| 碱木质素交联PVA共混啶虫脒缓释薄膜的制备及性能 |
| |
| 引用本文： | 任世学,倪海月,田金玲,方桂珍.碱木质素交联PVA共混啶虫脒缓释薄膜的制备及性能[J].北京林业大学学报,2015,37(12):116-121. |
| |
| 作者姓名： | 任世学 倪海月 田金玲 方桂珍 |
| |
| 作者单位： | 东北林业大学材料科学与工程学院,生物质材料科学与技术教育部重点实验室;东北林业大学材料科学与工程学院,生物质材料科学与技术教育部重点实验室;东北林业大学材料科学与工程学院,生物质材料科学与技术教育部重点实验室;东北林业大学材料科学与工程学院,生物质材料科学与技术教育部重点实验室 |
| |
| 基金项目： | “十二五”国家科技支撑计划项目(2012BAD24B0403). |
| |
| 摘 要： | 以聚乙烯醇(PVA)和碱木质素为原料,交联剂为乙二醛,采用流延法制备碱木质素交联PVA共混啶虫脒缓释薄膜。采用傅里叶红外光谱方法对薄膜的化学结构进行分析,并表征薄膜的透气性和力学性能。通过单因素试验探索碱木质素与PVA质量比、乙二醛用量、啶虫脒用量对啶虫脒薄膜啶虫脒释放率的影响。结果表明:碱木质素与PVA成功交联,啶虫脒薄膜透氧气量增大,透二氧化碳量降低;啶虫脒薄膜的拉伸强度和断裂伸长率均比交联薄膜低。采用流延成膜法制备啶虫脒薄膜的最佳条件为碱木质素与PVA质量比3∶7、乙二醛用量1.5 mL、啶虫脒用量0.5 g,所制啶虫脒薄膜的啶虫脒释放率为31.8%。药水比例、温度对啶虫脒薄膜的释药快慢有一定影响。
|
| 关 键 词： | 木质素 聚乙烯醇 乙二醛 啶虫脒 缓释 |
| 收稿时间： | 2015-05-06 |
Preparation and performance of alkali lignin-PVA crosslinked blend slow-release acetaniprid film |
| |
| Institution: | College of Material Science and Technology, Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Harbin, Heilongjiang, 150040 , P. R. China. |
| |
| Abstract: | With alkali lignin and PVA as raw material, glyoxal as crosslinker,the alkali lignin-PVA crosslinked blend slow-release pesticide film was prepared by tape casting. The chemical structure of the film was analyzed by FT-IR. The gas permeability and mechanical properties were characterized. The results showed that alkali lignin had been crosslinked with PVA successfully. Compared with non-acetaniprid crosslinked film, oxygen transmission of the acetaniprid slow-release film increased, its carbon dioxide transmission reduced, and its tensile strength and elongation at break decreased. The optimum preparation conditions of acetaniprid slow-release film were the mass ratio of alkali lignin and PVA 3∶7, glyoxal dosage 1.5 mL, acetaniprid dosage 0.5 g, and the release amount of acetaniprid 31.8%. The water solving method indicated that there is certain effect of potion proportion and temperature on the cumulative release rate of acetaniprid-loaded film. |
| |
| Keywords: | lignin polyvinyl alcohol glyoxal acetaniprid slow release |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京林业大学学报》浏览原始摘要信息 |
| 点击此处可从《北京林业大学学报》下载免费的PDF全文 |
|
