CAJ | 학술논문

以木质素两性表面活性剂二甲基-正丁基-磺化木质素基氯化铵( DBSLAC)为改性剂,钠基膨润土为原料,制备了DBSLAC改性膨润土( L-Bt)。以啶虫脒为药物释放的对象、改性膨润土作为释放的主要载体,利用浸渍负载的方法制备了啶虫脒缓释剂,对制备条件进行了优化,并研究其缓释性能。通过FT-IR表征了样品结构,采用XRD分析了晶体层间距。结果表明：DBSLAC已成功插入膨润土层间,使其层间距增大。啶虫脒缓释剂制备最佳工艺条件为改性膨润土为L-1.2Bt、投加量0.02 g、负载时间6 h、啶虫脒初始质量浓度500 mg/L、溶液 pH 值6,制得的缓释剂的最大负载量为333 mg/g。通过水溶缓释实验探究了药水比例和温度对载药L-1.2Bt的累积释药率的影响,结果表明,累计释药率随水的比例的增加、温度的升高而逐渐上升,最后趋于稳定。
이목질소량성표면활성제이갑기-정정기-광화목질소기록화안( DBSLAC)위개성제,납기팽윤토위원료,제비료DBSLAC개성팽윤토( L-Bt)。이정충미위약물석방적대상、개성팽윤토작위석방적주요재체,이용침지부재적방법제비료정충미완석제,대제비조건진행료우화,병연구기완석성능。통과FT-IR표정료양품결구,채용XRD분석료정체층간거。결과표명：DBSLAC이성공삽입팽윤토층간,사기층간거증대。정충미완석제제비최가공예조건위개성팽윤토위L-1.2Bt、투가량0.02 g、부재시간6 h、정충미초시질량농도500 mg/L、용액 pH 치6,제득적완석제적최대부재량위333 mg/g。통과수용완석실험탐구료약수비례화온도대재약L-1.2Bt적루적석약솔적영향,결과표명,루계석약솔수수적비례적증가、온도적승고이축점상승,최후추우은정。
Lignin based amphoteric surfactant ( dimethyl-butyl-sulfonated lignin ammonium chloride, DBSLAC ) was used as modification agent to exchange the metal ions among the layers of sodium-based bentonite to prepare modified bentonite( L-Bt) . Acetaniprid was selected as the drug for slow-release and loaded on the modified bentonite by means of adsorption, and the slow-release performance was studied. The structure and basal spacing of modified bentonite were analyzed with by FT-IR and XRD. The results showed that the DBSLAC inserted the interlayer of modified bentonite successfully which caused the increase of interlayer distance. The optimum adsorption conditions for acetaniprid slow-release formulation were modified bentonite L-1. 2Bt, dosage 0. 02 g, adsorption time 6 h, initial mass concentration of acetaniprid 500 mg/L and pH value 6. Under these conditions the maximum loading capacity was 333 mg/g. The effects of potion proportion and temperature on the accumulative release rate of L-1. 2Bt were studied by water soluble method. With the increase of water content and temperature, the accumulative release rate increased gradually, and finally tended to be stable.