I-Redex ye-Latex ye-Latex yindawo esetyenziswayo esetyenziswayo. Ngumgubo ofunyenwe sisitshizi esomisa i-uplsion ye-polymer nge-polyvinyl utywala njenge colloid ekhuselweyo. Lo mgubo unokuphinda usasazeke ngokulinganayo emva kokudibana kwamanzi. , ukwenza i-emulsion. Ukongezwa komgubo wePolymer Polymer kunokuphucula ukusebenza kwendawo yokugcina amanzi, kunye nokusebenza kwe-cerang, ukuguquguquka, ukungasebenzi kakuhle kodaka olulukhuni. Oku kulandelayo wazisa indlela yePolymer Polymer Polly e-Creating Storser kunye nempembelelo yayo ekusebenzeni kwesamente.
Iziphumo kwiNkqubo yeHydration yeSamente kunye neWation Dation
Logama nje izinto ezisekwe kwisamente ezongeziweyo ngomgubo we-Latex Amanzi, ukuphendula i-hydimetion uqala ngokukhawuleza, kwaye kwangaxeshanye, kwaye kwangaxeshanye, kwaye kwangaxeshanye, kwaye kwangaxeshanye, kwaye kwangaxeshanye se-biltirite kwi-gelsings kunye neHlemed. Ngenkqubela phambili yokuphendula kwe-hydration, iimveliso ze-hydiment yesanda, kwaye amasuntswana ePolymer ahlanganiswe kwiipores ze-capillary kwaye wenza umaleko osondeleyo kumphezulu wejeli kunye namasuntswana angenamanzi. Amasuntswana ePolymed ahlanganisiweyo ngokuthe ngcembe agcwalisa iipores ze-capillary, kodwa akakwazanga ukuzalisa ngokupheleleyo umphezulu wepores. Njengomdyusi okanye ukomisa kunciphisa ukuqina ngakumbi, amasuntswana ePolymer apakishwe ngokuqinileyo kwijeli kunye ne-poresce kwifilimu eqhubekayo, enza umxube we-cusration ye-cerment yemveliso yemveliso yemveliso yemveliso. Kuba imveliso ye-hydration ene-polymer yenza isigqubuthelo kwi-interface, inokuchaphazela ukukhula kwe-Ettrierite kunye ne-Coarcium Calcium Crystals; Kungenxa yokuba i-polymer inamathele kwifilimu kwi-pores yendawo yotshintsho lwesamente, esenza i-polymer yesamente esekwe kwindawo yotshintsho yi-denser. Amaqela asebenzayo kwezinye iimolekyuli zePolymer aya kuba nempendulo yokunxibelelanisa ne-CA2 +, i-A13 +, njl njl. Njengoko indawo ye-cel yesamente iphuhlisa, amanzi aphelile kwaye amasuntswana ePolymer avalelwa ngokuthe ngcembe kwiipores ze-capillary. Ngomgangatho ongaphezulu wesamente, amanzi asekwe phantsi kwe-capillary ihla, kwaye amasuntswana e-polymer ahlanganisa umxube we-qual shrication imveliso ye-qumed / i-agedraddment, enza i-agergates eqhubekayo enamachaphaza amakhulu okanye oziphethe kakuhle.
Indima yePolymer Polymer Pollemer kwi-puldar ilawulwa ziinkqubo ezimbini zesamente yesamente kunye ne-polymer filimu. Ukwenziwa kwenkqubo yokudityaniswa kwe-quance hydration kunye ne-polymer yefilimu kuyafezekiswa ngamanyathelo ama-4:
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(3) amasuntswana e-polymer akha ungqimba oluqhubekayo noluqinileyo
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I-Amulssion yokusasaza i-polymer polymer powder inokwenza ifilimu eqhubekayo ephethwe ngamanzi (inethiwekhi yePolymer) emva komile, kwaye le thungelwano i-Elastic ephantsi le-polymer inokuphucula ukusebenza kwesamente; Amanye amaqela athile e-themes aphendule ngokuzikhethela kunye nemveliso ye-hydration ye-quards ukwenza i-Bridge ye-Bridge ekhethekileyo, ephucula isakhiwo somzimba semveliso ye-quadration kwaye inciphise isizukulwana esingumgibeli. Emva kokuba i-polymer ye-polymer ye-polymer yongezwa, inqanaba lokuqala le-hydration yesamente liyacothiswa, kwaye ifilimu ye-polymer ingayisonga okanye isonge ngokupheleleyo i-cementsungs, ukuze isamente iphuculwe ngokupheleleyo.
