Hydroxypropyl methylcellulosetare da danko na 100,000 gabaɗaya ya isa a cikin foda, yayin da turmi yana da buƙatu mafi girma don danko, don haka ya kamata a zaɓi danko na 150,000 don amfani mafi kyau. Mafi mahimmancin aikinhydroxypropyl methylcelluloseshi ne rike ruwa, sai kauri. Saboda haka, a cikin putty foda, idan dai an sami nasarar riƙe ruwa, ƙananan danko kuma yana da karɓa. Gabaɗaya magana, mafi girman danko, mafi kyawun riƙewar ruwa, amma lokacin da danko ya wuce 100,000, tasirin danko akan riƙe ruwa ba shi da mahimmanci.
Hydroxypropyl methylcellulosegabaɗaya an raba shi zuwa nau'ikan masu zuwa gwargwadon danko:
1. Low danko: 400 viscosity cellulose, yafi amfani da kai matakin turmi.
Ƙananan danko, mai kyau mai kyau, bayan ƙarawa zai kula da riƙewar ruwa, ruwan da aka yi da ruwa ba a bayyane yake ba, raguwa yana da ƙananan, raguwa yana raguwa, kuma yana iya tsayayya da lalatawa, haɓaka ruwa da famfo.
2. Matsakaici-ƙananan danko: 20,000-50,000 danko cellulose, yafi amfani da gypsum kayayyakin da caulking jamiái.
Ƙananan danko, riƙewar ruwa, kyakkyawan aikin gine-gine, ƙarancin ruwa.
3. Matsakaici danko: 75,000-100,000 danko cellulose, yafi amfani da ciki da kuma na waje bango putty.
Matsakaicin danko, kyakkyawan riƙewar ruwa, kyakkyawan gini da kaddarorin rataye
4. High danko: 150,000-200,000, yafi amfani da polystyrene barbashi rufi turmi manne foda da vitrified micro-bead rufi turmi. Babban danko, babban riƙewar ruwa, turmi ba shi da sauƙin faɗuwa, gudana, inganta ginin.
Gabaɗaya magana, mafi girman danko, mafi kyawun riƙewar ruwa. Sabili da haka, yawancin abokan ciniki za su zaɓi yin amfani da cellulose na matsakaici-danko (75,000-100,000) maimakon matsakaici-ƙananan danko (20,000-50,000) don rage adadin da aka kara kuma don haka kula da farashin.
Hydroxypropyl methylcellulose (HPMC)polymer semisynthetic ne wanda aka saba amfani dashi a masana'antu daban-daban, gami da gini, magunguna, da samar da abinci. Dankowar HPMC wani muhimmin dukiya ne wanda ke ƙayyade aikinsa a aikace-aikace daban-daban.
Matsakaicin danko na HPMC yana tasiri da abubuwa kamar matakin maye gurbin (DS), nauyin kwayoyin halitta, da tattarawar maganin HPMC. Gabaɗaya, yayin da matakin maye gurbin da nauyin kwayoyin halitta na HPMC ke ƙaruwa, haka ma danƙon sa yake ƙaruwa.
Ana samun HPMC a cikin kewayon makin danko, yawanci ana aunawa dangane da "nauyin kwayoyin halitta" ko " abun ciki na methoxyl." Ana iya canza danko na HPMC ta zaɓar matakin da ya dace ko kuma ta daidaita ma'auni na maganin HPMC.
A cikin aikace-aikacen gine-gine, ana amfani da HPMC tare da danko mafi girma sau da yawa don inganta aikin aiki da riƙe ruwa na kayan tushen siminti. A cikin magunguna, danko abu ne mai mahimmanci don sarrafa adadin sakin kayan aiki a cikin magungunan ƙwayoyi.
Saboda haka, fahimtar danko na hydroxypropyl methylcellulose yana da mahimmanci don zaɓar madaidaicin maki don takamaiman aikace-aikacen da tabbatar da halayen aikin da ake so.
Lokacin aikawa: Mayu-30-2024