1. Nhanganyaya
Polystyrene particle insulation mortar chinhu chinowanzo shandiswa pakuvaka kunze kwemadziro ekudzivirira.Iyo inosanganisa zvakanakira polystyrene particles (EPS) uye yechinyakare dhaka, ichipa yakanaka insulation mhedzisiro uye michina zvinhu.Kuti uwedzere kuvandudza kushanda kwayo kwakazara, kunyanya kukwidziridza kunamatira kwayo, kuputika kwekusagadzikana uye kuita kwekuvaka, redispersible latex powder (RDP) inowanzowedzerwa.RDP ndeye polymer emulsion mune hupfu fomu inogona kuparadzirwa zvakare mumvura.
2. Mhedziso ye redispersible latex powder (RDP)
2.1 Tsanangudzo uye zvivakwa
Redispersible latex poda hupfu hwakagadzirwa nekupfapfaidza kuomesa emulsion yepolymer inowanikwa neemulsion polymerization.Inogona kuparadzirwa zvakare mumvura kuti iite emulsion yakagadzikana ine yakanaka firimu-kugadzira uye adhesion properties.Zvakajairwa maRDPs anosanganisira ethylene-vinyl acetate copolymer (EVA), acrylate copolymer uye styrene-butadiene copolymer (SBR).
2.2 Mabasa makuru
RDP inoshandiswa zvakanyanya mukuvaka uye ine mabasa anotevera:
Enhad adhesion: Ipa yakanakisa adhesion kuita, zvichiita kuti chisungo pakati pedhaka ne substrate, dhaka uye polystyrene zvimedu zvisimbe.
Kuvandudza kupikisa kwekupwanyika: Kuvandudza kupikisa kwedhaka nekugadzira firimu repolymer rinoshanduka.
Kuvandudza kuita kwekuvaka: Wedzera kuchinjika uye yekuvaka fluidity yedhaka, nyore kuparadzira uye nhanho.
Kuvandudza kusamira kwemvura uye kuomesa-kunyungudika kuramba: Wedzera kudzivirira kwemvura uye kutonhora-kutenderera kutenderera kwedhaka.
3. Kushandiswa kweRDP mu polystyrene particle insulation mortar
3.1 Kuvandudza kubatana kwesimba
Mune polystyrene particle insulation dhaka, adhesion ibasa rakakosha.Sezvo polystyrene particles pachawo ari hydrophobic zvinhu, zviri nyore kudonha kubva mudhaka matrix, zvichikonzera kutadza kweiyo insulation system.Mushure mekuwedzera RDP, iyo polymer firimu yakaumbwa mudhaka inogona kunyatsovhara pamusoro pepolystyrene zvimedu, kuwedzera nzvimbo yekubatanidza pakati pavo nedhaka matrix, uye kugadzirisa iyo interfacial bonding simba.
3.2 Kuwedzera kusada kutsemuka
Iyo polymer firimu yakaumbwa neRDP ine yakakwirira kuchinjika uye inogona kugadzira mesh chimiro mukati medhaka kudzivirira kuwedzera kwekutsemuka.Iyo firimu yepolymer inogonawo kutora kushushikana kunokonzerwa nekunze kwemasimba, nekudaro kudzivirira zvinobudirira kutsemuka kunokonzerwa nekuwedzera kwekupisa uye kuputika kana shrinkage.
3.3 Kuvandudzwa kwekuita kwekuvaka
Polystyrene particle insulation mortar inowanzoita kusanaya kwemvura uye kuoma mukupararira panguva yekuvaka.Kuwedzerwa kweRDP kunogona kuvandudza zvakanyanya kuyerera uye kushanda kwedhaka, zvichiita kuti dhaka rive nyore kuvaka nekuvandudza kushanda kwekuvaka.Mukuwedzera, RDP inogonawo kuderedza kuparadzaniswa kwedhaka uye kuita kuti kugoverwa kwezvikamu zvevhu zvive zvakafanana.
3.4 Kuvandudza kusamira kwemvura uye kusimba
Polystyrene particle insulation mortar inoda kuve neyakanaka kudzivirira mvura mukushandiswa kwenguva refu kudzivirira mvura inonaya kubva mukubvisa iyo insulation layer.RDP inogona kuumba hydrophobic layer mudhaka kuburikidza neayo firimu-kugadzira zvimiro, zvinobudirira kudzivirira hunyoro kupinda mudhaka.Uye zvakare, iyo inochinjika firimu yakapihwa neRDP inogona zvakare kusimudzira dhaka rinopesana nechando uye kunyungudutsa zvivakwa uye kuwedzera hupenyu hwesevhisi yedhaka rekudzivirira.
