Kushandiswa kweHPMC mune putty poda

1. Chii chakakodzera viscosity yeHPMC?

——Mhinduro: Kazhinji, 100,000 yuan inokwana putty powder. Zvinodiwa zvedhaka zvakakwirira, uye 150,000 yuan inodiwa kuti ishandiswe nyore. Uyezve, iyo inonyanya kukosha basa reHPMC ndeyekuchengetedza mvura, inoteverwa nekukora. Mune putty powder, chero bedzi kuchengetwa kwemvura kwakanaka uye viscosity yakaderera (70,000-80,000), zvinogonekawo. Zvechokwadi, iyo yakakwirira viscosity, zviri nani kuchengetedza mvura. Kana iyo viscosity inopfuura 100,000, iyo viscosity inokanganisa kuchengetwa kwemvura. Hazvina zvakawanda zvakare.

2. Ndeapi makuru ehunyanzvi zviratidzo zveHPMC?

——Mhinduro: Hydroxypropyl yemukati uye viscosity, vazhinji vashandisi vane hanya neizvi zviratidzo zviviri. Avo vane yakakwira hydroxypropyl zvemukati kazhinji vane zvirinani kuchengetedza mvura. Iyo ine high viscosity ine nani kuchengetedza mvura, zvishoma (kwete zvachose), uye iyo ine viscosity yakakwirira inoshandiswa zviri nani mumatope esimende.

3. Ndeipi basa guru rekushandiswa kweHPMC mu putty powder, uye inoitika nemakemikari?

——Mhinduro: Mune putty poda, HPMC inobata mabasa matatu ekukora, kuchengetedza mvura uye kuvaka. Kukora: Cellulose inogona kukobvu kumisa uye kuchengeta yunifomu yemhinduro kumusoro nekudzika, uye kuramba kudonha. Kuchengetwa kwemvura: ita kuti putty poda iome zvishoma nezvishoma, uye batsira madota e calcium kuti aite pasi pekuita kwemvura. Kuvaka: Cellulose ine lubricating effect, iyo inogona kuita kuti putty powder ive nekuvakwa kwakanaka. HPMC haitore chikamu mune chero chemakemikari maitiro, asi inongotamba yebetsero. Kuwedzera mvura kune putty powder uye kuiisa pamadziro ndeyekuita kwemakemikari, nokuti zvinhu zvitsva zvinoumbwa. Kana iwe ukabvisa putty powder pamadziro kubva pamadziro, uikuya muupfu, uye uishandise zvakare, haigoni kushanda nokuti zvinhu zvitsva (calcium carbonate) zvakagadzirwa. ) zvakare. Izvo zvikamu zvikuru zveash calcium powder ndezvi: musanganiswa weCa (OH) 2, CaO uye zvishoma zveCaCO3, CaO+H2O=Ca(OH)2 -Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium iri mumvura nemhepo Pasi pechiito che CO2, calcium carbonate inogadzirwa, nepo HPMC inongochengeta chero mhinduro yemvura, haibatsiri mvura.

4. HPMC isiri-ionic cellulose ether, saka chii chisiri-ionic?

——Mhinduro: Mukutaura kwevasina-ioni zvinhu zvisingaite ioni mumvura. Ionization inoreva nzira iyo electrolyte inopatsanurwa kuita ayoni anochaji anogona kufamba akasununguka mune chaiyo solvent (semvura, doro). Semuenzaniso, sodium chloride (NaCl), munyu watinodya zuva rega rega, unonyunguduka mumvura uye ionizes kugadzira zvakasununguka sodium ion ions (Na+) iyo inochajiswa zvakanaka uye chloride ions (Cl) ine mhosva yakaipa. Kureva kuti, kana HPMC yaiswa mumvura, haizoparadzanise mumaoni anochajwa, asi aripo muchimiro chemamorekuru.

5. Pane hukama huripo pakati pekudonha kweputty powder uye HPMC?

--Mhinduro: Kurasikirwa kwehupfu hweputty powder kunonyanya kuenderana nehutano hweash calcium, uye haina zvishoma kuita neHPMC. Iyo yakaderera calcium ye grey calcium uye chiyero chisina kukodzera cheCaO uye Ca (OH) 2 mu grey calcium inokonzera kurasikirwa kweupfu. Kana iine chimwe chekuita neHPMC, zvino kana kuchengetwa kwemvura kweHPMC kusina kunaka, kunokonzerawo kurasikirwa kweupfu.

6. Nzira yekusarudza yakakodzeraHPMCnezvinangwa zvakasiyana?

——Mhinduro: Kushandiswa kweputty powder: zvinodiwa zvishoma, uye viscosity ndeye 100,000, izvo zvakakwana. Chinhu chakakosha kuchengetedza mvura zvakanaka. Kushandiswa kwedhaka: zvinodiwa zvepamusoro, high viscosity, 150,000 zviri nani. Kushandiswa kweglue: zvigadzirwa zvekukurumidza zvine viscosity yakakwirira zvinodiwa.