Hydroxypropyl Methylcellulose (HPMC) isiri-ionic cellulose ether inoshandiswa zvakanyanya mukuvaka zvinhu, kunyanya mumatope akaoma, adhesives uye machira. Iyo viscosity yeHPMC ndeimwe yeayo akakosha ekuita zviratidzo mumashandisirwo ekuvaka uye ine yakakosha mhedzisiro pakushanda, kuchengetwa kwemvura uye michina yemidziyo.
Hukama pakati pe viscosity yehydroxypropyl methylcellulose uye formula zvivakwa
Kushanda
Iyo viscosity yeHPMC inoita basa rakakosha mukushanda kwezvinhu zvekuvaka. Yakakwira viscosity HPMC inogona kuvandudza zvakanyanya kuenderana uye rheological zvimiro zvezvinhu, zvichibvumira kuti inyatso kunamatira kune substrate uye kuderedza sagging panguva yekuvaka. Semuenzaniso, mu ceramic tile adhesives, kushandiswa kwepamusoro-viscosity HPMC kunogona kuita kuti zvive nyore kuti glue iite yunifomu yekuputira pakati pematairi e ceramic uye substrate, nokudaro kuvandudza kushanda kwekuvaka uye kusungirirwa kwehutano.
Nekudaro, yakawandisa viscosity inogona kuita kuti application iwedzere kuoma, sezvo yakakwirira-viscosity zvinhu zvingave zvakanyanya kunetsa kumutsa nekupararira. Naizvozvo, zvinodikanwa kuti uwane chiyero pakati pe viscosity uye operability kuti uve nechokwadi chekuti zvinhu zvine kushanda zvakanaka uye zvinogona kusangana nezvinodiwa zveinjiniya.
Kuchengetedza mvura
Iwo ekuchengetedza mvura zvivakwa zveHPMC akakosha pakuomarara kwezvivakwa zvekuvaka. High viscosity HPMC ine simba rekuchengetedza mvura uye inokwanisa kuchengetedza unyoro muzvinhu kwenguva yakareba mushure mekuvaka. Izvi zvinonyanya kukosha kune simenti-yakavakirwa zvinhu, nekuti hunyoro hwakakwana hunogona kukurudzira hydration reaction yesimende uye kuvandudza kusimba uye kusimba kweiyo yakaoma zvinhu.
Mune gypsum-based materials, high viscosity HPMC inobatsirawo kudzivirira kurasikirwa kwemvura yakawandisa panguva yekuvaka, nokudaro kudzivisa kutsemuka uye matambudziko ekuderera. Kazhinji kutaura, HPMC ine viscosity yepamusoro ine mabhenefiti ari pachena mukuvandudza kuchengetwa kwemvura uye inokodzera maapplication anoda yakakwirira hunyoro kudzora.
Anti-sag uye anti-slip properties
Mumadziro ekupfekedza zvinhu uye anonamira mataira, iyo viscosity yeHPMC inewo yakakosha kukanganisa sag kuramba uye kutsvedza kuramba. High viscosity HPMC inogona kunyatso wedzera iyo thixotropy yezvinhu, zvichiita kuti iratidze yakakwira viscosity munzvimbo yakamira, nekudaro ichidzikisa kuyerera kwechinyorwa panzvimbo dzakamira. Iyi pfuma yakakosha pakuchengetedza kugadzikana kwejasi kana matiles panzvimbo yakatwasuka, zvichibatsira kuvandudza kunaka uye kugona kwekuvaka.
Air encapsulation uye bond simba
Iyo viscosity yeHPMC inokanganisawo kuwanda kwemhepo kuvharirwa muchinhu uye chekupedzisira chisungo simba. Yakakwira-viscosity HPMC inogona kuwedzera mhepo yemukati mune izvo zvinhu, nekudaro ichivandudza iyo vhoriyamu kugadzikana uye kupisa kwemafuta ekudzivirira. Nekudaro, yakawandisa mhepo yemukati inogona kuderedza density yechinhu, nekudaro ichikanganisa kusimba kwayo kwechisungo. Naizvozvo, kana uchisarudza HPMC, zvinodikanwa kunyatso tarisa maitiro eiyo viscosity pane zvimiro zvechinyorwa kuti ive nechokwadi chekuti zvinhu zvacho zvine mashandiro akanaka ekugadzirisa uye zvinogona kusangana nekupedzisira kwemuchina wekuita zvinodiwa.
Optimization uye kusarudzwa mumashandisirwo anoshanda
Mumashandisirwo anoshanda, vagadziri vezvinhu zvekuvaka vanowanzo kukwidziridza huwandu hwekushandisa uye viscosity yeHPMC kuburikidza nemiedzo uye ruzivo kuti isangane nezvinodiwa zvekushandisa chaiko. Kunyanya, akasiyana maficha ekushandisa anogona kunge aine zvakasiyana zvinodiwa zveHPMC viscosity. Semuyenzaniso, mumataira anonamira, yakakwira-viscosity HPMC inowanzo shandiswa kuwedzera kutsvedza kuramba, nepo mukupurasita dhaka, yepakati-viscosity HPMC inogona kusarudzwa kuti ifunge nezvese kushanda uye kuchengetwa kwemvura.
Maparamendi akadai sekugovera huremu hwemamorekuru, dhigirii rekutsiva (DS) uye molar degree rekutsinhanisa (MS) yeHPMC ichakanganisawo viscosity uye kuita kwayo. Naizvozvo, kana uchisarudza HPMC, kwete chete viscosity inofanirwa kutariswa, asi mamwe emakemikari zvimiro zvinofanirwawo kutariswa zvakakwana kuti ive nechokwadi chekushanda kwayo kwakakwana muzvivakwa zvekuvaka.
Iyo viscosity yehydroxypropyl methylcellulose ine simba rakakura pakuita kwayo muzvivakwa zvekuvaka. Nekusarudza zvine musoro uye nekugadzirisa viscosity yeHPMC, kushanda kwechinhu, kuchengetedza mvura, sag kuramba uye simba rekuvhara mweya zvinogona kuvandudzwa, nokudaro zvichivandudza kuita kwese uye kugona kwekuvaka kwezvinhu zvekuvaka. Mumashandisirwo anoshanda, HPMC ine viscosity yakakodzera inoda kusarudzwa zvinoenderana nezvakada zvinhu zvinodiwa uye mamiriro ekuvaka kuti iwane yakanakisa kuvaka mhedzisiro uye kusimba. Izvi hazvidi chete kunzwisisa kwakadzama kwemakemikari uye emuviri zvimiro zveHPMC, asi zvakare zvinoda musanganiswa weruzivo uye data rekuyedza mukushanda chaiko kuti ive nechokwadi chakakwana chekushanda kwezvinhu.
Nguva yekutumira: Jul-10-2024