Gịnị bụ ngwa nke surfactants na pesticides?

N'ime ngwa ọgwụ pesticide, ojiji nke ihe na-arụ ọrụ na-adị ụkọ. Ọtụtụ usoro na-agụnye ịgwakọta ọgwụ mgbochi pesticides na adjuvants na ihe mgbaze iji kwalite nrụpụta ma belata ọnụ ahịa. Surfactants bụ isi ihe enyemaka na-ebuli arụmọrụ pesticide kacha mma ma na-ebelata mmefu, bụ isi site na emulsification, ịfụ ụfụfụ/imepụ ụfụfụ, mgbasa, na mmetụta wetting. Edepụtala nke ọma n'iji ha eme ihe n'ụdị ọgwụ pesticide. 

Surfactants na-eme ka esemokwu ihu dị n'etiti ihe ndị dị na emulsions, na-emepụta uniform na usoro mgbasa ozi kwụsiri ike. Nhazi ha nke amphiphilic-ijikọta hydrophilic na lipophilic otu-na-enyere aka mgbasa ozi na oghere mmiri mmanụ. Nke a na-ebelata esemokwu n'etiti ihu ma na-ebelata ike a chọrọ maka emulsion e guzobere, si otú ahụ na-eme ka nkwụsi ike.

Ịchụsa ihe ndị na-arụ ọrụ pesticide n'ime mmiri ka ụmụ irighiri ihe na-emepụta ihe na-arụpụta ọrụ dị elu ma e jiri ya tụnyere usoro ndị ọzọ. Emulsifiers na-emetụta nkwụsi ike nke emulsions pesticide ozugbo, nke n'aka nke ya na-ekpebi ịdị irè ha.

Nkwụsi ike na-adịgasị iche na nha droplet:

● Akụkụ <0.05 μm: Solubilized na mmiri, kwụsiri ike nke ukwuu.

● Akụkụ 0.05–1 μm: Agbazere nke ukwuu, kwụsiri ike.

● Akụkụ 1-10 μm: Mwepu akụkụ ma ọ bụ mmiri ozuzo na-agafe oge.

● Ihe dị iche iche> 10 μm: Akwụsịtụrụ na-ahụ anya, anaghị akwụsi ike nke ukwuu.

Ka usoro ihe eji egbu egbu na-etolite, organophosphates nke na-egbu egbu na-eji ihe ndị ọzọ dị mma, dị mma na nke na-adịghị egbu egbu dochie ya. Ogige heterocyclic-dị ka pyridine, pyrimidine, pyrazole, thiazole, na ihe ndị na-emepụta triazole-na-adịkarị dị ka ihe siri ike nwere obere solubility na ihe mgbaze nkịtị. Nke a na-achọ akwụkwọ akụkọ, arụmọrụ dị elu, emulsifiers dị ala na-egbu egbu maka nhazi ha.

China, onye ndu zuru ụwa ọnụ na mmepụta na oriri pesticide, kọrọ 2.083 nde tọn nke teknụzụ ọkwa pesticide mmepụta na 2018. Mmụba mmata gburugburu ebe obibi emeela ka ọchịchọ maka usoro nhazi dị elu. N'ihi ya, nyocha na itinye n'ọrụ nke eco-friendly, pesticides na-arụ ọrụ dị elu enwetawo ihe a ma ama. Surfactants dị elu, dị ka ihe ndị dị oke mkpa, na-arụ ọrụ dị mkpa n'ịkwalite teknụzụ ọgwụ na-adịgide adịgide.