Codsiga hydroxypropyl methylcellulose HPMC (darajada kiimikada maalinlaha ah)

1. Kiimikada darajada maalinlaha ah ee hydroxypropyl methylcellulose nooca degdegga ah waa budo cad ama wax yar oo huruud ah, waana mid aan ur lahayn, dhadhamin iyo aan sun ahayn. Waxaa lagu milmi karaa biyo qabow iyo dareere isku dhafan oo walxaha organic ah si loo sameeyo xal hufan. Xalka aqueous wuxuu leeyahay dhaqdhaqaaqa dusha sare, daahfurnaanta sare iyo xasilloonida xooggan, iyo kala diristeeda biyaha ma saameynayso pH.

2. Saamaynta dhumucda iyo ka-hortagga ka-hortagga ee shaambo iyo jel-ka-xajinta, haynta biyaha iyo samaynta aflaanta wanaagsan ee timaha iyo maqaarka. Iyada oo kor u kaca fiiqan ee alaabta ceeriin ee aasaasiga ah, isticmaalka cellulose (daaweeyaha ka-hortagga ka-hortagga) ee shaambada iyo qubeyska ayaa si weyn u yareyn kara kharashka waxayna gaari kartaa saameynta la rabo.

3. Tilmaamaha iyo faa'iidooyinka kiimikaad maalinlaha ah ee nooca degdegga ah ee hydroxypropyl methylcellulose:

(1), xanaaq hoose, heerkulka sare iyo aan sunta ahayn;
(2) Xasilooni ballaaran oo pH ah, taas oo xaqiijin karta xasilloonideeda inta u dhaxaysa pH 3-11;
(3), xoojinta qaboojinta;
(4), kordhiso xumbo, xasilinta xumbo, hagaajinta dareenka maqaarka;
(5) Si wax ku ool ah u wanaaji dheecaanka nidaamka.

4. Baaxadda codsiga ee darajada maalinlaha ah ee kiimikada hydroxypropyl methylcellulose nooca degdegga ah:

Loo isticmaalo shaambo, maydhista jidhka, nadiifiyaha wejiga, labeenta, kareemka, jel, toner, timaha qaboojiyaha, alaabta habaynta, dawada cadayga, candhuufta, biyaha xumbo-cayaaraha.

5. Doorka maalinlaha ah ee kiimikaad darajada hydroxypropyl methylcellulose nooca degdegga ah

Codsiyada la isku qurxiyo, waxaa inta badan loo isticmaalaa dhumucdiisuna, xumbo, emulsification deggan, kala firidhsan, adhesion, hagaajinta filimada-samaynta iyo guryaha haynta biyaha ee la isku qurxiyo, wax soo saarka viscosity sare waxaa loo isticmaalaa dhumucdiisuna, wax soo saarka hoose-viscosity inta badan waxaa loo isticmaalaa ganaax. kala firidhsan iyo samaynta filimada.

6. Tignoolajiyada heerka kiimikaad ee maalinlaha ah nooca degdegga ah ee hydroxypropyl methylcellulose:

Shirkaddayada hydroxypropyl methylcellulose waxay ku habboon tahay warshadaha kiimikaad ee maalinlaha ah oo leh viscosity u dhexeeya 100,000 s ilaa 200,000 s. Marka loo eego qaacidadaada, cadadka hydroxypropyl methylcellulose ee lagu daray alaabta guud ahaan waa 3 ilaa 5 kunkiiba.