Njengenxalenye ebalulekileyo yezixhobo zokwakha zanamhlanje, i-polymer powders (RDP) ephinda iphindwe kabini idlala indima ebalulekileyo kwizicelo ezininzi ezifana nodaka, i-putty, i-grouts, i-tile adhesives kunye ne-thermal insulation systems.Ikhono lokwenza ifilimu ye-RDP luphawu olubalulekileyo oluchaphazela umgangatho wemveliso yokugqibela.I-dispersibility ye powders emva kokugcinwa, ukuthuthwa kunye nokuxuba kubalulekile.Yiyo loo nto iindlela zovavanyo ezineenkcukacha nezingqongqo zibalulekile ukuqinisekisa ukufaneleka kunye nokusebenza kakuhle kweemveliso zeRDP.
Olunye lolona vavanyo lubalulekileyo lwesakhono sokwenza ifilimu ye-RDP yipowder redispersible emulsion powder film-forming test method.Le ndlela yovavanyo isetyenziswa ngokubanzi kuvavanyo lomgangatho wemveliso kunye nenkqubo ye-R&D yeemveliso zeRDP.Indlela yokuvavanya ifilimu ye-powder redispersible polymer powder yindlela elula kwaye elula yokuvavanya, enokuvavanya ngokufanelekileyo ifilimu yokwenza ifilimu yeemveliso ze-RDP.
Okokuqala, i-dispersibility yomgubo kufuneka ihlolwe ngaphambi kovavanyo lokubunjwa kwefilimu.Ukuxuba umgubo ngamanzi kunye nokuvuselela ukuphinda usasaze iinqununu zepolymer kuqinisekisa ukuba i powder isebenza ngokwaneleyo kuvavanyo.
Emva koko, iPowder Redispersible Polymer Powder Film Formation Method ingaqalwa.Iqondo lokushisa elibekiweyo kunye nokufuma okuhambelanayo kuyafuneka ukuze kugcinwe indawo ezinzileyo ukuze ifilimu iphile kakuhle.Izinto eziphathekayo zifafazwe kwi-substrate kwi-thickness echazwe kwangaphambili.I-substrate imathiriyeli iya kuxhomekeka kwiimfuno zesicelo.Ngokomzekelo, isicelo sodaka sinokufuna i-substrate yekhonkrithi.Emva kokutshiza, izinto eziphathekayo zivunyelwe ukuba zome ixesha elithile, emva koko ubuchule bokwenza ifilimu bunokuhlolwa.
I-Powder Redispersible Emulsion Powder Film Formation Test Method ivavanya izinto ezininzi.Ezi ziquka ukugqitywa komphezulu, ukunamathela kunye nokuguquguquka kwefilimu.Ukugqitywa komphezulu kunokuvavanywa ngokujonga ngokujonga okanye ngokusebenzisa i-microscope.Ukunamathela kwefilimu kwi-substrate kunqunywe ngokusebenzisa uvavanyo lwe-tape.Ukubambelela okwaneleyo kuboniswa xa i-strip of tape isetyenziswe kwizinto eziphathekayo kwaye ifilimu ihlala ibambelele kwi-substrate emva kokuba i-tape isusiwe.Ukuguquguquka kwefilimu kunokuvavanywa kusetyenziswa uvavanyo lweteyiphu.Yolula ifilimu ngaphambi kokususa i-tape, ukuba ihlala ibambelele kwi-substrate, ibonisa izinga elifanelekileyo lokuguquguquka.
Kubalulekile ukulandela iinkqubo zovavanyo ezifanelekileyo ukuqinisekisa iziphumo ezingaguqukiyo.Imiba emininzi yovavanyo lokwenziwa kwefilimu kufuneka ibekwe emgangathweni ukuphelisa umahluko phakathi kweebhetshi zovavanyo ezahlukeneyo.Ezi ziquka iinkqubo zokulungiselela, ubushushu, ukufuma, ubukhulu besicelo kunye nexesha lokunyanga.Uvavanyo lweteyiphu kufuneka lwenziwe ngoxinzelelo olufanayo ukuze ufumane iziphumo ezithelekisekayo.Ukongeza, izixhobo zovavanyo kufuneka zilinganiswe phambi kovavanyo.Oku kuqinisekisa imilinganiselo echanekileyo nechanekileyo.
Ekugqibeleni, ukuchazwa ngokuchanekileyo kweziphumo zePowder Redispersible Emulsion Powder Film Formation Test Method kubaluleke kakhulu.Iziphumo ezifunyenwe ngendlela yovavanyo lokwenziwa kwefilimu kufuneka zithelekiswe nemigangatho esekiweyo yokusetyenziswa kwezinto ezithile.Ukuba ifilimu ihlangabezana neemfuno kunye neenkcukacha, umgangatho wayo uthathwa njengowamkelekileyo.Ukuba akunjalo, imveliso inokufuna ukulungiswa okongeziweyo okanye ukulungiswa ukuze kuphuculwe iimpawu zayo zokwenza ifilimu.Iziphumo zovavanyo zisenokunceda ekuxazululeni iingxaki nasekuchongeni nayiphi na imiba yemveliso okanye iziphene zemveliso.
Isishwankathelo, indlela yokuvavanya ifilimu yokwenziwa kwepolymer yomgubo idlala indima ebalulekileyo ekumiseleni ukusebenza kwemveliso yomgubo wepolymer.Njengelinye lamacandelo abalulekileyo ezinto zokwakha zale mihla, isakhono sokwenza ifilim seRDP sibalulekile ekusebenzeni kwayo.Ukuqinisekisa ukuba isakhono sokwenza umboniso bhanyabhanya weRDP siyahlangabezana neempawu ezinqwenelekayo kubalulekile ekwandiseni ukusebenza kunye nobomi bemveliso yokugqibela.Ukubambelela ngokufanelekileyo kwiinkqubo zovavanyo kubalulekile ekufumaneni iziphumo ezifanayo.Ukutolikwa ngendlela eyiyo kweziphumo zovavanyo nako kunokubonelela ngezimvo ezixabisekileyo ekuqulunqweni nasekuvelisweni kweemveliso zeRDP ezikumgangatho ophezulu.
Ixesha lokuposa: Jul-03-2023