Eminyakeni yamuva nje, kuye kwavela inqwaba yempushana yerabha ye-resin, impushana yerabha enamandla kakhulu engamelana namanzi kanye nezinye izimpushana zenjoloba ezishibhile kakhulu ezivele emakethe ukuze zithathe indawo ye-VAE emulsion yendabuko (vinyl acetate-ethylene copolymer), eyomiswa futhi eyomisiwe. eyenziwe ngempushana yerabha egaywa kabusha. I-latex powder ehlakaziwe, ngakho-ke uyini umehluko phakathi kwe-resin powder ne-latex powder ehlakazeka kabusha, ingabe i-resin powder ingangena esikhundleni sempushana ye-latex ehlakazeka kabusha?
Hlaziya kafushane umehluko phakathi kwakho kokubili ukuze uthole ireferensi:
01. Impushana ye-latex ehlakazeka kabusha
Njengamanje, izimpushana ze-latex ezihlakazeka kabusha ezisetshenziswa kabanzi emhlabeni yilezi: i-vinyl acetate ne-ethylene copolymer powder (VAC/E), i-ethylene, i-vinyl chloride ne-vinyl laurate ternary copolymer powder (E/VC/VL), i-acetic acid Vinyl ester, ethylene. kanye ne-fatty acid ephakeme ye-vinyl ester ternary copolymer powder (VAC/E/VeoVa), lezi izimpushana ezintathu ze-latex ezihlakazeka kabusha zibusa imakethe yonke, ikakhulukazi i-vinyl acetate ne-ethylene copolymer powder VAC/EE, ithatha isikhundla esiphambili emkhakheni wembulunga yonke futhi imele izici zobuchwepheshe ze-polymer powder ehlakazeka kabusha. Kuseyisixazululo esingcono kakhulu sezobuchwepheshe ngokuya ngesipiliyoni sobuchwepheshe ngama-polymers asetshenziswa ekuguqulweni kodaka:
1. Ingenye yama-polymer asetshenziswa kakhulu emhlabeni;
2. Isipiliyoni sokufaka isicelo emkhakheni wokwakha sikhulu kakhulu;
3. Ingakwazi ukuhlangabezana nezakhiwo ze-rheological ezidingwa udaka (okungukuthi, ukwakhiwa okudingekayo);
4. I-polymer resin namanye ama-monomers inezici ze-organic volatile matter (VOC) ephansi kanye negesi ephansi ecasulayo;
5. Inezici zokumelana okuhle kakhulu kwe-UV, ukumelana nokushisa okuhle nokuzinza kwesikhathi eside;
6. Ukumelana okuphezulu ne-saponification;
7. Inezinga lokushisa elibanzi kakhulu lengilazi lokushintsha (Tg);
8. Inokuxhumana okuhle kakhulu okubanzi, ukuguquguquka kanye nezakhiwo zemishini;
9. Yiba nesipiliyoni eside kakhulu sokukhiqiza amakhemikhali sendlela yokukhiqiza imikhiqizo yekhwalithi ezinzile kanye nesipiliyoni ekugcineni ukuqina kwesitoreji;
10. Kulula kakhulu ukuhlanganisa ne-colloid evikelayo (i-polyvinyl alcohol) ngokusebenza okuphezulu.
02. Impuphu yenhlaka
Iningi le "resin" yerabha powder emakethe iqukethe into yamakhemikhali i-DBP. Ungahlola ukulimaza kwalesi sakhi samakhemikhali, esithinta umsebenzi wobulili besilisa. Inani elikhulu lalolu hlobo lwempushana yerabha linqwabelene endaweni yokugcina impahla kanye naselabhorethri, futhi linokuguquguquka okuthile. Imakethe yaseBeijing, edume ngokuchichima kwayo “kwempushana yerabha”, manje inamagama ahlukahlukene “empushana yeraba” efakwe kumakhemikhali ancibilikayo: impushana yenjoloba enamandla amakhulu ukumelana namanzi, impushana yerabha ye-resin, njll. Izici ezijwayelekile:
1. Ukuhlakazeka okumpofu, abanye bazizwa bemanzi, abanye bazizwa be-flocculent (kufanele kube into enezimbotshana njenge-sepiolite) kanti abanye bamhlophe futhi bome kancane kodwa basanuka kabi;
2. Inuka kakhulu;
3. Eminye imibala yengeziwe, futhi imibala evelayo njengamanje emhlophe, ephuzi, empunga, emnyama, ebomvu, njll.;
4. Inani lokwengeza lincane kakhulu, futhi inani lokwengezwa kwethani elilodwa liyi-5-12 kg;
5. Amandla okuqala mahle ngokumangalisayo. Usimende awunawo amandla ngezinsuku ezintathu, futhi ibhodi lokufakelwa lingagqwala futhi linamathele;
6. Kuthiwa ibhodi le-XPS aliyidingi i-ejenti yesixhumi esibonakalayo;
Ngokusebenzisa amasampula atholwe kuze kube manje, kungaphetha ngokuthi i-resin esekelwe ku-solvent ekhangiswe ngezinto ezikhanyayo ezingenalutho, kodwa umphakeli ufuna ukugwema ngamabomu igama elithi "solvent", ngakho-ke kuthiwa "i-rubber powder".
