Ethers ya selile (HEC, HPMC, MC, nibindi) hamwe nifu ya polymer isubirwamo (mubisanzwe bishingiye kuri VAE, acrylates, nibindi)nibintu bibiri byingenzi byongeweho muri minisiteri, cyane cyane ivanze-ivanze. Buriwese afite imirimo yihariye, kandi binyuze muburyo bwubwenge bwoguhuza, bizamura cyane imikorere rusange ya minisiteri. Imikoranire yabo igaragara cyane cyane mubice bikurikira:
Ethers ya selile itanga ibidukikije byingenzi (kubika amazi no kubyimba):
Kubika amazi: Iyi ni imwe mu mikorere yibanze ya selile ether. Irashobora gukora firime ya hydrata hagati yuduce twa minisiteri n’amazi, bikagabanya cyane umuvuduko wuka wamazi kuri substrate (nkamatafari yamatafari n'amabuye) n'umwuka.
Ingaruka ku ifu ya polymer isubirwamo: Uku gufata neza amazi gukora ibintu byingenzi kugirango ifu ya polymer isubirwemo gukora:
Gutanga igihe cyo gukora firime: uduce duto twa polymer dukeneye gushonga mumazi hanyuma tugasubizwa muri emuliyoni. Ifu ya polymer noneho ihurira muri firime ikomeza, yoroheje ya polymer mugihe amazi agenda azenguruka buhoro buhoro mugihe cyo kumisha minisiteri. Cellulose ether itinda guhumeka kwamazi, igaha ifu ya polymer ifu umwanya uhagije (igihe cyo gufungura) kugirango itatanye kandi yimuke mumyobo ya minisiteri hamwe nintera, amaherezo ikora firime nziza cyane, yuzuye ya polymer. Niba gutakaza amazi byihuse, ifu ya polymer ntishobora gukora firime cyangwa firime izahagarara, bikagabanya cyane imbaraga zayo.
Kugenzura Amazi ya Sima: Kuvomera sima bisaba amazi.Ibikoresho byo kubika amaziya selulose ether yemeza ko mugihe ifu ya polymer ikora firime, sima nayo yakira amazi ahagije kugirango yuzure neza, bityo igateza imbere umusingi wimbaraga za kare na nyuma. Imbaraga zitangwa na sima hydration ihujwe no guhuza firime ya polymer nurufatiro rwo kunoza imikorere.
Cellulose ether itezimbere imikorere (kubyimba no guhumeka ikirere):
Kubyimba / Thixotropy: Ethers ya selile yongerera cyane ubudahangarwa hamwe na thixotropy ya minisiteri (umubyimba iyo ukiri muto, kunanuka iyo ubyutse / ushyizwe). Ibi bizamura imbaraga za minisiteri yo kugabanuka (kunyerera hejuru yubutumburuke), byoroshye gukwirakwira no kurwego, bikavamo kurangiza neza.
Ingaruka yo guhumeka ikirere: Cellulose ether ifite ubushobozi runaka bwo kwinjiza umwuka, itangiza utuntu duto, twinshi kandi duhamye.
Ingaruka ku ifu ya polymer:
Gukwirakwiza neza: Ubukonje bukwiye bufasha ifu ya porojeri ya latx gutatana neza muri sisitemu ya minisiteri mugihe cyo kuvanga no kugabanya agglomeration.
Gukora neza: Ibikoresho byiza byubwubatsi hamwe na thixotropy bituma minisiteri irimo ifu ya latex yoroshye kuyifata neza, ikemeza ko ikoreshwa neza kuri substrate, ikaba ari ngombwa kugirango ikore neza ingaruka zifatika za powder ya latx kuri interineti.
Amavuta yo kwisiga hamwe no kwisiga byimyuka yo mu kirere: Ibibyuka byo mu kirere byinjijwe bikora nk'imipira, bikarushaho kunoza amavuta n'imikorere ya minisiteri. Icyarimwe, izo microbubbles buffer stress muri minisiteri ikomye, ikuzuza ingaruka zikomeye zifu ya latx (nubwo umwuka mwinshi ukabije ushobora kugabanya imbaraga, bityo hakenewe kuringaniza).
Ifu ya polymer isubirwamo itanga guhuza no gushimangira byoroshye (gushiraho firime no guhuza):
Gukora firime ya polymer: Nkuko byavuzwe haruguru, mugihe cyo kumisha minisiteri, uduce twa poro ya latx yegeranya muri firime ya polymer ikomeza.
Ingaruka kuri matrise ya minisiteri:
Iterambere ryuzuzanya: Filime ya polymer irapfunyika ikiraro ibicuruzwa bya hydrata ya sima, ibice bya sima bidafite amazi, byuzuza hamwe na hamwe, byongera cyane imbaraga zo guhuza (cohesion) hagati yibigize muri minisiteri.
