Khoom Taw Qhia
PVP yog cov khoom siv tshuaj lom neeg zoo tshaj plaws, siv dav hauv cov nplaum, tshuaj, tshuaj pleev ib ce thiab kev lag luam. Nws zoo adhesion thiab solubility ua rau nws muaj ib tug tseem ceeb txoj hauj lwm thiab muaj nuj nqis nyob rau hauv niaj hnub ntau lawm thiab technology.
Chemical Nature
Polyvinylpyrrolidone (PVP)
Qhov tshwm sim
Cov tshuaj aqueous yog ntshiab thiab tsis muaj xim rau me ntsis yellowish.
Cov khoom siv hmoov yog dawb.
tsw
Me ntsis tus cwj pwm tsw.
Technical Data
| K tus nqi* (1% hauv dej) |
Khoom cov ntsiab lus hauv %* |
Brookfield Viscosity hauv mPa·s ntawm 23 degree / hauv dej hauv % * |
tus nqi pH ntawm 10% dej daws* |
Cov seem NVP hauv ppm * |
|
| LUVITEC K 30 hmoov | 27 – 33 | 95 – 100 % | 3 – 7 | Tsawg dua los yog sib npaug li 100 | |
| LUVITEC K 30 solution approx. 30 % 27 – 33 29 – 31 % 4 – 8 Tsawg dua los yog sib npaug rau 100 | 27 – 33 | 29 – 31 % | 4 – 8 | Tsawg dua los yog sib npaug li 100 | |
| LUVITEC K 90 hmoov | 88 – 92 | 95 – 100 % | 10000 – 25000/201 | 5 – 9 | Tsawg dua los yog sib npaug li 100 |
| LUVITEC K 90 HM hmoov | 92 – 96 | 95 – 100 % | 15000 – 30000/201 | 5 – 9 | Tsawg dua los yog sib npaug li 100 |
| LUVITEC K 90 hmoov S | 88 – 96 | 95 – 100 % | 10000 – 30000/201 | 5 – 9 | Tsawg dua los yog sib npaug li 100 |
| LUVITEC K 90 solution approx. 20% | 90 – 98 | 19 – 21 % | 10000 – 40000/202 | 7 – 9 | Tsawg dua los yog sib npaug li 100 |
PVP qhov zoo
Adhesion kev ua tau zoo
PVP muaj adhesion zoo thiab tuaj yeem siv dav los ua cov nplaum hauv cov khoom xws li cov kua nplaum, cov nplaum nplaum, cov txheej txheem, cov nplaum, thiab lwm yam.
Zoo solubility
Nws tuaj yeem yaj hauv dej thiab ntau cov kuab tshuaj organic, thiab muaj cov dej solubility siab thiab solubility. Nws cov yam ntxwv zoo solubility ua rau nws nrov heev hauv cov chaw muag tshuaj thiab tshuaj pleev ib ce, thiab nws yooj yim rau kev sib xyaw thiab siv rau hauv cov matrices sib txawv.
Zoo heev film-forming zog
PVP tuaj yeem tsim cov duab pob tshab thiab muaj zog ntawm ntau qhov chaw. Cov cuab yeej no ua rau nws muaj txiaj ntsig zoo rau kev tiv thaiv qhov chaw los yog txuas ntxiv cov khoom lag luam hauv cov khoom xws li kev tu tawv nqaij.
Tsis muaj tshuaj lom
Raws li cov khoom uas tsis yog-allergenic, PVP yog dav siv nyob rau hauv cov chaw muag tshuaj thiab tshuaj pleev ib ce, haum rau kev sib cuag ntawm daim tawv nqaij los yog siv sab hauv, xyuas kom meej kev siv. Cov khoom siv tshuaj lom neeg yooj yim tuaj yeem hloov kho rau cov khoom sib txawv.
