HPMC (hydroxypropyl methylcellulose) chinhu chakakosha chinowedzera chinowanzoshandiswa mukuvaka zvinhu zvakadai seputty powder, coatings, adhesives, etc. Iine mabasa akawanda akadai sekukora, kuchengetedza mvura, nekuvandudza kushanda kwekuvaka. Mukugadzirwa kweputty powder, kuwedzerwa kweHPMC hakugoni kungovandudza kuchengetwa kwemvura kwechigadzirwa, asiwo zvinobudirira kuwedzera nguva yayo yekuvaka, kudzivirira putty kubva pakuoma nokukurumidza panguva yekuvaka, uye kukanganisa maitiro ekuvaka.
1. Sarudza yakakodzera HPMC modhi
Kuita kweHPMC kwakabatana zvakanyanya nehuremu hwayo hwemamorekuru, hydroxypropyl substitution, methyl substitution uye zvimwe zvinhu. Kuti uvandudze kuchengetwa kwemvura yeputty powder, tanga wasarudza yakakodzera HPMC modhi.
High viscosity HPMC: HPMC ine yakakwirira molecular uremu inogona kuumba yakasimba network dhizaini, iyo inobatsira kuvandudza kuchengetwa kwemvura yeputty poda uye kudzivirira kuvhuvhuta kwemvura nguva isati yakwana. Kazhinji, HPMC ine viscosity yakakwirira ichava nemhedzisiro yakanaka pakuchengetedza mvura.
Dhigirii yakakodzera yekutsiva: Iyo hydroxypropyl inotsiva uye methyl inotsiva yeHPMC inokanganisa kunyungudika kwayo uye simba rekuchengetedza mvura. Iyo yepamusoro dhigirii yehydroxypropyl inotsiva inobatsira kuvandudza iyo hydrophilicity yeHPMC, nekudaro ichiwedzera mashandiro ayo ekuchengetedza mvura.
Zvinoenderana nezvinodiwa zveputty powder, kusarudza iyo chaiyo HPMC modhi inogona kuvandudza zvakanyanya mwero wekuchengetedza mvura yechigadzirwa.
2. Wedzera huwandu hweHPMC hwakawedzerwa
Kuti uwedzere kuvandudza kuchengetwa kwemvura kweputty powder, huwandu hweHPMC hwakawedzerwa hunogona kuwedzerwa zvakakodzera. Nekuwedzera chikamu cheHPMC, kugovera kwayo mu putty kunogona kuvandudzwa uye kugona kwayo kuchengetedza mvura kunogona kuvandudzwa.
Kuwedzera kwehuwandu hwekuwedzera kuchaitawo kuti kuwedzera kwe viscosity ye putty powder. Naizvozvo, zvinodikanwa kuve nechokwadi chekuchengetedza mvura zvakanaka uchidzivirira yakawandisa viscosity kukanganisa kuita kwekuvaka.
3. Inonzwisisika formula dhizaini
Iyo formula dhizaini yeputty poda inokanganisa zvakananga kuchengetedza kwayo kwemvura. Mukuwedzera kune HPMC, kusarudzwa kwezvimwe zvikamu muhuwandu (zvakadai semazadza, adhesives, nezvimwewo) zvichakanganisawo kuchengetwa kwemvura yeputty powder.
Fineness uye chaiyo nzvimbo yepasi: Iyo particle size uye chaiyo nzvimbo yenzvimbo.iyo filler in putty powder ichakanganisa kushambadza kwemvura. Fine poda uye mafirita ane yakakwirira chaiyo nzvimbo yepamusoro anogona kutora mvura zvirinani uye kuderedza kurasikirwa kwemvura. Naizvozvo, sarudzo inonzwisisika yekuzadza chidimbu saizi chinhu chakakosha mukuvandudza kuchengetwa kwemvura.
Sarudzo yesimende zvinongedzo: Kana iyo putty poda iine simende uye zvimwe zvinongedzo, iyo hydration reaction yesimende inogona kupedza imwe mvura. Naizvozvo, zvinodikanwa kukwidziridza kuchengetwa kwemvura kweputty nekugadzirisa chiyero chesimende kune kuzadza.
