1. Sumo
HydroxyPropyl methylcellose (HPMC) ndeye yakakosha synthetic melleulose inoshandiswa zvakanyanya mukuvakwa, gadziriso yemishonga, yekuwedzera chikafu uye cosmetics. Kuchengetwa kwayo kwemvura kwayo ndeimwe yehunhu hwakakosha hweHPMC yakafara kwazvo application.
2. Chimiro uye zvivakwa zveHPMC
2.1 makemikari chimiro
HPMC ndeye semi-synthetic cellelose ether. Iyo hydroxypruppropyl uye methyl inoongorora muzvimiro zvemakemikari ichipa iyo yakasarudzika solubility uye collodal zvivakwa. Chimiro chekutanga cheHPMC chine β-d-glucose chains of cellulose, mune mamwe mapoka e hydroxyl anotsiviwa ne methyl uye hydroxyprupropyl mapoka. Nzvimbo uye degree rekutsiva kweaya akaomesa zvinokonzera iyo solubility, viscosity uye kuchengetwa kwemvura kweHPMC.
2.2 Zvivakwa zvemuviri
Solubl Solubility: HPMC inokanganisa mumvura inotonhora uye inoumba mhinduro yemvura mumvura inopisa.
Kukora zvinhu: Inogona kuumba mhinduro yeVaConcous mumvura uye ine yakanaka yakanaka mhedzisiro.
Firimu-inogadzira nzvimbo: Inogona kuumba iyo yakajeka uye elastic firimu.
Kumiswa: Iyo ine yakanaka yekumiswa kuita mumhinduro uye inogona kudzikamisa chinhu chakamiswa.
3. Kuchengetwa kwemvura kweHPMC
3.1 Kuchengeta Mvura Mechanism
Kuchengetwa kwemvura kweHPMC kunonyanya kuzivikanwa mukudyidzana pakati pehydroxyl uye kutsiva mapoka mune yayo molecular chimiro uye mamorekuru emvura. Zvakananga, HPMC inochengetedza mvura kuburikidza neinotevera michina:
Hydrogen Kubatanidza: Iyo hydroxyl mapoka muHPMC mamorekuru inogadzira hydrogen zvisungo zvine mamorekuru nemamolekyudhi emvura. Iri simba rinoita kuti mamorekuru emvura ave akasungwa akasungwa neHPMC, kuderedza kubuda kwemvura.
Yakakwira viscosity mhedzisiro: Iyo yakakwira viscosity mhinduro yakaumbwa neHPMC mumvura inogona kukanganisa kufamba kwemvura, nekudaro kuderedza kurasikirwa kwemvura.
Network Chimiro: Iyo Network chimiro yakaumbwa neHPMC mumvura inogona kutora uye kuchengetedza mamorekuru emvura, kuti mvura iparadzwe mune network network.
COLLOID Mhedzisiro: Iyo colloid yakaumbwa neHPMC inogona kukiya mvura mukati meiyo colloid uye kuwedzera iyo nguva yekuchengeta mvura.
3.2 zvinhu zvinokanganisa kuchengetwa kwemvura
Dare rekutsiva: Kuchengetwa kwemvura kweHPMC kunokanganiswa neiyo degree rekutsiva (DS). Yakakwira iyo degree rekutsiva, iyo yakasimba iyo hydrophilikuti yeHPMC uye iri nani yekuchengetedza kwayo kwemvura.
MaElecular uremu: Yakakwira Molecular uremu hunobatsira fomu yakasimba molecular cheni neteni, nekudaro kugadzirisa kuchengetedza kwemvura.
Kusimbisa: Iko kusimbiswa kweHPMC Solution ine kukosha kwakakosha pakuchengeta kwemvura. Mhinduro dzakakwirira-dzinosangana dzinokwanisa kuumba mamwe madhiri ekugadzirisa uye akaomesesa network network, nekudaro anodzokorora imwe mvura.