Impembelelo kumandla e-Box
I-emulsion kunye ne-polymer polymer powder inokwenza amandla aphezulu kunye namandla amakhulu kwizixhobo ezahlukeneyo emva kokwenziwa kwefilimu. Zidityaniswe nesamente ye-inorganic ye-binder njengendawo yesibini kudaka. Isamente kunye nePolymer zinokudlala ngokulandelelana kwezixhobo ezihambelana nazo, ukuze ukwenziwa kodaka kunokuphuculwa. Ngokujonga ubume bendawo ye-polymer yesamente, kuyakholelwa ukuba ukongezwa kwePolymer Polymer Polly kunokwenza ifilimu yePolymer kwaye ibe yinxalenye yodonga olungengulo. Amandla e-Aggregate, ngaloo ndlela enyusa uxinzelelo lokungaphumeleli kodaka kunye nokwandisa ingxaki yokugqibela. Intsebenzo yexesha elide yomqhubi wePolymer Polymer eProlymer ekufundwani. Yaqwalaselwa yi-SEM ukuba emva kweminyaka eli-10, uLwakhiwo lwePoleremer of Polymer kwi-Polymer ekuthengweni koludaka luhleli luguqukayo, luhlala luhleli, ukunyangwa ngokulinganayo kunye nokucinezelwa kwengqondo. amandla kunye ne-hydrophobility. Wang Ziming et al. [11] wafunda indlela yokwenziwa kwendlela yokufumana i-temex ye-telex kumandla e-tiles, kwaye wafumanisa ukuba i-polymer yomiswe ukwenza ifilimu yesandla, kwaye ichaphazela ukwenziwa komphezulu, kwaye kamva ngexesha lenkqubo, I-polymer nayo inegalelo kwinkqubo ye-hydrate kunye ne-shrinkage yesamente kwi-binder. Esona siphumo siphezulu, yonke iya kuba noncedo olungcono lokuphucula amandla ebhondeni.
Ukongeza i-tedex ka-Latex ye-PATEX kwi-TARRAN NOKUQINISA KAKHULU NGEZITHUBA ZABASEBENZI Ifilimu yangaphakathi isenziwa kwaye iqinisekiswe ngokuqinileyo kumphezulu we-substrate, emva koko iqinisekisa amandla amahle phakathi kwezinto ezinesamente kunye nenqanaba.
Ungeniso lwentsebenzo yokusebenza kodaka ngumgubo we-Latex kukuba ipoller ye-latex yi-poleri yemolekyuli enamaqela epoler. Xa umgubo we-Latex uxutywe namasuntswana e-EPS, iziqendu ezingengophango kwi-Polymer Piin yomgubo we-Latex yindawo yokuhlala ye-EPS. Amaqela eporala kwi-polymer agxile ngaphandle kumphezulu wamasuntswana e-EPS, ukuze amasuntswana e-EPS atshintsha ukusuka kwi-hydrophobiction kwi-hydrophicicity. Ukuntywila, ingxaki yokufakelwa kwesidlo esikhulu. Ngeli xesha, ukongeza isamente kunye nokuxuba, amaqela eporala akhutshiwe kumphezulu weentshukumo ze-EPS esebenzisane namasuntswana e-eps kwaye udibanise ngokusondeleyo, ukwenziwa kwe-EPS kwi-EPS iphucule kakhulu. Oku kubonakaliswa kwinto yokuba amasuntswana e-EPS emanzi ngokulula yi-clames slime, kwaye amandla okubopha phakathi kwezi zimbini ziphuculwe kakhulu.
Impembelelo ekuguqukeni kwezixhobo ezisekwe kwizixhobo zesamente
I-redex ye-Latex ye-Latex inokuphucula amandla e-shexi, amandla okubulala kunye nezinye iipropathi zodaka kuba zinokwenza ifilimu ye-polymer phezu kwamacaka aphantsi. Kukho i-pores kumphezulu wefilimu, kwaye umphezulu weepores ugcwaliswa ngudaka, ukuze uxinzelelo loxinzelelo luncitshisiwe. Kwaye phantsi kwesenzo samandla angaphandle kuya kuvelisa ukuphumla ngaphandle komonakalo. Ukongeza, udaka lwe-rigid i-rigd emva kokuba isamente ihlanjwe, kwaye i-polymer kwi-skeleton inomsebenzi odibeneyo, ofana nezicubu zomzimba womntu. Ifilimu eyenziwe ngepolymer inokuthelekiswa namalungu kunye ne-ligaments, ngaloo ndlela iqinisekisa ubuninzi kunye nobunzima.
