1. Sunan samfur:
01. Sunan sinadaran: hydroxypropyl methylcellulose
02. Cikakken suna a Turanci: Hydroxypropyl Methyl Cellulose
03. Gajartawar Ingilishi: HPMC
2. Halin jiki da sinadarai:
01. Bayyanar: fari ko kashe-fari foda.
02. Girman barbashi; ƙimar wucewa na raga 100 ya fi 98.5%; Matsakaicin adadin raga na 80 ya fi 100%.
03. Carbonization zafin jiki: 280～300 ℃
04. Bayyanar yawa: 0.25 ~ 0.70 / cm3 (yawanci a kusa da 0.5g / cm3), ƙayyadaddun nauyi 1.26-1.31.
05. Zazzabi mai launi: 190 ℃ 200 ℃
06. Tashin hankali: 2% maganin ruwa shine 42 ~ 56dyn/cm.
07. Mai narkewa a cikin ruwa da wasu kaushi, kamar ethanol / ruwa, propanol / ruwa, trichloroethane, da dai sauransu a daidai rabbai.
Maganin ruwa mai ruwa-ruwa suna aiki sama. Babban nuna gaskiya, aikin barga, zafin gel na samfurori tare da ƙayyadaddun bayanai daban-daban
Daban-daban, da solubility ya canza tare da danko, ƙananan danko, mafi girma da solubility, aikin daban-daban na bayani dalla-dalla na hydroxypropyl methylcellulose (HPMC) yana da wasu bambance-bambance, rushewar hydroxypropyl methylcellulose (HPMC) a cikin ruwa ba ta shafi tasirin darajar PH ba. .
08. Tare da raguwar abun ciki na methoxyl, ma'anar gel yana ƙaruwa, ƙarancin ruwa yana raguwa, kuma aikin saman hydroxypropyl methylcellulose (HPMC) yana raguwa.
09. Hydroxypropyl methylcellulose (HPMC) Har ila yau yana da ikon yin kauri, juriya na gishiri, ƙarancin ash foda, kwanciyar hankali na PH, riƙewar ruwa, kwanciyar hankali mai girma, kyakkyawan kayan samar da fim, da kuma yawan juriya na enzyme, halayen watsawa kamar jima'i da adhesiveness.
Uku, halayen hydroxypropyl methylcellulose (HPMC):
Samfurin ya haɗu da yawa na zahiri da sinadarai don zama samfuri na musamman tare da amfani da yawa, kuma kaddarorin iri-iri sune kamar haka:
(1) Riƙewar ruwa: Yana iya ɗaukar ruwa a saman fage kamar allunan siminti na bango da bulo.
(2) Samuwar Fim: Zai iya samar da fim mai haske, mai tauri da taushi tare da kyakkyawan juriya mai.
(3) Narkewar kwayoyin halitta: Samfurin yana narkewa a cikin wasu abubuwan kaushi na halitta, kamar ethanol/ruwa, propanol/water, dichloroethane, da tsarin kaushi mai kaushi guda biyu.
(4) Thermal Gelation: Lokacin da maganin ruwa na samfurin ya yi zafi, zai samar da gel, kuma gel ɗin da aka kafa zai sake zama mafita bayan sanyaya.
(5) Ayyukan sararin samaniya: Samar da aikin saman a cikin bayani don cimma burin da ake bukata da kuma colloid mai kariya, da kuma daidaitawar lokaci.
(6) Suspension: Yana iya hana hazo na m barbashi, don haka hana samuwar laka.
(7) Colloid mai kariya: yana iya hana ɗigon ruwa da barbashi daga haɗuwa ko coagulation.
(8) Adhesiveness: An yi amfani da shi azaman manne don pigments, kayan taba, da kayan takarda, yana da kyakkyawan aiki.
(9) Ruwa mai narkewa: Za'a iya narkar da samfurin a cikin ruwa a cikin nau'i daban-daban, kuma iyakar girmansa yana iyakance ne kawai ta danko.
(10) Rashin inertness wanda ba na ionic ba: Samfurin shine ether wanda ba na ionic cellulose, wanda baya haɗuwa da gishirin ƙarfe ko wasu ions don samar da hazo maras narkewa.
(11) Amintaccen tushen acid: dace don amfani a cikin kewayon PH3.0-11.0.
(12) Rashin ɗanɗano da wari, wanda ba ya shafar metabolism; ana amfani da su azaman abinci da ƙari na miyagun ƙwayoyi, ba za a daidaita su cikin abinci ba kuma ba za su samar da adadin kuzari ba.
