location: Current position: Home >> Scientific Research >> Paper Publications

低聚壳聚糖种子包衣剂的制备及应用

Hits:

Indexed by:期刊论文

Date of Publication:2011-05-15

Journal:精细化工

Included Journals:PKU、ISTIC、CSCD

Volume:28

Issue:5

Page Number:479-483

ISSN No.:1003-5214

Key Words:种衣剂;共混膜;低聚壳聚糖;聚乙烯醇;医药与日化原料

Abstract:以天然高分子低聚壳聚糖为杀菌成分,聚乙烯醇和甘油为添加剂,制得一种可降解种衣剂.研究了低聚壳聚糖、甘油的质量分数,低聚壳聚糖脱乙酰度等条件对所制种衣剂共混膜的抗拉强度、伸长率及膜透气率等参数的影响.结果表明,在一定范围内共混膜的抗拉强度和伸长率随低聚壳聚糖和甘油质量分数的增大而提高,膜透气率随低聚壳聚糖质量分数的增大而降低,但随甘油质量分数的增大而提高.种衣剂制备的最佳配比为:w(低聚壳聚糖)=2%,w(聚乙烯醇)=4%,w(甘油)=0.5%,反应温度45℃,反应时间1 h.该种衣剂具有良好的抑菌、杀菌、促进种子发芽作用,与空白对照组相比,提高玉米种子发芽率21%;使用该种衣剂处理棉花种子,与常规拌种相比,每100 m2产量可增加4.8 kg.

Pre One:Copper-Catalyzed Direct Oxidative C-H Amination of Benzoxazoles with Formamides or Secondary Amines under Mild Conditions

Next One:A Recyclable and Ligand-free Copper Catalyzed Decarboxylative Trifluoromethylation of Aryliodides with Sodium Trifluoroacetate Using Ag2O as a Promoter,