CN103798246B - 苯醚甲环唑和嘧菌酯复配的农药悬浮剂 - Google Patents
苯醚甲环唑和嘧菌酯复配的农药悬浮剂 Download PDFInfo
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Abstract
本发明涉及一种苯醚甲环唑和嘧菌酯复配的农药悬浮剂,由下述重量百分比原料组成:苯醚甲环唑15-25%;嘧菌酯15-25%;表面活性剂8-12%;甘油5-7%;阿拉伯树胶0.05-0.15%;鲸蜡醇0.1-0.3%;苯甲酸钠0.01-0.03%;余量为水。本发明的苯醚甲环唑和嘧菌酯复配的农药悬浮剂,悬浮率高,产品性能稳定。可广泛用于西瓜、葡萄、蔬菜、花卉等各种作物的蔓枯病、炭疽病、白粉病、霜霉病、疫病等各种真菌性病害的防治,且有明显的营养作用。
Description
技术领域
本发明涉及一种苯醚甲环唑和嘧菌酯复配的农药悬浮剂。
背景技术
苯醚甲环唑,英文名称:Difenoconazole,CAS号:119446-68-3。苯醚甲环唑是三唑类杀菌剂中安全性比较高的,广泛应用于果树、蔬菜等作物,有效防治黑星病,黑痘病、白腐病、斑点落叶病、白粉病、褐斑病、锈病、条锈病、赤霉病等。
嘧菌酯,英文名称:Azoxystrobin,CAS:131860-33-8。是甲氧基丙烯酸酯(Strobilurin)类杀菌剂,高效、广谱,对几乎所有的真菌界(子囊菌亚门、担子菌亚门、鞭毛菌亚门和半知菌亚门)病害如白粉病、锈病、颖枯病、网斑病、霜霉病、稻瘟病等均有良好的活性。可用于茎叶喷雾、种子处理,也可进行土壤处理,主要用于谷物、水稻、花生、葡萄、马铃薯、果树、蔬菜、咖啡、草坪等。
农药悬浮剂是20世纪70年代发展的剂型,现已成为基本加工剂型之一。悬浮剂又称水悬浮剂、胶悬剂、浓缩悬浮剂,具有成本低,生产、贮运和使用安全等特点,而且容易与水混合,使用方便。
发明内容
为解决现有技术中存在的不足,本发明所要解决的技术问题是提供一种苯醚甲环唑和嘧菌酯复配的农药悬浮剂。具体通过下述技术方案得以实现:
苯醚甲环唑和嘧菌酯复配的农药悬浮剂,包括下述重量百分比的原料:苯醚甲环唑15-25%;嘧菌酯15-25%。
苯醚甲环唑和嘧菌酯复配的农药悬浮剂,由下述重量百分比原料组成:苯醚甲环唑15-25%;嘧菌酯15-25%;表面活性剂8-12%;甘油5-7%;阿拉伯树胶0.05-0.15%;鲸蜡醇0.1-0.3%;苯甲酸钠0.01-0.03%;余量为水。
所述表面活性剂为丁二酸二异辛酯磺酸钠和/或α-[三(苯基甲基)苯基]-ω-羟基聚(氧基-1,2-亚乙基)非离子表面活性剂。
所述表面活性剂,由40-60重量份丁二酸二异辛酯磺酸钠和40-60重量份α-[三(苯基甲基)苯基]-ω-羟基聚(氧基-1,2-亚乙基)非离子表面活性剂组成。
α-[三(苯基甲基)苯基]-ω-羟基聚(氧基-1,2-亚乙基)非离子表面活性剂,CAS:64422-66-8,分子式:(C2H4O)nC27H24O。丁二酸二异辛酯磺酸钠,又称:琥珀酸二异辛酯磺酸钠,CAS号:577-11-7。
根据实际需要还可以在配方中添加pH调节剂。
本发明的苯醚甲环唑和嘧菌酯复配的农药悬浮剂可以采用本领域通用的方法进行制备,一种是超微粉碎法,另一种是凝聚法。
具体的,所述超微粉碎法:
(1)根据配方把苯醚甲环唑、嘧菌酯、表面活性剂、甘油、阿拉伯树胶、鲸蜡醇、苯甲酸钠和水搅拌混合成浆状物,置于球磨机中粉碎。
