Hydroxypropyl methylcellulose (HPMC a takaice) ne mai muhimmanci gauraye ether, wanda shi ne wanda ba ionic ruwa-mai narkewa polymer, da aka yadu amfani da abinci, magani, yau da kullum sinadaran masana'antu, shafi, polymerization dauki da kuma yi a matsayin watsawa dakatar , thickening, emulsifying, stabilizing and adhesives, da dai sauransu, kuma akwai babban gibi a kasuwar cikin gida.
Saboda HPMC yana da kyau kwarai Properties kamar thickening, emulsification, film forming, m colloid, danshi riƙewa, mannewa, enzyme juriya da kuma rayuwa inertness, shi ne yadu amfani a coatings, polymerization halayen, ginin kayan, mai samar, textiles, abinci, magani. Abubuwan yumbu da ake amfani da su yau da kullun, na'urorin lantarki da iri na noma da sauran sassan.
Bkayan ulu
A cikin kayan gini, ana ƙara HPMC ko MC akan siminti, turmi, da turmi don haɓaka abubuwan gini da riƙon ruwa.
Ana iya amfani da HPMC akan:
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.
M don tayal yumbura
HPMC 15.3 sassa
Perlite 19.1 sassa
Fatty amides da cyclic thio mahadi sassa 2.0
Clay 95.4 sassa
Silica kayan yaji (22μ) 420 sassa
450.4 sassa na ruwa
Ana amfani da su a cikin siminti da aka haɗe da tubalin inorganic, tiles, duwatsu ko siminti:
HPMC (digiri na watsawa 1.3) 0.3 sassa
Catelan siminti 100 sassa
Yashi Silica 50 sassa
50 sassa na ruwa
Ana amfani dashi azaman ƙarar kayan gini mai ƙarfi na siminti:
Catelan siminti 100 sassa
Asbestos 5 sassa
Polyvinyl barasa gyara kashi 1
Calcium silicate 15 sassa
Clay 0.5 sassa
32 sassa na ruwa
HPMC 0.8 sassa
Masana'antar fenti
A cikin masana'antar fenti, ana amfani da HPMC galibi a cikin fenti na latex da abubuwan fentin fenti mai narkewa da ruwa a matsayin wakili mai ƙirƙirar fim, mai kauri, emulsifier da stabilizer.
Dakatar da Polymerization na PVC
Filin da ya fi yawan amfani da samfuran HPMC a cikin ƙasata shine dakatarwar polymerization na vinyl chloride.A cikin dakatarwar polymerization na vinyl chloride, tsarin watsawa kai tsaye yana rinjayar ingancin samfurin PVC guduro da sarrafawa da samfurori;zai iya inganta thermal kwanciyar hankali na guduro da kuma sarrafa barbashi size rarraba (wato daidaita yawa na PVC).Adadin HPMC yana lissafin 0.025% ~ 0.03% na fitowar PVC.
A PVC guduro shirya ta high quality-HPMC, ban da tabbatar da cewa wasan kwaikwayon ya hadu da kasa misali, kuma yana da kyau jiki Properties, m barbashi halaye da kyau kwarai narke rheological hali.
Omasana'antu
Sauran masana'antu sun hada da kayan shafawa, samar da mai, kayan wanke-wanke, yumbun gida da sauran masana'antu.
Wmai narkewa
HPMC yana ɗaya daga cikin polymers masu narkewa da ruwa, kuma ruwan sa yana da alaƙa da abun ciki na ƙungiyar metoxyl.Lokacin da abun ciki na ƙungiyar methoxyl ya yi ƙasa, ana iya narkar da shi a cikin alkali mai ƙarfi kuma ba shi da ma'anar gelation na thermodynamic.Tare da karuwar abun ciki na methoxyl, yana da mahimmanci ga kumburin ruwa da mai narkewa a cikin alkali mai rauni da raunin alkali.Lokacin da abun ciki na methoxyl ya kasance> 38C, ana iya narkar da shi cikin ruwa, kuma ana iya narkar da shi a cikin halogenated hydrocarbons.Idan an ƙara acid ɗin lokaci-lokaci zuwa HPMC, HPMC za ta watse cikin ruwa da sauri ba tare da samar da abubuwan da ba za su iya narkewa ba.Wannan shi ne yafi saboda gaskiyar cewa lokaci-lokaci acid yana da ƙungiyoyin dihydroxyl a cikin matsayi na ortho akan glycogen da aka watsar.
Lokacin aikawa: Dec-07-2022