Hydroxypropyl methylcellulose (HPMC) ipolymer yakasikwa inowanzoshandiswa mumaindasitiri akasiyana siyana kusanganisira chikafu, mishonga uye kuvaka. Muindasitiri yekupfekedza, HPMC inoonekwa sechinhu chinodiwa nekuda kweiyo yakasarudzika zvivakwa, zvichiita kuti ive chinhu chinonyanya kukosha mumachira epamusoro-soro. Makofi akagadzirwa kubva kuHPMC anokosheswa nekunaka kwavo viscosity, adhesion uye kudzivirira mvura.
1. HPMC ine yakanakisa kuchengetedza mvura. Izvi zvinodaro nekuti iyo hydrophilic polymer, zvichireva kuti ine kukwezva kwakasimba kumamorekuru emvura. Kana HPMC yawedzerwa kune machira, inobatsira kuchengetedza hunyoro kwenguva yakareba, iyo yakakosha kuchengetedza kunaka uye kugadzikana kwejasi. Mabhachi asina hunhu hwekuchengetedza mvura anogona kukuvadzwa nyore nyore kana kushata kana akafumurwa nehunyoro kana hunyoro. Naizvozvo, HPMC inovandudza kudzivirira kwemvura kwejasi, ichiita kuti ive yakakodzera kushandiswa munzvimbo dzakaoma.
2. HPMC ine maitiro akanaka ekugadzira firimu. HPMC mamorekuru ane cheni dzakareba dzinovatendera kuti vagadzire mafirimu akasimba kana vachidyidzana nezvimwe zvekupfeka zvakaita seresin uye pigment. Izvi zvinovimbisa kuti pendi yakagadzirwa kubva kuHPMC ine yakanaka kunamatira uye inonamira zvakanaka kumusoro kwainoiswa. Iyo firimu-inogadzira zvimiro zveHPMC zvakare inovandudza kusimba kwejasi, ichiwedzera kuramba kwayo kukuvara uye abrasion.
3. HPMC ine yakanakisa kugarisana nemamwe coatings. Icho chinhu chinoshandiswa zvakasiyana-siyana chinogona kuwedzerwa kune zvakasiyana-siyana zvekuputira maitiro pasina kukanganisa kushanda kwayo. Izvi zvinoreva kuti machira akagadzirwa kubva kuHPMC anogona kugadzirwa kuti asangane nezvinodiwa, senge yakawedzera kudzivirira kwemvura, kupenya kana magadzirirwo. Pamusoro pezvo, HPMC inogona kugadzirwa nemaviscosities akasiyana, ichibvumira kugadzirwa kwemachira ane akasiyana ekushandisa zvivakwa.
4. HPMC inoenderana nemhoteredzo uye ine muchetura wakaderera. Izvi zvinoita kuti ive chinhu chakachengeteka chekushandisa mumachira anosangana nechikafu, mvura kana zvimwe zvinhu zvinonzwisa tsitsi. Makomboti akagadzirwa kubva kuHPMC anogona kuparara uye haakonzeri njodzi kune zvakatipoteredza, zvichiita kuti ive sarudzo inokwezva kune vatengi vanoziva zvakatipoteredza.
5. HPMC iri nyore kushandisa uye kubata. Inouya nenzira dzakasiyana-siyana sehupfu kana mhinduro uye inonyungudika nyore mumvura. Izvi zvinoita kuti zvive nyore kusanganisa nezvimwe zvekupfeka uye zvinova nechokwadi chekuti machira akagadzirwa kubva kuHPMC ane chimiro chakafanana uye viscosity. Pamusoro pezvo, HPMC inhengo isiri-ionic, zvinoreva kuti haina kukanganiswa ne pH yependi yekugadzira. Izvi zvinoita kuti ive yakagadzikana ingredient inogona kushandiswa mune acidic kana alkaline pendi maumbirwo.
6. HPMC ine kushanda kwakanakisisa pasi pemamiriro akasiyana ekushisa uye hunyoro. Mabhachi akagadzirwa kubva kuHPMC haaite brittle kana kutsemuka kana akaiswa kune yakaderera tembiricha. Vanochengetedzawo zvinhu zvavo pavanenge vachisangana nepamusoro pemvura. Izvi zvinogadzira machira akagadzirwa kubva kuHPMC akakodzera kushandiswa munzvimbo dzakasiyana siyana, kusanganisira yakanyanyisa mamiriro ekunze.
7. HPMC ine solubility yakanaka mune organic solvents. Ichi chivakwa chinoita kuti HPMC ibatanidzwe nyore musolvent-based coatings. Uyezve, nokuti HPMC inhengo isiri-ionic, haikanganisi zvinhu zvemushonga kana kugadzikana kwekugadzirisa kwekugadzira. Izvi zvinoita kuti HPMC ive chinhu chakanakira mumhando dzakasiyana dzekupfeka, kusanganisira solvent-based coating formulations.
Iyo yakasarudzika zvimiro zveHPMC inoita kuti ive chinhu chakakosha mukukochekera kwepamusoro-soro. Kuchengetedza kwayo kwakanakisa kwemvura, kuumbwa kwemafirimu, kuenderana, kushamwaridzana kwezvakatipoteredza, nyore kushandisa, kuita uye kunyungudika kunoita kuti ive yakakodzera kushandiswa mumhando dzakasiyana-siyana dzekuputira. Makomboti akagadzirwa kubva kuHPMC anokosheswa nekunamira kwawo kwakanaka, kusamira kwemvura uye kusimba, zvichiita kuti ave akakodzera kushandiswa munzvimbo dzakaoma. Nekuda kwekusiyana-siyana kwayo, HPMC inogona kugadzirwa kuti isangane nezvinodiwa, ichiita sarudzo yakakurumbira muindasitiri yekupfeka. Pakazere, HPMC chinhu chepamusoro-chinoshanda icho chakakosha pakubudirira kwepamusoro-kugona machira.
Nguva yekutumira: Oct-13-2023