I-latex powder ehlaziywayo njengesongezo esibalulekileyo sodaka oluxutywe ngodaka

Redispersible latex powder yi powder dispersion eyenziwe nge-modified polymer emulsion ngokumisa isitshizi. Inobuchwephesha obugqwesileyo kwaye inokuphinda ifakwe kwi-emulsion yepolymer ezinzile emva kokukhululwa kwamanzi. I-organic chemistry ifana ncakasana nelotion yokuqala yokuthambisa. Ngoko ke, kunokwenzeka ukwenza udaka oluphezulu lwepowder eyomileyo, ngaloo ndlela kuphuculwe ukusebenza kodaka lwesamente.

I-latex powder ephinda iphinde idibaniswe yinto ebalulekileyo eyongezelelweyo esebenzayo yodaka. Inokuphucula ukusebenza kodaka, yandise amandla acinezelayo odaka lwesamente, iphucule amandla okubopha udaka lwesamente kunye neebhodi ezahlukeneyo, kunye nokuphucula amandla odaka lwesamente. Ukuthamba kunye nokukhubazeka, ukomelela kokuqina, amandla acinezelayo, ukunganyangeki kwe-abrasion, i-ductility, umdyarho wokuncamathela kunye nokukwazi ukuvala amanzi, kunye nokwakheka. Ukongeza, i-latex powder yendalo enokugxothwa kwamanzi inokwenza udaka lwesamente lube nokuxhathisa okuhle kokufuma.

Ukuphucula ukudityaniswa kodaka lwesamente kulwakhiwo lobunjineli. Emva kokuba udaka lwesamente esandula ukuxutywa kunye nolwelo lwe-latex lokusasazwa komgubo lwendalo lwenziwe, umxholo wamanzi uya kuhla kancinci ngokucolwa kunye nokufunxwa kwamanzi ngesiseko, ukusetyenziswa kokusabela kokuqina, kunye nokunyuka komphunga emoyeni. , amasuntswana asondela ngokuthe ngcembe, amaphepha ngokuthe ngcembe abhanga, kwaye ngokuthe ngcembe adityaniswa enye kwenye. Ekugqibeleni, i-polymer yenziwe i-demulsified. Yonke inkqubo ye-polymer demulsification yahlulwe yaba ngamakhonkco amathathu. Kwi-emulsion yokuqala yokuthambisa, iinqununu ze-polymer zikwimo ye-Brownian motion. Hambisa ngokukhululekileyo, kunye nokuguquguquka kwamanzi, ukuhamba kwamasuntswana ngokwendalo kuxhomekeke kwizithintelo ezingaphezulu nangaphezulu, uxinzelelo lwamanzi kunye negesi lubakhuthaza ukuba bahlele kunye ngokucothayo, inqanaba lesibini, xa amasuntswana eqala ukubambana, uthungelwano Amanzi aMilo aguquguqukayo ngokusebenzisa iicapillaries, kwaye amandla axhasayo aphezulu akhululwe kumphezulu wamasuntswana abangela uguqulo lwendalo lwe-latex spheres ukubenza badibane kunye, kwaye amanzi aseleyo azalise i-pores, kwaye inwebu mhlawumbi yenziwe. . Isinyathelo sesithathu Isinyathelo sokugqibela kukwenza ukusasazwa kweemolekyuli zepolymer (ngamanye amaxesha kuthiwa yi-self-adhesiveness) yenza ifilimu eqhubekayo yangempela ngexesha lenkqubo ye-demulsification.