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›› 2011, Vol. 45 ›› Issue (4): 51-55.

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Effects of Natural Polymers Carriers on Pesticides Release Control:A Review

LU Chen-jun, SHEN Mei-feng, LI Jian-fa   

  1. Department of Chemistry, Shaoxing College of Arts and Science, Shaoxing 312000, China
  • Received:2011-04-01 Revised:1900-01-01 Online:2011-07-30 Published:2011-07-30

Abstract: Natural polymers such as cellulose, lignin and starch are resourceful and of good degradability. As the carriers of pesticides, they can control the release of active ingredients, so as to enhance the utilization efficiency of pesticides and reduce their pollution. When the natural polymers of single component were used as the carriers, the release rate of active ingredients was mainly influenced by the size of formulation particles and their crosslinking degree. A part of natural polymers may dissolve or swell during the release, which will make the release quicker, and change the release process. When clays or their modified products were used together with natural polymers to prepare composite carriers of pesticides, their structural advantages and different hydrophilicity or hydrophobicity will be completely utilized, and the release process of pesticides will be better regulated.

Key words: cellulose, lignin, pesticides, clay, controlled release