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梳型碳氟高分子表面活性剂在硝磺草酮悬浮剂开发中的应用

张静静 曾梦蝶 宋凌云 寇俊杰 宋红健 刘玉秀 汪清民

张静静, 曾梦蝶, 宋凌云, 寇俊杰, 宋红健, 刘玉秀, 汪清民. 梳型碳氟高分子表面活性剂在硝磺草酮悬浮剂开发中的应用[J]. 农药学学报, 2022, 24(5): 1206-1214. doi: 10.16801/j.issn.1008-7303.2022.0076
引用本文: 张静静, 曾梦蝶, 宋凌云, 寇俊杰, 宋红健, 刘玉秀, 汪清民. 梳型碳氟高分子表面活性剂在硝磺草酮悬浮剂开发中的应用[J]. 农药学学报, 2022, 24(5): 1206-1214. doi: 10.16801/j.issn.1008-7303.2022.0076
ZHANG Jingjing, ZENG Mengdie, SONG Lingyun, KOU Junjie, SONG Hongjian, LIU Yuxiu, WANG Qingmin. Application of comb-type fluorocarbon polymer surfactant in the development of nitrosulfonone suspension concentrate[J]. Chinese Journal of Pesticide Science, 2022, 24(5): 1206-1214. doi: 10.16801/j.issn.1008-7303.2022.0076
Citation: ZHANG Jingjing, ZENG Mengdie, SONG Lingyun, KOU Junjie, SONG Hongjian, LIU Yuxiu, WANG Qingmin. Application of comb-type fluorocarbon polymer surfactant in the development of nitrosulfonone suspension concentrate[J]. Chinese Journal of Pesticide Science, 2022, 24(5): 1206-1214. doi: 10.16801/j.issn.1008-7303.2022.0076

梳型碳氟高分子表面活性剂在硝磺草酮悬浮剂开发中的应用

doi: 10.16801/j.issn.1008-7303.2022.0076
基金项目: 国家重点研发计划(2021YFD1700105);国家自然科学基金(22107084).
详细信息
    作者简介:

    张静静,chemzhangjingjing@163.com

    通讯作者:

    宋红健,songhongjian@nankai.edu.cn

    汪清民,wangqm@nankai.edu.cn

  • 中图分类号: TQ450.6

Application of comb-type fluorocarbon polymer surfactant in the development of nitrosulfonone suspension concentrate

Funds: the National Key R&D Program of China (2021YFD1700105); the National Natural Science Foundation of China (22107084).
  • 摘要: 为了探讨新型梳型含氟高分子表面活性剂在硝磺草酮悬浮剂开发中的应用,分别以该类表面活性剂 b1b9 为分散剂,以商品化分散剂YUS-FS3000为对照,分别制备了25%硝磺草酮悬浮剂,并测定了其悬浮率、粒径、入水分散性和稳定性等理化性质,室内除草活性,以及分散剂 b1 的添加量对以上性能的影响。结果表明:以 b1b9 为分散剂制备的硝磺草酮悬浮剂,在热贮、低温和冷冻3种条件下分别贮存14 d,其有效成分含量在25.52%~26.98%之间,3种条件下有效成分质量分数均为合格;同时,在3种贮存条件下的悬浮率均高于98.0%,且以 b1 为分散剂时,其分散性和稳定性优于以YUS-FS3000为分散剂;即使 b1 的添加量 (质量分数) 为2%时,在3种条件下分别贮存14 d,其有效成分含量在25.62%~26.01%之间,同时其悬浮率高于99.0%。3种25%硝磺草酮悬浮剂对稗草Echinochloa crusgalli的GR50值 (使杂草生物量降低50%的除草剂剂量) 分别为有效成分29.03 (YUS-FS3000)、15.70 ( b1 ) 和10.19 ( b9 ) g/hm2
  • 1  硝磺草酮的结构式

    1.  Structural formula of mesotrione

    图  1  1#、2# 和3# 在不同贮存温度下的粒径分布图

    Figure  1.  Particle size distribution of 1#, 2# and 3# at at different storage temperatures

    图  2  SEM表征的25%硝磺草酮悬浮剂颗粒在不同贮存温度下的形貌

    Figure  2.  The morphology of mesotrione 25% SC particles characterized by SEM at different storage temperatures

    图  3  由不同分散剂制备的25%硝磺草酮悬浮剂入水时的状态

    Figure  3.  The phenomenon of 25% mesotrione prepared by different dispersants entering water

    图  4  不同贮存温度条件下4#、5#、6# 和7# 粒径分布图

    Figure  4.  Particle size distribution of 4#, 5#, 6# and 7# at different temperatures