(2)置于磨砂机进行超微粉碎,控制平均粒径2-4μm。
(3)置于均质机中均质,使粒子均匀化。
本发明的苯醚甲环唑和嘧菌酯复配的农药悬浮剂具有高悬浮率,长期贮存稳定。嘧菌酯可以抑制细胞线粒体的呼吸作用而且抗早衰,有增产功效,苯醚甲环唑能抑制细胞膜和细胞壁的合成,本发明兼具保护和治疗活性,并且非常适于抗性管理和病害综合治理。杀菌谱广,对子囊菌、担子菌、半知菌和卵菌引起的病害如白粉病、霜霉病、叶霉、锈病、疫病、稻瘟病、黑穗病、叶斑病和根、茎病害均有很好的效果。可广泛用于西瓜、葡萄、蔬菜、花卉等各种作物的蔓枯病、炭疽病、白粉病、霜霉病、疫病等各种真菌性病害的防治,且有明显的营养作用。
具体实施方式
实施例1
(1)根据配方把苯醚甲环唑、嘧菌酯、表面活性剂、甘油、阿拉伯树胶、鲸蜡醇、苯甲酸钠和水搅拌混合成浆状物,置于球磨机中粉碎。
(2)置于磨砂机进行超微粉碎,控制平均粒径2-4μm。
(3)置于均质机中均质,使粒子均匀化。
制得的悬浮剂,外观粘稠均相的液体,经马尔文激光粒度分布仪测定,其平均粒径(D50)为3.3μm。
表1:苯醚甲环唑和嘧菌酯复配的农药悬浮剂配方表单位:公斤
实施例2
按表1对应实施例2数据称取原料,按实施例1的方法进行制备。制得的悬浮剂,平均粒径(D50)为3.3μm。
实施例3
按表1对应实施例3数据称取原料,按实施例1的方法进行制备。制得的悬浮剂,平均粒径(D50)为3.3μm。
分别在室温贮存14天、54℃±2℃条件下高温贮存14天,采用《GB/T14825-2006农药悬浮率测定方法》测悬浮率,具体数据见下表2。当悬浮率>85%时,则认为该产品为合格品。
表2:农药悬浮率测定数据表单位:%
实施例1 | 实施例2 | 实施例3 | |
室温贮存14天后 | 95.9 | 95.1 | 94.3 |
高温贮存14天后 | 95.2 | 94.2 | 93.1 |
悬浮性是指分散的原药粒子在悬浮液中保持悬浮时间长短的能力,通常用悬浮率来表示。一个好的悬浮剂,应具有良好的储存稳定性,即较高的悬浮率。
本发明的苯醚甲环唑和嘧菌酯复配的农药悬浮剂,悬浮率高,展着性和渗透性好,产品性能稳定。
α-[三(苯基甲基)苯基]-ω-羟基聚(氧基-1,2-亚乙基)非离子表面活性剂主要用于抑制线切割加工中的锈蚀和电腐蚀,软化加工槽内的淤渣,在慢走丝线切割生产过程中用来作为防锈添加剂。现有技术中,未有将该原料用于农药试剂起到分散润湿作用的任何技术启示。在本发明中,开创性地将原本用于防锈添加剂的α-[三(苯基甲基)苯基]-ω-羟基聚(氧基-1,2-亚乙基)非离子表面活性剂转用于杀虫悬浮剂中,起到分散润湿作用。特别的,将丁二酸二异辛酯磺酸钠和α-[三(苯基甲基)苯基]-ω-羟基聚(氧基-1,2-亚乙基)非离子表面活性剂复配,协同增效,有效提高悬浮率。
Claims (1)
1.苯醚甲环唑和嘧菌酯复配的农药悬浮剂,其特征在于,由下述重量百分比原料组成:苯醚甲环唑15-25%;嘧菌酯15-25%;表面活性剂8-12%;甘油5-7%;阿拉伯树胶0.05-0.15%;鲸蜡醇0.1-0.3%;苯甲酸钠0.01-0.03%;余量为水;
所述表面活性剂由40-60重量份丁二酸二异辛酯磺酸钠和40-60重量份α-[三(苯基甲基)苯基]-ω-羟基聚(氧基-1,2-亚乙基)非离子表面活性剂组成。
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