HydroxyPropyl methylcellose (HPMC) inzvimbo yezvinhu zvakasiyana-siyana nehuremu hwakawanda hwekushandisa mumasango akasiyana siyana kusanganisira mishonga, chikafu, kuvaka uye cosmetics. Iyo mainini main midziyo inoshandiswa kuSynthesze HPMC iri cellulose uye procyonece oxide.
1. Cellulose: hwaro hweHPMC
1.1 Overview of cellulose
Cellulose ndeye yakaomarara carbohydrate iyo ndiyo yakakosha chimiro chechimiro chemasero girazi cell madziro emadziro. Iyo ine mitsara yemaketani yeglucese mamorekuru yakabatana pamwe ne β-1,4-glycosic zvisungo. Kuwanda kweiyo hydroxyl mapoka mu cellulose kunoita kuti ive yakakodzera kutanga kwekutanga kweiyo synthesis yemusangano akasiyana-siyana mheremalose derivatives, kusanganisira HPMC.
1.2 Cellulose Kuwana
Cellulose inogona kutorwa kubva pane zvakasiyana zvekudyara zvigadzirwa, senge matanda emapuranga, machira ekotoni, kana zvimwe zvidyarwa zvidiki. Wood wallp ipo yakajairika sosi nekuda kwekuwanda kwayo, mutengo-kushanda, uye kusimba. Iko kubviswa kwemasero kazhinji kunosanganisira kuputsa chirimwa zviputi kuburikidza neyekutevedzana kwemuchina uye makemikari maitiro.
1.3 kuchena nehunhu
Iyo mhando uye kuchena kwemherem cellulose inotsoropodza mukusarudza hunhu hwechigadzirwa cheHPMC yekupedzisira. Yakanyanya-Pollity Cellity Cellulose inovimbisa kuti HPMC inogadzirwa neyakagadzikana zvivakwa senge viscosity, solubility uye kugadzikana kwekunyora.
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2.1 Nhanganyaya Kuti Uprocleene oxide
Propyone oxide (po) organic compind ine makemikari formula c3h6o. Iyo epoxideide, zvinoreva kuti ine oksijeni atomu yakasungwa kune maviri ari maviri ackucent carbon maatomu. Profylexe oxide ndiyo kiyi yechigadzirwa cheSynthesis yehydroxyprupyl Cellulose, iyo iri yepakati yekugadzirwa kweHPMC.
2.2 hydroxyprupropylation maitiro
The hydroxypropylation process involves the reaction of cellulose with propylene oxide to introduce hydroxypropyl groups onto the cellulose backbone. Kuita uku kunowanzoitwa mukuvapo kwekutanga kwehasha. Hydroxyprospropyl mapoka anoisa kuvandudzwa kwekunyatsogadziriswa uye zvimwe zvinodikanwa zvivakwa kune cellulose, zvichitungamira kuumbwa kwehydroxyprosl cellulose.
3. Methylation: Kuwedzera Methyl Mapoka
3.1 methylation maitiro
Mushure mehydroxyprupropropylation, iyo inotevera nhanho muHPMC synthesis iri methylation. Maitiro acho anosanganisira kusuma kwemamita methyl kune iyo cellulose backbone. MetHyl Chloride chinhu chinowanzoshandiswa chinoshandiswa pakuita izvi. Dhigirii remuimbi rinobata zvivakwa zvechigadzirwa chekupedzisira HPMC, kusanganisira viscosity uye maitiro egiri.
3.2 degree rekutsiva
Dhigirii rekutsiva Maitiro ekugadzira anodzorwa nokungwarira kuti awane basa raunoda kweHPMC zvigadzirwa.
4. Kuchenesa uye mhando kutonga
4.1 kubviswa kwe-zvigadzirwa-zvigadzirwa
Iyo synthesis yeHPMC inogona kukonzera kuumbwa kwezvinhu-zvigadzirwa zvakadai semaronda kana asina kujairika reagents. Matanho ekunatswa anosanganisira kugeza uye filtoration anoshandiswa kubvisa izvi zvakasvibiswa uye kuwedzera kuchena kwechigadzirwa chekupedzisira.
4.2 Mhando Yekudzora Matanho
STRICATICT EXTRIAL CRICK matanho anoitwa muzvikamu mukati meiyo yekugadzira yekugadzira kuti ive nechokwadi chekuenderana uye mhando yeHPMC. Nyanzvi dzekuongorora dzakadai semberi, chromatography uye rheology inoshandiswa kuongorora paramita senge suremu, dhigiri rekutsiva neViscoms.
