CAJ | 학술논문

以竹浆造纸黑液为原料制备了竹浆木质素高效分散剂，并应用于酚水水煤浆的制浆；研究了竹浆木质素高效分散剂的相对分子质量和磺化度对水煤浆浆体流动性的影响，并进一步研究了助剂种类及掺量、分散剂掺量和制浆温度对酚水水煤浆制浆性能和稳定性能的影响．结果表明：具有中等相对分子质量和中等磺化度的分散剂制浆性能较优，分散降黏作用优于FDN；三聚磷酸钠与木质素分散剂复合使用可以降低水煤浆浆体的表观黏度，但加入量过高降黏效果变差，加入量为15％时，分散降黏效能最好；随着木质素分散剂掺量的增大，酚水水煤浆的表观黏度不断减小；随着制浆温度的升高，酚水水煤浆的表观黏度先减小后增大，在温度为55℃时，分散剂的降黏效果最优，浆体的表观黏度最小；木质素分散剂掺量为0．75％时，其分散降黏性能最优，此时水煤浆的稳定性最好．
이죽장조지흑액위원료제비료죽장목질소고효분산제，병응용우분수수매장적제장；연구료죽장목질소고효분산제적상대분자질량화광화도대수매장장체류동성적영향，병진일보연구료조제충류급참량、분산제참량화제장온도대분수수매장제장성능화은정성능적영향．결과표명：구유중등상대분자질량화중등광화도적분산제제장성능교우，분산강점작용우우FDN；삼취린산납여목질소분산제복합사용가이강저수매장장체적표관점도，단가입량과고강점효과변차，가입량위15％시，분산강점효능최호；수착목질소분산제참량적증대，분수수매장적표관점도불단감소；수착제장온도적승고，분수수매장적표관점도선감소후증대，재온도위55℃시，분산제적강점효과최우，장체적표관점도최소；목질소분산제참량위0．75％시，기분산강점성능최우，차시수매장적은정성최호．
A series of high-efficiency bamboo lignin-based dispersants for the pulping of coal phenol-water slurry were prepared by using bamboo black liquor as the main raw material.Then,the influences of relative molecular mass and sulfonation degree of the dispersant on the slurry fluidity were investigated.Furthermore,the effects of the type and dosage of additive,the dispersant do-sage and the pulping temperature on the pulping performance and the stability properties of coal phenol-water slurry were discussed.The results indicate that (1 )as compared with FDN,the dispersant with moderate sulfonation degree and medium relative molecular mass possesses better pulping performance in reducing the viscosity of coal phenol-water slurry;(2)the combination of sodium tripolyphosphate and the dispersant may reduce the apparent viscosity of the slurry and 15% is a suitable dosage of sodium tri-polyphosphate;(3 )the apparent viscosity of the slurry continuously decreases with the increase of dispersant do-sage;(4)with the increase of pulping temperature,the apparent viscosity of the slurry first decreases and then in-creases,with its minimum occurring at 55℃;and (5 )coal phenol-water slurry shows best stability properties at the optimal dispersant dosage of 0.75%.