Ungasarudza sei hydroxypropyl methylcellulose?

Musiyano uripo pakati pehydroxypropyl methylcellulose(HPMC) ine kana isina S?

1. HPMC yakakamurwa kuva mhando yekukurumidza uye mhando yekupararira nekukurumidza

Rudzi rweHPMC runopararira nekukurumidza rune bhii S. Munguva yekugadzira, glyoxal inofanira kuwedzerwa.

Rudzi rweHPMC instant haruwedzere mabhii, akadai sekuti “100000″ ndirwo “100000 viscosity fast dispersion type HPMC”.

2. Kana paine kana pasina S, hunhu hwacho hwakasiyana

HPMC inopararira nekukurumidza inopararira nekukurumidza mumvura inotonhora yonyangarika mumvura. Panguva ino, mvura haina viscosity, nekuti HPMC inongopararira mumvura chete, uye hapana kunyungudika chaiko. Mushure memaminitsi angangoita maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira mvura inonamira yakajeka. Colloid gobvu.

HPMC Instant inogona kupararira nekukurumidza mumvura inopisa panosvika 70°C. Kana tembiricha yadzikira kusvika patembiricha yakati, viscosity inooneka zvishoma nezvishoma kusvika yaumbwa colloid yakajeka ine viscous.

3. Chinangwa chakasiyana neS kana kuti kwete

HPMC yekukurumidza inogona kushandiswa chete muupfu hweputty nemortar. Mumaglue emvura, macoatings uye zvinhu zvekuchenesa, kuungana kunoitika uye hakugone kushandiswa.

HPMC inopararira nekukurumidza ine mashandisirwo akasiyana-siyana. Inogona kushandiswa muupfu hweputty, mortar, liquid glue, pendi, uye zvinhu zvekuwachisa pasina chero chipingamupinyi.

Nzira yekunyungudutsa

1. Tora huwandu hunodiwa hwemvura inopisa, uiise mumudziyo woipisa kusvika pamusoro pe80°C, wobva wawedzera chigadzirwa ichi zvishoma nezvishoma uchikurunga zvishoma nezvishoma. Cellulose inoyangarara pamusoro pemvura pakutanga, asi inopararira zvishoma nezvishoma kuti iite slurry yakafanana. Tonhodza mushonga nekukurunga.

2. Kana kupisa 1/3 kana 2/3 yemvura inopisa kusvika pamusoro pe85°C, wedzera cellulose kuti uwane slurry yemvura inopisa, wobva wawedzera mvura inotonhora yasara, ramba uchikurunga, wotonhodza musanganiswa wacho.

3. Cellulose ine nhamba yemesh yakatsetseka, uye inowanikwa sechidimbu chidiki chimwe chete muupfu hwakasanganiswa, uye inonyunguduka nekukurumidza kana ikasangana nemvura kuti igadzire viscosity inodiwa.

4. Wedzera cellulose zvishoma nezvishoma uye zvakaenzana patembiricha yemumba, uye ramba uchikurunga panguva yekuwedzera kusvika mvura yabuda pachena.

Ndezvipi zvinhu zvinokanganisa kuchengetwa kwemvura kwehydroxypropyl methylcellulose?

Kuchengetwa kwemvura kwechigadzirwa che hydroxypropyl methylcellulose HPMC pachako kunowanzo kanganiswa nezvinhu zvinotevera:

1. Kubatana kwe ether ye cellulose HPMC

HPMC ine mhinduro dzakafanana ine kupararira kwakafanana kwemapoka emethoxy nehydroxypropoxy uye ine mvura yakawanda inochengetwa.

2. Kupisa kwegel yekupisa yeCellulose ether HPMC

Kana tembiricha yekupisa yegel yakakwira, mwero wekuchengetedza mvura wakakwira; zvikasadaro, mwero wekuchengetedza mvura wakaderera.

3. Kusviba kwe ether ye cellulose HPMC

Kana viscosity yeHPMC ikawedzera, mwero wekuchengetedza mvura unowedzerawo; kana viscosity yasvika padanho rakati, kuwedzera kwemwero wekuchengetedza mvura kunowanzova kushoma.

Kuwedzera kwehuwandu hwekuwedzera kweCellulose ether HPMC

Kana huwandu hwe cellulose ether HPMC hwakawedzera, mwero wekuchengetedza mvura wakakwira uye mhedzisiro yekuchengetedza mvura iri nani.

Muchikamu che 0.25-0.6%, mwero wekuchengetedza mvura unowedzera nekukurumidza nekuwedzera kwehuwandu hwekuwedzera; kana huwandu hwekuwedzera huchiwedzera, mwero wekuchengetedza mvura unowedzera zvishoma nezvishoma.