| 改性木质素磺酸盐与黏结剂配伍的WG成粒性 |
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| 引用本文： | 刘磊,庞煜霞,欧阳新平,李晓娜,邱学青.改性木质素磺酸盐与黏结剂配伍的WG成粒性[J].农药,2011,50(10). |
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| 作者姓名： | 刘磊 庞煜霞 欧阳新平 李晓娜 邱学青 |
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| 作者单位： | 华南理工大学化学与化工学院广东省绿色化学产品技术重点实验室,广州,510640 |
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| 基金项目： | 国家科技支撑计划项目(2011BAE06B06-3); 广东省自然科学基金项目(8351064101000002); 广东省科技计划项目(2008B050100006、2010A080804020) |
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| 摘 要： | 目的]改性术质素磺酸钠GCL4-1是一种优良农药分散剂,但其用于水分散粒剂(WG)时成粒性较国外产品稍差.方法]将GCL4-1与6种农药常用黏结剂(淀粉、糊精、红糖、术糖、羟甲基纤维素钠、聚乙二醇)配伍后,测试WG的粒径分布及悬浮率、崩解性等性能.结果]当淀粉质量分数为5％时,WG粒径在0.45～0.9 mm范围的颗粒达49.5％,热贮前后悬浮率分别为89.61％、87.77％,崩解液放置2h后沉淀层厚度为0.614 mm,稳定性略差于Kinsperse 126作分散剂制备的WG.糊精最佳质量分数为3％,此时粒径在0.45～0.9 mm范围的颗粒达45.6％,热贮前后悬浮率分别为91.26％、89.53％,崩解液放置2 h后沉淀层厚度仅为0.508 mm,稳定性与Kinsperse 126作分散剂的WG相当.结论]淀粉和糊精与GCL4-1配伍使用能使WG具有较好的成粒性和优良的分散稳定性.
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| 关 键 词： | 改性木质素磺酸盐 水分散粒剂 成粒性 黏结剂 淀粉 糊精 |
Granulating Property of WG Using Modified Lignosulfonate Combined with Binders |
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| LIU Lei
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PANG Yu-xia
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OUYANG Xin-ping
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LI Xiao-na
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QIU Xue-qing.Granulating Property of WG Using Modified Lignosulfonate Combined with Binders[J].Pesticides,2011,50(10). |
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| Authors: | LIU Lei PANG Yu-xia OUYANG Xin-ping LI Xiao-na QIU Xue-qing |
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| Affiliation: | LIU Lei,PANG Yu-xia,OUYANG Xin-ping,LI Xiao-na,QIU Xue-qing(Guangdong Provincial Laboratory of Green Chemical Technology,School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Aims] Modified lignosulfonate GCL4-1 is a good pesticide dispersant,but when it is used in water-dispersible granule(WG),its granulating property is not so good as the foreign products.Methods] Combined with 6 kinds of binders(starch,dextrin,brown sugar,xylose,sodium hydroxymethyl cellulose and polyethylene glycol),the WGs added with GCL4-1 were tested by size distribution,suspension rates and disintegration.Results] After adding 5% starch,the particle percentage of 0.45-0.9 mm was up to 49.5%.Before and... |
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| Keywords: | modified lignosulfonate water-dispersible granules(WG) granulating property binder starch dextrin |
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