Inkcazo:Eli phepha liphonononga impembelelo kunye nomthetho we-cellulose ether kwiipropati eziphambili ze-adhesives tile ngokusebenzisa iimvavanyo ze-orthogonal. Imiba ephambili yokulungiswa kwayo inentsingiselo ethile yereferensi yokulungelelanisa ezinye iipropathi zokunamathela kwi-tile.
Kule mihla, imveliso, ukusetyenzwa kunye nokusetyenziswa kwe-cellulose ether kwilizwe lam zikwindawo ephambili kwihlabathi. Uphuhliso olongezelelweyo kunye nokusetyenziswa kwe-cellulose ether ngundoqo kuphuhliso lwezinto ezintsha zokwakha kwilizwe lam. Ngophuhliso oluqhubekayo lwe-adhesives tile kunye nokuphucula ngokuqhubekayo kunye nokuphucula ukusebenza kwabo, ukukhethwa kweentlobo zezicelo zodaka kwimarike entsha yezinto zokwakha kuye kwatyetyiswa. Nangona kunjalo, indlela yokuphucula ngakumbi ukusebenza okuphambili kokuncamatheliswa kweetayile kuye kwaba luphuhliso lwemarike yokuncamathelisa ithayile. indlela entsha.
1. Vavanya imathiriyeli ekrwada
I-Cement: I-PO 42.5 yesamente eqhelekileyo yasePortland eveliswe nguChangchun Yatai isetyenziswe kolu vavanyo.
Isanti ye-quartz: I-50-100 mesh isetyenziswe kolu vavanyo, iveliswe eDalin, e-Inner Mongolia.
Redispersible latex powder: I-SWF-04 isetyenziswe kolu vavanyo, oluveliswe nguShanxi Sanwei.
Ifayibha yomthi: Ifiber esetyenziswe kolu vavanyo iveliswa yiChangchun Huihuang Building Materials.
I-Cellulose ether: Olu vavanyo lusebenzisa i-methyl cellulose ether ene-viscosity ye-40,000, eveliswe nguShandong Ruitai.
2. Indlela yokuvavanya kunye nohlalutyo lwesiphumo
Indlela yokuvavanya yamandla e-tensile bond ibhekisela kwi-JC / T547-2005 eqhelekileyo. Ubungakanani beqhekeza lovavanyo yi-40mm x 40mm x 160mm. Emva kokuqulunqa, yiyeke imele i-1d kwaye isuse i-formwork. Inyangwa kwibhokisi yokufuma engaguqukiyo kangangeentsuku ezingama-27, ibotshelelwe intloko yomzobo kunye nebhloko yovavanyo nge-epoxy resin, emva koko ibekwe kwibhokisi yobushushu obungaguqukiyo kunye nokufuma kwiqondo lobushushu (23±2)°C kunye nokufuma okuzalanayo ( 50±5)%. 1d, Jonga iisampulu iintanda phambi kovavanyo. Fakela isixhobo kumatshini wokuvavanya i-electronic tensile jikelele ukuqinisekisa ukuba umdibaniso phakathi kwesixhobo kunye nomatshini wokuvavanya awugotywanga, tsala umfanekiso ngesantya (250±50) N/s, kwaye urekhode idatha yovavanyo. Isixa se-samente esisetyenzisiweyo kolu vavanyo ngu-400g, ubunzima bezinye izinto ngu-600g, umlinganiselo we-binder wamanzi uqiniswe kwi-0.42, kunye noyilo lwe-orthogonal (izinto ezi-3, amanqanaba ama-3) zamkelwe, kwaye izinto zinomxholo. ye-cellulose ether, umxholo we-rubber powder kunye nomlinganiselo wesamente kwisanti, ngokuhambelana namava ophando lwangaphambili ukugqiba umthamo othile wento nganye.
2.1 Iziphumo zovavanyo kunye nohlalutyo
Ngokuqhelekileyo, i-adhesives ye-tile ilahlekelwa amandla e-tensile bond emva kokuntywiliselwa emanzini.
Ukusuka kwiziphumo zovavanyo ezifunyenwe luvavanyo lwe-orthogonal, kunokufunyaniswa ukuba ukonyusa isixa se-cellulose ether kunye nomgubo werabha kunokuphucula amandla e-tensile bond ye-adhesive ye-tile ukuya kwinqanaba elithile, kunye nokunciphisa umlinganiselo wodaka kwisanti kunokunciphisa amandla ayo. Ukuqina kokuqina kwebhondi, kodwa iziphumo zovavanyo ezi-2 ezifunyenwe luvavanyo lwe-orthogonal azikwazi ukubonisa ngokucacileyo ifuthe lezinto ezintathu kukuqina kwebhondi yokuncamathelisa kwithayile ye-ceramic emva kokungena emanzini. kunye ne-tensile bond emva kwe-20 min yokomisa. Ke ngoko, ukuxoxa ngexabiso elinxulumeneyo lokuhla kwamandla ebhondi eqinile emva kokuntywiliselwa emanzini kunokubonakalisa ngcono impembelelo yezinto ezintathu ezikuwo. Ixabiso elihambelanayo lokuhla kwamandla limiselwa ngamandla oqobo lwebhondi yokuqina kunye nokomelela emva kokuntywiliselwa emanzini. Umyinge womahluko kumandla ebhondi ukuya kumandla ebhondi yentsimbi yokuqala ubaliwe.
