第 41 卷第 5 期 |  | Vol. 41 No. 5 | 2011 年 10 月 | Oct 2011 |
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所屬欄目:農藥及中間體
500 g/L噻蟲(chóng)嗪懸浮種衣劑配方研究 |
曹 慧1,2,3,李 濤2,3,廖曉蘭1,聶思橋2,3,陳九星2,3,梁 驥2,3,劉昱霖2,3,廖力華2,3,4
(1. 湖南農業(yè)大學(xué) 生物安全科學(xué)技術(shù)學(xué)院,湖南 長(cháng)沙410014;2. 湖南化工研究院 國家農藥創(chuàng )制工程技術(shù)研究中心;3. 農用化學(xué)品湖南省重點(diǎn)實(shí)驗室,湖南 長(cháng)沙 410014;4. 長(cháng)沙理工大學(xué),湖南 長(cháng)沙410014) |
摘 要:采用濕式超微粉碎加工工藝,以懸浮率、熱貯穩定性、包衣均勻度和脫落率為標準,用流點(diǎn)法篩選合適的梳形高分子分散劑和類(lèi)雙子型分散劑,通過(guò)對不同潤濕分散劑、成膜劑以及增稠穩定劑和防凍劑的篩選,得到了500 g/L噻蟲(chóng)嗪懸浮種衣劑的優(yōu)化制劑配方為40%噻蟲(chóng)嗪,4%YUS-SC3,2%YUS-WG5,1%YUS-WG4,2%尿素,0.1%黃原膠,0.5%硅酸鎂鋁,0.1%消泡劑,水余量。經(jīng)實(shí)驗,其成膜性良好,脫落率<4%。包衣后的玉米種子,其發(fā)芽率97%,種衣劑對種子發(fā)芽率的影響<1%。 |
關(guān)鍵詞:噻蟲(chóng)嗪,高分子分散劑,懸浮種衣劑,成膜劑,穩定性 |
中圖分類(lèi)號:S482.99 文獻標識碼:B 文章編號:1009-9212(2011)05-0017-04 |
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Research on the Formulation of Thiamethoxam 500 g/L Flowable Concentrate for Seed Coating |
CAO Hui,LI Tao,LIAO Xiao-lan,NIE Si-qiao,CHEN Jiu-xing,LIANG Ji,LIU Yu-lin,LIAO Li-hua
(1. Hunan Agricultural University Biological Safety Institute of science and technology,Changsha 410014,China;2. National Engineering Research Center for Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410014,China;3. Hunan Province Key Laboratory for Agrochemicals,Changsha 410014,China;4. Institutes of Technology of Changsha,Changsha 410014,China) |
Abstract:The formulation of thiamethoxam 500 g/L flowable concentrate for seed coating was developed by wet milling method targeting on the suspension rate(≥90%),heat storage stability,coating equable extent and expulsion rate. The adjuvants in the formulation including wetting-dispersing agents,anti-freezing agents,thickening agents and membrane agents were screened and an optimized formulation was obtained consisting 40% of the thiamethoxam,7% of the dispersing agent,0.6% of the thickening agent,2% of the antifreezing agent and 0.1% of the defoaming agent. This formulation showed excellent film forming ability and low coating failure(<4%). The germination rate of the treated corn seeds was 97%. |
Key words:thiamethoxam;polymer surfactant;the flowable concentrate for seed coating;membrane agent;stability |
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作者簡(jiǎn)介:曹 慧(1984-),女,湖南益陽(yáng)人,碩士研究生,主要從事農藥劑型加工原理研究。
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聯(lián) 系 人:李 濤,工程師,碩士,研究方向:農藥制劑研究。(E-mail:dazuili2003@126.com)
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收稿日期:2011-10-17
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