Daim ntawv thov
Polyvinyl pyrrolidone yog siv dav hauv cov nplaum nplaum, feem ntau yog vim nws lub cev thiab tshuaj lom neeg tshwj xeeb. Hauv qab no yog cov lus qhia ntxaws:
rau cov nplaum nplaum
1. Raws li cov nplaum
Nws muaj qhov zoo hygroscopicity thiab solubility, tuaj yeem yaj sai sai thiab tsim cov nplaum nplaum, kom ntseeg tau tias cov nplaum nplaum tuaj yeem muab cov adhesion txaus thaum nws hu rau saum npoo ntawm cov khoom.
Cov qauv polymer ntawm PVP tuaj yeem tsim muaj kev sib raug zoo nrog ntau yam ntaub ntawv (xws li ntawv, ntaub, thiab lwm yam).
2. Kho lub sijhawm viscosity thiab kev sib txuas
PVP muaj qhov sib txawv ntawm qhov hnyav, thiab lub sijhawm viscosity thiab kev sib txuas ntawm cov nplaum nplaum tuaj yeem hloov kho raws li qhov xav tau. Los ntawm kev siv ntau hom PVP, cov tuam txhab lag luam tuaj yeem tswj cov kev sib txuas ceev ntawm cov nplaum nplaum kom nws tuaj yeem sib txuas tau sai yam tsis muaj ziab sai heev, muab sijhawm txaus hloov.
3. Txhim kho qhov ruaj khov ntawm cov nplaum nplaum
Cov khoom siv tshuaj lom neeg ntawm PVP yog qhov ruaj khov, uas tuaj yeem ua rau cov kua nplaum tsis tshua muaj peev xwm decompose lossis deteriorate thaum khaws cia thiab siv, thiab txuas ntxiv nws lub neej txee. Qhov no yog qhov tseem ceeb rau kev khaws cia ntev ntev thiab siv cov nplaum nplaum, tshwj xeeb tshaj yog rau cov khoom uas yuav tsum tau khaws cia rau lub sijhawm ntev.
4. Txhim kho qhov yooj thiab plasticity ntawm cov nplaum nplaum
Nws tuaj yeem txhim kho qhov smoothness thiab plasticity ntawm cov nplaum nplaum thaum siv, yog li nws tuaj yeem siv sib npaug ntawm qhov sib txawv.
FAQ
1.Vim li cas PVP raug xaiv los ua cov nplaum nplaum hauv cov nplaum nplaum?
Vim nws muaj dej solubility zoo heev, adhesion zoo thiab biocompatibility. PVP tuaj yeem ua rau pom qhov adhesion zoo ntawm ntau yam ntaub ntawv yam tsis muaj kev puas tsuaj rau daim tawv nqaij lossis ib puag ncig.
2. Puas yog kev siv PVP hauv cov kua nplaum nplaum puas lom?
Polyvinylpyrrolidone yog cov tshuaj tsis muaj tshuaj lom, tsis muaj tshuaj lom neeg uas yog siv dav hauv tshuaj, khoom noj thiab tshuaj pleev ib ce.
3. PVP cov khoom zoo li cas hauv cov nplaum nplaum?
Adhesion: PVP muaj cov khoom zoo adhesion, tso cai rau cov nplaum nplaum kom muaj kev ruaj ntseg ntawm ntau yam ntaub ntawv.
Cov khoom siv ua yeeb yaj kiab: PVP tuaj yeem tsim cov yeeb yaj kiab muaj zog thiab pob tshab tom qab ziab, kom ntseeg tau tias cov ntaub ntawv tseem ruaj khov tom qab sib txuas.
4. Kev solubility ntawm PVP hauv cov nplaum nplaum cuam tshuam li cas rau kev ua haujlwm ntawm cov khoom?
PVP muaj cov dej solubility zoo, uas txhais tau hais tias nws tuaj yeem yaj sai sai thaum nws ntsib dej lossis dej noo, kom ntseeg tau tias qhov chaw sib txuas tuaj yeem ua tau zoo.
5. PVP ruaj khov li cas hauv cov nplaum nplaum?
Nws qhia tau hais tias zoo tshuaj stability nyob rau hauv txawv kub thiab humidity tej yam kev mob. Nyob rau hauv qhov kub thiab txias ib puag ncig, PVP tivthaiv hauv cov nplaum nplaum tsis yooj yim rau degrade lossis poob.