Tembiricha: Kuchengetwa kwemvura kweHPMC kunosiyana ne tembiricha. Kana tembiricha ichisimuka, iyo visikopa yeHPMC mhinduro inoderera, zvichikonzera kuderera kwekuchengetwa kwemvura.
4. Kushandiswa kweHPMC muminda yakasiyana
4.1 zvekuvaka
Muzvivakwa zvekuvaka, HPMC inoshandiswa seyakafa yemvura yeiyo coment uye gypsum-based zvigadzirwa. Mabasa ayo makuru anosanganisira:
Kuvandudza Basa rekuvaka: Nekuchengetedza huwandu hwakakodzera hwekunyorova, nguva yakavhurika yeiyo coment uye gypsum inowedzerwa, ichiita kuti maitiro ekuvaka agwinya.
Deredza marara: Kuchengeta kwakanaka kwemvura kunobatsira kuderedza marara kunogadzirwa panguva yekuomesa uye kunovandudza simba uye kusimba kwezvinhu zvekupedzisira.
Kuvandudza Bond Simba: Mune tsile anomisheni, HPMC inogona kuwedzera bond simba uye kusimudzira kusungwa.
4.2 mishonga gadziriro
Muchigadziro chemishonga, kuchengetwa kwemvura kweHPMC kunoita basa rinokosha mukuburitswa uye kugadzikana kwezvinodhaka:
Kugadziriswa-Kuburitswa Kugadzirira: HPMC inogona kushandiswa seyekuburitsa matrix kune zvinodhaka kuti uwane kusunungurwa kwekusunungurwa kwezvinodhaka nekudzora mvura kuputika uye zvinodhaka zvinodhaka.
THICKEERS uye Binders: Mune zvinodhaka zvemvura uye mahwendefa, HPMC zviito sediki uye binder kuchengetedza kugadzikana uye kuwirirana kwezvinodhaka.
4.3 Zvekudya Zvekudya
Muindasitiri yechikafu, HPMC zviito sedhizimusi uye stabilizer, uye kuchengetedza kwemvura kunoshandiswa:
Kuvandudza kuravira: kuburikidza nekuchengetwa kwemvura, HPMC inogona kuvandudza chimiro uye kuravira kwechikafu, ichiita kuti ive yakawandisa uye inonaka.
Kuwedzeredza hupenyu hwesherufu: kuburikidza nekuchengetwa kwemvura, HPMC inogona kudzivirira kurasikirwa kwemvura panguva yekuchengetedza, nekudaro nekuwedzera hupenyu hwesherufu.
4.4 cosmetics
Mune cosmetics, iyo yekuchengetwa kwemvura yeHPMC inoshandiswa:
Moisturizizing mhedzisiro: Semisturizer, HPMC inogona kubatsira kukiya mumanyoro pamusoro peganda uye kupa nguva yakareba zvekunyora.
Simbisa kumiswa kwemisimudziro: Mune emulsions uye kumiswa, HPMC inokanganisa chigadzirwa uye kudzivirira kugadzikana uye sedimentation.
Kuchengetwa kwemvura kweHPMC kunoita kuti ive yakakosha inoshanda zvinyorwa muminda yakawanda. Iyo inochengetedza mvura uye inoderedza kubuda kwemvura kuburikidza neHydrogen Kubatanidza, yakakwira viscosity mhedzisiro, network chimiro uye colloid mhedzisiro. Kudzokorora kwemvura kunokanganiswa nedhigiri rekutsiva, molecular uremu, kusunganidzwa uye tembiricha, iyo inoona mashandiro eHPMC mune chaiyo application. Kunyangwe muzvivakwa zvekuvaka, gadziriso yekugadzira, zvekudya zvekudya kana zvigadziriso, iyo yekuchengetwa kwemvura yeHPMC inoita basa rinokosha mukuvandudza kunaka uye kuita kwechigadzirwa.
Kutumira Nguva: Jun-26-2024