CAJ | 학술논문

以腐殖酸（HA）、烯丙基磺酸钠（SAS）、二甲基二烯丙基氯化铵（DMDAAC）等为原料，以过硫酸钾为引发剂，采用水溶液自由基聚合原理，制备出了一种新型两性离子型腐殖酸接枝共聚物水煤浆分散剂———HA‐SAS‐DMDAAC（HSC）．通过红外光谱、热重分析和差示扫描量热分析等对聚合物的结构及热力学性能进行了表征和分析，并考察了阳离子单体用量、引发剂用量、反应温度等对水煤浆性能的影响．优化的工艺条件为：m（DMDAAC）∶ m（SAS）∶ m （HA）＝0．3∶1．0∶2．0，引发剂用量7．0wt％，反应温度80℃．结果表明，两性离子型腐殖酸接枝共聚物分散剂（HSC）比阴离子型腐殖酸接枝共聚物分散剂（HS）具有更好的降黏效果，并明显增强了浆体的静态稳定性．
이부식산（HA）、희병기광산납（SAS）、이갑기이희병기록화안（DMDAAC）등위원료，이과류산갑위인발제，채용수용액자유기취합원리，제비출료일충신형량성리자형부식산접지공취물수매장분산제———HA‐SAS‐DMDAAC（HSC）．통과홍외광보、열중분석화차시소묘량열분석등대취합물적결구급열역학성능진행료표정화분석，병고찰료양리자단체용량、인발제용량、반응온도등대수매장성능적영향．우화적공예조건위：m（DMDAAC）∶ m（SAS）∶ m （HA）＝0．3∶1．0∶2．0，인발제용량7．0wt％，반응온도80℃．결과표명，량성리자형부식산접지공취물분산제（HSC）비음리자형부식산접지공취물분산제（HS）구유경호적강점효과，병명현증강료장체적정태은정성．
A new type of zwitterionic humic acidbased graft copolymer dispersant (HSC) for the coal water slurry (CWS) was synthesized by aqueous solution polymerization with humic acid (HA) ,sodium allyl sulfonate (SAS) ,diallyl dimethyl ammonium chloride (DMDAAC) . HSC was characterized by the FT‐IR ,TG and DSC .The effects of DMDAAC dosage ,initiator amount and reaction temperature on the performance of CWS was discussed .The optimized process conditions are as follows :m(DMDAAC)∶ m(SAS)∶ m(HA)=0 .3∶1 .0∶2 .0 ,a‐mount of initiator 7 .0 wt% ,and reaction temperature 80 ℃ .The CWS performance investi‐gation show s that HSC has better ability in reducing the slurry viscosity than anionic humic acid‐based graft copolymer dispersant (HS) ,and enforcing the CWS stability .