摘要
以稻草秸秆苯酚选择性液化物为原料,稻草秸秆苯酚液化采用100℃选择性液化的方式,在碱性条件下与甲醛、亚硫酸钠发生改性反应,制备木质素磺酸盐型分散染料分散剂。通过分散力、高温稳定性及研磨性进行性能测试,并采用红外光谱对其结构进行定性分析。考察了亚硫酸钠用量、甲醛用量、反应温度和反应时间对木质素磺酸盐型分散染料分散剂性能的影响,通过单因素和正交试验得出的改性反应的最佳工艺条件为:反应温度90℃,反应5h,亚硫酸钠用量5mmol/g,甲醛用量5mmol/g。此时的产品分散力为82.4%,高温稳定性达到130℃。
Lignosulfonate was synthesized with formaldehyde and sodium sulfite in alkaline conditions using the selective liquefaction of rice straw in phenol at 100 ℃. The performance of dye dispersant was tested by dispersing power, high temperature stability and abrasive while its structure was analyzed by FTIR. The optimal modified reaction conditions were obtained as reaction temperature 90 ℃, reaction time 5 h, the amount of sodium sulfite and formaldehyde 5 mmol/g respectively. The dispersing power was 82.4,% and high temperature stability was 130 ℃.
出处
《大连工业大学学报》
CAS
北大核心
2013年第4期258-262,共5页
Journal of Dalian Polytechnic University
基金
辽宁省教育厅科学研究计划资助项目(2009A076)
浙江理工大学重中之重学科开放基金项目(YR20111016)
关键词
稻草
选择性液化
分散剂
straw
selective liquefaction
dispersant