Kwinkqubo yokuthengiswa kwe-polymer eguqulweyo, i-polymer eqhubekayo negqibe ifilimu ihambelana ne-quatimes paste kunye namasuntswana esanti, kwangaxeshanye epheleleyo, kwaye kwangaxeshanye apheleleyo, kwaye kwangaxeshanye azale inethiwekhi ye-elastiki. Ke ngoko, ifilimu yepolmeremeress ingadlulisela uxinzelelo ngempumelelo kunye nengxabano. Ifilimu ye-polymeremen ingayivala i-shrinkaged rocks kwi-polymer yobumbano, yenza i-shrinkid rocks iphilise, kwaye iphucule ubuqhetseba kunye namandla okuzala kodaka. Ubukho bemimandla eguquguqukayo kakhulu kwaye enkulu kakhulu iphucula ukuguquguquka kunye nokuqina kodaka, ukubonelela ngokuziphatha kunye nokusebenza ngokudibeneyo. Xa kusetyenziswa amandla angaphandle, inkqubo ye-microcko yokusasazeka ilibazisekile ngenxa yokuphuculwa kokuguquguquka kunye nobunzima kude kufikelwe uxinzelelo oluphezulu. I-Polymer Polymer Polymer idlala indima ekuthinteleni ukudibanisa ii-microcks ukuya kwii-rocks. Ke ngoko, i-polymer ye-polymer polymer yonyusa uxinzelelo kunye nokungaphumeleli kwento leyo.
Impembelelo kuQinisekiso lweZinto ezisekwe kwiSamente
Ukusekwa kweefilimu zePolymer kubaluleke kakhulu kwiipropathi ze-polymer feres. Ngexesha lokumiselwa kunye nenkqubo yokuqinisa yesamente inamathisele, iicani ezininzi ziya kwenziwa ngaphakathi, eziya kuba ziinxalenye ezibuthathaka zesamente. Emva kokuba i-Polymer Polymer powder yongezwa, umgubo wePolymer ngoko nangoko ukusasazeka ngokukhawuleza kwi-emulsion ekunxibelelaneni namanzi, kwaye ukuqokelela kwindawo etyebileyo yamanzi (okt, kwi-cavity). Njengoko i-quations inamathisela kwaye i-Horens, ukuhamba kwamasuntswana ePolymer kuya kuthintelwe ngakumbi, kwaye i-vistraly engaphezulu, kunye nengxaki yokuhlangana phakathi kwamanzi nomoya kubangela ukuba balungelelanise ngokuthe ngcembe. Xa amasuntswana e-polymer aqala ukunxibelelana, amanzi kwi-capillaities, kwaye i-polymer yenza ifilimu eqhubekayo ejikeleze i-cavity, ukomeleza ezi ndawo zibuthathaka. Ngeli xesha, ifilimu ye-polymeremer ayinakuphela kuphela indima ye-hydrophobic, kodwa nayo ayiyi kuthintela i-capillary, ukuze lo mbambano lube ne-hydrophobiction kunye nomoya.
Ungqengqelo ngaphandle kokwenza i-polymer ixhunyiwe kakhulu. Ngokuchasene noko, udaka lwePonti olulungisiweyo lwesamente lwenza ukuba wonke udaka lunxulumene ngenxa yobukho befilimu ye-polymer, ngaloo ndlela ukufumana iipropathi zoomatshini kunye nokungavisisani kwemozulu. isondo. Ngomgubo wesamente eguqulweyo ye-Latex, iposti ye-Latex iya konyusa ukuthambeka kwe-qumes, kodwa ukunciphisa i-sursity yendawo yenguqu phakathi kwesamente i-quance kunye ne-aggregate, ukuba i-fargrete yodaka ayiguquki. Emva kwepowude ye-Latex yenziwa yifilimu, iipores ezingqengqelekayo zinokuvinjwa, ukuze isinxibelelanisi semimandla eguqulweyo siphuculwe, kwaye amandla okukhula kwe-quidx pople oguqulweyo aphuculwe. Inefuthe elihle ekuphuculeni ukuqina kodaka.
Okwangoku, ukusasazeka kwe-polymer poller idlala indima ebalulekileyo njengesongezo sodaka lokwakha. Ukongeza i-tedex ye-latex ye-Latex kudaka kunokulungiselela iimveliso ezahlukeneyo zokungcola ezinjenge-tile, udaka lokuzithobela, ukuhlelwa, i-prout, i-cerdof yento esebenzayo. Umda wesicelo kunye nokusebenza kwesicelo sokwakha isihinga. Ewe kunjalo, kukho iingxaki zokuziqhelanisa phakathi kwe-polymer poller ye-polymer kunye nesamente, ukungqinwa kunye nokunikwa kwemiyalelo, ekufuneka inikwe ingqalelo eyaneleyo kwizicelo ezithile.
Ixesha leposi: NgoFebwe-20 ukuya ku-525