收获期油菜茎秆表面浸润特性研究  

Wetting Property of Rapeseed(Brassica napus L.) Stalk Surface

作　　者：马征[1] 李耀明[1] 徐立章[1] 

机构地区：[1]江苏大学现代农业装备与技术教育部重点实验室,镇江212013

出　　处：《农业机械学报》2014年第6期98-103,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：'十二五'国家科技支撑计划资助项目(2010BAD01B06);江苏省高校自然科学研究资助项目(11KJA460002);江苏省自然科学基金资助项目(BK2011469);江苏高校优势学科建设工程资助项目(苏财教﹝2011﹞8号);江苏省2012年度普通高校研究生科研创新计划资助项目(CXLX12_0624)

摘　　要：为获得油菜茎秆表面的浸润特性,采用CAM101型接触角测量仪对收获期油菜(甘蓝型)茎秆表面与二次蒸馏水和过滤菜油之间的接触角进行了测定,并以油菜品种、收获日期、测试部位和茎秆表面粉体为因素对测定结果进行了对比分析。结果表明:油菜茎秆表面与过滤菜油、二次蒸馏水之间的接触角随测定部位离茎秆根部距离的增大而近似线性增大;茎秆表面的粉体使油菜茎秆表面呈现超疏水特性;油菜品种和收获日期对茎秆表面接触角有一定影响但无明确规律。To obtain wetting property of rapeseed （Brassica napus L. ） stalk surface, a CAM101 type contact angle tester was used to test the contact angle between rape stalk surface and twice distilled water ＆ filtered rapeseed oil. Comparative analysis was made to the test on which rape variety, harvest date, test position and powder on rape stalk surface were introduced as factors. The results showed that the contact angle between rape stalk＇ s surface and twice distilled water ＆ filtered rapeseed oil approximately increased linearly along with the increase of distance between test position and stalk root, and the powder on rape stalk surface made it a superhydrophobic surface. It was also shown that rape variety and harvest date had an uncertain influence on the contact angle between rape stalk surface and twice distilled water ＆ filtered rapeseed oil.

关 键 词：油菜 茎秆 浸润特性 清选 联合收获机 

分 类 号：S225.99[农业科学—农业机械化工程] S313[农业科学—农业工程]