Tare da ci gaba da ci gaba da masana'antu da haɓaka fasahar, ta hanyar gabatarwar turɓayar gida, fesestical spring da aka inganta sosai a ƙasata a cikin 'yan shekarun nan. Injin ciyawar turmi ta banbanta da turmi na yau da kullun, wanda ke buƙatar babban aikin riƙe ruwa mai riƙewa, da ya dace da hasken ruwa da kuma wasu aikin anti-haushi. Yawancin lokaci, hydroxypyl methylcellulopyl methylcellulose an ƙara zuwa turmi, wanda enelulose ether (HPMC) shine mafi yawan amfani. Babban ayyukan hydroxypropyl methylcellulopyl methylcellulopyl methylcellulose hpmc a turmi na turmi: thickening da viscisify, daidaita da jin kai, da kuma kyakkyawan karfin kwadisin ruwa. Koyaya, kasawar HPMC ba za a iya watsi da ita ba. HPMC tana da tasiri mai ɗorewa, wanda zai haifar da ƙarin lahani na ciki da kuma rage rage kayan masarufi na turmi. Shandong Chenbang cousse Co., Ltd. Na yi karatu tasirin hpmc a kan kudin riƙewar ruwa, da kuma nazarin tasirin hydroxypropyl metrylell -uctlipyl metrylcellulopyl metrylellulose hpmc a kan l tsarin. .
1. Gwaji
1.1 kayan ƙasa
Sumunti: Kasuwancin P.0 42.5 ciminti, m strural da karfi da ƙarfi da ƙarfi na 68 da 48 da 48.2 mpa bi da bi; Sand: Chengde yashi yashi mai yashi, 40-100 raga; Shandong Chenger: Shandong Chenbang Lafiya Co., Shandong Chenbang Ruwa: Rufe ruwan famfo.
1.2 Hanyar gwaji
A cewar JGJ / T 105-2011 "Dokokin gine-gine don fesawa da plastering na turmi shine 90%. A cikin wannan gwajin, an saita tsarin lemun tsami a 1: 5, daidaiton an sarrafa shi a (93 + 2) mm, kuma etan eter an samo shi ne a waje, kuma adadin celululos an dogara da shi a waje, kuma adadin cellulose an dogara da shi a waje, kuma adadin cellulose an dogara da shi a waje, kuma adadin cellulose an dogara da shi a waje, kuma adadin cellulose an dogara da shi a waje, kuma adadin celululos an dogara da shi a waje, kuma adadin cellulose ya dogara da siminti. Abubuwan da ke asali na turmi kamar yadda rigar ruwa, riƙewar ruwa, da kuma daidaitawa ana gwada su gwargwadon tsarin gini. A shirye-shiryen, gwaji mai ƙarfi da kuma rikice-rikicen ƙarfi na samfuran an kai su ne ga GB / t 17671-1999 "Hanyar ISO)". Diamita na larvae an auna shi ta hanyar porosimetry. Model na Mercury Porosimeter shine Autoppore 9500, kuma kewayon auna ya kasance 5.5 nm-360 μm. An aiwatar da abubuwa 4 na gwaje-gwaje 4. Matsayi na ciminti ya kasance 1: 5, danko na HPMC ya kasance 100 PA-S, da kuma sashi na 0, 0.1%, 0.3%, 0.3%, 0.3% (a cikin 100).
2. Sakamako da bincike
2.1 tasirin hpmc a kan yawan riƙe riƙe mai turta ta ciminti
Riƙɓarwar ruwa yana nufin ikon turmi ya riƙe ruwa. A cikin injin feshin turmi, ƙara eth eth ethere zai iya riƙe ruwa sosai, ku rage yawan hydration na kayan ciminti. Tasirin HPMC akan rizarar turmi.
