Inkqubo yokwenziwa komboniso bhanyabhanya weRDP kudaka lwesamente

Inkqubo yokwenziwa kwefilimu ye-Redispersible Polymer Powder (RDP) kwi-samente yodaka ibandakanya izigaba ezininzi ezifaka isandla ekuphuhliseni ifilimu yepolymer edibeneyo kunye neyomelele. Nantsi isishwankathelo senkqubo yokwenziwa kwefilimu:

1. Ukusabalalisa: Ekuqaleni, iinqununu ze-RDP zihlakazwa ngokufanayo kwisigaba samanzi somxube we-cement mortar. Oku kusasazwa kwenzeka ngexesha lokuxuba, apho amasuntswana e-RDP angeniswa kumxube wodaka kunye nezinye izithako ezomileyo.
2. Ukufakwa kwamanzi: Ekudibaneni namanzi, amasuntswana e-hydrophobic polymer kwi-RDP aqala ukudumba kwaye afunxe ukufuma. Le nkqubo, eyaziwa ngokuba yi-hydration, ibangela ukuba amasuntswana e-polymer athambe kwaye abe lula.
3. Ukwenziwa kweFilimu: Njengoko umxube wodaka usetyenziswa kwaye uqala ukunyanga, amasuntswana e-hydrated RDP adibanisa kwaye adibanise ukwenza ifilimu yepolymer eqhubekayo. Le filimu ibambelela kumphezulu we-matrix yodaka kwaye ibophe amaqhekeza ngamanye.
4. I-Coalescence: Ngexesha lenkqubo yokunyanga, iinqununu ezikufutshane ze-RDP zidibana kwaye zidibanise, apho zidibanisa kwaye zenze iibhondi ze-intermolecular. Le nkqubo yokudibanisa igalelo ekwenziweni kwenethiwekhi yepolymer edibeneyo kunye neqhubekayo ngaphakathi kwe-matrix yodaka.
5. I-Crosslinking: Njengoko udaka lwesamente luphilisa kwaye luqina, ukuphambana kweekhemikhali kunokwenzeka phakathi kwamakhonkco e-polymer kwifilimu ye-RDP. Le nkqubo yokudibanisa iqinisa ngakumbi ifilimu kwaye ikhulise ukunamathela kwayo kwi-substrate kunye nezinye izinto zodaka.
6. Ukomisa nokuManyaniswa: Udaka lwesamente luyomiswa kwaye ludityaniswe njengoko amanzi ephuma abe ngumphunga kumxube kwaye izibophelelo zesamente ziyanyangeka. Le nkqubo inceda ukuqinisa ifilimu ye-RDP kwaye idibanise kwi-matrix yodaka olunzima.
7. Ukuqulunqwa kwefilimu yokugqibela: Ekugqityweni kwenkqubo yokunyanga, ifilimu ye-RDP iphuhlisa ngokupheleleyo kwaye ibe yinxalenye ebalulekileyo yesakhiwo sodaka lwesamente. Ifilimu ibonelela ngokubambisana okongeziweyo, ukuguquguquka, kunye nokuqina kumdaka, ukuphucula ukusebenza kwayo ngokubanzi kunye nokuchasana nokuqhekeka, ukuguqulwa, kunye nolunye uxinzelelo lomatshini.

inkqubo yokwenza ifilimu ye-RDP kwi-cement mortar ibandakanya i-hydration, i-coalescence, i-crosslinking, kunye nezigaba zokudibanisa, ezidibeneyo ekuphuhliseni ifilimu ye-polymer edibeneyo kunye neyomelele ngaphakathi kwe-matrix yodaka. Le filimu iphakamisa ukunamathela, ukuguquguquka, kunye nokuqina kodaka, ukuphucula ukusebenza kwayo kwizicelo ezahlukeneyo zokwakha.