Menene HPMC Hydroxypropyl methyl cellulose da rabon ciminti?
Turmi rufin injiniya mai hana ruwa, halayensa sun dogara da nauyin net ɗin da aka yi: Kankare 30-340, injiniyan gini sharar bulo foda 40-50, lignin fiber 20-24, calcium formate 4-6, hydroxypropyl methyl cellulose 7-9, silicon carbide foda 40-45, launin ruwan kasa foda, alli hydroxide foda. 10-12, bushe babban birnin silt foda 30-35, Datong birnin ƙasa 40-45, aluminum sulfate 4-6, carboxymethyl Base sitaci 20-24, modified kayan nanotechnology carbon foda 4-6, ruwa 600-650; Turmi mai hana ruwa aikin injiniya na wannan samfurin yana da ƙarfin zafi mai zafi, kyakkyawan juriya na wuta, haɗin gwiwa mai ƙarfi tare da bango, ƙarfin matsawa, aikin ƙwanƙwasa, kyakkyawan juriya na tsufa, kyakkyawan kariya ta muhalli, kyakkyawan danshi, juriya mai tsauri, hana faduwa. Yau za mu yi magana game da danko na hydroxypropyl methyl cellulose ruwa bayani duk a cikin abin da al'amurran? Bari mu yi nazarinsa a zahiri.
1. Matsakaicin nauyin kwayoyin halitta, zafin jiki na maganin ruwa, yankan adadin da kuma hanyar gwaji na ether cellulose; 2. Mafi girman zafin canjin gilashin, mafi girman girman nauyin kwayoyin halitta, danko na bayani shine mafi girma; 3. Mafi girman abun ciki na ether cellulose, mafi girman danko na bayani, don haka a cikin aiwatar da aikace-aikacen ya kamata mu kula da adadin da ya dace na haɗawa, hana haɗakarwa ya yi yawa, kuma kai tsaye yana rinjayar halaye na simintin siminti da simintin siminti; 4. Kamar yawancin maganin, danko kuma zai ragu tare da karuwar zafin jiki, tare da mafi girman abun ciki na ether cellulose, mafi girman cutar da zafin jiki; Bugu da kari, ainihin sakamako mai kauri kuma ya bambanta bisa ga adadin ruwan da ake amfani da shi don ciminti na epoxy.
Hydroxypropyl methyl cellulose mai ruwa-ruwa bayani danko ne kuma iya zama a matsayin key mahada ga comments a kan halaye na cellulose ether, da mafi girma da danko na mai ruwa-ruwa bayani, da lokacin farin ciki na epoxy ciminti kayan ne, da mafi alhẽri, a baya na farantin gelling Properties, amma idan danko ne ma manyan, zai cutar da epoxy ciminti albarkatun kasa nan da nan liquidability. Amma ga wasu turmi mai daidaita kai tare da ruwa mai yawa, za a ayyana dankon ether na cellulose ya zama ƙasa.
Cellulose ether ruwa bayani ne mai pseudoplastic jiki, mu a cikin mataki na gaba na gano da karfi kudi ne mafi girma, danko ne karami.
Sabili da haka, don taƙaitawa shine: haɗin gwiwar simintin siminti za a rage ta hanyar ƙarfin waje, wanda ke da amfani ga aikin injiniya a baya, amma cellulose ether aqueous bayani a cikin yanayin ƙananan ƙima, zai faru da halayen da ba na Newtonian ruwa ba, akasin haka, lokacin da aka haɓaka darajar maida hankali, maganin ruwa zai faru da halayen ruwa na pseudoplastic.
Riƙewar ruwa daga hydroxypropyl methyl cellulose yana ɗaya daga cikin mahimman kaddarorin hydroxypropyl methyl cellulose. Adadin fitar da ruwa a cikin cakuda turmi da samfuran filasta yana shafar zafin gas, zazzabi da ƙimar matsa lamba. Sabili da haka, a cikin yanayi daban-daban, da hydroxypropyl methyl cellulose daidai adadin ingancin ruwan samfurin yana da wasu bambance-bambance.