    表  1  Poly(PEGMEMAm-FMAn)x表面活性剂的组成以及GPC数据[20]

    Table  1.   Composition of surfactants and GPC data of Poly(PEGMEMAm-FMAn)x [20]

    样品
    Sample
    pqm/naMnb × 104/
    Daltons
    Mwc × 104/
    Daltons
    PDIdγmin/
    (mN/m)
    b1442/11.873.922.0937.19 ± 0.50
    b920121/31.472.501.7042.80 ± 0.26
    注:aPEGMEMA/FMA的摩尔进料比;b数均分子质量;c重均分子质量;d多分散指数, Mw/Mn。Note: aMolar feed ratio of PEGMEMA/FMA; bNumber-average molecular weight; cMass average molar mass; dPolydispersity, Mw/Mn.
    下载: 导出CSV

    表  2  25%硝磺草酮悬浮剂的剂型配方 (分散剂种类不同)

    Table  2.   Formulation of 25% mesotrione SC (Different dispersants)

    成分    
    Ingredient    
    1#2#3#
    97% 硝磺草酮原药 97% mesotrione TC/g 36.0 36.0 36.0
    分散剂 YUS-FS3000 Dispersant YUS-FS3000/g YUS-FS3000 (5.6) b1 (5.6) b9 (5.6)
    润湿剂 YUS-SXC Wetting agent YUS-SXC/g 1.4 1.4 1.4
    硅酸镁铝 Magnesium aluminum silicate/g 1.4 1.4 1.4
    1% 黄原胶 1% Xanthan gum/g 0.28 0.28 0.28
    防腐剂 S-30 Preservatives S-30/g 0.28 0.28 0.28
    乙二醇 Ethylene glycol/g 7.0 7.0 7.0
    消泡剂1501 Antifoamer 1501/g 0.4 0.4 0.4
    柠檬酸 Citric acid/g 0.7 0.7 0.7
    去离子水 Deionized water/g 86.94 86.94 86.94
    注:配方质量共140 g。Note: The mass of the formulation is 140 g.
    下载: 导出CSV

    表  3  25%硝磺草酮悬浮剂的剂型配方 (分散剂添加量不同)

    Table  3.   Formulation of 25% mesotrione SC (Different amounts of dispersant)

    成分    
    Ingredient    
    4#5#6#7#
    97% 硝磺草酮原药 97% mesotrione TC/g 25.8 25.8 25.8 25.8
    分散剂 b1 Dispersant b1/g 2.0 6.0 8.0 10.0
    润湿剂 YUS-SXC Wetting agent YUS-SXC/g 1.0 1.0 1.0 1.0
    硅酸镁铝 Magnesium aluminum silicate/g 1.0 1.0 1.0 1.0
    1% 黄原胶 1% Xanthan gum/g 0.2 0.2 0.2 0.2
    防腐剂S-30 Preservatives S-30/g 0.2 0.2 0.2 0.2
    乙二醇 Ethylene glycol/g 5.0 5.0 5.0 5.0
    消泡剂1501 Antifoamer 1501/g 0.25 0.25 0.25 0.25
    柠檬酸 Citric acid/g 0.5 0.5 0.5 0.5
    去离子水 Deionized water/g 64.05 60.05 58.05 56.05
    注:配方质量共100 g。Note: The mass of the formulation is 100 g.
    下载: 导出CSV

    表  4  25%硝磺草酮悬浮剂的理化参数 (1)

    Table  4.   Physicochemical parameters of 25% mesotrione SC (1)

    处理编号
    Number
    分散剂
    Dispersant
    贮存温度
    Storage temperature/℃
    粒径
    Particle size/μm
    有效成分质量分数
    Active ingredient content/%
    悬浮率
    Suspensibility/%
    D10D50D90
    1# YUS-FS3000 54 0.568 1.689 4.105 26.47 ± 0.09 98.4 ± 1.9
    0 0.642 1.821 4.235 26.22 ± 0.16 100 ± 0
    −18 0.661 1.858 4.172 26.25 ± 0.13 99.0 ± 1.4
    2# b1 54 0.514 1.917 4.794 26.73 ± 0.05 99.3 ± 0.4
    0 0.521 1.742 3.976 26.23 ± 0.13 99.9 ± 0.4
    −18 0.393 1.520 3.539 26.27 ± 0.11 100 ± 0
    3# b9 54 0.557 1.687 4.348 25.94 ± 0.04 98.8 ± 1.7
    0 0.597 1.615 4.206 25.52 ± 0.09 100 ± 0
    −18 0.558 1.886 5.069 25.54 ± 0.12 98.2 ± 0
    下载: 导出CSV

