作　　者： ; ;

机构地区： 天津科技大学

出　　处： 《中国造纸学报》 2009年第3期97-101,共5页

摘　　要： 热磨机械浆(TMP)造纸循环白水的溶解和胶体物质(DCS)中含有较多的树脂类物质,在造纸过程中会以多种形式沉积在设备表面,造成停机和纸质下降等树脂障碍问题。通过脂肪酶处理TMP模拟白水,利用甘油铜比色法和GC-MS分析等方法分析树脂类物质的降解情况。结果表明,经脂肪酶处理后DCS的阳离子需求量(CD值)减少20%左右。GC-MS分析脂肪酶处理后产物检测出脂肪酸和醇类物质,表明脂肪酶对树脂类物质具有明显的降解作用。 The dissolved and colloidal substances （DCS） in papermaking with TMP as main furnish contain certain amount of pitch species which can deposite on the surface of equipment, cause papermachine shut down and the quality of paper product decrease. Experiment results showed that treating the simulated white water with lipase could reduce the cationic demand by 20%. Cupric-glycerinate-colorimetric method and GC-MS were used for the analysis of degraded components caused by lipase treatment. Fat acid and alcohol species were identified by GC-MS analysis,which indicated that pitch species could be decomposed by lipase.

关 键 词： 热磨机械浆 造纸白水 溶解和胶体物质 树脂 脂肪酶

领　　域： [轻工技术与工程] [轻工技术与工程]