Umgubo wePolymer ophinda unyibilike (RDP), njenge-adhesive yendalo eyimfuneko kwiinkqubo zanamhlanje zokufaka ubushushu, ngokuyintloko iphucula amandla okubopha kwe-mortar, ukuguquguquka, ukumelana nokuqhekeka, kunye nokusebenza kakuhle. Nangona kunjalo, kwiinkqubo zokufaka ubushushu ngaphandle ezivezwe kwiindawo ezinzima ezifana nokukhanya kwelanga, imvula, imijikelo yobushushu, kunye nokukhukuliseka komoya ixesha elide, ukumelana nemozulu ye-RDP kuba yinto ephambili emisela ubomi benkonzo yenkqubo. Ukuhlalutya iimpawu zokwenza ifilimu, ulwakhiwo lwe-polymer, kunye nempembelelo kwisakhiwo se-mortar se-RDP kuvumela uvavanyo olucwangcisiweyo ngakumbi lokuzinza kokumelana nemozulu kwi-mortar yokufakela ubushushu.
1.Ukumelana kwemozulu kwe-RDP kwi-thermal insulation mortar ikakhulu kuvela kwisakhiwo sayo senethiwekhi ye-polymer emva kokwenziwa kwefilimu. I-RDP idla ngokwenziwa ziinkqubo ze-polymer ezifana ne-ethylene-vinyl acetate (VAE) kunye nee-acrylates, ezinokuguquguquka okuhle kunye nokumelana nokuguga kwe-UV. Xa i-RDP iphinda isasazwe ngexesha lenkqubo yokuqina kwe-mortar kwaye iphilisa kunye nezinto ezingezizo ze-organic cementitious, yenza ifilimu ye-polymer eqhubekayo kwii-mortar pores nakwi-aggregate surface. Le filimu incinci ayigcini nje ngokuphucula ukunamathelana kwe-interfacial kodwa ikwaphucula ukumelana namanzi kunye nokumelana nokuqandisa kwe-frozen-thaw system, okwenza ukuba ihlale isebenza kakuhle ngexesha lokujikeleza kobushushu ixesha elide.
2.I-RDP inegalelo elikhulu ekuchaseni iintanda kunye nokuguquguquka kwe-thermal insulation mortar, ngaloo ndlela iphucula ukumelana kwayo nemozulu. Iinkqubo zokukhusela iindonga zangaphandle zinokwanda kobushushu kunye noxinzelelo lokuqina ngenxa yomahluko omkhulu wobushushu bangaphandle. Ukuba i-mortar, njengomaleko okhuselayo, ayinazo iintanda, ichaphazeleka kakhulu ziintanda ezincinci, ivumela amanzi emvula ukuba angene kwaye ikhawulezise ukuguga. Ukuqina kwefilimu ye-RDP kuyayifunxa ngempumelelo ingcinezelo, kunciphisa uxinzelelo lwangaphakathi olubangelwa kukuguquka kwe-substrate okanye utshintsho lobushushu, ngaloo ndlela kunciphisa ukwakheka kweentanda kwaye kuphucule uzinzo lulonke lwesakhiwo se-mortar phantsi kweemeko zenkonzo yangaphandle yexesha elide.
3.Ukuphuculwa kwe-RDP ekuxhathiseni kwamanzi kwi-mortar kukwaluphawu oluphambili lokumelana nemozulu. I-thermal insulation mortar kufuneka igcine izinga lokufunxa amanzi eliphantsi kwiindawo ezimanzi okanye ezifumileyo. Ukungafihli kakuhle kwamanzi kwi-RDP polymer film kunciphisa kakhulu ukufunxa amanzi kwi-capillary, kuvala iindlela zokungena kwamanzi, kwaye kunciphisa amathuba okonakala kwe-freeze-thaw. Izifundo zibonise ukuba ukongeza isixa esifanelekileyo se-RDP kwi-thermal insulation mortar kunokunciphisa izinga lokufunxa amanzi ngama-30% ukuya kuma-50%, kwaye kuphucule izinga lokugcina amandla ayo emva kokuntywiliselwa emanzini ixesha elide, ngaloo ndlela kuqinisekisa ukuqina kwesakhiwo senkqubo.
4.Ukuphuculwa kwe-RDP kwi-microstructure density ye-mortar kwandisa ukumelana kwayo nokuguga. Emva kokusasazeka, amasuntswana e-polymer azalisa izithuba eziphakathi kweemveliso ze-samente hydration, ephucula ukusasazwa kobukhulu bee-pore kwaye edala isakhiwo esifanayo nesixineneyo ngaphakathi kwe-mortar. Olu xinano aluphuculi nje kuphela iipropati zoomatshini kodwa lukwabangela ukuba i-mortar imelane ngakumbi nezinto ezibangela ukubola zangaphandle (ezifana ne-carbon dioxide kunye ne-chloride salts), ngaloo ndlela yandisa ubomi benkonzo yenkqubo yokukhusela ubushushu.
5.Kubalulekile ukuqaphela ukuba iintlobo ezahlukeneyo ze-RDP zahlukile kukumelana kwazo nemozulu. Umzekelo, i-flexible VAE-RDP inokumelana ngcono nokuqandusela kunye nokumelana nokuqhekeka; ngelixa i-acrylic RDP ecocekileyo isebenza ngcono ngokubhekiselele kukumelana nokuguga kwe-UV kunye nokumelana nokutyheli. Ke ngoko, kwizicelo ezisebenzayo, uhlobo olufanelekileyo kunye nobungakanani be-RDP kufuneka kukhethwe ngokusekelwe kwiimpawu zenkqubo yokufakwa kwe-thermal insulation mortar, imeko-bume yokwakha, kunye nobomi boyilo.
6.Iingenelo zokumelana nemozuluI-RDPKwi-thermal insulation mortar zibonakala kakhulu ekuzinzeni kwesakhiwo esakha ifilimu, ukuguquguquka okuphuculweyo, ukuxhathisa kwamanzi okuphuculweyo, kunye nolwakhiwo oluphuculweyo lwe-microstructure. Ezi mpawu ziyenza ikwazi ukumelana ngempumelelo nomonakalo obangelwe kukutshintsha kwemozulu ixesha elide kodonga lwangaphandle, ngaloo ndlela iphucula kakhulu ukuqina kunye nobomi benkonzo yenkqubo yokukhusela yangaphandle.
Ixesha leposi: Novemba-28-2025