CN115316381A - 一种高浓度种子包衣剂专用纳米色浆制备方法 - Google Patents

一种高浓度种子包衣剂专用纳米色浆制备方法 Download PDF

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CN115316381A
CN115316381A CN202211065190.6A CN202211065190A CN115316381A CN 115316381 A CN115316381 A CN 115316381A CN 202211065190 A CN202211065190 A CN 202211065190A CN 115316381 A CN115316381 A CN 115316381A
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匡民明
陆明
陆子菲
刘敏
陆楚安
郭宇航
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Abstract

本发明涉及种子包衣剂技术领域，且公开了一种高浓度种子包衣剂专用纳米色浆，利用己二酰氯交联壳聚糖和聚乙烯醇，交联后的壳聚糖成膜性更好，力学强度高，透气性好，稳定性优异，可以作为包衣剂基体，具有可生物降解、生物相容性高的优点，经过颜料进行着色，可以起到防伪标识、区分不同品种的种子等作用。

Description

一种高浓度种子包衣剂专用纳米色浆制备方法
技术领域
本发明涉及种子包衣剂技术领域，具体为一种高浓度种子包衣剂专用纳米色浆及制备方法。
背景技术
种子包衣剂在农业、林业种植领域有着广泛的应用，通常种子包衣剂有农药、化肥、抗菌剂等物质在种子的外表形成包覆层，可以起到促进种子发芽、幼苗生长和防治病虫害的作用，在种子包衣剂和种子表皮进行着色，可以起到防伪标识、区分不同品种的种子等作用。
壳聚糖具有良好的生物相容性和生物可降解性，其降解产物可以调节植物的生长，因此广泛应用在包衣剂等农林业，如《壳聚糖包衣对杂交水稻种子发芽和幼苗耐盐性的影响》，利用壳聚糖和脯氨酸对杂交水稻进行包衣处理，可以提高杂交水稻幼苗耐盐性，本发明旨在合成。
发明内容
（一）解决的技术问题
针对现有技术的不足，本发明提供了一种高浓度种子包衣剂专用纳米色浆及制备方法。
（二）技术方案
为实现上述目的，本发明提供以下技术方案：一种高浓度种子包衣剂专用纳米色浆，制备方法为以下步骤：
（1）将壳聚糖分散到N,N-二甲基甲酰胺中，然后加入聚乙烯醇，搅拌均匀后在冰浴下加入己二酰氯和三乙胺，搅拌进行反应。
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇。
（3）将壳聚糖交联聚乙烯醇、纤维素纳米晶、颜料、消泡剂加入到蒸馏水中，以500r/min将其分散混合均匀；然后在1000-1200 r/min高速下加入颜料，高速分散30-45 min，经过纳米机循环研磨8-12h，每隔0.5h用激光粒度分析仪检测，直到色浆的粒径达到200-500 nm的要求；将上述所得的初始颜料浆加入pH调节剂和防霉杀菌剂，然后真空脱泡和微孔过滤包装后，得到种子包衣剂专用纳米色浆。
优选的，所述（1）中以重量份数计壳聚糖的用量为100份、聚乙烯醇为30-80份、己二酰氯为5-20份、三乙胺为8-30份。
优选的，所述（1）中反应在室温下搅拌反应6-18 h。
优选的，所述（1）中以重量份数计壳聚糖交联聚乙烯醇的用量为100份、纤维素纳米晶为5-30份、颜料为20-30份。
（三）有益的技术效果
与现有技术相比，本发明具备以下有益技术效果：
该一种高浓度种子包衣剂专用纳米色浆，利用己二酰氯交联壳聚糖和聚乙烯醇，交联后的壳聚糖成膜性更好，力学强度高，透气性好，稳定性优异，可以作为包衣剂基体，具有可生物降解、生物相容性高的优点，经过颜料进行着色，可以起到防伪标识、区分不同品种的种子等作用，一方面颜料浓度越高，能降低添加量，降低色浆配方中其他物质对种子发芽率的影响，另外，纳米颜料颗粒在包衣剂中抗沉降性能好，表层光滑，减少大颗粒种子摩擦脱落的问题；最后，纳米色浆具有良好的色光饱和度，配合珠光粉使用后，色泽更加鲜艳，起到更好的警示作用。
具体实施方式
实施例1
（1）将重量份数计为100份壳聚糖分散到N,N-二甲基甲酰胺中，然后加入40份聚乙烯醇，搅拌均匀后在冰浴下加入15份己二酰氯和8份三乙胺，在室温下搅拌反应12 h。
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇。
（3）将重量份数为100份的壳聚糖交联聚乙烯醇、5份纤维素纳米晶、20份红颜料PR112、消泡剂加入到蒸馏水中，以500 r/min将其分散混合均匀；然后在1100 r/min高速下加入颜料，高速分散45 min，经过纳米机循环研磨12h，每隔0.5h用激光粒度分析仪检测，直到色浆的平均粒径达到500 nm的要求；将上述所得的初始颜料浆加入pH调节剂和防霉杀菌剂赤霉素，然后真空脱泡和微孔过滤包装后，得到种子包衣剂专用纳米色浆。
实施例2
（1）将重量份数计为100份壳聚糖分散到N,N-二甲基甲酰胺中，然后加入30份聚乙烯醇，搅拌均匀后在冰浴下加入5份己二酰氯和8份三乙胺，在室温下搅拌反应18 h。
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇。
（3）将重量份数为100份的壳聚糖交联聚乙烯醇、5份纤维素纳米晶、20份黄颜料PY1、消泡剂加入到蒸馏水中，以500 r/min将其分散混合均匀；然后在1200 r/min高速下加入颜料，高速分散45 min，经过纳米机循环研磨12h，每隔0.5h用激光粒度分析仪检测，直到色浆的粒径达到200 nm的要求；将上述所得的初始颜料浆加入pH调节剂和赤霉素，然后真空脱泡和微孔过滤包装后，得到种子包衣剂专用纳米色浆。
实施例3
（1）将重量份数计为100份壳聚糖分散到N,N-二甲基甲酰胺中，然后加入40份聚乙烯醇，搅拌均匀后在冰浴下加入8份己二酰氯和15份三乙胺，在室温下搅拌反应18 h。
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇。
（3）将重量份数为100份的壳聚糖交联聚乙烯醇、10份纤维素纳米晶、30份蓝颜色PB15:3、消泡剂加入到蒸馏水中，以500 r/min将其分散混合均匀；然后在1000 r/min高速下加入颜料，高速分散45 min，经过纳米机循环研磨8h，每隔0.5h用激光粒度分析仪检测，直到色浆的粒径达到500 nm的要求；将上述所得的初始颜料浆加入pH调节剂和赤霉素，然后真空脱泡和微孔过滤包装后，得到种子包衣剂专用纳米色浆。
实施例4
（1）将重量份数计为100份壳聚糖分散到N,N-二甲基甲酰胺中，然后加入55份聚乙烯醇，搅拌均匀后在冰浴下加入12份己二酰氯和18份三乙胺，在室温下搅拌反应6 h。
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇。
（3）将重量份数为100份的壳聚糖交联聚乙烯醇、5份纤维素纳米晶、25份绿颜料PG7、消泡剂加入到蒸馏水中，以500 r/min将其分散混合均匀；然后在1200 r/min高速下加入颜料，高速分散30 min，经过纳米机循环研磨12h，每隔0.5h用激光粒度分析仪检测，直到色浆的粒径达到500 nm的要求；将上述所得的初始颜料浆加入pH调节剂和赤霉素，然后真空脱泡和微孔过滤包装后，得到种子包衣剂专用纳米色浆。
实施例5
（1）将重量份数计为100份壳聚糖分散到N,N-二甲基甲酰胺中，然后加入60份聚乙烯醇，搅拌均匀后在冰浴下加入15份己二酰氯和24份三乙胺，在室温下搅拌反应12h。
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇。
（3）将重量份数为100份的壳聚糖交联聚乙烯醇、25份纤维素纳米晶、25份紫颜料PV3、消泡剂加入到蒸馏水中，以500 r/min将其分散混合均匀；然后在1000 r/min高速下加入颜料，高速分散45 min，经过纳米机循环研磨12h，每隔0.5h用激光粒度分析仪检测，直到色浆的粒径达到400 nm的要求；将上述所得的初始颜料浆加入pH调节剂和赤霉素，然后真空脱泡和微孔过滤包装后，得到种子包衣剂专用纳米色浆。
实施例6
（1）将重量份数计为100份壳聚糖分散到N,N-二甲基甲酰胺中，然后加入80份聚乙烯醇，搅拌均匀后在冰浴下加入20份己二酰氯和30份三乙胺，在室温下搅拌反应12 h。
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇。
（3）将重量份数为100份的壳聚糖交联聚乙烯醇、30份纤维素纳米晶、30份红颜料PR48、消泡剂加入到蒸馏水中，以500 r/min将其分散混合均匀；然后在1000 r/min高速下加入颜料，高速分散45 min，经过纳米机循环研磨8h，每隔0.5h用激光粒度分析仪检测，直到色浆的粒径达到500 nm的要求；将上述所得的初始颜料浆加入pH调节剂和赤霉素，然后真空脱泡和微孔过滤包装后，得到种子包衣剂专用纳米色浆。

