SYNTHESIS AND APPLICATION OF LIGNIN SIZING AGENT TAKING FROM POPLAR AUTO-CATALYZED ETHANOL PULPING PROCESS
In this paper, lignin sizing agent was synthesized in alkaline conditions taking lignin of poplar auto-catalyzed ethanol pulping and epoxypropyl dimethyl dodecyl ammonium chloride (EDDAC) as raw materials. The effect of the ratio of EDDAC monomer to lignin (fixed lignin amount: 2g), NaOH concentration, reaction temperature and time on the sizing results were studied by orthogonal experiments, and the synthesized product was analyzed through infrared spectrogram (IR). The optimum conditions were as follows: the ratio of EDDAC monomer to lignin 2:1; NaOH concentration 1.0mol / L; 70 ℃; 6h. The poplar auto-catalytic lignin was modified with ammonium chloride under above optimum conditions, the lignin sizing agent was added to handsheets, when the adding amount was 1.0％, the result of paper absorbency reduced 59.3g/m2.
poplar auto-catalyzed ethanol lignin epoxypropyl dimethyl dodecyl ammonium chloride (EDDAC) lignin sizing agent
Tao Li Zhou Jinghui Han Ying
Liaoning Province Key Laboratory of Pulp and Paper Engineering, Dalian Polytechnic University, Dalian,116034, China
国际会议
广州
英文
1491-1494
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）