟基之间的牢固连接，将TONC掺入PVA膜中可提高其结晶度，但观察到载量超过2 wt％时会明显下降。超过2 wt％的TONC掺入量还降低了纳米复合膜的熔融温度峰值和焓。FT-IR光谱，NMR和SEM表明TONC和PVA之间存在相互作用。由于材料羟基之间的牢固连接，将TONC掺入PVA膜可提高其结晶度，但观察到载量超过2 wt％时会明显下降。超过2 wt％的TONC掺入量还降低了纳米复合膜的熔融温度峰值和焓。FT-IR光谱，NMR和SEM表明TONC和PVA之间存在相互作用。由于材料羟基之间的牢固连接，将TONC掺入PVA膜中可提高其结晶度，但观察到载量超过2 wt％时会明显下降。超过2 wt％的TONC掺入量还降低了纳米复合膜的熔融温度峰值和焓。FT-IR光谱，NMR和SEM表明TONC和PVA之间存在相互作用。