CAJ | 학술논문

以胍胶为主剂，经过氧化还原反应后在分子链上引入含有羧基的丙烯酸、含有磺酸基的2-丙烯酰胺-2-甲基丙磺酸（AMPS）和丙烯酰胺分子单体，通过自由基缩合反应合成出改性胍胶聚合物分散剂，通过红外光谱、热分析仪、流变仪及激光粒度仪对合成产物及水煤浆体系进行测试，改性胍胶聚合物分散剂在280℃开始逐级分解，热稳定性较好；在分散剂加量为0.4%，制浆浓度为64%时，水煤浆体系的表观粘度为760 mPa·s，水煤浆析水量较少、体系稳定。
이고효위주제，경과양화환원반응후재분자련상인입함유최기적병희산、함유광산기적2-병희선알-2-갑기병광산（AMPS）화병희선알분자단체，통과자유기축합반응합성출개성고효취합물분산제，통과홍외광보、열분석의、류변의급격광립도의대합성산물급수매장체계진행측시，개성고효취합물분산제재280℃개시축급분해，열은정성교호；재분산제가량위0.4%，제장농도위64%시，수매장체계적표관점도위760 mPa·s，수매장석수량교소、체계은정。
Modified guar gum dispersant was synthesized with guar gum as based agent, acrylic aid, AMPS and AM as modifying agents.The structure of the dispersant was characterized by means of Fourier transform infrared spectrometry (FTIR), thermal gravimetric analysis (TG).The properties of the coal-water slurry with the dispersant were measured by rheometer and zetasizer. The results show that modified guar gum dispersant starts to decompose at 280 ℃;the viscosity of the system is 760 mPa·s when the dispersant dosage is 0.4% and the pulp concentration is 64%;the condensate rate of the coal-water slurry is less, and the system is stable.