Tare da karuwar abun ciki na HPMC, kashi na riƙe da ruwa na tururuwa yana ƙaruwa a hankali. The curves na hydroxypropyl methylcellulosber ether tare da viscoites na 100, 150 da 200 pa.s are m iri ɗaya ne. Lokacin da abun ciki shine 0.05% -0.15%, Rukunin riƙe ruwa yana ƙaruwa da layi, kuma lokacin da abun ciki ya fi kashi 02%. ; Lokacin da adadin ya wuce kashi 0.20%, da haɓaka yanayin riƙewar ruwa ya zama ɗakin kwana, yana nuna cewa adadin HPMC yana kusa da jikewa. Babban abin da aka yi na adadin HPMC tare da danko mai 40 pa.s a kan adadin riƙe riƙewar ruwa yana da kusan layi madaidaiciya. Lokacin da adadin ya fi 0.15%, yawan riƙe riƙe mai tursasawa yana da ƙasa sosai fiye da na ɗayan hpmc iri ɗaya tare da adadin danko. An yi imani gabaɗaya cewa tsarin samar da ruwa na ethulose shine: greenungiyar hydroxyl a kan sel a kan ethule da sinadarin hydroyen don samar da ruwa mai kyau, saboda haka yana yin amfani da ruwa mai kyau; An kuma yi imanin cewa ma'abota kwayoyin halittar ruwa da kuma sel kware na ruwa don shiga cikin sarƙoƙi mai ƙarfi, don haka inganta hanyar riƙe ruwa mai ƙarfi, don haka inganta ruwan ƙarfi na slurry. Kyakkyawan riƙe ruwa na iya ci gaba da turmi mai ƙarfi, ba mai sauƙi ne a rarrabe ba, kuma sami kyakkyawan hadawa da kayan masarufi, yayin rage rayuwar ta turmi.
2.2 Sakamakon Hydroxypropyl methylcellulose hpmc a kan yawa da abun cikin iska siminti
Lokacin da adadin HPMC shine 0-0.220%, yawan adadin turmi yana raguwa sosai tare da karuwar adadin HPMC, daga 2050kg / M3, wanda kusan kusan 20% ƙananan; Lokacin da adadin HPMC ya wuce 0.20%, da yawa yana raguwa. cikin nutsuwa. Kwatanta nau'ikan HPMC 4 tare da vicisies daban-daban, mafi girma danko, ƙananan yawa daga turmi; Yawan munanan da mutane tare da hadewar viscoins na 150 da 200 pais hpmC m yaci gaba da karuwa, da yawa ba zai rage raguwa ba.
Canjin canji na iska na turmi akasin canji na turmi. A lokacin da abun ciki na hydroxypropyl methylcellulopyl methylcellulopyl methylcellulopyl methylcellulose hpmc ne 0-0.220%, tare da karuwar abun ciki na HPMC, abin da ke cikin abin da ke cikin iska yana ƙaruwa kusan layi; Abubuwan da ke ciki na HPMC ya wuce bayan 0.20%, iska da wuya canje-canje, wanda ke nuna cewa tasirin turɓaya yana kusa da jikewa. Air-rikewa na hpmc tare da danko 150 da 200 pa.s ya fi na HPMC tare da danko mai 40 da 100 pa.s.
Air-iska mai saurin ɗaukar eth ether an ƙaddara shi da tsarin kwayoyin halitta. Cellulose ether has both hydrophilic groups (hydroxyl, ether) and hydrophobic groups (methyl, glucose ring), and is a surfactant. , yana da aiki na waje, don haka samun sakamako mai ɗorewa. A gefe guda, gas da aka gabatar na iya yin aiki a matsayin ball a ciki a cikin turmi, inganta aikin aikin turmi, da kuma ƙara fitarwa, wanda ke da amfani ga mai samarwa. Amma a wannan bangaren, ingantaccen sakamako yana kara yawan abun ciki na turmi na turmi da parning bayan karancin pores, sakamakon a karuwar cutarwa pores da kuma rage kayan masarufi. Kodayake HPMC tana da tasiri mai runtumi, ba zai iya maye gurbin wakili na shiga ba. Bugu da kari, lokacin da aka yi amfani da HPMC da iska-shiga cikin rakodin iska a lokaci guda, mai ɗaukar hoto na iya kasawa.