Gabaɗaya, mafi girman danko na hydroxypropyl methyl cellulose shine, mafi kyawun ainihin tasirin riƙewar ruwa zai kasance, amma cutarwar danko ga riƙewar ruwa zai ragu bayan danko ya wuce 100,000 Mpa. s. Lokacin da danko na HYDROXYpropyl methyl cellulose ya wuce 100,000, za a iya inganta yawan riƙewar ruwa ta hanyar ƙara yawan adadin hydroxypropyl methyl cellulose.
A cikin cikakken tsarin aikin gini, ana iya daidaita tasirin riƙewar ruwa na slurry ta hanyar daidaita adadin hydroxypropyl methyl cellulose. Hydroxypropyl methyl cellulose jerin kayayyakin iya yadda ya kamata warware matsalar rike ruwa a karkashin ci gaba high zafin jiki. A cikin ci gaba da yanayin zafi mai zafi, musamman a wurare masu zafi da ban sha'awa da kuma gina chromatography a gefen rana, ana buƙatar babban ingancin HYDROXYpropyl methyl cellulose don haɓaka riƙewar ruwa na slurry.
High quality na hydroxypropyl methyl cellulose, shi yana da mai kyau ma'auni, ta uku butyl da hydroxypropyl oxygen ayyuka kungiyoyin tare da fiber kwayoyin sarkar tsarin hadin gwiwa rarraba, zai iya ci gaba da methyl aldehyde kungiyar da oxygen, da kuma ruwa ingancin da dijital nau'i covalent bonds iya, zama daurin ruwa da ruwa na watsawa, sa'an nan yadda ya kamata sarrafa high zafin jiki na ruwa lalacewa ta hanyar ruwa reputation yanayi.
High quality na hydroxypropyl methyl cellulose iya shige sako-sako da kuma kasuwanci ƙasar a gauraye turmi da filastar kayayyakin, da dukan m barbashi cyst, damp, sanyi, da kuma samar da wani Layer na fim, danshi a matsakaici dogon lokaci sannu a hankali saki daga tushe, tare da farko na Organic fili admixture na hydration dauki, sa'an nan tabbatar da coherence na raw kayan compressive ƙarfi da tensile ƙarfi. A ci gaba high zafin jiki rani yi tsari, sabili da haka, don isa ruwa sakamako, ya zama daidai da girke-girke na wani adadin da ingancin hydroxypropyl methyl cellulose kayayyakin, in ba haka ba, zai nuna m da sauri da kuma haifar da rashin isasshen hydration, rage matsa lamba ƙarfi, tsaga, popped da halaye irin su metope komai drum da shakka, Har ila yau, a hade tare da ma'aikacin gina wahala coefficient. Yayin da zafin jiki ya ragu, adadin hydroxypropyl methyl cellulose za a iya ragewa sannu a hankali kuma ana iya samun sakamako mai riƙe da ruwa iri ɗaya.
Idan cellulose ether ba a kara, da chromatography na sabo ne siminti turmi zai bushe da sauri, yin kankare ba za a iya hydrated a cikin al'ada hanya, sakamakon ciminti turmi ba zai iya zama da wuya primed da samun mafi alhẽri mannewa. A lokaci guda, ƙari na ether cellulose yana sa turmi ciminti yana da kyau ductility da sassauci, kuma yana inganta ƙarfin haɗin gwiwa na turmi siminti.
1, hydroxypropyl methyl cellulose girman barbashi
Girman barbashi na ether cellulose yana cutar da solubility. Mafi kyawun ether cellulose shine, saurin rushewar sa a cikin ruwa kuma yana haɓaka halayen riƙe ruwa. Sabili da haka, ya kamata a haɗa girman ƙwayar cellulose ether a cikin binciken ɗaya daga cikin halayensa. Gabaɗaya, girman ƙwayar ether cellulose na raga 80 dangane da.
