摘要
以超微粉碎皮革固体废弃物得到的超微皮革粉体为主要原料,先后用马来酸酐(MAH)、丙烯酸(AA)对其进行表面改性,得到了性能稳定的超微皮革粉体悬浮液。通过4因素3水平正交试验,分别以接枝率为指标探讨了MAH、AA改性超微皮革粉体的条件,得出最佳改性方案:在超微皮革粉体的N,N-二甲基甲酰胺(DMF)溶液中,加入50%(以超微皮革粉体质量计)的MAH,80℃恒温反应3h,得到改性产品Ⅰ,经过滤、水洗后以适量蒸馏水分散,以2%过硫酸铵(APS)溶液(以单体质量计)为引发剂,加入150%(以改性后超微皮革粉体质量计)的AA,温度为75℃,反应5h,得到最终改性产品。通过产品的红外光谱(FTIR)表征,表明接枝共聚反应的发生。
Stable leather superfine powder suspension was got by superfine powder of leather solid wastes, which was succes sively modified by maleic anhydride （MAH） and acrylic acid （AA）. The best MAH, AA modifying conditions which both with grafting ratio as index were discussed through orthogonal test according L9 （3^4） factor levels, and as follows： modified products 1 is got with the total amount of MAH account for 50% of the amount weight of leather superfine powder at 80℃ for 3 hours in the solution of N,N dimethyl formamide （DMF）. The products Ⅰ is filtered,washed with water and then some distilled water is put in. The final product is got by adding AA whose amount is 150% of the amount weight of products Ⅰ ,ammonium persulfate （APS） whose amount is 2% of the weight of monomer as the initiator, and the reaction temperature is 75℃ for 5hours. The prod uct is characterized by infrared spectroscopy （IR） . The results show that graft copolymerization reaction has occurred.
出处
《中国皮革》
CAS
北大核心
2011年第9期28-31,共4页
China Leather
基金
国家自然科学基金项目(20876167)
关键词
超微皮革粉体
马来酸酐
丙烯酸
表面改性
leather superfine powder
maleic anhydride
acrylic acid
surface modification
