HydroxyPropyl methylcellose (HPMC) is is is is-ionic cellulose inoshandiswa zvakanyanya muzvivakwa zvekuvaka, mishonga, chikafu, zvizhinha uye zvimwe minda. Kunyanya mukushandiswa kwekunyepedzera uye majoini makomputa, HPMC yave yakakosha inowedzera nekuda kwezvivakwa zvayo zvakasarudzika.
1. Basic hunhu hweHPMC
HPMC ine yakanakisa kuremerwa, kudzokorora kwemvura, firimu-kugadzira uye inogadzira zvinhu, izvo zvinoita kuti itambe yakakosha basa muzvivakwa zvekuvaka. Chekutanga pane zvese, HPMC ndeyemvura-soluble cellulose inobviswa iyo inogona kunyungudika mumvura inotonhora kuti igadzire iyo yakajeka kana translucent mhinduro. Iyo ine yakanaka mvura solubility uye kupararira uye kunogona kuwedzera zvakanyanya zvevisiko zvegadziriro yehurongwa hwakadzika. Kechipiri, HPMC ine yakanakisa mvura yekuchengetwa uye inogona kuumba firimu rekudzivirira pamusoro peiyo porous substrate kudzivirira mvura kubva mukubuda nekukurumidza. Uye zvakare, mafirimu emafirimu ekuumba anotendera kuti aumbe mafirimu ezvekuwedzera mune zvekushandisa zvinosimudzira simba renyika uye kupfeka kurwisa.
2. Kushandiswa kweHPMC mumakwenzi anokandira
Caulk chinhu chinoshandiswa kuzadza marara uye mapundu munzvimbo dzezvivakwa, zvivakwa uye zvigadzirwa. Basa reHPMC mumakwenzi anonyatsoratidzwa mune zvinotevera zvinhu:
Thickener: HPMC inogona kuwedzera zvakanyanya zvikwangwani zvemukati memukati memunyori, achiita kuti ibate zvakanaka panguva yekuvaka uye zvisiri nyore kuSAG uye SAG. Izvi zvinonyanya kukosha kune vertical nzvimbo dzakadai semadhiza uye ma ceilings.
Mvura-inochengetedza mumiririri: Mukushandisa kwevakabatanidzwa vamiririri, kuita kwemvura-kuchengetedza kweHPMC kunonyanya kutsoropodza. Zvinogona kuita zvinobudirira kunyorova, dzivirira kunyorova mune caulking compound kubva mukuzvidzwa nekukurumidza mushure mekuvaka, uye kudzivisa marara uye kuderera kunokonzerwa nekuomesa kwakanyanya. Izvi hazvingobatsire kuvandudza nguva yekushandisa yeiyo caulk, asi zvakare inowedzera simba rayo uye kusimba kwaro kwakapora.
Lubricity uye Smoothness: HPMC ine yakanaka lubricity, ichiita kuti mumiririri anonyudza panguva yekuvaka uye nyore kushanda uye nyore kushanda. Iyo inovandudzawo kusimba kweiyo caulk pamusoro, kugadzira chigadzirwa chakapera kufadza.
3. Kushandiswa kweHPMC mune yakabatanidzwa makomputa
Joint compound inonyanya kushandiswa kuzadza uye kusimbisa majoini pakati pezvivakwa zvakasiyana muzvivakwa kuti vadzivise kupinzwa kwemvura, mweya uye kusvibisa. Iko kushandiswa kweHPMC muvamiriri veVoint kwakakosha zvakafanana, zvakananga seinotevera:
ADHesion: HPMC inogona kuvandudza basa rekunamatira rejoinji, zvichiita kuti ive yakasimba kuyananiswa nezvinhu zvibodzwa uye kudzivirira kutarisana uye kupaza majoini.
Elasticity uye kuchinjika: Sezvo zvivakwa zvinodzora zvishoma pasi pekuchinja mukushisa uye humidity, majoini anofanirwa kuve neyakaenzana nekuchinja uye kushanduka. HPMC inogona kupa iyo yekubatanidza kune imwe elasticity, ichiita kuti irambe yakasimba panguva yekurashwa uye isiri nyore kuputsa.
Crack Kudzivisa: Iyo yekuzvidza mhedzisiro yeHPMC inogona kuvandudza zvakanyanya iyo crack yekukanganisika yemubatanidzwa uye kudzivirira marara uye kukuvara kunokonzerwa nekushushikana kwezvakatipoteredza.
4. Zvinotangira kushandisa HPMC
Kunyangwe HPMC ichishandiswa zvakanyanya mumachira uye majoini, pane zvimwe zvinhu zvinoda kutariswa panguva yekushandisa. Kutanga, iyo yakakodzera HPMC muenzaniso inofanirwa kusarudzwa zvinoenderana nenzvimbo chaiyo yekushandisa uye zvigadzirwa kuti uve nechokwadi chekuita kwayo. Kechipiri, huwandu hweHPMC yakawedzerwa hunoda kuti dzive dzakadzorwa zvakanyanyisa. Kunyanya kuwedzerwa kunogona kukonzera kuti zvinyorwa zvive zvinonyanyisa uye zvine chekuita nekushanda. Panguva imwecheteyo, HPMC inofanira kuchengetedzwa kubva pakunyorova uye kupisa kwakanyanya panguva yekuchengetedza uye yekufambisa kudzivirira kusvibiswa kwekuita.
Hydroxyprusyl methylcellose (HPMC) inoita basa rinokosha mukushandiswa kwemashandisirwo uye majoini. Izvo hazvingovandudze chete kuita kwekuvaka uye kwebasa hupenyu hwezvinyorwa, asi zvinovandudzawo kutaridzika uye kuita kwechigadzirwa chakapera. Nekuvandudzwa kwezvinhu zvekuvakisa tekinoroji, tarisiro yekushandisa yeHPMC ichave yakawedzera.
Kutumira Nguva: Kukadzi-17-2025