Amatsinda ya hydroxyl kuriselile ethermolekile na atome ya ogisijeni kuri ether bizakora hydrogène ya hydrogène hamwe na molekile y'amazi, ihindure amazi yubusa mumazi aboshye, bityo bigire uruhare runini mukubungabunga amazi; gukwirakwiza hagati ya molekile zamazi na selile ya ether ya molekuline ituma molekile zamazi zinjira imbere mumurongo wa selulose ether macromolecular kandi bikagira imbogamizi zikomeye, bityo bigakora amazi yubusa namazi yiziritse, bigatuma amazi agumana amazi ya sima; selulose ether itezimbere imiterere ya rheologiya, imiterere y'urusobekerane rwumuvuduko numuvuduko wa osmotic wumuvuduko wa sima mushya cyangwa imiterere ya firime ya selulose ether ibuza ikwirakwizwa ryamazi.
Kugumana amazi ya selile ether ubwayo bituruka kumashanyarazi no kubura umwuma wa selile ubwayo. Ubushobozi bwo kuyobora amatsinda ya hydroxyl bwonyine ntibihagije kugirango bishyure imigozi ikomeye ya hydrogène nimbaraga za van der Waals hagati ya molekile, bityo irabyimba gusa ariko ntishonga mumazi. Iyo insimburangingo zinjijwe mumurongo wa molekile, ntabwo insimburangingo zangiza gusa iminyururu ya hydrogène, ariko kandi imigozi ya hydrogène ihuza imiyoboro irasenywa kubera guhuza ibice hagati yiminyururu yegeranye. Ninini isimbuye, niko intera iri hagati ya molekile, ningaruka nini zo gusenya imigozi ya hydrogen. Umuyoboro wa selile umaze kubyimba, igisubizo kirinjira, ether ya selulose ihinduka amazi, ikagira igisubizo cyinshi cyane, hanyuma ikagira uruhare mukubungabunga amazi.
Ibintu bigira ingaruka kumikorere yo gufata amazi:
Viscosity: Uko ubwinshi bwa selulose ether, niko imikorere myiza yo gufata amazi, ariko uko ubukonje bugenda bwiyongera, niko uburemere bwa molekile bugereranije bwa selile ya selile, kandi imbaraga zayo zikagabanuka bikurikije, ibyo bikaba bigira ingaruka mbi kubikorwa no mubikorwa byubwubatsi. ya minisiteri. Muri rusange, kubicuruzwa bimwe, ibisubizo bya viscosity byapimwe nuburyo butandukanye biratandukanye cyane, mugihe rero ugereranije nubwiza, bigomba gukorwa hagati yuburyo bumwe bwo gupima (harimo ubushyuhe, rotor, nibindi).
Umubare winyongera: Umubare munini wa selile ether wongeyeho kuri minisiteri, niko imikorere yo gufata amazi ari nziza. Mubisanzwe, selile nkeya ya selile irashobora kuzamura cyane igipimo cyo gufata amazi ya minisiteri. Iyo umubare ugeze kurwego runaka, inzira yo kongera igipimo cyo gufata amazi iratinda.
Ubwiza bwa Particle: Nibyiza ibice, niko gufata amazi neza. Iyo uduce twinshi twa selulose ether duhuye namazi, ubuso burahita bushonga hanyuma bugakora jel yo gupfunyika ibikoresho kugirango birinde molekile zamazi gukomeza kwinjira. Rimwe na rimwe, ndetse no kumara igihe kirekire bidashobora kugera ku gutatanya no gusesekara kimwe, bigakora igisubizo kibisi cyangwa aglomeration, bigira ingaruka cyane kumazi ya selile ya selile. Gukemura ni kimwe mubintu byo guhitamo selile ya ether. Ubwiza nabwo bwerekana imikorere yingenzi ya methyl selulose ether. Ubwiza bugira ingaruka kuri methyl selulose ether. Coarser MC mubisanzwe ni granulaire kandi irashobora gushonga byoroshye mumazi nta agglomeration, ariko igipimo cyo kuyasesa kiratinda cyane kandi ntigikwiye gukoreshwa mumashanyarazi yumye.
Ubushyuhe: Mugihe ubushyuhe bwibidukikije buzamuka, kubika amazi ya selile ya selile mubisanzwe bigabanuka, ariko ethers zimwe na zimwe zahinduwe na selile zifite amazi meza mugihe cy'ubushyuhe bwinshi; iyo ubushyuhe buzamutse, hydrated ya polymers igabanuka, kandi amazi ari muminyururu yirukanwa. Iyo umwuma uhagije, molekile zitangira kwegeranya kugirango zikore imiyoboro itatu-y'urusobekerane.
Imiterere ya molekulari: Ethers ya selile ifite insimburangingo yo hasi ifite amazi meza.
