Basa reinogona kupararirazvepolimaupfumuupfu hweputty: ine kunamatira kwakasimba uye hunhu hwemakanika, kusapinda mvura kwakanyanya, kupindira kwemvura, uye kuramba kwealkali zvakanyanya uye kusakara, uye inogona kuvandudza kuchengetedza mvura uye kuwedzera Nguva yekuvhurika yekuwedzera kugara kwenguva refu.
1. Mhedzisiro yedhaka richangobva kusanganiswa
1) Kuvandudza kuvaka.
2) Kuwedzera kuchengetwa kwemvura kuti mvura isime irambe ichinyorova.
3) Wedzera kugona kushanda.
4) Dzivisai kupwanya nekukurumidza.
2. Mhedzisiro yekuomesa dhaka
1) Deredza elastic modulus yemortar uye wedzera kuenderana ne base layer.
2) Wedzera kuchinjika uye dzivisa kutsemuka.
3) Kuvandudza kusimba kwehupfu huchidonha.
4) Kusanyanya kunyungudika kana kuderedza kunyudzwa kwemvura.
5) Wedzera kunamira kune hwaro hwepasi.
Upfu hwelatex hunonyungudika hunogadzira polymer emulsion kana hwasangana nemvura. Munguva yekusanganisa nekuomesa, emulsion inobviswa mvura zvakare. Upfu hwelatex hunoshanda muputty powder, uye maitiro ekugadzira system ye syment hydration uye latex powder film anopedzwa mumatanho mana:
①Kana upfu hwelatex hunonyungudika hukasanganiswa zvakaenzana nemvura muupfu hweputty, hunopararira kuita zvidimbu zvidiki zvepolymer;
②Simende gel inoumbwa zvishoma nezvishoma kuburikidza nekunyoroveswa kwekutanga kwesimende, chikamu chemvura chinozadzwa neCa(OH)2 inoumbwa panguva yekunyoroveswa, uye zvidimbu zvepolymer zvinoumbwa neupfu hwelatex zvinoiswa pamusoro pemusanganiswa wesimende gel/isimende isina mvura;
③ Sezvo simende ichiwedzera kunyoroveswa, mvura iri muma capillary pores inoderera, uye polymer particles dzinoiswa zvishoma nezvishoma muma capillary pores, zvichiita kuti pave nechikamu chakanyatsoiswa pamusoro pe simende gel/isina mvura musanganiswa we simende uye filler;
④ Nekushandiswa kwemvura inoyerera, kunyudzwa kwebase layer uye kupwanyika kwemvura pamusoro, hunyoro hunodzikira, uye zvikamu zvakaumbwa zvinounganidzwa kuita firimu rakatetepa, uye zvigadzirwa zvemvura zvinobatanidzwa pamwe chete kuti zvigadzire chimiro chakazara che network. Sisitimu inoumbwa ne hydration yesimende uye kugadzirwa kwefirimu re latex powder inovandudza kuramba kwe putty.
Kubva pakushandiswa kwayo, simba reputty rinoshandiswa sechikamu chekuchinja pakati pechinhu chekunze chinoputira nemadziro ekunze harifanirwe kunge rakakwira kupfuura remota yekupurasita, zvikasadaro zviri nyore kuputsa. Muhurongwa hwese hwekuputira, putty inofanira kunge yakakwira kupfuura yesubstrate. Nenzira iyi, putty inogona kuchinjika zviri nani kuchinjika kwesubstrate uye kugadzirisa kushanduka kwayo pasi pesimba rekunze kwezvinhu zvakatipoteredza, kuderedza kushushikana, uye kuderedza mukana wekutsemuka nekubviswa kwependi.
Nguva yekutumira: Gumiguru-27-2022