Incamake:
Nka nyongeramusaruro yingenzi mubifata tile, selile ether igira uruhare runini mugushushanya imbaraga nigihe cyo gufungura amatafari, kandi ibyo bintu byombi nabyo ni ibimenyetso byingenzi byerekana amatafari meza. Ingaruka za ethers kumiterere ya tile yometse muri make irasubirwamo.
Cellulose ether; Gukurura ipfundo imbaraga; Gufungura igihe
1 Intangiriro
Amashanyarazi ashingiye kuri sima kuri ubu ni yo manini akoreshwa cyane ya minisiteri idasanzwe yumye ivanze, igizwe na sima nkibikoresho nyamukuru bya sima kandi byuzuzwa nudusanduku twinshi, ibikoresho bigumana amazi, imbaraga za kare, ifu ya latex nibindi byongeweho kama kama. imvange. Mubisanzwe, bigomba gusa kuvangwa namazi iyo bikoreshejwe. Ugereranije na sima isanzwe ya sima, irashobora kunoza cyane imbaraga zihuza hagati yibintu byerekanwa na substrate, kandi ikagira imbaraga zo kunyerera kandi ikarwanya amazi meza n’amazi. Ikoreshwa cyane cyane mugushiraho ibikoresho byo gushushanya nko kubaka amatafari yimbere yimbere ninyuma, amabati hasi, nibindi bikoreshwa cyane murukuta rwimbere ninyuma, hasi, ubwiherero, igikoni nahandi hantu ho gushariza. Kugeza ubu ni ibikoresho bikoreshwa cyane muri Tile.
Mubisanzwe iyo dusuzumye imikorere yifata ya tile, ntitwita gusa kubikorwa byayo nubushobozi bwo kurwanya kunyerera, ahubwo tunitondera imbaraga za mashini nigihe cyo gufungura. Ether ya selile mu gufatira tile ntabwo igira ingaruka gusa kumiterere ya rheologiya yumuti wa farashi, nko gukora neza, icyuma gifata, nibindi, ariko kandi igira ingaruka zikomeye kumiterere yubukorikori bwa tile.
2. Ingaruka kumwanya ufunguye wa tile
Iyo ifu ya reberi na selile ether bibana hamwe na minisiteri itose, amakuru amwe yerekana ko ifu ya reberi ifite imbaraga za kinetic zo guhuza ibicuruzwa biva mu mazi ya sima, kandi ether ya selile ibaho cyane mumazi yo hagati, bigira ingaruka kumyororokere ya Mortar no kugena igihe. Ubusumbane bwubuso bwa selile ya selile burenze ubw'ifu ya reberi, kandi gutunganyiriza ether ya selile nyinshi kuri interineti ya minisiteri bizagira akamaro mu gushiraho imigozi ya hydrogène hagati yubuso bwibanze na selile.
Muri minisiteri itose, amazi yo muri minisiteri arahumuka, kandi ether ya selile ikungahaye hejuru, kandi hazakorwa firime hejuru yubutaka bwa minisiteri mu minota 5, bizagabanya umuvuduko ukurikiraho, kuko amazi menshi ari Yakuwe muri minisiteri yuzuye Igice cyacyo cyimukira murwego ruto rwa minisiteri, kandi firime yakozwe mugitangiriro irashonga igice, kandi kwimuka kwamazi bizazana ubukire bwa selireose ether hejuru yubutaka. Nkuko bigaragara ku gishushanyo 1
Kubwibyo, firime ya firime ya selulose ether hejuru yubutaka bwa minisiteri igira uruhare runini mumikorere ya minisiteri. 1) Filime yakozwe ni ntoya cyane kandi izashonga kabiri, idashobora kugabanya ihinduka ryamazi no kugabanya imbaraga. 2) Filime yakozwe ni ndende cyane, ubunini bwa selile ya ether mumazi ya minisiteri ya minisiteri ni ndende, viscosity ni ndende, kandi ntabwo byoroshye kumena firime yo hejuru mugihe amabati yometse. Birashobora kugaragara ko imiterere ya firime ya selile ya ether igira uruhare runini mugihe cyo gufungura.
Ubwoko bwa selulose ether (HPMC, HEMC, MC, nibindi) hamwe nurwego rwa etherification (impamyabumenyi yo gusimbuza) bigira ingaruka itaziguye kumiterere ya firime ya selile ya ether, hamwe nubukomere nubukomezi bwa firime.
Kwimuka kwa selulose ether muri minisiteri itose (igice cyo hejuru ni ceramic tile yuzuye, igice cyo hasi ni poro ya beto)
3 Ingaruka ku mbaraga zo gukuramo
Usibye gutanga imitungo yingirakamaro yavuzwe haruguru kuri minisiteri, selulose ether inadindiza hydrated kinetics ya sima. Izi ngaruka zo kudindiza ahanini ziterwa na adsorption ya molekile ya selile ya selile ku byiciro bitandukanye byamabuye y'agaciro muri sisitemu ya sima ihindurwamo amazi, ariko muri rusange, icyumvikanyweho ni uko molekile ya selile yanduzwa cyane cyane kumazi nka CSH na hydroxide ya calcium. Ku bicuruzwa bivura imiti, ntibisanzwe byamamazwa kumurongo wambere wamabuye ya clinker. Byongeye kandi, selile ya selile igabanya umuvuduko wa ion (Ca2 +, SO42-,…) mugisubizo cya pore kubera kwiyongera kwinshi kwumuti wa pore, bityo bikadindiza inzira yo kuhira.
