1. Ndezvipi zviratidzo zvikuru zve hydroxypropyl methyl cellulose (HPMC)?
HPMC Hydroxypropyl hydroxide uye viscosity, vashandisi vazhinji vanonetseka nezvezviratidzo zviviri izvi. Kuchengetwa kwemvura kunowanzo kuve nani kune avo vane hydroxypropyl hydroxide yakawanda. Viscosity yakawanda, kuchengetedza mvura, zviri nani (pane kuti zvive zvakakwana), uye viscosity yakawanda, zviri nani kushandiswa mumota yesimende.
2. Ndeipi basa guru rekushandisa HPMC mu wall putty?
Muputty yemadziro, HPMC ine mabasa matatu: kukora, kuchengetedza mvura uye kuvaka.
Kukora: Cellulose inogona kukobvurwa kuti irambe yakamanikana uye ichichengetedza mvura yakafanana, uye kuti isatsvedzerere. Kuchengetwa kwemvura: ita kuti putty yemadziro iome zvishoma nezvishoma, uye kubatsira calcium yegrey kuti iite chiito pasi pemvura. Kuvakwa: Cellulose ine mafuta anozora, izvo zvinogona kuita kuti putty yemadziro ishande zvakanaka.
3. Kudonhedzwa kweputty yemadziro kune chekuita neHPMC here?
Kudonha kwewall putty kunonyanya kuenderana nemhando yecalcium yeash, asi kwete neHPMC. Kana huwandu hwecalcium mucalcium yeash uye chiyero cheCaO neCa(OH)2 mucalcium yeash zvisina kukodzera, zvichakonzera kurasikirwa nehupfu. Kana zvine chekuita neHPMC, saka kusachengetwa kwemvura zvakanaka kweHPMC kuchaitawo kuti hupfu hudonhe.
4. Hydroxypropyl methyl cellulose (HPMC) ingani mu wall putty?
Huwandu hweHPMC hunoshandiswa pakushandisa chaihwo hunosiyana zvichienderana nemamiriro ekunze, tembiricha, mhando yecalcium yemuno, fomura yeputty yemadziro, uye "mhando inodiwa nevatengi". Kazhinji, pakati pe4 kg ne5 kg. Semuenzaniso: Beijing wall putty inonyanya 5 kg; Guizhou inonyanya 5 kg muzhizha uye 4.5 kg muchando; Yunnan idiki, inowanzo 3 kg kusvika 4 kg nezvimwewo.
5. Chii chinonzi viscosity yakakodzera yehydroxypropyl methyl cellulose (HPMC)?
Putty yemadziro inowanzova 100,000, asi dhaka rinoda simba rakawanda, uye rinotora 150,000 kuti rishande. Uyezve, basa guru reHPMC kuchengetedza mvura, richiteverwa nekukora. Muputty yemadziro, chero bedzi kuchengetedza mvura kwakanaka, viscosity yakaderera (70-80,000), zvinogonekawo, zvechokwadi, viscosity yakakwira, uye kuchengetedza mvura kwakaderera. Kana viscosity ikadarika 100,000, viscosity haina simba pakuchengetedza mvura.
6. Ungasarudza sei hydroxypropyl methylcellulose (HPMC) yakakodzera kune zvinangwa zvakasiyana?
Kushandiswa kweputty yemadziro: chinodiwa chakaderera, viscosity i100,000, zvakakwana, chinhu chakakosha kuchengetedza mvura iri nani. Kushandiswa kwedhaka: zvinodiwa zvakanyanya, viscosity yakawanda, zviri nani pane 150,000, kushandisa glue: zvigadzirwa zvinonyunguduka nekukurumidza, viscosity yakawanda.
7. Kushandiswa kweHPMC mu wall putty, chii chinoita kuti wall putty ibudise mabubbles?
HPMC inoita mabasa matatu mu "wall putty": kukora, kuchengetedza mvura uye kuvaka. Usatore chikamu mune chero chiito. Zvikonzero zvemabubbles:
(1) Mvura yakawandisa inoiswa mukati.
(2) Rutivi rwepasi haruna kuoma, uye rumwe rutivi runokweshwa pamusoro parwo, izvo zviri nyorewo kupumha furo.
Nguva yekutumira: Ndira-07-2022