Hydroxypropyl Methyl Cellulose ine imwe mhedzisiro pakusimba kwesamende dhaka

Muchikamu chekutanga chesimende dhaka, hydroxypropyl methyl cellulose inogona kuderedza simba zvishoma. Izvi zvinodaro nekuti ichawedzera porosity yedhaka kune imwe nhanho uye kushambadza chikamu chemvura, nekudaro ichikanganisa yakajairwa hydration reaction process ye simenti uye ichitadzisa kuvandudzwa kwesimba rekutanga kusvika pamwero wakati.

1. Kubata kwenguva refu

Nekufamba kwenguva, kukanganisa kwehydroxypropyl methyl cellulose pane simba resamende dhaka rakawanda rakaoma. Kune rumwe rutivi, simba rayo rekuchengetedza mvura rinogona kuvimbisa kuti simenti inoramba iine hydrate kwenguva yakareba, kuitira kuti simba rive rakagadzirwa zvizere. Kune rumwe rutivi, inogona kuvandudza chimiro chemukati chedhaka, kuwedzera kugadzikana kwayo uye kusimba, uye kuva nemigumisiro yakanaka pane simba kune imwe nhanho.

Kazhinji, kukanganisa kwehydroxypropyl methyl cellulose pane simba resamende dhaka haisi imwe chete. Zvinhu zvakawanda zvinoda kutariswa zvizere, uye kugadzirisa zvine musoro uye zvidzoreso zvinofanirwa kuitwa zvinoenderana nemamiriro chaiwo mukushandiswa chaiko.

Hydroxypropyl methyl cellulose (HPMC) inoita basa rakakosha mudhaka.

1. Function

Kuchengetedza mvura

1. Inogona kudzivirira mvura iri mudhaka kuti irege kurasikirwa nekukurumidza uye kuchengetedza dhaka rine yakakodzera kuvaka uye kushanda kwekushanda kwenguva yakareba. Izvi zvinobatsira kuve nechokwadi kuti dhaka harizotsemuka uye simba harizoderedzwa nekuda kwekukurumidza kubuda kwemvura panguva yekuzora, masonry uye mamwe maitiro.
2. Kuchengetwa kwemvura kwakanaka kunogona kubvumira simenti kuti ive nenguva yakakwana ye hydration reaction, nekudaro ichivandudza simba uye kusimba kwedhaka.

Kukora pfuma

1. Wedzera viscosity yedhaka kuitira kuti zvive nyore kuvezwa zvakaenzana panguva yekuvaka uye kudzivirira kudonha. Panguva imwecheteyo, iyo yakakora dhaka inogona kunamatira zviri nani kune chigadziko chepamusoro uye kugadzirisa kunamatira.
2. Inobatsira kuvandudza sag resistance yematope. Kunyanya kana uchigadzira pamadziro akachinjika kana sirin'i, inogona kuve nechokwadi kuti dhaka haritsvedzeri nekuda kwegiravhiti.

Vandudza kushanda

1. Ita kuti dhaka ive nani kushanda uye kuve nyore kumutsa, kutakura uye kuvaka. Vashandi vanogona kuchengetedza kushanda nesimba panguva yekushanda uye nekuvandudza kushanda kwekuvaka.
2. Inogona kuderedza kuputika uye kupera kwedhaka panguva yekuvaka uye kuchengetedza nzvimbo yekuvaka yakachena.

Vandudza kusimba

1. Wedzera kupikisa kwechando uye kusamira kwedhaka. Munzvimbo dzinotonhora, HPMC inogona kudzivirira mvura iri mudhaka kubva kuchando uye kuwedzera uye kuparadza chimiro; munzvimbo dzine hunyoro, inogona kudzivirira mvura kuti isapinda uye kudzivirira zvivakwa kubva mukukukurwa kwemvura.
2. Inobatsira kuderedza shrinkage uye kuputika kwedhaka uye kuwedzera hupenyu hwebasa rezvivakwa.

1. Kungwarira pakushandisa

Dosage control

1. Iyo dosage yeHPMC inofanirwa kugadziridzwa zvine musoro zvichienderana nezvinhu zvakaita semhando yedhaka, zvinodiwa zvekuvaka uye mamiriro ekunze. Kazhinji kutaura, yakaderera dosage inogona kusakwanisa kuita basa rayo rakakodzera, nepo yakawandisa dosi inogona kukanganisa simba uye zvimwe zvimiro zvedhaka.
2. Mukushandiswa chaiko, iyo yakakwana dosage inogona kutariswa kuburikidza nekuyedza.

Uniform kusanganisa

1. Kana uchiwedzera HPMC, inofanirwa kuve nechokwadi kuti yakanyatso mutswa zvakaenzana kuitira kuti itambe yakanakisa mhedzisiro mudhaka. Mechanical kubvongodza inogona kushandiswa, uye nguva yokunyandura haifaniri kuva pfupi zvikuru.

Kuchengetedza mamiriro

1. HPMC inofanira kuchengetwa munzvimbo yakaoma uye inofefetera kudzivirira hunyoro uye zuva rakananga. Tembiricha yekuchengetera kazhinji haifanire kudarika 30°C kudzivirira kukanganisa kushanda kwayo.
2. Panguva yekuchengetedza uye kushandiswa, kutarisisa kunofanirwa kubhadharwa kudzivirira kusangana nemamwe makemikari kudzivirira kuita kwakashata.