Hydroxyethylcellulose (HEC) uye hydroxypropylcellulose (HPC) ese ari maviri anobva ku cellulose, yakasikwa polymer inowanikwa muchirimwa sero madziro. Aya ma cellulose anobuda anoshandiswa zvakanyanya mumaindasitiri akasiyana nekuda kweakasiyana zvivakwa.
Kemikari chimiro:
Hydroxyethyl cellulose (HEC):
HEC inogadzirwa nekuita cellulose ine ethylene oxide.
Muchimiro chemakemikari cheHEC, mapoka e-hydroxyethyl anounzwa mumusana we cellulose.
Iyo dhigirii yekutsiva (DS) inomiririra avhareji nhamba yemapoka ehydroxyethyl pachikamu cheglucose mucheni ye cellulose.
Hydroxypropylcellulose (HPC):
HPC inogadzirwa nekurapa cellulose nepropylene oxide.
Munguva yekugadzira maitiro, hydroxypropyl mapoka anowedzerwa kune cellulose chimiro.
Zvakafanana neHEC, dhigirii rekutsiva rinoshandiswa kuyera huwandu hweiyo hydroxypropyl inotsiva mune cellulose molecule.
chimiro:
Hydroxyethyl cellulose (HEC):
HEC inozivikanwa nekugona kwayo kuchengetedza mvura, ichiita kuti ive chinhu chakajairika mumhando dzakasiyana dzekukora uye gelling application.
Iyo inoumba mhinduro yakajeka mumvura uye inoratidza pseudoplastic maitiro, zvichireva kuti inova isina viscous pasi pekunetseka kweshear.
HEC inowanzoshandiswa mukugadzirwa kwezvigadzirwa zvekuchengetedza munhu, mishonga, uye sechinhu chinowedzera mumvura-based coatings.
Hydroxypropylcellulose (HPC):
HPC zvakare ine yakanaka solubility yemvura uye firimu-kugadzira zvivakwa.
Iine huwandu hwakawanda hwekuenderana nemhando dzakasiyana dzesolvents pane HEC.
HPC inowanzoshandiswa sebhainda mukugadzirwa kwemishonga, zvigadzirwa zvekuchengetedza nemuromo, uye kugadzirwa kwehwendefa.
application:
Hydroxyethyl cellulose (HEC):
Inoshandiswa zvakanyanya mumaindasitiri ezvekuzora uye ega ega seanokora mune shampoos, lotions uye makirimu.
Inoshandiswa se stabilizer uye viscosity regulator mumishonga yekugadzira mishonga.
Inoshandiswa mukugadzirwa kwemvura-based paints uye coatings.
Hydroxypropylcellulose (HPC):
Inowanzoshandiswa mumishonga yemishonga, kunyanya sebhainda mukugadzirwa kwemapiritsi.
Inoshandiswa mune zvigadzirwa zvekuchengetedza nemuromo senge mushonga wemazino nekuda kwekukora kwayo.
Inogona kushandiswa mune inodzorwa kuburitsa zvinodhaka kuendesa masisitimu.
Nepo hydroxyethyl cellulose (HEC) uye hydroxypropyl cellulose (HPC) vachigovana zvimwe zvakafanana nekuda kwekwakabva cellulose, ivo vanosiyana muchimiro chemakemikari, zvivakwa, uye mashandisirwo. HEC inowanzofarirwa mukutarisira kwega uye kupfekedza maumbirwo ekuchengetedza kwayo mvura uye kugona kukora, nepo HPC inoshandiswa zvakanyanya muindasitiri yemishonga, kunyanya mukugadzira mahwendefa uye inodzorwa-kuburitsa dhizaini masisitimu. Kunzwisisa misiyano iyi kwakakosha pakusarudza akakodzera cellulose anobva kune chaiwo maindasitiri ekushandisa.
Nguva yekutumira: Jan-16-2024