Njengenxalenye ebalulekileyo yezixhobo zokwakha zanamhlanje, iipowder zepolymer eziphinda zichithwe (RDP) zidlala indima ebalulekileyo kwizicelo ezininzi ezifana neemortars, putties, grouts, tile adhesives kunye neenkqubo zokushisa. Amandla okwenza ifilimu e-RDP luphawu olubalulekileyo oluchaphazela umgangatho wemveliso yokugqibela. Ukukwazi ukuphinda kuchithwe iipowders emva kokugcinwa, ukuthuthwa kunye nokuxuba kubalulekile. Yingakho iindlela zovavanyo ezineenkcukacha nezingqongqo zibalulekile ukuqinisekisa ukufaneleka nokusebenza kakuhle kweemveliso ze-RDP.
Olunye lovavanyo olubaluleke kakhulu lwekhono lokwenza ifilimu ye-RDP yindlela yokuvavanya ifilimu yokwenza ifilimu ye-emulsion powder ephinda inyibilike. Le ndlela yokuvavanya isetyenziswa kakhulu kuvavanyo lomgangatho wemveliso kunye nenkqubo ye-R&D yeemveliso ze-RDP. Indlela yokuvavanya ifilimu ye-powder ephinda inyibilike ye-polymer powder yindlela yokuvavanya elula nelula, enokuvavanya ngempumelelo ikhono lokwenza ifilimu yeemveliso ze-RDP.
Okokuqala, kufuneka kuhlolwe ukuba umgubo uyaphinda uchitheke na ngaphambi kokuba kwenziwe uvavanyo lokwenziwa kwefilimu. Ukuxuba umgubo namanzi kunye nokuxuba ukuze uphinde uchithe amasuntswana epolymer kuqinisekisa ukuba umgubo usebenza ngokwaneleyo kuvavanyo.
Okulandelayo, indlela yovavanyo lwePowder Redispersible Polymer Powder Film Formation ingaqaliswa. Ubushushu obumiselweyo kunye nomswakama ohambelanayo kuyafuneka ukugcina imeko-bume ezinzileyo ukuze ifilimu iphile kakuhle. Izinto ezisetyenzisiweyo zitshizwa kwi-substrate kubukhulu obuchazwe kwangaphambili. Izinto ezisetyenzisiweyo ziya kuxhomekeka kwiimfuno zokusetyenziswa. Umzekelo, ukufakwa kwesamente kunokufuna i-substrate yekhonkrithi. Emva kokutshiza, izinto ezisetyenzisiweyo ziyavunyelwa ukuba zome ixesha elithile, emva koko amandla okwenza ifilimu anokuvavanywa.
Indlela yoVavanyo lweFilimu yoMqulu wePowder Redispersible Emulsion ivavanya izinto ezininzi. Ezi ziquka ukugqitywa komphezulu, ukunamathela kunye nokuguquguquka kwefilimu. Ukugqitywa komphezulu kunokuvavanywa ngokujonga okanye kusetyenziswa imakroskopu. Ukunamathela kwefilimu kwi-substrate kumiselwe kusetyenziswa uvavanyo lweteyipu. Ukunamathela okwaneleyo kuboniswa xa umcu weteyipu ufakwa kwisixhobo kwaye ifilimu ihlala inamathele kwi-substrate emva kokuba iteyipu isusiwe. Ukuguquguquka kwefilimu kunokuvavanywa kusetyenziswa uvavanyo lweteyipu. Yolula ifilimu ngaphambi kokususa iteyipu, ukuba ihlala inamathele kwi-substrate, ibonisa inqanaba elifanelekileyo lokuguquguquka.
Kubalulekile ukulandela iinkqubo zovavanyo ezifanelekileyo ukuqinisekisa iziphumo ezihambelanayo. Iinkalo ezininzi zovavanyo lokwenziwa kwefilimu kufuneka zilinganiswe ukuze kupheliswe umahluko phakathi kweebhetshi zovavanyo ezahlukeneyo. Ezi ziquka iinkqubo zokulungiselela, ubushushu, ukufuma, ubukhulu bokusetyenziswa kunye nexesha lokunyanga. Uvavanyo lweteyiphu nalo kufuneka lwenziwe ngoxinzelelo olufanayo ukuze kufunyanwe iziphumo ezifanayo. Ukongeza, izixhobo zovavanyo kufuneka zilinganiswe ngaphambi kovavanyo. Oku kuqinisekisa ukulinganisa okuchanekileyo nokuchanekileyo.
Okokugqibela, ukutolikwa ngokuchanekileyo kweziphumo zePowder Redispersible Emulsion Powder Film Formation Method kubaluleke kakhulu. Iziphumo ezifunyenwe yindlela yovavanyo lokwenziwa kwefilimu kufuneka zithelekiswe nemigangatho emiselweyo yokusetyenziswa kwento ethile. Ukuba ifilimu iyahlangabezana neemfuno kunye nemigaqo, umgangatho wayo uthathwa njengowamkelekileyo. Ukuba akunjalo, imveliso ingadinga ukucocwa okanye ukuguqulwa okongezelelweyo ukuphucula iimpawu zayo zokwenza ifilimu. Iziphumo zovavanyo zinokunceda ekusombululeni iingxaki kunye nokuchonga naziphi na iingxaki zemveliso okanye iziphene zemveliso.
Ngamafutshane, indlela yokuvavanya ukwakheka kwefilimu yepowder yepolymer esasazekayo idlala indima ebalulekileyo ekumiseleni ukusebenza kakuhle kwemveliso yepowder yepolymer esasazekayo. Njengenye yezinto ezibalulekileyo zezixhobo zokwakha zanamhlanje, amandla okwenza ifilimu e-RDP abalulekile ekusebenzeni kwayo. Ukuqinisekisa ukuba amandla okwenza ifilimu e-RDP ahlangabezana neempawu ezifunekayo kubalulekile ekuphuculeni ukusebenza kunye nobomi bemveliso yokugqibela. Ukunamathela ngokufanelekileyo kwiinkqubo zovavanyo kubalulekile ekufumaneni iziphumo ezihambelanayo. Ukutolikwa ngokufanelekileyo kweziphumo zovavanyo kunokubonelela ngengqiqo ebalulekileyo malunga nokwakhiwa kunye nokuveliswa kweemveliso ze-RDP ezikumgangatho ophezulu.
Ixesha lokuthumela: Julayi-03-2023