Viscosity ni ikindi kintu cyingenzi, kigaragaza imiti iranga selile. Nkuko byavuzwe haruguru, ibishishwa bigira ingaruka cyane cyane kubushobozi bwo gufata amazi kandi bikagira n'ingaruka zikomeye kumikorere ya minisiteri nshya. Nyamara, ubushakashatsi bwakozwe bwerekanye ko ubwiza bwa selile ya selile nta ngaruka bigira kuri sima hydration kinetics. Uburemere bwa molekuline ntacyo bugira kuri hydration, kandi itandukaniro ntarengwa riri hagati yuburemere butandukanye ni 10min gusa. Kubwibyo, uburemere bwa molekile ntabwo aribintu byingenzi bigenzura kugenzura sima.
Icyerekezo rusange ni uko kuri MHEC, urwego rwo hejuru rwa methylation, ingaruka nke za selulose ether. Byongeye kandi, ingaruka mbi zo gusimbuza hydrophilique (nko gusimbuza HEC) irakomeye kuruta iyisimbuza hydrophobique (nko gusimbuza MH, MHEC, MHPC). Ingaruka zo kudindiza selile ya selile yibasiwe cyane nibintu bibiri, ubwoko nubwinshi bwamatsinda asimbuye.
Ubushakashatsi bwacu butunganijwe kandi bwagaragaje ko ibikubiye mu nsimburangingo bigira uruhare runini mu mbaraga za mashini zifata tile. Twasuzumye imikorere ya HPMC hamwe nimpamyabumenyi zitandukanye zo gusimbuza amatafari, kandi twagerageje ingaruka za ether ya selile irimo amatsinda atandukanye mubihe bitandukanye byo gukira ku ngaruka ziterwa nubukanishi bwa tile, Ishusho ya 2 nishusho ya 3 ningaruka zimpinduka muri vitoxyl (DS) nibirimo hydroxypropoxyl (MS) kumiterere yo gukuramo ibintu bifata tile mubushyuhe bwicyumba.
Mu kizamini, dusuzuma HPMC, ni ether ikomatanya, tugomba rero gushyira hamwe amashusho yombi. Kuri HPMC, ikenera urwego runaka rwo kwinjizwa kugirango irebe amazi yayo kandi yoroherezwe. Twese tuzi ibiri mubisimburana Igena kandi ubushyuhe bwa gel ya HPMC, nayo igena imikoreshereze ya HPMC. Muri ubu buryo, itsinda ryibigize HPMC risanzwe rikoreshwa naryo ryateguwe murwego. Muri uru rwego, uburyo bwo guhuza imikorere na hydroxypropoxy Kugirango tugere ku ngaruka nziza nibiri mubushakashatsi bwacu. Mu ntera runaka, kwiyongera mubiri mumatsinda ya mikorerexyl bizaganisha kumanuka kumanuka mumbaraga zo gukuramo, mugihe kwiyongera mubiri mumatsinda ya hydroxypropoxyl bizatuma kwiyongera kwingufu zo gukuramo. Hariho ingaruka zisa kumasaha yo gufungura. Ingaruka ya HPMC hamwe nibintu bitandukanye bisimburana kumiterere yubukanishi mugihe cyo gufungura iminota 20.
Impinduka zimbaraga zumukanishi mugihe cyifunguye cyigihe gihuye nubushyuhe busanzwe bwubushyuhe, ibyo bikaba bihuye nubukomezi bwa firime ya selulose ether twavuze mu gice cya 2. Ibiri muri metoxyl (DS) ni byinshi kandi nibirimo ya hydroxypropoxyl HPMC ifite ibintu bike (MS) bifite ubukana bwiza bwa firime, ariko bizagira ingaruka kumazi ya minisiteri itose kubutaka.
4 Incamake
Ether ya selulose, cyane cyane methyl selulose ethers nka HEMC na HPMC, nibyongeweho byingenzi mubintu byinshi byumye-bivanga bya minisiteri. Umutungo wingenzi wa selile ya selile ni ukubika amazi mubikoresho byubaka amabuye y'agaciro. Niba ether ya selile yongeyeho, urwego ruto rwa minisiteri nshya ruzuma vuba cyane, kugirango sima idashobora kuyoborwa muburyo busanzwe, kugirango minisiteri idashobora gukomera kandi ntishobora kubona ibintu byiza bihuza urwego rwibanze. Hariho ibintu byinshi bigira ingaruka kumazi ya selulose ether, nka dosage na viscosity, hamwe nibigize imbere: urwego rwo gusimburwa rugira uruhare runini kumikorere ya nyuma ya minisiteri. Kuva kera, twizeraga ko ubwiza bwa selile ya selile ari ingenzi kubikoresho bishingiye kuri sima. Igihe cyo gushiraho sima gifite ingaruka zikomeye. Ubushakashatsi buherutse gukorwa bwerekanye ko ihinduka ryijimye ridafite ingaruka nke mugihe cyo gushiraho sima. Ibinyuranye, ubwoko no guhuza amatsinda asimburwa nibintu byingenzi bigira ingaruka kumikorere ya selile ether. Mugihe dutegereje ibicuruzwa bikora neza cyane, ntabwo tugomba gutekereza gusa kumihindagurikire yumutungo wa rheologiya wazanywe na selulose ether, ituma minisiteri yoroha kubyitwaramo, ariko tunareba ingaruka zikoreshwa mubicuruzwa bya selile ether hamwe nurwego rukwiye rwa gusimburwa. umusanzu.
Igihe cyo kohereza: Gashyantare-09-2023