Ukongeza iipolymers kunokuphucula ukunganyanzeki, ukuqina, ukumelana nokuqhekeka kunye nokuchasana kwempembelelo yodaka kunye nekhonkrithi. Ukunyanzeliswa kunye neminye imiba inesiphumo esihle. Xa kuthelekiswa nokuphucula amandla e-flexural kunye namandla okudibanisa udaka kunye nokunciphisa ukunyanzeliswa kwayo, umphumo we-latex powder owenziwe ngokutsha ekuphuculeni ukugcinwa kwamanzi omdaka kunye nokuphucula ukudibanisa kwayo kulinganiselwe.
Umgubo wepolymer odispersible ngokuqhelekileyo usetyenzwa ngokutshiza ngokumisa ngokusebenzisa ezinye ii-emulsions ezikhoyo. Inkqubo kukuqala ukufumana i-polymer emulsion nge-emulsion polymerization, kwaye emva koko uyifumane ngokumisa isitshizi. Ukuthintela ukudityaniswa komgubo welatex kunye nokuphucula ukusebenza phambi kokutshiza, ezinye izongezo zihlala zongezwa, ezinje nge-bactericides, izongezo zokutshiza, iiplasticizers, defoamers, njl., ngexesha lenkqubo yokutshiza, okanye emva nje kokumisa. I-arhente yokukhulula yongezwa ukukhusela i-clumping ye powder ngexesha lokugcina.
Ngokunyuka komxholo we-latex powder ephindayo, yonke inkqubo iphuhlisa kwiplastiki. Kwimeko yomxholo ophezulu we-latex powder, isigaba se-polymer kwi-mortar ephilisiweyo ngokuthe ngcembe idlula imveliso ye-inorganic hydration, udaka luhamba utshintsho olusemgangathweni kwaye lube ngumzimba o-elastic, kwaye imveliso ye-hydration ye-samente iba "i-filler". . Ifilimu eyenziwe ngumgubo owenziwe ngokutsha we-latex osasazwa kwi-interface idlala enye indima ephambili, oko kukuthi, ukunyusa ukunamathela kwizinto eziqhagamshelwe, ezifanelekileyo kwiindawo ezinzima zokunamathela, ezifana nokufunxa amanzi aphantsi kakhulu okanye iindawo ezingenakufunxa (ezifana nekhonkrithi egudileyo kunye neendawo eziphathekayo zesamente, iipleyiti zentsimbi, umgangatho wezinto eziphilayo, izitena ze-homotified, njl. (ezifana neebhodi ze-EPS, iiplastiki, njl. njl.) zibaluleke kakhulu. Ngenxa yokuba i-adhesives inorganic adhesives kwi-inorganic adhesives iphunyezwa ngomgaqo wokufakela oomatshini, oko kukuthi, i-hydraulic slurry ingena kwizikhewu zezinye izinto, ngokuthe ngcembe iqina, kwaye ekugqibeleni incamathele udaka kuyo njengesitshixo esifakwe kwisitshixo. Umphezulu wezinto eziphathekayo, kulo mhlaba ungentla onzima-uku-bond, awukwazi ukungena ngokufanelekileyo ngaphakathi kwendawo yokwenza i-mechanical embedding, ukwenzela ukuba udaka olunama-adhesives angabonakaliyo alubopheli ngokufanelekileyo kuyo, kwaye indlela yokudibanisa i-polymer iyahluka. , I-polymer iboshwe kumphezulu wezinye izinto nge-intermolecular force, kwaye ayixhomeki kwi-porosity ye-surface (ngokuqinisekileyo, indawo enqabileyo kunye nokunyuka koqhagamshelwano kuya kuphucula ukubambelela).
Ixesha lokuposa: Mar-07-2023