Claims (4)

1.一种高浓度种子包衣剂专用纳米色浆，其特征在于：所述制备方法为以下步骤：
（1）将壳聚糖分散到N,N-二甲基甲酰胺中，然后加入聚乙烯醇，搅拌均匀后在冰浴下加入己二酰氯和三乙胺，搅拌进行反应；
（2）将上述反应溶液减压浓缩，并过滤溶剂，依次使用蒸馏水和丙酮洗涤，干燥后得到壳聚糖交联聚乙烯醇；
（3）将壳聚糖交联聚乙烯醇、纤维素纳米晶、颜料、消泡剂加入到蒸馏水中，以500 r/min将其分散混合均匀；然后在1000-1200 r/min高速下加入颜料，高速分散30-45 min，经过纳米机循环研磨8-12h，每隔0.5h用激光粒度分析仪检测，直到色浆的粒径达到200-500nm的要求；将上述所得的初始颜料浆加入pH调节剂和防霉杀菌剂，然后真空脱泡和微孔过滤包装后，得到所需纳米色浆，得到种子包衣剂专用纳米色浆。
2.根据权利要求1所述的一种高浓度种子包衣剂专用纳米色浆，其特征在于：所述（1）中以重量份数计壳聚糖的用量为100份、聚乙烯醇为30-80份、己二酰氯为5-20份、三乙胺为8-30份。
3.根据权利要求1所述的一种高浓度种子包衣剂专用纳米色浆，其特征在于：所述（1）中反应在室温下搅拌反应6-18 h。
4.根据权利要求1所述的一种高浓度种子包衣剂专用纳米色浆，其特征在于：所述（1）中以重量份数计壳聚糖交联聚乙烯醇的用量为100份、纤维素纳米晶为5-30份、颜料为20-30份。
CN202211065190.6A 2022-09-01 2022-09-01 一种高浓度种子包衣剂专用纳米色浆制备方法 Pending CN115316381A (zh)

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