Ngenxa yokuphuculwa okuqhubekayo kweemfuno zokonga amandla okwakha, ukusetyenziswa kweenkqubo zokukhusela udonga lwangaphandle kwicandelo lokwakha kuya kusanda ngakumbi. I-Expanded polystyrene particles (EPS) insulation mortar isetyenziswa kakhulu ekwakheni iiprojekthi zokukhusela udonga lwangaphandle ngenxa yokusebenza kakuhle kwe-insulation, ubunzima obuphantsi kunye nolwakhiwo olulula. Nangona kunjalo, i-EPS insulation mortar ineengxaki ezifana namandla aphantsi okuqala, ukuqhekeka okulula, kunye nokusebenza kakubi kwe-bonding, okunciphisa uluhlu lwesicelo sayo. Ukuze kuphuculwe ukusebenza kwayo,Umgubo wepolymer ophinda uchitheke, njengezinto ezibalulekileyo eziguqulweyo kwi-organic, iye yaziswa kakhulu kwi-EPS insulation mortar.
1. Iimpawu ezisisiseko zomgubo wepolymer ophinda uqhekeke
Umgubo wepolymer ophinda uqhekeke (RDP) yinto eyenziwe ngomgubo eyenziwe ngokutshiza ukomisa i-polymer emulsion. Iindidi eziqhelekileyo ziquka i-ethylene-vinyl acetate copolymer (EVA), i-acrylic kunye ne-styrene-acrylic. Ingaphinda iqhekeke ibe yi-emulsion emva kokudibana namanzi, kwaye emva kokuxuba nesamente, amanzi kunye ne-aggregate, ithatha inxaxheba kwinkqubo yokufunxa isamente ukuze yenze ifilimu yepolymer, ephucula ukuguquguquka kunye namandla okubopha kwezinto.
2. Impembelelo yomgubo wepolymer ophinda uqhekeke ekusebenzeni kakuhle
Ukongeza ubungakanani obufanelekileyo bepowder yepolymer ephinda idisposiwe kwi-EPS thermal insulation mortar kunokuphucula kakhulu ukugcinwa kwamanzi kunye nokusebenza kwayo. Ifilimu yepolymer eyenziwe yi-RDP kwi-mortar inefuthe elithile lokugcina amanzi, elinokuthi linciphise izinga lokuphuma kwamanzi emkhenkceni, lonyuse ixesha lokwakhiwa kwe-mortar, kwaye lilungele ukwakhiwa okukhulu. Kwangaxeshanye, ubukho be-RDP benza i-mortar paste ithambiswe ngakumbi, inceda amasuntswana e-EPS ukuba asasazeke ngokulinganayo kwi-matrix, kwaye iphucule ukusebenza kokwakhiwa.
Ubungakanani be-RDP eyongeziweyo kufuneka bulawulwe ngaphakathi koluhlu olufanelekileyo. Ukuba ubungakanani obongeziweyo bukhulu kakhulu, i-mortar isenokuba yi-fluid kakhulu, nto leyo enokubangela ukwahlukana phakathi kweeleya kunye nokungalingani. Kwangaxeshanye, inokulibazisa izinga lokufuma kwesamente kwaye ichaphazele ukukhula kwamandla kwangoko.
3. Impembelelo yomgubo wepolymer ophinda uqhekeke kwiipropati zoomatshini
Umgubo wepolymer ophinda udibane unefuthe elikhulu kwiimpawu zoomatshini ze-EPS thermal insulation mortar. Okokuqala, i-RDP inokwenza isakhiwo esidibeneyo ngeemveliso zesamente hydration, iphucule uxinano lwe-mortar, kwaye iphucule kakhulu amandla ayo okubopha kunye nokumelana nokuqhekeka. Kwindawo yokutshintsha kwe-interface, i-RDP inokusonga amasuntswana e-EPS, iphucule ukusebenza kokubopha phakathi kwe-aggregate kunye ne-binder, kwaye ngaloo ndlela iphucule uzinzo lwesakhiwo siphela.
Ngokuphathelele amandla oxinzelelo, isixa esifanelekileyo se-RDP sinokunyusa uxinano lwe-mortar kwaye siphucule amandla ayo okuthwala. Nangona kunjalo, ngenxa yokuba i-EPS ngokwayo iyinto enamandla aphantsi, idosi yayo enkulu iya kunciphisa amandla oxinzelelo apheleleyo. Ngeli xesha, indima ye-RDP ekuphuculeni ukusebenza koxinzelelo ngokuphucula ukubopha kwe-interface icacile ngakumbi. Ke ngoko, kuyilo lomxube, umlinganiselo we-EPS kunye ne-RDP kufuneka ulinganiswe ngokufanelekileyo.
4. Isiphumo somgubo wepolymer ophinda uqhekeke kwisimo sokuqina
Ukuqina luphawu olubalulekileyo lokuvavanya izixhobo ze-thermal insulation mortar. Ifilimu ye-polymer eyenziwe emva kokongeza i-RDP inokunciphisa ngempumelelo ukungena komswakama kunye nee-ion eziyingozi, kwaye iphucule ukungakwazi kokungena kwe-mortar, ukumelana neqhwa kunye nokumelana ne-carbonization. Kwangaxeshanye, ukuguquguquka kwe-polymer kunceda ekunciphiseni uxinzelelo lokuncitshiswa okubangelwa kukutshintsha kobushushu bangaphandle kunye nokufuma, ngaloo ndlela kunciphisa umngcipheko wokuqhekeka kwe-mortar.
Ukungangeni kwamanzi kwe-RDP kwenza ukuba i-EPS thermal insulation mortar ibe nokumelana okungcono kwamanzi kwaye yandise ubomi bayo benkonzo. Kwimvula, ukufuma okuphezulu kunye nezinye iindawo, iingenelo zokusebenza kwe-RDP modified mortar zicacile ngakumbi.
Umgubo wepolymer ophinda uchithekeinefuthe elikhulu lokuguqulwa kwi-EPSi-thermal insulation mortar. Ayiphuculi nje kuphela ukusebenza kolwakhiwo lwe-mortar, iphucula amandla okubopha nge-substrate kunye namaqhekeza e-EPS, kodwa ikwaphucula ngokufanelekileyo iimpawu zoomatshini kunye nokuqina. Ngokuphucula uhlobo kunye nomthamo we-RDP, ukusebenza okubanzi kwe-thermal insulation mortar ye-EPS kunokuphuculwa ngakumbi ukuhlangabezana neemfuno zokonga amandla kunye nokusetyenziswa kwezakhiwo ezahlukeneyo. Kuphando lwexesha elizayo kunye nokusebenza kobunjineli, kuyimfuneko ukuphonononga ngakumbi isiphumo esidibeneyo se-RDP kunye nezinye izinto ezidityanisiweyo, kunye nokusebenza kwayo kwexesha elide phantsi kweemeko ezahlukeneyo zokusingqongileyo.
Ixesha leposi: Epreli-26-2025