Okuqukethwe komlotha okuvela efektri ejwayelekile kuvamile 10 ± 2 2
I-Ash Precotion Standard ingaphakathi kwe-12%, futhi ikhwalithi nentengo kuqhathaniswa
Amanye ama-powerx asezingeni eliphakeme angaphezu kwama-30%, futhi ngisho namanye amapopiji enjoloba anama-50% umlotha.
Manje ikhwalithi nentengo ye-polymer powder ehlakazekile emakethe ayilingani, zama ukukhetha
Okuqukethwe okuphansi komlotha, ukusebenza kwezindleko eziphakeme kanye nekhwalithi eqinile yokuhlinzekwa.
Ungayikhetha kanjani i-latex powder evuselelayo ye-latex, ngokuvamile akunakwenzeka ukuqala lapho wenza ifomula,
Ayikho enye indlela ephumelelayo ngaphandle kokuyifaka emkhiqizweni wokuhlola.
Ukukhethwa kwe-powder ye-polymer efanelekile kufanele kubhekwe kusuka ezintweni ezilandelayo:
1. Ukushisa kwengilazi okushisa kwe-polymer powder ehlakazekile.
Amazinga okushisa okuguqulwa kwengilazi yi-polymer ekhombisa ukuqina; Ngezansi kwalolu lokushisa, i-polymer ibonisa ubucwebe.
Ngokuvamile, izinga lokushisa lengilazi lokushisa le-latex powder yi -15 ± 5 ℃.
Ngokuyisisekelo akunankinga.
Izinga lokushisa le-Glass Transition liyinkomba enkulu yezakhiwo ezibonakalayo zamapoti ahlukile we-polymer, kanye nemikhiqizo ethile,
Ukukhetha okufanele kokushisa kwengilazi okushisa kwe-polymer powder evuselelayo kuyasiza ekuthuthukiseni ukuguquguquka komkhiqizo nokugwema
Ukuqhekeka, njll.
2. Ubuncane befilimu yokushisa
Ngemuva kwempuphu ye-polymer evuselelayo futhi evuselelwa kabusha ixutshwe namanzi futhi ihlanganiswe kabusha, inezakhiwo ezifanayo kwi-emulsion yasekuqaleni.
Lokho wukuthi, ngemuva kokuphuma kwamanzi, kuzokwakheka ifilimu, elinokuguquguquka okuphezulu nokunamathela okuhle kuma-substrate ahlukahlukene.
Ukushisa okuncane kwefilimu okungama-Film.
Inkomba yabakhiqizi abathile yi-5 ℃, inqobo nje uma i-latex powder enekhwalithi enhle inokushisa okwakha amafilimu phakathi kuka-0 no-5 ℃.
3. Izakhiwo ezivuselelekayo.
Ama-polymer powders aphansi e-polymer ahlukaniswa ngokwengxenye noma ayinakuncishiswa kalula emanzini abandayo noma amanzi e-alkali.
4. Intengo.
Okuqukethwe okuqinile kwe-emulsion kucishe kube ngu-53%, okusho ukuthi cishe amathani ayi-1,9 e-emulsion aqiniswe kuthani elilodwa le-rubber powder.
Uma ubala okungu-2% kokuqukethwe kwamanzi, okungu-1.7 amathani we-emulsion ukwenza ithoni elilodwa le-ruble powder, kanye ne-10% yomlotha,
Kuthatha cishe amathani ayi-1.5 we-emulsion ukukhiqiza ithani elilodwa le-pumane lenjoloba. I-5. Isixazululo esinamanzi se-latex powder
Ukuze uvivinye i-viscosity ye-latex evuselelayo ye-latex powder, amanye amakhasimende avele ancibilikisa i-latex powder kuyo
Ngemuva kokuvusa amanzi emanzini, ngakuvivinya ngesandla, ngathola ukuthi ayinamatheli, ngakho-ke ngacabanga ukuthi kwakungeyona i-powder yangempela ye-latex.
Eqinisweni, i-redisperible totex powder ngokwayo ayinanaka, yakhiwa ngomishini wokufafaza we-polymer emulsion
kwe-powder.
Lapho i-polymer evuselelekayo ye-polymer ixutshwe namanzi futhi ihlanganiswe kabusha, inezakhiwo ezifanayo ne-emulsion yasekuqaleni, okungukuthi, umswakama
Amafilimu akha ngemuva kokuhwamuka avumelana nezimo kakhulu futhi anamathele kahle kakhulu kuma-substrates ahlukahlukene.
Kungabuye kuthuthukise ukugcinwa kwamanzi kokuqukethwe nokuvimbela udaka ngodaka kusuka ekuqiniseni, ukomisa nokuqhekeka ngokushesha okukhulu;
Khulisa ubukhulu bodaka futhi uthuthukise ukukhiqizwa kokwakha. Uma ukuhlolwa kufanele kwenziwe, kumele kulizwe
Yenza udaka lokuvuselela ukubona ukusabalalisa kwalo, ukwakheka kwamafilimu, ukuvumelana nezimo (kufaka phakathi ukuhlolwa kokukhipha,
Ukuthi amandla okuqala afanelekile) Ngokuvamile, imiphumela yokuhlola ingatholwa ngemuva kwezinsuku eziyi-10
Isikhathi sePosi: Feb-20-2025