Kunoza uburyo bworoshye bwo guhinduka no guhangana: firime ya polymer isanzwe ihindagurika kandi ihindagurika, itanga minisiteri ikomereye ubushobozi bwo guhindura ibintu. Ibi bifasha minisiteri kwifata neza no gukwirakwiza imihangayiko iterwa nihindagurika ryubushyuhe, ihindagurika ryubushuhe, cyangwa kwimuka gake kwa substrate, bikagabanya cyane ibyago byo guturika (kurwanya guhangana).
Kunoza ingaruka zo kurwanya no kwambara: Filime yoroheje ya polymer irashobora gukurura ingufu zingaruka no kunoza ingaruka zo guhangana ningaruka za minisiteri.
Kugabanya modulus ya elastike: gukora minisiteri yoroshye kandi igahuzwa no guhindura imiterere ya substrate.
Ifu ya Latex itezimbere guhuza intera (kuzamura interineti):
Kuzuza igice gikora cya selile ya selile: Ingaruka-yo gufata amazi ya selile ya selile nayo igabanya ikibazo cy "ikibazo cyo kubura amazi hagati" giterwa no kwinjiza amazi menshi na substrate. Icy'ingenzi cyane, ifu ya polymer ibice / emulisiyo bifite imyumvire yo kwimukira kuri minisiteri-ya substrate hamwe na fibre-reinforment fibre (niba ihari).
Gukora urwego rukomeye rwimikorere: firime ya polymer yakozwe kumurongo irinjira cyane kandi ikomora muri micropores ya substrate (guhuza umubiri). Icyarimwe, polymer ubwayo yerekana gufatana neza (chimique / physique adsorption) kubintu bitandukanye (beto, amatafari, ibiti, imbaho za EPS / XPS, nibindi). Ibi byongera cyane imbaraga za minisiteri (adhesion) kubutaka butandukanye, haba muntangiriro na nyuma yo kwibizwa mumazi hamwe no gukonjesha (kurwanya amazi no kurwanya ikirere).
Gukomatanya guhuza imiterere ya pore nigihe kirekire:
Ingaruka za selulose ether: Kubika amazi bigabanya amazi ya sima kandi bikagabanya imyenge irekuye iterwa no kubura amazi; ingaruka zo guhumeka ikirere zitangiza uduce duto duto.
Ingaruka yifu ya polymer: polymer membrane ihagarika igice cyangwa ikiraro cya capillary, bigatuma imiterere ya pore iba nto kandi idahujwe.
Ingaruka ya Synergistic: Ingaruka ihuriweho nibi bintu byombi itezimbere imyenge ya minisiteri, igabanya kwinjiza amazi no kongera ubushobozi bwayo. Ibi ntabwo byongera uburebure bwa minisiteri gusa (kurwanya gukonjesha-gukonjesha no kurwanya umunyu), ariko kandi bigabanya amahirwe ya efflorescence bitewe no kugabanuka kwamazi. Iyi miterere yatunganijwe neza nayo ifitanye isano nimbaraga zo hejuru.
Cellulose ether ni "umusingi" na "garanti": itanga ibidukikije bikenewe byo gufata amazi (ituma hydrata ya sima hamwe na firime ya firime ya latx), igahindura imikorere (igashyira hamwe na minisiteri imwe), kandi ikagira ingaruka kuri microstructure binyuze mubyimbye no kwinjiza ikirere.
Ifu ya Redispersible latex niyo "yongerera imbaraga" n "" ikiraro ": ikora firime ya polymer mugihe cyiza cyakozwe na selile ya selile, igahindura cyane ubumwe bwa minisiteri, guhinduka, guhangana, gukomera, gukomera, no kuramba.
Gukorana kwingenzi: Ubushobozi bwo gufata amazi ya selulose ether nibisabwa kugirango habeho gukora neza ifu ya latex. Hatabitswe amazi ahagije, ifu ya latex ntishobora gukora neza. Ibinyuranye, guhuza byoroshye ifu ya latex ikuraho ubunebwe, guturika, no kudahuza bihagije ibikoresho bishingiye kuri sima, byongera cyane kuramba.
Ingaruka zifatanije: Byombi byuzuzanya mugutezimbere imiterere ya pore, kugabanya kwinjiza amazi, no kongera igihe kirekire, bikavamo ingaruka zifatika. Kubwibyo, muri minisiteri igezweho (nkibikoresho bifata tile, plaster yo hanze yimbere / minisiteri ihuza, minisiteri yipima ubwayo, minisiteri itagira amazi, na minisiteri ishushanya), etherulose ya selile hamwe nifu ya polymer isubirwamo hafi ya yose ikoreshwa muburyo bubiri. Muguhindura neza ubwoko na dosiye ya buri, ibicuruzwa byiza bya minisiteri birashobora gushushanywa kugirango byuzuze ibisabwa bitandukanye. Ingaruka yazo yo guhuza imbaraga nurufunguzo rwo kuzamura minisiteri gakondo mumikorere yo hejuru ya polymer-yahinduwe cimentitifike.
Igihe cyo kohereza: Kanama-06-2025