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一、“京2 B”系列膜剂的保鲜防病原理 “京2 B”系列膜剂包括“植物防病膜剂——“京2 B”、“京2 B”一号、“京2 B”二号、“京2 D”、“北京一号”。它们是由中国农业科学院农业气象研究室研制的保鲜防病膜剂。其主要成分是高分子成膜化合物。用于柑桔保鲜以“京2 B”一号、“京2 B”二号的效果较好。膜剂的保水防病机理不同于现今的涂料。 “京2 B”系列膜剂在分子结构上,有一定的亲水基团,靠氢链的作用,抓住一部分向空中散失的水分。膜剂喷散在湿润果表和水面上可自动形成连续均匀的薄膜,在果
First, the “Beijing 2 B” series of film Preventing disease principle “Beijing 2 B” series of film agents include “plant disease control agent -” Beijing 2 B “,” Beijing 2 B “ ”No. 2,“ Beijing 2 D ”,“ Beijing No. 1. These are by the Chinese Academy of Agricultural Sciences Institute of Agricultural Meteorology developed fresh film disease prevention and prevention. Its main component is the polymer film-forming compounds. ”Beijing 2 B“ on the 1st, ”Beijing 2 B“ on the 2nd effect is better.Fillers water and disease prevention mechanism is different from today’s coatings. ”Beijing 2 B" series of film in the molecular structure, have a certain pro Water groups, rely on the role of hydrogen chain, seize a part of the water lost to the air.Film spray in wet fruit table and water surface can automatically form a continuous uniform film, the fruit