Hydroxypropylmethylcellulose (HPMC) ipolymer inoshandiswa zvakasiyana-siyana uye inoshanda zvakasiyana-siyana iri yemhuri ye cellulose ether. Inogadzirwa kuburikidza nemaitiro akasiyana-siyana emakemikari nekushandura cellulose yechisikigo, chinhu chakakosha pamadziro emasero emiti. HPMC inobuda ine hunhu hwakasiyana hunoita kuti ive yakakosha mumaindasitiri akasiyana-siyana.
1. Maumbirwo emakemikari uye maumbirwo awo:
HPMC inotorwa kubva ku cellulose, iyo ine mayuniti eglucose anodzokororwa akabatana ne β-1,4-glycosidic bonds. Kuburikidza nekuchinja kwemakemikari, mapoka ehydroxypropyl ne methoxy anounzwa mumusana we cellulose. Dhigirii rekutsiva (DS) remapoka ehydroxypropyl ne methoxy rinogona kusiyana, zvichikonzera magiredhi akasiyana eHPMC ane hunhu hwakasiyana.
Maumbirwo emakemikoro eHPMC anoita kuti ikwanise kunyungudika uye kugadzira gel, zvichiita kuti ishande mumabasa akasiyana-siyana mumaindasitiri akasiyana-siyana.
2. Hunhu hwekunyungudika uye hwe rheological:
Chimwe chezvinhu zvinozivikanwa zveHPMC ndiko kunyungudika kwayo mumvura, zvichiita kuti ive polymer inonyungudika mumvura. HPMC inoumba mhinduro yakajeka uye yakakora kana yanyungudika mumvura, uye hunhu hwayo hwe rheological hunogona kugadziriswa nekuchinja huremu hwemamorekuru uye mwero wekutsiva. Kunyungudika uku uye rheology zvinoita kuti HPMC ive yakakodzera kushandiswa kwakasiyana-siyana.
3. Kutamba kwekugadzira mafirimu:
HPMC ine hunhu hwakanaka hwekugadzira firimu uye inogona kugadzira mafirimu anochinjika kana polymer yanyungudutswa mumvura. Hunhu uhwu hunoshandiswa mumaindasitiri emishonga nechikafu pakugadzira mapiritsi ekuputira, kufukidza manakiro uye kupa hunhu hwekudzivirira mumafirimu anodyiwa.
4. Mashandisirwo ekurapa:
HPMC inoshandiswa zvakanyanya muindasitiri yemishonga nekuda kwemabasa ayo akawanda. Inoshandiswa mumapiritsi semushonga unosunga, unobvisa makemikari, unogadzira firimu uye mushonga unosunungura masero nguva dzose. Kugona kwepolymer kudzora kuburitswa kwemishonga uye kuvandudza kugadzikana kwemishonga kunoita kuti ive chinhu chakakosha mukugadzirwa kwemhando dzakasiyana dzemushonga unonwiwa.
5. Indasitiri yekuvaka:
Muindasitiri yekuvaka, HPMC inoshandiswa zvakanyanya sechinhu chinosimbisa kukora, chinochengetedza mvura uye chinosimudzira kushanda zvakanaka muzvigadzirwa zvesimende zvakaita semamortar, grouts nemaplaster. Hunhu hwayo hwe rheological hunobatsira kuvandudza kushanda zvakanaka, kuramba kudonha uye kunamira, zvichiita kuti ive chinhu chakakosha muzvinhu zvekuvaka.
6. Chikafu nezvizoro:
Muindasitiri yezvekudya, HPMC inoshandiswa sechinhu chinosimbisa, chinosanganisa, uye chinosimbisa muzvigadzirwa zvakasiyana-siyana, zvinosanganisira muto, zvinonhuhwirira, uye zvigadzirwa zvemukaka. Kusava nechepfu kwayo uye kugona kwayo kugadzira majeli akajeka zvinoita kuti ikodzere kushandiswa muchikafu.
Saizvozvowo, muindasitiri yezvizoro, HPMC inoshandiswa mukugadzira zvinhu zvakaita semakirimu, mafuta ekuzora, uye mashampoo nekuda kwekukora kwayo, kugadzikana, uye hunhu hwekugadzira firimu. Inobatsira pakuumbwa, kunaka uye kugadzikana kwezvizoro.
