摘要
将有机硅偶联剂改性后的纳米结晶纤维素(NCC)与水性聚氨酯(WPU)基材混合制成结构均匀的NCC/WPU复合材料,然后采用扫描电子显微镜(SEM)、傅立叶变换红外光谱仪(FT-IR)等对NCC/WPU复合材料进行表征并分析复合材料抗紫外光老化性能的改善效果。结果表明,改性NCC的添加导致WPU基材的耐黄变性能和耐磨性显著提高,用质量分数为1.5%的改性NCC制备所得的NCC/WPU复合材料在受到168 h的紫外辐射处理后其黄变程度减轻44.2%,磨损量下降63.6%。
The nanocrystalline cellulose （NCC） modified by organic silicon coupling agent was used to prepare the uniform composites with waterborne polyurethane （WPL）. The NCC/WPL composites were character-ized by scanning electron microscope （SEM） and Fourier transform infrared spectrometer （FT- IR）. The improve-ments of LV-aging resistance of the NCC/WPL composites were analyzed. The results showed that the anti-yellowing property and abrasion resistance of WPL substrate were enhanced by the addition of modified NCC signifi-cantly. The extent of yellowing （ 168h of LV irradiation） of the NCC/WPL composite with 1. 5 % modified NCC was reduced by 44. 2% and the abrasion loss of that composite was decreased by 63. 6%.
出处
《聚氨酯工业》
北大核心
2016年第5期14-17,共4页
Polyurethane Industry
基金
河南省高等学校重点科研项目(15A430019)
河南工程学院博士基金(D2015016)
关键词
纳米结晶纤维素
水性聚氨酯
抗紫外光老化
黄变
磨损量
nanocrystalline cellulose
waterborne polyurethane
LV -aging resistance
yellowing
abrasion loss
