suma:
Cellulose ethers dzinoshandiswa zvakanyanya muindasitiri yekuvaka nekuda kwekuchengetedza kwavo mvura, kukora uye kubatana zvakanaka. Dzinovandudza kuyerera uye kugona kwekushandisa zvinhu zvakagadzirwa nesimende uye dzinovandudza mashandiro emuchina wekugadzira chigadzirwa chekupedzisira. Maputty anowanzo shandiswa muindasitiri yekuvaka kuzadza mitswe, maburi nezvimwe zvisina kunaka mumadziro nepadenga. Kushandiswa kwecellulose ethers muputty powders kunogona kuvandudza kushanda, nguva yekuisa uye mhando yese yechigadzirwa. Chinyorwa chino chichakurukura nezvemhedzisiro yemhando dzakasiyana dzemaputty ethers paputty powder.
Mhando dze ether dze cellulose:
Kune mhando dzakasiyana dze cellulose ethers dzinosanganisira methylcellulose (MC), hydroxypropylmethylcellulose (HPMC), ethylcellulose (EC) uye carboxymethylcellulose (CMC). HPMC icellulose ether inozivikanwa muindasitiri yekuvaka nekuda kwekuchengetedza kwayo mvura, kukora kwayo uye kunaka kwayo kwekunamatira. HPMC inouya mumhando dzakasiyana dze viscosities, kubva pakaderera kusvika pakakwirira.
Mhedzisiro ye cellulose ether pahupfu hwe putty:
Upfu hweputty hunoshandiswa kuzadza mitswe, maburi nezvimwe zvisina kunaka pamadziro nepadenga. Kushandiswa kwe cellulose ethers muupfu hweputty kunogona kuvandudza kushanda uye nguva yekugadzika kwechigadzirwa. Cellulose ether inogonawo kuvandudza kushanda uye kunamira kweputty powder. Izvi zvinotevera mhedzisiro ye viscosities dzakasiyana dze cellulose ethers paputty powder:
1. Kusviba kwakaderera kweHPMC:
Kusviba kushoma kweHPMC kunogona kuvandudza kuyerera uye kushanda kweputty powder. Zvinovandudzawo nguva yekugadzika kwechigadzirwa. Kusviba kushoma kweHPMC ine tembiricha yakaderera ye gelation, izvo zvinogona kudzivirira putty powder kuti isaome nekukurumidza. Inogonawo kuvandudza kunamira uye kubatana kwechigadzirwa. Kusviba kushoma kweHPMC kwakakodzera putty powder inoda kushanda zvakanaka uye kutsetseka.
2. Kusviba kwepakati HPMC:
HPMC ine viscosity yepakati nepakati inogona kuvandudza hunhu hwethixotropic hweputty powder. Inogona zvakare kuvandudza kuchengetedza mvura uye mashandiro ekubatanidza kwechigadzirwa. HPMC ine viscosity yepakati nepakati inogona kuvandudza hunhu hwemakanika echigadzirwa, senge simba uye kugara kwenguva refu. Yakakodzera putty powder inoda kuchengetedza mvura zvakanaka uye kubatana.
3. HPMC yakanyanya kusimba:
HPMC ine viscosity yakakura inogona kuvandudza kukora uye kushanda kweputty powder. Inogona zvakare kuvandudza kuchengetedza mvura uye kushanda kwebonding kwechigadzirwa. HPMC ine viscosity yakawanda inogona kuvandudza mashandiro emuchina wechigadzirwa, senge simba uye kugara kwenguva refu. Yakakodzera putty powder inoda kukora kwakanyanya uye kushanda kwekudzivirira kudonha.
mhedziso:
Cellulose ethers dzinoshandiswa zvakanyanya muindasitiri yekuvaka nekuda kwehunhu hwadzo hwakanaka hwekuchengetedza mvura, kukora uye kubatana. HPMC yave cellulose ether inozivikanwa muindasitiri yekuvaka nekuda kwehunhu hwayo hwakanaka. HPMC inouya mumhando dzakasiyana dze viscosities, kubva pakaderera kusvika pakakwirira. Kushandiswa kwe cellulose ethers dzine viscosities dzakasiyana kunogona kuvandudza mashandiro, nguva yekuisa, mashandiro ethixotropic, kuchengetedza mvura, mashandiro e bonding uye hunhu hwe mechanical ye putty powder. Kushandiswa kwe cellulose ethers kunogona kuvandudza mhando uye mashandiro e putty powders, zvichiita kuti dzikwanise kushandiswa zvakasiyana-siyana muindasitiri yekuvaka.
Nguva yekutumira: Chikunguru-20-2023