Kubyimba hamwe na thixotropy
Umubyimba:
Ingaruka ku bushobozi bwo guhuza hamwe no kurwanya anti-sagging: Ethers ya selile itanga ububobere buhebuje, bushobora kongera cyane ubushobozi bwo guhuza ibishishwa bitose hamwe nigitereko cyibanze kandi bigateza imbere imikorere yo kurwanya kugabanuka. Ikoreshwa cyane mugupompa minisiteri, tile ihuza minisiteri na sisitemu yo gukingira urukuta 3.
Ingaruka ku butinganyi bwibintu: Ingaruka yibyibushye bya selile irashobora kandi kongera ubushobozi bwo kurwanya ikwirakwizwa hamwe nuburinganire bwibikoresho bishya bivanze, birinda gutondekanya ibintu, gutandukanya no gufata amazi, kandi birashobora gukoreshwa muri beto ya fibre, beto yo mumazi no kwikorera beto. .
Inkomoko n'ingaruka zo kubyimba: Ingaruka yibyibushye bya selile ya ether kubikoresho bishingiye kuri sima biva mubwiza bwumuti wa selile. Mubihe bimwe, niko hejuru ya viscosity ya selulose ether, niko arushaho kuba mwiza wibikoresho byahinduwe na sima, ariko niba ububobere buri hejuru cyane, bizagira ingaruka kumikorere no mumikorere yibikoresho (nko kwizirika ku cyuma cyo guhomesha) ). Kwiyubaka-minisiteri no kwikuramo beto hamwe nibisabwa byamazi menshi bisaba ubukonje buke cyane bwa selile ether. Byongeye kandi, umubyibuho ukabije wa selulose ether uzanongerera amazi amazi yibikoresho bishingiye kuri sima kandi byongere umusaruro wa minisiteri.
Thixotropy:
Umuvuduko mwinshi wa selileose ether amazi yo mumazi afite thixotropy nyinshi, nayo nikintu gikomeye kiranga selile ether. Igisubizo cyamazi ya methyl selulose mubusanzwe gifite pseudoplastique hamwe namazi adafite thixotropique munsi yubushyuhe bwa gel, ariko akerekana imitekerereze ya Newtonian ku gipimo gito. Pseudoplastique yiyongera hamwe no kwiyongera kwa selile ya ether ya molekuline cyangwa kwibumbira hamwe, kandi ntaho ihuriye nubwoko bwinsimburangingo nintera yo gusimburwa. Kubwibyo, selile ya ether yo murwego rumwe rwijimye, yaba MC, HPMC, cyangwa HEMC, burigihe yerekana imiterere imwe ya rheologiya mugihe cyose ubushyuhe nubushyuhe bikomeza guhoraho. Iyo ubushyuhe buzamutse, hakorwa gel yubatswe, kandi haraboneka umuvuduko mwinshi wa thixotropique. Ether ya selile ifite ubukana bwinshi hamwe nubukonje buke bwerekana thixotropy ndetse no munsi yubushyuhe bwa gel. Uyu mutungo ni ingirakamaro cyane muguhindura urwego no kugabanuka bya minisiteri yo kubaka mugihe cyo kubaka.
Kwinjira mu kirere
Ihame n'ingaruka kumikorere ikora: Cellulose ether igira ingaruka zikomeye zo kwinjiza ikirere kubikoresho bishya bishingiye kuri sima. Ether ya selile ifite amatsinda yombi ya hydrophilique (amatsinda ya hydroxyl, amatsinda ya ether) hamwe nitsinda rya hydrophobi (amatsinda ya methyl, impeta ya glucose). Nibishobora kugaragara hamwe nibikorwa byo hejuru, bityo bikagira ingaruka zo kwinjiza ikirere. Ingaruka zo guhumeka ikirere zizatanga ingaruka zumupira, zishobora kunoza imikorere yibikoresho bishya bivanze, nko kongera plastike no koroshya bya minisiteri mugihe ikora, ifasha gukwirakwiza minisiteri; bizongera kandi umusaruro wa minisiteri kandi bigabanye umusaruro wa minisiteri.
Ingaruka kumiterere yubukanishi: Ingaruka yo kwinjiza ikirere izongera ubukana bwibintu byakomye kandi bigabanye imiterere yubukorikori nkimbaraga na moderi ya elastique.
Ingaruka ku mazi: Nka surfactant, ether ya selile nayo igira ingaruka zo guhanagura cyangwa gusiga amavuta kuri sima, ibyo hamwe ningaruka zayo zo mu kirere byongera umuvuduko wibikoresho bishingiye kuri sima, ariko ingaruka zabyo zizagabanya umuvuduko. Ingaruka ya selulose ether kumazi yibikoresho bishingiye kuri sima ni ihuriro ryingaruka za plastike no kubyimba. Muri rusange, iyo dosiye ya selulose ether iri hasi cyane, igaragara cyane nka plastike cyangwa kugabanya amazi; iyo ibipimo ari byinshi, ingaruka zo kwiyongera kwa selile ya selile yiyongera vuba, kandi ingaruka zayo zo guhumeka zikunda kuba zuzuye, bityo bikagaragaza nkibyimbye cyangwa byongera amazi.
Igihe cyo kohereza: Ukuboza-23-2024