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以改性木质素磺酸钠GCL4-1作为分散剂,通过对润湿剂、崩解剂、助分散剂种类和用量以及GCL4-1用量的筛选,确定了80%烯酰吗啉WG的2种优选配方。2种水分散粒剂产品热贮前的悬浮率达95%以上,热贮后不低于88%,热贮前后的润湿时间均小于23s,崩解时间在50s以内。选用80%烯酰吗啉WG为对照产品,2种配方产品的应用性能与对照产品相近;悬浮液稳定性与对照产品相比,热贮前均较好且差别不大,热贮后则要优于后者,2h的沉淀层厚度及粒径仅为0.4mm和5μm左右。综合成本估算可知2种优选配方具有很好的性价比。
With modified sodium lignosulphonate GCL4-1 as dispersing agent, 80% of dimethomorph WG were determined by screening of wetting agent, disintegrant, co-dispersing agent, dosage and amount of GCL4-1. The best formula. The two kinds of water dispersible granule products had a suspension rate of more than 95% before heat storage, not less than 88% after heat storage, wetting time before and after heat storage less than 23s and disintegration time within 50s. When 80% dimethomorph WG was used as the control product, the application performance of the two formulations was similar to that of the control product. Compared with the control product, the stability of suspension was good and little difference before heat storage, but after heat storage Outperforms the latter, the thickness and particle size of the precipitate layer in 2h is only 0.4mm and 5μm. Comprehensive cost estimates show that two kinds of preferred formula has a good price.