2.3 Tasirin HPMC a kan kayan masarufi na turmi na ciminti
Lokacin da adadin HPMC shine kawai 0.05%, ƙarfin ƙarfin turmi ba tare da hydroxypropyl methylell -yl methylcellulose HPMC, da ƙarfin rikitarwa na iya kaiwa 65% na samfurin blank -80%. Lokacin da adadin HPMC ya wuce 0.20%, raguwar a cikin ƙarfi mai sassauci da ƙarfin ƙarfin turmi ba bayyananne ba. Hepmc na HPMC yana da ɗan lokaci kaɗan akan kayan ƙirar na turmi. HPMC ta gabatar da karfin kumfa da yawa, kuma iska mai runtumi a kan turɓaya ta ciki tana kara yawan turmi na ciki da karfi na turmi, wanda ya haifar da babbar karfin karfi da karfi. Wani dalili na rage ƙarfin turmi shine sakamakon riƙe da ruwa na selulake, wanda ke riƙe ruwa a cikin kwari mai ƙarfi, da babban abin da ke cikin turɓaya cikin ƙarfin gwajin. Don tururuwa kayan gargajiya na inji, kodayake eth ether na turmi na iya ƙaruwa da yawan riƙewar riƙe ruwa, don haɓaka aikin kayan aikin na turmi, don haka ya shafi dangantakar kayan aikin da ya kamata a auna shi da hankali.
Tare da karuwar abubuwan da ke cikin hydroxypropyl methylcellulophropyl methylcellulose hpmc, nadawa rabo daga hadar da hadar, wanda shine dangantakar dangantaka ta layi daya. Wannan saboda ƙara etherlulose yana gabatar da babban kumfa mai yawa, wanda ke haifar da ƙarin lahani a cikin turmi, kuma kodayake ƙarfin rikicewar yana rage turmi; Amma ether na sel na iya inganta sassaucin turmi, yana da amfani ga ƙarfin multralir, wanda ya sa raguwar ragi a ƙasa. Yi la'akari da cikakken bayani, sakamakon sakamako na biyu yana haifar da ƙaruwa zuwa karuwa a cikin rabo rabo.
2.4 sakamakon hpmc a kan l diamita na turmi
Daga girman girman girman abin da aka rarraba, da aka yi amfani da martabar ƙididdigar ƙididdiga daban-daban na alamomi daban-daban, ana iya ganin hpmc yana da babban tasiri a kan tsarin ciminti:
(1) Bayan an hada HPMC, girman girman turmin ciminti yana ƙaruwa sosai. A kan pore girman rarraba Lurve, yankin da hoton yana motsawa zuwa dama, kuma darajar pore daidai da ƙimar koli ya zama ya fi girma. Bayan ƙara HPMC, peran mediya pore diamita na siminti yana da girma fiye da na samfurin tare da umarni 2 na girman girman da aka kwatanta da samfurin blank.
(2) Raba pores a kankare zuwa nau'ikan guda hudu, wato cutarwa pores (≤20 nm), cutarwa pores (100-200 nm) da yawa pores (≥200 nm). Ana iya ganin ana gani daga tebur 1 cewa yawan ramuka marasa lahani ko ƙarancin ramuka mai lahani, da kuma ramuka masu cutarwa ko kuma ramuka masu cutarwa. Abubuwan da basu da lahani ko marasa lahani ga samfuran samfuran ba su gauraya da HPMC kusan 49,4% ba. Bayan ƙara HPMC, pores marasa lahani ko ƙarancin ƙwayoyin cuta suna raguwa sosai. Takeauki sashi na 0.1% a matsayin misali, pores mara lahani ko ƙarancin pores da kusan 45%. %, yawan ramuka masu cutarwa sun fi girma fiye da 10um ya karu da kusan sau 9.
(3) Mediya pore diamita, matsakaita pore diamita, takamaiman yanki girma da takamaiman yanki methyllulose hpmc abun ciki a cikin gwajin samfurin na Mercury. mai dangantaka da manyan watsawa. Amma a duka, pore median pore diamita, matsakaita pore diamita da takamaiman girman hade da samfurin blank, yayin da takamaiman yankin ya ragu.
Lokaci: Apr-03-2023