5. Hunhu hwe hydroxypropyl methylcellose (HPMC)
5.1 Zvivakwa zvemuviri
HPMC ndeyechena kune chena-chena, isina kusimba poda neine yakanaka firimu-inoumba zvivakwa. Iyo hygroscopic uye nyore nyore maficha yakajeka kana yakapatsanurwa mumvura. Iyo solubility yeHPMC inoenderana neiyo degree rekutsiva uye inokanganiswa nezvinhu zvakadai sekupisa uye pH.
5.2 makemikari chimiro
Iyo makemikari chimiro cheHPMC ine cellulose backbone ine hydroxypruppropyl uye methyl siki. Iyo chiyero chevatambi ava, chinoratidzwa mune iyo degree rekutsiva, inosarudza iyo yakazara makemikari chimiro uye nekudaro zvinhu zveHPMC.
5.3 viscosity uye rheological zvivakwa
HPMC inowanikwa mumakiredhi akasiyana neye akasiyana viscosity. Iyo viscosity yeHPMC Solutions chinhu chakakosha mune mishonga senge mishonga, painobata iyo yekuburitsa nhoroondo yemushonga, uye mukuvaka, uko kunobata basa remauto uye pastes.
5.4 Firimu-inogadzira uye yakakora nzvimbo
HPMC inoshandiswa zvakanyanya sefirimu raimbova mumishonga yemishonga uye seyekuita mumiririri wakasiyana siyana mune dzakasiyana siyana mafambiro. Maitiro ayo efirimu ekugadzira anoita kuti zvive zvakakosha mukuvandudzwa kwekudzorwa-kusunungura zvinodhaka zvinodhaka
6. Kushandiswa kwehydroxypropyl methylcellose
6.1 Indasitiri yeCharmaceal
Muindasitiri yemishonga, HPMC inoshandiswa kuumba yemuromo yakasimba dosi maitiro mafomu akadai sehata nemapiritsi. Izvo zvinowanzoshandiswa senge binder, disintegrant uye firimu yekubatanidza mumiririri. Iyo inodzorwa-kuburitswa zvivakwa zveHPMC inofambisa iyo application mukusunungurwa-kwakasunungurwa.
6.2 Indasitiri yekuvaka
Muchikamu chekuvaka, HPMC inoshandiswa semvura inochengetedza mumiriri, thickener uye inonamatira muzvikamu zve coment. Iyo inosimudzira kushanda kweiyo durari, inodzivirira kusekerera muzvishandiso zvekushandisa, uye inovandudza mashandiro ezvese zvekuvaka.
6.3 Chikafu Chekudya
HPMC inoshandiswa muindasitiri yechikafu seanotenda, stabilizer uye emulsifier. Kugona kwayo kuumba maGels pane yakaderera nzvimbo inoita kuti ive yakakodzera kune dzakasiyana siyana dzekushandisa, kusanganisira sosi, kupfeka uye madhiri.
6.4 cosmetics uye zvigadzirwa zvega zvega
Mune cosmetics uye zvigadzirwa zvemunhu zvekutarisira, HPMC inowanikwa mune yakasarudzika yezvinhu zvinosanganisira mafirimu, lotions uye shampoos. Iyo inobatsira kuvandudza chimiro, kugadzikana uye kusakwana kwezvigadzirwa izvi.
6.5 Mamwe maindasitiri
HPMC's kuwanda kunowedzera kune mamwe maindasitiri, kusanganisira maindasitiri, pendi uye mainominari, kwainogona kushandiswa seanogadzirisa modifier, kuchengetwa kwemvura uye kwakasimba.
7. Mhedziso
Hydroxypromylmethylcellose inzvimbo inoverengeka polymer ine akawanda ma application. Yayo Synthesis inoshandisa cellulose uye propicene oxide seyakanyanya zvinhu zvekushandisa, uye cellulose inoshandurwa kuburikidza nehydroxypruslation uye methylation maitiro. Kudzora Kudzora kweiyi zvinhu zvigadzirwa uye maitiro maitiro anogona kuburitsa HPMC ine yakagadzirirwa zvivakwa kuti usangane nezvayo maindasitiri anoda. Naizvozvo, HPMC inoita basa rakakosha mukuvandudza mashandiro uye kushanda kwezvigadzirwa zvakayambuka maindasitiri. Kuongorora kuchiramba kuchiramba kuchiramba
Kutumira Nguva: Dec-28-2023