Uhlalutyo lwedatha yovavanyo lubonisa ukuba ngokunyusa umxholo we-cellulose ether kunye ne-rubber powder, amandla e-tensile bond emva kokucwiliswa emanzini anokuphuculwa kancinci. Amandla okubambisana kwe-0.3% yi-16.0% ephezulu kune-0.1%, kwaye ukuphuculwa kubonakala ngakumbi xa inani le-rubber powder linyuswa; Xa inani liyi-3%, amandla okudibanisa akhula nge-46.5%; ngokunciphisa umlinganiselo wodaka kwisanti, amandla ebhondi yokuntywiliselwa emanzini anokuncipha kakhulu. Amandla ebhondi ehle nge-61.2%. Ingabonwa nge-intuitively ukusuka kwi-Figure 1 ukuba xa inani le-rubber powder linyuka ukusuka kwi-3% ukuya kwi-5%, ixabiso elihambelanayo lokuhla kwamandla ebhondi landa nge-23.4%; inani le-cellulose ether linyuka ukusuka kwi-0.1% ukuya Kwinkqubo ye-0.3%, ixabiso elihambelanayo lokunciphisa amandla ebhondi linyuke nge-7.6%; ngelixa ixabiso elihambelanayo lokuhla kwamandla ebhondi linyuke nge-12.7% xa umlinganiselo wodaka kwisanti wawuyi-1:2 xa uthelekisa ne-1:1. Emva kokuthelekisa kulo mzobo, kunokufumaneka ngokulula ukuba phakathi kwezinto ezintathu, ubungakanani bomgubo werabha kunye nomlinganiselo wodaka kwisanti kunempembelelo ecacileyo ngakumbi kumandla ebhondi yokuqina yokuntywiliselwa emanzini.
Ngokutsho kwe-JC / T 547-2005, ixesha lokumisa i-adhesive tile likhulu okanye lilingana ne-20 min. Ukwandisa umxholo we-cellulose ether kunokwenza amandla e-tensile bond anyuke ngokuthe ngcembe emva kokuhamba emoyeni imizuzu engama-20, kunye nomxholo we-cellulose ether yi-0.2%, 0.3%, xa kuthelekiswa nomxholo we-0.1%. Amandla okubambisana anyuke nge-48.1% kunye ne-59.6% ngokulandelanayo; ukwandisa isixa somgubo werabha kunokwenza ukuba amandla e-tensile bond anyuke ngokuthe ngcembe emva komoya we-20imvula, isixa se-rubber powder yi-4%, 5% % xa kuthelekiswa ne-3%, amandla ebhondi anyuke nge-19.0% kunye ne-41.4% ngokulandelelana; ukunciphisa umlinganiselo wodaka kwisanti, amandla okuqina kwebhondi emva kwemizuzu engama-20 yomoya wehla kancinci, kwaye umlinganiselo wodaka kwisanti wawuyi-1:2 xa kuthelekiswa nodaka lwe-1: 1, amandla ebhondi yokuqina ancitshiswa ngama-47.4%. . Ukuqwalasela ixabiso elihambelanayo lokunciphisa amandla ayo okudibanisa kunokubonisa ngokucacileyo impembelelo yezinto ezahlukeneyo, ngokusebenzisa izinto ezintathu, kunokufunyanwa ngokucacileyo ukuba ixabiso elihambelanayo lokuhla kwamandla e-tensile bond emva kwemizuzu engama-20 yokumisa, emva kwe-20. imizuzu yokomisa, ifuthe lodaka ratio kumandla bond tensile ayisekho njengoko ezibalulekileyo njengangaphambili, kodwa isiphumo umxholo cellulose ether kubonakala ngakumbi ngeli xesha. Ngokunyuka komxholo we-cellulose ether, ixabiso elihambelanayo lamandla ayo liyancipha ngokuthe ngcembe kwaye ijika lithande ukuba mnene. Ingabonwa ukuba i-cellulose ether inefuthe elihle ekuphuculeni amandla okubopha i-adhesive tile emva kwemizuzu engama-20 yokumisa.
2.2 Ukumiselwa kwefomula
Ngokusebenzisa olu vavanyo lungentla, isishwankathelo seziphumo zoyilo lovavanyo lwe-orthogonal lufunyenwe.
Iqela lokudibanisa i-A3 B1 C2 kunye nokusebenza okugqwesileyo kunokukhethwa kwisishwankathelo seziphumo zoyilo lovavanyo lwe-orthogonal, oko kukuthi, umxholo we-cellulose ether kunye ne-rubber powder yi-0.3% kunye ne-3%, ngokulandelanayo, kunye nomlinganiselo wodaka. ukuya esantini yi-1:1.5.
3. Isiphelo
(1) Ukwandisa umthamo we-cellulose ether kunye ne-rubber powder kunokunyusa amandla e-tensile bond ye-adhesive tile ukuya kwinqanaba elithile, ngelixa ukunciphisa umlinganiselo wodaka kwisanti, amandla e-tensile bond ayancipha, kunye nomlinganiselo wodaka kwisanti. isiphumo sobungakanani be-etere yeselulosi kukuqina kwebhondi yokuncamathelisa kwethayile yeceramic emva kokuntywiliselwa emanzini kubaluleke kakhulu kunesiphumo somthamo we-ether yeselulosi kuyo;
2 Emva kokuqina kobudlelwane obuqinileyo;
(3) Xa isixa se-rubber powder si-3%, isixa se-cellulose ether yi-0.3%, kwaye umlinganiselo wodaka kwisanti ngu-1: 1.5, ukusebenza kwe-adhesive tile kungcono, eyona nto ibhetele kolu vavanyo. . Indibaniselwano yenqanaba elungileyo.
Ixesha lokuposa: Feb-23-2023