    表  5  25%硝磺草酮悬浮剂的理化参数 (2)

    Table  5.   Physicochemical parameters of 25% mesotrione SC (2)

    理化参数   
    Physicochemical parameter   
    处理编号
    Number
    1# (YUS-FS3000) 2# (b1) 3# (b9)
    pH 值 pH value 3.54 3.52 3.53
    泡沫持久性 Persistent foam 0 0 0
    分散性 Dispersity
    Good

    Good

    Good
    热贮稳定性
    Stability at elevated temperature
    合格
    Qualified
    合格
    Qualified
    合格
    Qualified
    冷冻稳定性 Stability at −18 ℃ 合格
    Qualified
    合格
    Qualified
    合格
    Qualified
    低温稳定性 Stability at 0 ℃ 合格
    Qualified
    合格
    Qualified
    合格
    Qualified
    下载: 导出CSV

    表  6  25%硝磺草酮悬浮剂1#~3# 对稗草的除草活性

    Table  6.   Herbicidal activity against Echinochloa crusgalli (L.) Beauv of 25% mesotrione SC (1#-3#)

    处理编号
    Number
    分散剂类别
    Dispersant
    GR50 值 (有效成分)
    GR50 value (a.i.)/(g/hm2)
    1#YUS-FS300029.03 ± 0.12
    2#b115.70 ± 0.05
    3#b910.19 ± 0.15
    下载: 导出CSV

    表  7  25%硝磺草酮悬浮剂的理化参数 (3)

    Table  7.   Physicochemical parameters of 25% mesotrione SC (3)

    处理编号
    Number
    分散剂质量分数
    Dispersant amount/%
    贮存温度
    Storage temperature/℃
    粒径
    Particle size/μm
    有效成分质量分数
    Active ingredient content/%
    悬浮率
    Suspensibility/%
    D10D50D90
    4#2540.3551.7634.00725.98 ± 0.2199.9 ± 0.1
    00.5261.4773.72626.01 ± 0.07100 ± 0
    −180.3961.6074.01025.62 ± 0.2399.7 ± 0.4
    2#4540.5142.9175.79426.73 ± 0.0599.3 ± 0.4
    00.5211.7423.97626.23 ± 0.1399.9 ± 0.5
    −180.3931.5203.53926.27 ± 0.11100 ± 0
    5#6540.4172.5965.52126.38 ± 0.2299.5 ± 0.8
    00.4051.4213.34926.07 ± 0.17100 ± 0
    −180.4091.3983.59825.84 ± 0.3099.0 ± 1.2
    6#8540.6233.0476.63826.98 ± 0.1298.5 ± 0.5
    00.4381.3053.11226.25 ± 0.0199.7 ± 0.5
    −180.4091.3423.54026.13 ± 0.4099.0 ± 1.4
    7#10540.4393.0418.04026.89 ± 0.2299.2 ± 0.2
    00.4211.3123.35426.78 ± 0.16100 ± 0
    −180.4061.2652.90526.22 ± 0.1698.5 ± 0.2
    下载: 导出CSV

    表  8  25%硝磺草酮悬浮剂的理化参数 (4)

    Table  8.   Physicochemical parameters of 25% mesotrione SC (4)

    理化参数
    Physicochemical parameter
    处理编号 Number
    4#2#5#6#7#
    pH 值 pH value 3.64 3.52 3.64 3.62 3.64
    泡沫持久性 Persistent foam/mL 0 0 0 0 0
    分散性 Dispersity 良 Good 良 Good 良 Good 良 Good 良 Good
    热贮稳定性 Stability at elevated temperature 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified
    冷冻稳定性 Stability at −18 ℃ 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified
    低温稳定性 Stability at 0 ℃ 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified
    下载: 导出CSV

    表  9  分散剂b1不同添加量下25%硝磺草酮悬浮剂对稗草的除草活性

    Table  9.   Herbicidal activity against Echinochloa crusgalli (L.) Beauv of 25% mesotrione SC at different amounts of dispersant

    处理编号
    Number
    b1 质量分数
    Mass fraction of b1/%
    GR50 值 (有效成分)
    GR50 value (a.i.)/(g/hm2)
    4#213.28 ± 0.13
    2#415.70 ± 0.09
    5#68.17 ± 0.02
    6#836.34 ± 0.13
    7#1039.46 ± 0.19
    下载: 导出CSV
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  • 收稿日期:  2022-06-10
  • 录用日期:  2022-08-09
  • 网络出版日期:  2022-08-15
  • 刊出日期:  2022-10-10

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