Cov tshuaj tua kab feem ntau tuaj nyob rau hauv ntau hom tshuaj xws li emulsions, suspensions, thiab hmoov, thiab qee zaum sib txawv ntau npaum li cas ntawm cov tshuaj tib yam tuaj yeem pom.Yog li dab tsi yog qhov zoo thiab qhov tsis zoo ntawm cov tshuaj tua kab sib txawv, thiab dab tsi yuav tsum tau them sai sai rau thaum siv lawv?
1 、 Cov yam ntxwv ntawm kev tsim tshuaj tua kab
Cov tshuaj tua kab tsis tau ua tiav dhau los ua cov khoom siv raw, uas yuav tsum tau ua thiab siv cov khoom siv ntxiv.Daim ntawv ntau npaum ntawm cov tshuaj tua kab yog nyob ntawm thawj zaug ntawm nws cov khoom physicochemical, tshwj xeeb tshaj yog nws cov solubility thiab lub cev lub cev hauv dej thiab cov kuab tshuaj organic.
Txawm hais tias cov tshuaj tua kab tuaj yeem ua tiav rau hauv ntau hom kev siv tshuaj, hauv kev siv tswv yim, xav txog qhov tsim nyog, kev nyab xeeb, thiab kev siv nyiaj txiag siv tau, cov ntaub ntawv ntau npaum li cas tuaj yeem ua tiav rau cov tshuaj tua kab yog txwv.
2. Hom tshuaj tua kab formulations
①.Hmoov (DP)
Hmoov yog cov hmoov npaj nrog rau qee qhov kev ua tau zoo los ntawm kev sib xyaw, sib tsoo, thiab rov ua cov khoom siv raw, cov khoom ntim (los yog cov nqa khoom), thiab ib qho me me ntawm lwm cov additives.Cov khoom muaj txiaj ntsig zoo ntawm cov hmoov feem ntau yog qis dua 10%, thiab nws feem ntau tsis tas yuav tsum tau diluted thiab tuaj yeem siv ncaj qha rau cov tshuaj txau.Nws kuj tseem siv tau rau kev sib xyaw ntawm cov noob, kev npaj cov kab nuv ntses, cov av lom, thiab lwm yam. Qhov zoo thiab qhov tsis zoo: Tsis yog ib puag ncig zoo txaus, maj mam txo kev siv.
②.Granules (GR)
Granules yog xoob granular formulations ua los ntawm kev sib tov thiab granulating raw cov ntaub ntawv, nqa, thiab ib tug me me ntawm lwm yam additives.Cov ntsiab lus zoo ntawm cov formulation yog nyob nruab nrab ntawm 1% thiab 20%, thiab feem ntau yog siv rau cov tshuaj tsuag ncaj qha.Qhov zoo thiab qhov tsis zoo: Yooj yim rau kev sib kis, nyab xeeb thiab kav ntev.
③ .Watable hmoov (WP)
Wettable hmoov yog ib daim ntawv siv hmoov uas muaj cov khoom siv raw, cov khoom siv los yog cov nqa khoom, cov neeg ua haujlwm ntub dej, cov khoom tawg, thiab lwm cov neeg ua haujlwm pabcuam, thiab ua tiav cov txheej txheem ntawm kev ua kom zoo los ntawm kev sib xyaw thiab kev sib tsoo. ruaj khov thiab zoo dispersed ncua kev kawm ntawv rau tshuaj tsuag.Standard: 98% dhau los ntawm 325 mesh sieve, nrog lub sij hawm ntub dej ntawm 2 feeb ntawm lub teeb los nag thiab kev ncua ntawm ntau tshaj 60%.Qhov zoo thiab qhov tsis zoo: txuag cov kuab tshuaj organic, ua kom pom kev ua haujlwm zoo, thiab ua kom yooj yim ntim, khaws cia, thiab kev thauj mus los.
④ dej dispersible granules (WG)
Dej dispersible granules yog tsim los ntawm raw cov ntaub ntawv, wetting agents, dispersants, isolating agents, stabilizers, adhesives, fillers los yog nqa.Qhov zoo thiab qhov tsis zoo: muaj kev nyab xeeb, muaj txiaj ntsig zoo cov ntsiab lus, ntim me me, thiab siab ncua kev kawm.
⑤.Emulsion roj (EC)
emulsion yog ib yam thiab pob tshab oily kua uas muaj cov kev siv tshuaj, organic solvents, emulsifiers thiab lwm yam additives.Thaum siv, nws yog diluted rau hauv dej los tsim ib qho ruaj khov emulsion rau cov tshuaj tsuag.Cov ntsiab lus ntawm emulsifiable concentrate tuaj yeem nyob ntawm 1% mus rau 90%, feem ntau ntawm 20% mus rau 50%.Qhov zoo thiab qhov tsis zoo: Cov thev naus laus zis yog qhov paub tab, thiab tsis muaj sedimentation lossis stratification tom qab ntxiv dej.
Post lub sij hawm: Aug-30-2023