4. Nzira yekuita
4.1 Firimu-kugadzira maitiro
Mushure mekunge RDP yaparadzirwa zvakare mumvura mudhaka, mapolymer particles zvishoma nezvishoma anobatana kuita imwe kuita inoenderera mberi polymer firimu.Iyi firimu inogona kunyatsovhara maburi madiki mudhaka, kudzivirira kupindira kwemwando uye zvinhu zvinokuvadza, uye kuwedzera simba rekubatanidza pakati pezvimedu.
4.2 Enhanced interface effect
Munguva yekuomeswa kwedhaka, RDP inogona kutamira kune interface pakati pedhaka uye polystyrene particles kuti iite interface layer.Iyi firimu yepolymer ine kunamatira kwakasimba, iyo inogona kuvandudza zvakanyanya simba rekubatanidza pakati pe polystyrene particles uye dhaka matrix uye kuderedza chizvarwa chekuputsika kwe interface.
4.3 Kuvandudza kushanduka
Nekugadzira inochinjika network chimiro mukati medhaka, RDP inowedzera kushanduka kwese kwedhaka.Iyi network inoshanduka inogona kuparadzira kushushikana kwekunze uye kuderedza kushushikana, nekudaro ichivandudza kutsemuka kuramba uye kusimba kwedhaka.
5. Mhedzisiro yeRDP yekuwedzera
5.1 Mari yekuwedzera yakakodzera
Huwandu hweRDP hwakawedzerwa hune mhedzisiro yakakosha pakuita kwepolystyrene particle insulation mortar.Kazhinji, huwandu hweRDP hwakawedzerwa huri pakati pe1-5% yehuwandu hwesementitious material mass.Kana iyo mari yakawedzerwa iri pakati nepakati, inogona kuvandudza zvakanyanya simba rekubatanidza, kutsemuka kuramba uye kuita kwekuvaka kwedhaka.Nekudaro, kuwedzera zvakanyanya kunogona kuwedzera mitengo uye kukanganisa kuoma uye kumanikidza simba redhaka.
5.2 Hukama pakati pekuwedzera huwandu uye kuita
Simba reBond: Sezvo huwandu hweRDP hwakawedzerwa hunowedzera, simba rekubatanidza redhaka rinowedzera zvishoma nezvishoma, asi mushure mokunge rasvika kune imwe chikamu, mhedzisiro yekuwedzera kuwedzera mari yakawedzerwa pakuvandudzwa kwesimba rekubatanidza ishoma.
Crack resistance: Huwandu hwakakodzera hweRDP hunogona kuvandudza zvakanyanya kutsemuka kwedhaka, uye kushoma kana kuwanda kwekuwedzera kunogona kukanganisa mhedzisiro yayo.
Kuita kwekuvaka: RDP inovandudza kuyerera uye kushanda kwedhaka, asi kuwedzera kwakanyanya kunokonzeresa kuti dhaka risave viscous, izvo zvisingaenderane nemabasa ekuvaka.
6. Kushanda kunoshanda uye mhedzisiro
6.1 Nyaya yekuvaka
Mumapurojekiti chaiwo, RDP inoshandiswa zvakanyanya mumasisitimu ekunze ekunze (EIFS), madhaka epurasita uye madhaka ekusunga.Semuenzaniso, mukati mekunze kwemadziro ekudzivirira kuvakwa kwenzvimbo huru yekutengeserana, nekuwedzera 3% RDP kune polystyrene particle insulation mortar, kuita kwekuvaka uye kuvharidzira mhedzisiro yedhaka kwakagadziridzwa zvakanyanya, uye njodzi yekutsemuka panguva yekuvaka yaive. zvinobudirira kuderedzwa.
6.2 Kuongorora kwekuongorora
Chidzidzo chekuyedza chakaratidza kuti iyo polystyrene particle insulation mortar pamwe nekuwedzera kweRDP yakave nekunatsiridza kukuru musimba rekubatanidza, kumanikidza simba uye kutsemuka kuramba pamazuva makumi maviri nemasere.Kuenzaniswa nemasampuli ekudzora pasina RDP, simba rekubatanidza reRDP-yakawedzerwa samples yakawedzera ne30-50% uye kushomeka kwekuputika kwakawedzera ne40-60%.
Redispersible latex powder (RDP) ine kukosha kwekushandisa kwakakosha mu polystyrene particle insulation mortar.Iyo inonyatso kunatsiridza kushanda kwakazara kweiyo insulation dhaka nekusimudzira simba rekubatanidza, kunatsiridza kutsemuka, kunatsiridza mashandiro ekuvaka, nekuvandudza kudzivirira kwemvura uye kusimba.Mumashandisirwo anoshanda, iyo yakakodzera yekuwedzera yeRDP inogona kuvandudza zvakanyanya kugadzikana uye kusimba kweiyo insulation system, ichipa vimbiso yakakosha yekuvaka kuchengetedza kwesimba uye kuchengetedzwa kwemaitiro.
Nguva yekutumira: Jun-19-2024