4. Hanyar rushewar Hydroxypropyl methylcellulose (HPMC):
Lokacin da aka ƙara samfuran hydroxypropyl methylcellulose (HPMC) kai tsaye a cikin ruwa, za su yi taɗi sannan kuma su narke, amma wannan narkar yana da sannu a hankali kuma yana da wahala. Akwai hanyoyin warwarewa guda uku da aka ba da shawarar a ƙasa, kuma masu amfani za su iya zaɓar hanya mafi dacewa gwargwadon yadda ake amfani da su:
1. Hanyar ruwan zafi: Tunda hydroxypropyl methylcellulose (HPMC) ba ya narkewa a cikin ruwan zafi, matakin farko na hydroxypropyl methylcellulose (HPMC) na iya zama daidai a cikin ruwan zafi, sa'an nan kuma idan an sanyaya, uku Hanyar da aka saba da ita an bayyana su kamar haka. kamar haka:
1). Sanya adadin ruwan zafi da ake buƙata a cikin kwandon kuma zafi shi zuwa kusan 70 ° C. A hankali ƙara hydroxypropyl methylcellulose (HPMC) ƙarƙashin jinkirin motsawa, hydroxypropyl methylcellulose (HPMC) ya fara iyo a saman ruwa, sannan a hankali ya samar da slurry, kwantar da slurry a ƙarƙashin motsawa.
2). Yi zafi 1/3 ko 2/3 (adadin da ake buƙata) na ruwa a cikin akwati kuma zafi shi zuwa 70 ° C. Dangane da hanyar 1), a watsar da hydroxypropyl methylcellulose (HPMC) don shirya slurry ruwan zafi Sannan ƙara sauran adadin ruwan sanyi ko ruwan kankara a cikin akwati, sannan ƙara hydroxypropyl methylcellulose (HPMC) wanda aka ambata a sama. ruwan sanyi, da motsawa, sannan a kwantar da cakuda.
3). Ƙara 1/3 ko 2/3 na adadin ruwan da ake bukata a cikin akwati kuma zafi shi zuwa 70 ° C. Bisa ga hanyar 1), watsa hydroxypropyl methylcellulose (HPMC) don shirya ruwan zafi mai zafi; Sauran adadin ruwan sanyi ko kankara sai a saka a cikin ruwan zafi mai zafi sannan a sanyaya cakuda bayan an motsa.
2. Foda hadawa Hanyar: hydroxypropyl methylcellulose (HPMC) foda barbashi da kuma daidai ko mafi girma adadin sauran powdery sinadaran suna cikakken tarwatsa ta bushe hadawa, sa'an nan narkar da a cikin ruwa, sa'an nan da hydroxypropyl methylcellulose Base cellulose (HPMC) za a iya narkar da ba tare da agglomeration. . 3. Hanyar da za a iya jujjuya kaushi mai ƙarfi: pre-watse ko rigar hydroxypropyl methylcellulose (HPMC) tare da kaushi mai ƙarfi kamar ethanol, ethylene glycol ko mai, sannan a narkar da shi cikin ruwa. A wannan lokacin, hydroxypropyl methylcellulose (HPMC) kuma za a iya narkar da su lafiya.
5. Babban amfani na hydroxypropyl methylcellulose (HPMC):
Hydroxypropyl methylcellulose (HPMC) za a iya amfani da a matsayin thickener, dispersant, emulsifier da film-forming wakili. Ana iya amfani da samfuran sa na masana'antu a cikin sinadarai na yau da kullun, kayan lantarki, resins na roba, gini da sutura.
1. Dakatar da polymerization:
A cikin samar da resins na roba irin su polyvinyl chloride (PVC), polyvinylidene chloride da sauran copolymers, ana amfani da suspension polymerization kuma ya zama dole don daidaita dakatarwar monomers hydrophobic a cikin ruwa. A matsayin polymer mai narkewa da ruwa, samfuran hydroxypropyl methylcellulose (HPMC) suna da kyakkyawan aiki na farfajiya kuma suna aiki azaman wakili mai kariya na colloidal, wanda zai iya hana haɓakar ƙwayoyin polymer yadda ya kamata. Bugu da ƙari kuma, ko da yake hydroxypropylmethylcellulose (HPMC) ne mai ruwa-mai narkewa polymer polymer, shi ne kuma dan kadan mai narkewa a cikin hydrophobic monomers da kuma ƙara porosity na monomers daga abin da polymeric barbashi da ake samar, sabõda haka, zai iya Ba da polymers da kyakkyawan ikon cire saura monomers. da kuma inganta sha na plasticizers.
2. A cikin tsari na kayan gini, ana iya amfani da hydroxypropyl methylcellulose (HPMC) don:
1). Adhesive da caulking wakili na tushen gypsum tef;
2). Daure na tubalin siminti, fale-falen buraka da tushe;
3). stucco na tushen plasterboard;
4). Plaster tsarin da aka kafa da siminti;
5). A cikin dabarar fenti da cire fenti.
Lokacin aikawa: Mayu-24-2023