2, hydroxypropyl methyl cellulose bushe ba tare da nauyin nauyi ba
Dry manic no gravity rate, yana nufin wani zazzabi na busassun manic cellulose ether, asarar sinadarai mai inganci ya haifar da ainihin samfurin ingancin kashi na abun da ke ciki. Don wani ingancin ether cellulose a cikin bushe ba tare da nauyin nauyi ya yi yawa ba, zai rage abubuwan da suka dace a cikin ether cellulose, cutar da ainihin tasirin amfani da kamfanonin ƙasa, amma kuma inganta farashin sayan. Yawancin lokaci busassun ether cellulose ba tare da nauyin nauyi ba zai wuce 5.0%.
3, hydroxypropyl methyl cellulose potassium thiocyanate ash
Domin wani ingancin cellulose ether a cikin ash abun ciki ya yi yawa, zai rage cellulose ether a cikin dacewa da aka gyara, cutar da ainihin sakamakon yin amfani da na kasa kamfanoni, cellulose ether potassium thiocyanate ash abun ciki shi ne babban la'akari da kansa halaye index darajar.
4, hydroxypropyl methyl cellulose danko
Hydroxypropyl methyl cellulose ruwa riƙewa da thickening sakamako shine mabuɗin don ƙara siminti turmi cellulose ether a cikin nasa danko da kuma hadawa.
5, hydroxypropyl methyl cellulose PH darajar
Dankin samfuran hydroxypropyl methyl cellulose yana raguwa sannu a hankali a mafi girman zafin jiki ko bayan ajiya na dogon lokaci, musamman don samfuran ɗanko mai ƙarfi, don haka ƙimar pH dole ne a iyakance. Gabaɗaya an ƙayyade cewa ƙimar ƙimar PH na cellulose ether yakamata a sarrafa shi azaman 5-9.
6. Watsawa na hydroxypropyl methyl cellulose
Abubuwan amfani da rashin amfani na watsawar hydroxypropyl methyl cellulose na iya shafar ainihin tasirin amfani da shi a cikin kayan gini. Abubuwan farko da ke cutar da jigilar cellulose ether sune
1) ingancin albarkatun kasa; (2) ainihin tasirin mutuwa; (3) Shirye-shiryen fasaha na sarrafawa; (4) shirye-shiryen sauran ƙarfi na halitta; (5) Ainihin tasirin zhonghe.
Dangane da ainihin tasirin aikace-aikacen, watsawar ether cellulose bai kamata ya zama ƙasa da 80%.
7, hydroxypropyl methyl cellulose da ake zargin zazzabi
Hydroxypropyl methyl cellulosea cikin abubuwan siminti a matsayin mabuɗin don haɓaka adhesives, danko da wakili mai riƙe ruwa, don haka danko da zafin jiki na gel shine mahimmin ƙimar hydroxypropyl methyl cellulose. Ana amfani da zafin jiki don yin hukunci akan nau'in da ƙayyadaddun ether na cellulose, kuma matakin maye gurbin ether cellulose yana da alaƙa.
8. Bugu da ƙari, gishiri da ragowar za su cutar da yanayin zafi na manne. Lokacin da zafin jiki na maganin ruwa ya tashi, fiber polymer a hankali ya rasa ruwa, kuma danko na maganin ruwa yana raguwa. Lokacin da aka kai wurin mannewa, polymer ɗin ya bushe gaba ɗaya kuma an samar da manne. Saboda haka, yawan zafin aiki na membobin siminti yawanci yana ƙasa da ainihin zafin manne. Ƙarƙashin wannan ma'auni, ƙananan zafin jiki, mafi girma da danko, kuma mafi mahimmancin ainihin tasirin viscosification da riƙewar ruwa.
Lokacin aikawa: Afrilu-25-2024