Study On Effect Of Naphthalenesulfonate Surfactants To Water Dispersible Granule

Since the 1990s, the market of pesticide has been more furious and the consciousness of environment protection of people has been stronger than before, so that we need more charge to empolder a new pesticide especially the charge of evaluation of virulence and environment that is from 18% in 1975 to 31.3% in 1993 in all charge. We must cost 1500 million dollars and spent about 10 years to gain a merchandise of pesticide from 2500 compounds. So we can improve the pesticide formulation to solve the problems in pesticide exploitation.WDG(water dispersible granule) is a new particle formulation in the 1980s mad on the base of suspending agent and wettable powder which conquers a lot of problems that the powder of wettable powder pollutes environment and the stabilization of physical chemistry characters of suspending agent is not very good. The WG that is grain, equality and velvet on granularity, not felt in high temperature and high press, more availability portion, stabilization for physical chemistry characters adapts to lots kinds of pesticide especially that is not steady in water, so WG has a lot of advantages and is rivalrousness in all pesticide formulation.Pesticide Adjuvants was the key action in made and used the Water Dispersible Granule. Pesticide Adjuvants in Water Dispersible Granule include dispersant, wetting agent, disintegrating agent and agglomerant, especially the dispersant and wetting agent was the key factor the technology and quality about Water Dispersible Granule. Along with the people require entironment more and more higher, frequently-used dispersant con not satisfy the Water Dispersible Granule capability,s needs. The specific surfactant, larger molecular weight, high surface-active and friendly environment are the major developing trends of surfactants in the future. But the bulk of dispersant come from the overseas company, domestic dispersant develop slowly, the primary dispersant used also the alkane sulfonate, Dispersing Agent NNO and Maracel C, there are all be used in wettable powder. A few new specific surfactant was used in Water Dispersible Granule is the head obstacle to develop good quality Water Dispersible Granule. Depend on National Science and Technology Pillar Program, our country exploit the special dispersant GY-JZH-A, GY-JZH-B, DC01,DC02 and DC04, the GY-JZH-A belong to larger molecular Graft sulfosalt dispersant, GY-JZH-B belong to colophony larger molecular Graft carboxylate dispersant, DC01,DC02 and DC04 belong to larger molecular carboxylate dispersant, the specific surfactant, larger molecular weight, high surface-active and friendly environment are accord with the major developing trends of surfactants in the future. By way of definitude this new Pesticide Adjuvants foreground apply in Water Dispersible Granule, this text get across to preparation of the 75% tricyclazole Water Dispersible Granule and 75% carbendazim Water Dispersible Granule, saw about the new Pesticide Adjuvants mix with other wetting agent, determine physical and chemical guide line, prescription and compared data were supplied to the apply of special and novel adjuvants in Water Dispersible Granule.