Menene dankon da ya dace na hydroxypropyl methylcellulose (HPMC)?
Matsakaicin foda yana da yuan 100,000, kuma buƙatun turmi sun fi girma, kuma ana buƙatar yuan 150,000 don sauƙin amfani. Bugu da ƙari, aikin mafi mahimmanci na HPMC shine riƙewar ruwa, sannan kauri ya biyo baya. A cikin foda mai sakawa, idan dai ruwa yana da kyau kuma danko yana da ƙananan (70,000-80,000), yana yiwuwa kuma. Tabbas, mafi girman danko, mafi kyawun riƙewar ruwa. Lokacin da danko ya wuce 100,000, danko zai shafi riƙewar ruwa. Ba yawa kuma.
Menene hanyoyin narkar da hydroxypropyl methylcellulose (HPMC)?
(1) Fari: Ko da yake Baidu ba zai iya tantance ko HPMC yana da sauƙin amfani ba, kuma idan an ƙara abubuwan fata yayin aikin samarwa, ingancinsa zai yi tasiri. Duk da haka, yawancin samfurori masu kyau suna da fari mai kyau.
(2) Lalacewa: Mafi kyawun HPMC gabaɗaya yana da raga 80 da raga 100, kuma raga 120 ya ragu. Yawancin HPMC da aka samar a Hebei raga 80 ne. Mafi kyawun ingancin, gabaɗaya magana, mafi kyau.
(3) Canjin haske: sanya hydroxypropyl methylcellulose (HPMC) a cikin ruwa don samar da colloid mai haske, kuma duba haskensa. Mafi girman watsa hasken, mafi kyau, yana nuna cewa akwai ƙananan insoluble a ciki. . The permeability na a tsaye reactors ne gaba ɗaya mai kyau, kuma na kwance reactors ya fi muni, amma ba yana nufin cewa ingancin reactors a tsaye ya fi na kwance reactors, kuma samfurin ingancin da aka ƙaddara da yawa dalilai. (4) Takamaiman nauyi: Girman ƙayyadaddun nauyi, mafi nauyi mafi kyau. Ƙayyadaddun ƙayyadaddun yana da girma, gabaɗaya saboda abun ciki na ƙungiyar hydroxypropyl a ciki yana da girma, kuma abun ciki na ƙungiyar hydroxypropyl yana da girma, riƙewar ruwa ya fi kyau.
Menene babban aikin aikace-aikacen HPMC a cikin foda, kuma yana faruwa ta hanyar sinadarai?
A cikin putty foda, HPMC tana taka rawar uku na kauri, riƙe ruwa da gini.
Kauri: Za a iya kauri cellulose don dakatarwa da kuma kiyaye maganin daidai sama da ƙasa, da tsayayya da sagging.
Riƙewar ruwa: sanya foda ta bushe a hankali, kuma ta taimaka wa ash calcium don amsawa ƙarƙashin aikin ruwa.
Gina: Cellulose yana da sakamako mai lubricating, wanda zai iya sa foda na putty yana da kyakkyawan gini. HPMC baya shiga cikin kowane halayen sinadarai, amma yana taka rawar taimako kawai. Ƙara ruwa a cikin foda da kuma sanya shi a kan bango wani nau'i ne na sinadaran, saboda an samar da sababbin abubuwa. Idan ka cire foda da ke jikin bango daga bangon, ka niƙa shi ya zama foda, ka sake amfani da shi, ba zai yi aiki ba saboda an samu sababbin abubuwa (calcium carbonate). ) kuma.
Babban abubuwan da ke cikin ash calcium foda sune: cakuda Ca (OH) 2, CaO da ƙaramin adadin CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O ash calcium A cikin ruwa da iska Karkashin aikin CO2, ana samar da sinadarin calcium carbonate, yayin da HPMC ke rike da ruwa kawai, yana taimakawa mafi kyawun dauki na ash calcium, kuma baya shiga cikin wani dauki da kansa.
Dangantakar da ke tsakanin danko da zafin jiki na HPMC, menene ya kamata a kula da shi a aikace aikace?
Dankowar HPMC ya yi daidai da yanayin zafi, wato, danko yana ƙaruwa yayin da zafin jiki ya ragu. Dankowar samfurin da muke magana akai yana nufin sakamakon gwajin 2% na maganin ruwa a zazzabi na digiri 20 na ma'aunin celcius.
A cikin aikace-aikace masu amfani, ya kamata a lura cewa a cikin yankunan da ke da manyan bambance-bambancen zafin jiki tsakanin rani da hunturu, ana bada shawarar yin amfani da ƙananan danko a cikin hunturu, wanda ya fi dacewa da ginawa. In ba haka ba, lokacin da zafin jiki ya yi ƙasa, danko na cellulose zai karu, kuma jin daɗin hannun zai yi nauyi lokacin da ake gogewa.
Matsakaici danko: 75000-100000 galibi ana amfani dashi don putty
Dalili: kyakkyawan tanadin ruwa
Babban danko: 150000-200000 ana amfani dashi galibi don polystyrene barbashi rufi turmi roba foda da vitrified microbead rufi turmi.
Dalili: high danko, turmi ba sauki fada kashe, sagging, wanda inganta yi.
Lokacin aikawa: Mayu-18-2023