Capsule suspension (cS)
Kev piav qhia
Capsule suspension (CS) yog formulation uas muaj active ingredient encapsulated los ntawm hluavtaws los yog ntuj polymer cov ntaub ntawv, thiab covmicrocapsules raug tshem tawm hauv lub sijhawm aqueous.
Cov txiaj ntsig
- Muab kev tso tawm tswj tau thiab muaj qhov cuam tshuam tsis tu ncua
- Tsawg toxicity, txo cov ntxhiab tsw thiab kev sib cuag toxicity, txhim khu kev ruaj ntseg ua hauj lwm
- Txo phytotoxicity
- Ua kom cov khoom ruaj khov thiab kev sib raug zoo hauv cov khoom sib xyaw tank
- 30-100% txo qis hauv kev siv cov kuab tshuaj organic, txo kev pheej hmoo ib puag ncig
Kev txwv
- Vim nws qeeb -tso tawm xwm, nws ceev- ua yeeb yam khoom raug txo qis thiab nws tsis haum rau kev siv ceev ceev- ua yeeb yam scenarios
Cov txheej txheem tshuaj
Hauv -situ polymerization
Nyob rau hauv -situ polymerization yog cov txheej txheem uas ib los yog ob tug dej-soluble monomers ntxiv rau lub aqueous theem, polymerization tshwm sim thiab yield polymer microparticles, polymers tso rau saum npoo ntawm cov khoom tseem ceeb los ua microcapsules.
Interfacial polymerization
Interfacial polymerization yog lwm txoj kev siv encapsulation. Nyob rau hauv cov txheej txheem no, reactive monomers los yog prepolymers yog yaj nyob rau hauv ob theem immiscible. Raws li kev tsim tawm los ntawm kev tawg, polymerization tshwm sim ntawm qhov sib cuam tshuam thiab ua rau muaj microcapsule tsim. Interfacial polymerization txoj kev xav tau ib qho monomer yog dej-soluble thiab lwm yam yog roj-soluble.
Characterization ntawm capsule suspension
| Yam khoom | Kev sim |
|
Microstructure |
Optical microscopy, SEM, TEM |
|
Particle loj faib |
TIAB SA 187 laser particle analyzer |
|
Cov khoom xyaw nquag |
kev ua haujlwm siab ua kua chromatograph |
|
Cov ntsiab lus encapsulated |
txoj kev lim |
|
Suspensibility |
TIAB SA 184 |
|
Tshaj tawm tus nqi |
txoj kev nyob rau hauv txoj kev loj hlob |
|
Stability ntawm qhov kub siab |
MT 46.3 14-hnub stability ntawm 54 degree |
|
khov / thaw stability |
Kev ntsuas khov / thaw ruaj khov yuav tsum voj voog cov qauv ntawm chav tsev kub (xws li . 20 ± 2℃) thiab -10 ± 2℃ntawm 18-teev-freeze/6-teev-melt cycles rau tag nrho 4 cycles |
Peb nyob nraum kev capsule suspension manufacturers thiab lwm tus neeg nyob hauv Suav teb, tshwj xeeb hauv kev muab cov khoom siv zoo thiab cov khoom siv ntxiv. Thov so assured mus yuav capsule suspension ntawm tus nqi sib tw los ntawm peb lub hoobkas.
