n imvelo yangempela yemakethe, izinhlobo ezahlukene zezimpushana ze-latex zingachazwa njengezicwebezelayo. Ngenxa yalokho, uma umsebenzisi engenabo ochwepheshe bakhe abangochwepheshe noma izinto zokuhlola, angakhohliswa kuphela abathengisi abaningi abangenanembeza emakethe. Njengamanje, kukhona okubizwa ngokuthi izindlela zokubona ezizungeza ku-inthanethi, njengokuthi: ukubuka ukonakala kwesixazululo esincibilikisiwe kanye nesimo sokwenza ifilimu. Lezi zindlela ziwukubona kuphela okuvela phezulu, futhi azikwazi ukunikeza ukusekelwa kwendlela yesayensi ekunqumeni kokugcina komsebenzisi kokuthi umkhiqizo umfanele yini. Ngakho-ke, kulesi sihloko, sizokwazisa ngokuhlelekile eminye imiqondo eyisisekelo ye-rubber powder mahhala ezicini zokubunjwa kwezinto ezibonakalayo eziyisisekelo, izici, kanye nenjongo yokusetshenziswa kwempuphu yenjoloba, ukuze ozakwabo bakwazi ukwahlulela ngokwabo ukuthi yini enhle nokuthi yini enhle. enesici.
Okokuqala, umqondo oyisisekelo wokuqonda ukuthi i-polymer powder yeqiniso ehlakazekayo ikhiqizwa kanjani. (I-Redispersible latex powder iyimpushana ye-polymer enezici eziphinde zihlakazeke kabusha eguqulwa kusukela ku-synthetic resin emulsion ngokungeza ezinye izinto futhi isifutho-somisiwe. Uma amanzi esetshenziswa njengendlela yokusabalalisa, angenza i-emulsion futhi ibe ne-polymer powder ephindwe kabusha. I-Redispersible I-latex powder ngokuvamile iyimpushana emhlophe, kodwa i-polymer redisin embalwa kufanele ibe neminye imibala: izithasiselo, i-colloid evikelayo, i-anti-caking agent. 1. I-polymer resin itholakala engxenyeni eyinhloko yezinhlayiya ze-latex powder, futhi iphinde ibe yingxenye eyinhloko ye-latex powder ephindwe kabusha, njenge-polyvinyl acetate / vinyl resin, njll. Ukuze kuqinisekiswe ukuzinza kwekhwalithi yomkhiqizo, izimboni ezinkulu ezivamile ngokuvamile zisebenzisa uhlobo lwe-polyvinyl acetate ukukhiqiza impushana ye-polymer ehlakazeka kabusha. Lapha singathatha isibonelo esiwusizo. Ngo-2015, uhlobo lwasekhaya olwaziwayo lwe-powder yerabha yasekhaya lwashintsha i-emulsion eshibhile ye-polyvinyl acetate ukuze kukhiqizwe impushana ye-polymer ehlakazeka kabusha ngenxa yezizathu zokuphatha. Ngenxa yalokho, kwaba nokuguquguquka okukhulu kwekhwalithi. kubangele umonakalo ongalungiseki. Ngisho nabanye abathengisi abangathembekile lapha bazosebenzisa i-latex emhlophe nokunye okunjalo esikhundleni sokususa uthuli.
2. Izithasiselo (zangaphakathi) zisebenza kanye ne-resin ukuze ziguqule i-resin, isibonelo, i-plasticizer enciphisa izinga lokushisa lefilimu elenza ifilimu ye-resin (ngokuvamile i-vinyl acetate / ethylene copolymer resins ayidingi ukwengeza ama-plasticizers), hhayi yonke i-latex Powder enezithasiselo. I-latex powder ehlakazeka kabusha yabakhiqizi abaningi abancane inenkomba yokushisa eyenza ifilimu futhi ayikwazi ukubizwa ngokuthi izinga lokushisa lokuguqulwa kwengilazi, okuyipharamitha ebalulekile yekhwalithi ye-rubber powder ngokwayo.
3. I-protective colloid Ungqimba lwe-hydrophilic material esongwe phezu kwezinhlayiya zempushana ze-latex ezihlakazeka kabusha, futhi umzimba ovikelayo wezimpushana eziningi ze-latex ezihlakazeka kabusha yi-polyvinyl alcohol. Utshwala be-polyvinyl lapha ukubamba iqhaza enqubweni yokumisa isifutho ndawonye, kunokuvele kuxutshwe. Nansi enye inkinga evamile emakethe. Ama-workshops amaningi amancane athi akhiqiza impushana yerabha avele enze inqubo yokuhlanganisa ngokomzimba. inqubo, lo mkhiqizo awukwazi ukubizwa ngokuqinile ngokuthi i-polymer powder ehlakazekayo.
4. Izithako (zangaphandle) Izinto ezingezwe ukuze kuthuthukiswe ukusebenza kwezimpushana ze-latex ezihlakazeka kabusha, njengokwengeza ama-superplasticizers kwezinye izimpushana ze-latex ezinamanzi. Njengezithako zangaphakathi, akuzona zonke izinhlobo ze-polymer powder ezihlakazeka kabusha ezisetshenziswayo. Izimpushana ze-latex zonke ziqukethe lesi sengezo.
5. I-Anti-Caking I-Fine mineral filler, ikakhulukazi esetshenziselwa ukuvimbela i-latex powder ekuhlanganiseni ngesikhathi sokugcinwa nokuthutha kanye nokwenza lula ukugeleza kwempushana ye-latex (elahlwa ezikhwameni zamaphepha noma emathangini). Lesi sigcwalisi siyingxenye ezothinta kakhulu izindleko zangempela zokukhiqiza nokusebenza kwempushana ye-polymer ehlakazekayo. Izimpushana eziningi zerabha ezinenani eliphansi emakethe zinyusa isilinganiso sokugcwalisa ukuze kuncishiswe izindleko. Kalula nje, iyinkomba yokuqukethwe komlotha okuvame ukubhekiselwa kuyo. Ama-filler ahlukene angezwe abakhiqizi abahlukene azophinde athinte umphumela wokuxuba we-rubber powder nosimende. Ngoba ukuhlangana kwezinamatheliso ezingaphili ezintweni ezisetshenziswayo kufinyelelwa ngomgomo wokushumeka ngomshini
Isikhathi sokuthumela: Apr-26-2024