4. Dzora nzira yekusanganisa
Iyo yekusanganisa maitiro inewo imwe mhedzisiro pakuchengetedza mvura kweputty powder. Kusanganisa kunonzwisisika kunogona kubatsira HPMC kuparadzira zvizere uye kusanganisa zvakaenzanirana nezvimwe zvinongedzo kudzivirira mutsauko mukuchengetwa kwemvura kunokonzerwa nekusanganiswa kusina kuenzana.
Yakakodzera nguva yekusanganisa uye nekukurumidza: Kana nguva yekusanganisa ipfupi, HPMC inogona kunge isina kunyungudika zvizere, izvo zvinokanganisa mashandiro ayo ekuchengetedza mvura. Kana kukurumidza kusanganiswa kwakanyanyisa, mhepo yakawandisa inogona kuiswa, inokanganisa kunaka kweputty powder. Nokudaro, kutonga kwakanaka kwekusanganiswa kunobatsira kuvandudza kuchengetwa kwemvura yose yeputty powder.
5. Kudzora humidity kwezvakatipoteredza uye tembiricha
Kuchengetwa kwemvura kweputty poda hakungoenderane chete neyakabikwa uye fomula, asi zvakare yakabatana zvakanyanya nehunyoro uye tembiricha yenzvimbo yekuvaka. Munzvimbo ine tembiricha yakakwira uye yakaderera humidity, hunyoro hweputty hunyoro huri nyore kubuda, huchiita kuti huwome nekukasira uye hunokanganisa maitiro ekuvaka.
Munguva yekuvaka, tembiricha yakakodzera uye humidity mamiriro anofanirwa kuchengetedzwa zvakanyanya sezvinobvira kudzivirira iyo putty poda kubva pakurasikirwa nemvura nekukurumidza. Kudzora kwakaringana tembiricha uye humidity kunogona zvakare kuvandudza zvisina kunanga kuchengetwa kwemvura kweputty poda.
6. Wedzera mvura inochengetedza mumiririri
Mukuwedzera kune HPMC, mamwe majekiseni ekuchengetedza mvura anogonawo kuonekwa seakawedzerwa kune putty powder, akadai semamwe mapolymers, polyvinyl alcohol, etc. Aya ekuchengetedza mvura anogona kuwedzera kuvandudza kuchengetwa kwemvura yeputty, kuwedzera nguva yekuvaka, uye kudzivirira putty kubva pakuoma uye kuputika nokukurumidza.
Nekudaro, kana uchiwedzera maajenti ekuchengetedza mvura, zvinofanirwa kutarisisa kuenderana kwavo neHPMC kuona kuti hapana maitiro akaipa anoitika kana kukanganisa kuita kwekuvaka kweputty.
7. Shandisa humidity control teknolojia
Mune dzimwe nguva dzakakosha, tekinoroji yekudzora humidity inogona kushandiswa kuwedzera kuvandudza kuchengetwa kwemvura kweputty poda. Semuenzaniso, kushandiswa kwemvura-based sealing membranes kana humidification michina inogona kunyatso kudzikisa kurasikirwa kwemvura ye putty panguva yekuvaka, kuchengetedza kunyorova kweiyo putty layer, nekudaro kuwedzera nguva yekuvaka kwayo nekuvandudza kuchengetedza kwemvura.
Kuchengetwa kwemvura kweputty powder kunogona kuvandudzwa nekusarudza rudzi rwakanaka rweHPMC, kuwedzera huwandu hwekuwedzera, kugadzirisa fomu, kuvandudza nzira yekusanganisa, kudzora humidity uye tembiricha yenzvimbo yekuvaka, uye mamwe matanho. Sechikamu chakakosha cheputty powder, kuvandudzwa kwekuchengetedzwa kwemvura kweHPMC hakugoni kungovandudza kushanda kwekuvaka, asiwo kuvandudza hutano hwekupedzisira hwekuvaka uye kuderedza kukanganisa uye matambudziko mukuvaka. Naizvozvo, kunzwisisa uye kugona nzira idzi dzekuvandudza mwero wekuchengetedza mvura kune zvakakosha zvakakosha kumabhizinesi anogadzira uye anoshandisa putty poda.
Nguva yekutumira: Mar-20-2025