7. Pendi neMapendi:
HPMC inoshandiswa semuchina wekunatsiridza uye kugadzirisa rheology mumapendi nemapendi anobva mumvura. Inovandudza hunhu hwekushandisa pendi, senge kugona kupendwa uye kuramba kupfapfaidzwa, ukuwo ichivandudza mashandiro ese ependi.
8. Namatira:
Mukugadzira glue, HPMC inoshanda sechinhu chinosimbisa uye chinochengetedza mvura. Kugona kwayo kudzora kusimba kwayo uye kunatsiridza kunamira kunoita kuti ive yakakosha mukugadzira glue mumaindasitiri akasiyana-siyana, kusanganisira kugadzira matanda nekubatanidza mapepa.
9. Sisitimu yekuburitsa inodzorwa:
Kuburitswa kwezvinhu zvinoshanda kwakadzorwa kwakakosha kumaindasitiri mazhinji, kusanganisira mishonga nekurima. HPMC inowanzoshandiswa kugadzira masisitimu ekuburitsa zvinhu akadzorwa nekuda kwekugona kwayo kugadzira matrix inodzora mwero wekuburitswa kwezvinhu zvakavharirwa nekufamba kwenguva.
10. Mashandisirwo ekurapa:
Muminda yekurapa nekugadzira tissue, HPMC yakaongororwa nekuda kwekushanda kwayo zvakanaka uye kugona kwayo kugadzira mahydrogel. Mahydrogel aya anogona kushandiswa mukupa mishonga, kuporesa maronda, uye kushandiswa pakugadzirisa tissue.
11. Hunhu hwekuchengetedza nharaunda:
HPMC inoonekwa seyakachengeteka zvakatipoteredza sezvo ichibva muzvinhu zvinogona kushandiswazve uye inogona kuora. Kushandiswa kwayo mumhando dzakasiyana-siyana kunoenderana nekuwedzera kwekudiwa kwezvinhu zvinogara kwenguva refu uye zvisina njodzi zvakatipoteredza.
12. Matambudziko nepfungwa dzekufunga nezvadzo:
Kunyangwe HPMC ichishandiswa zvakanyanya, pane matambudziko akati wandei, anosanganisira kusanzwisisa kwayo tembiricha, izvo zvinokanganisa hunhu hwayo hwegel. Pamusoro pezvo, maitiro ekutsvaga nekushandura makemikari e cellulose anoda kutariswa zvakanyanya kubva pakuona kwezvakatipoteredza uye kuchengetedzeka.
13. Kutevedzera Mutemo:
Sezvineiwo nechero chinhu chinoshandiswa mumishonga, chikafu nezvimwe zvigadzirwa zvevatengi, zvakakosha kuti mitemo yakatarwa nemasangano anotonga itevedzwe. HPMC inowanzo sangana nezvinodiwa zvemitemo, asi vagadziri vanofanirwa kuve nechokwadi chekuti mitemo chaiyo inotevedzwa pakushandiswa kwega kwega.
mhedziso:
Hydroxypropylmethylcellulose (HPMC) ipolymer inoshandiswa zvakasiyana-siyana ine mashandisirwo akasiyana-siyana mumaindasitiri akasiyana-siyana. Musanganiswa wayo wakasiyana wekunyunguduka, hunhu hwekugadzira mafirimu uye kudzora rheology zvinoita kuti ive yakakosha mumishonga, kuvaka, chikafu, zvizoro, pendi, zvinonamira nezvimwewo. Sezvo maindasitiri achiramba achitsvaga mhinduro dzinogara kwenguva refu uye dzinoshanda, HPMC ingangoramba iri mutambi mukuru mukugadzira zvigadzirwa zvakasiyana-siyana. Pasinei nematambudziko, kutsvagurudza kuri kuenderera mberi uye kufambira mberi mukemikari ye cellulose kunogona kuwedzera mashandisirwo uye kuvandudza mashandiro eHPMC mune ramangwana.
Nguva yekutumira: Zvita-28-2023