ukushiyeka:
1. Ukumelana nesimo sezulu kwesincibilikisi kuyinkinga enkulu. Elangeni, izohwamuka ngesikhathi esifushane. Ngisho noma lingekho elangeni, i-interface yokubopha izobola ngokushesha ngenxa yokwakhiwa komgodla;
2. Ukumelana nokuguga, izincibilikisi azikwazi ukumelana nokushisa, wonke umuntu uyakwazi lokhu;
3. Njengoba indlela yokubopha iwukuhlakaza isikhombimsebenzisi sebhodi lokufakelwa, ngokuphambene nalokho, iphinde ibhubhise isikhombimsebenzisi sokubopha. Uma kunenkinga ngale nkinga esigabeni sakamuva, umthelela uzoba yingozi;
4. Asikho isibonelo sokufakwa kwesicelo emazweni angaphandle. Ngokuhlangenwe nakho kwamakhemikhali ayisisekelo avuthiwe phesheya, akunakwenzeka ukuthi ungatholi le nto.
Impushana ye-latex ehlakazeka kabusha
1. Umkhiqizo wempushana we-latex ohlakazeka kabusha uyimpushana encibilika kabusha encibilika emanzini, eyi-copolymer ye-ethylene ne-vinyl acetate, ene-polyvinyl alcohol njenge-colloid evikelayo.
2. I-VAE redispersible latex powder inezinto zokwenza ifilimu, isixazululo samanzi esingu-50% sakha i-emulsion, futhi sakha ifilimu efana nepulasitiki ngemva kokubekwa engilazini amahora angu-24.
3. Ifilimu eyakhiwe inokuguquguquka okuthile nokumelana namanzi. Ingafinyelela ezingeni likazwelonke.
4. I-latex powder ekwazi ukuphinda iphinde ikwazi ukusebenza kahle kakhulu: inekhono eliphezulu lokubopha, ukusebenza okuyingqayizivele nokusebenza okuvelele okungangeni manzi, amandla okubopha okuhle, inika udaka olunokumelana okuhle kakhulu kwe-alkali, futhi ingathuthukisa ukunamathela namandla okuguquguquka kodaka Ngaphezu kwepulasitiki, ukumelana nokugqoka. kanye nokwakhiwa, inokuguquguquka okunamandla kudaka lokulwa nokuqhekeka.
i-resin powder
1. Impushana yerabha ye-resin iwuhlobo olusha lwesilungisi semikhiqizo efana nenjoloba, inhlaka, i-polymer yamangqamuzana aphezulu, kanye nempushana yerabha egaywe kahle;
2. Impuphu yerabha ye-resin inokuqina okujwayelekile, ukumelana nokugqoka, ukuhlakazeka okungalungile, abanye bazizwa be-flocculent (kufanele kube yizinto ezinama-porous njenge-sepiolite), futhi kukhona izimpushana ezimhlophe (kodwa zibe nephunga elimnandi elifana ne-parafini);
3. Amanye ama-resin powders ayagqwala ebhodini, futhi ukuvimbela amanzi akulungile.
4. Ukumelana nesimo sezulu kanye nokumelana namanzi kwe-resin rubber powder kuphansi kune-latex powder. Ukumelana nesimo sezulu kuyinkinga enkulu. Elangeni, izohwamuka ngesikhathi esifushane. Ngisho noma lingekho elangeni, isikhombimsebenzisi sokubopha sizokwenza Ngenxa yokwakhiwa komgodi, futhi izobola ngokushesha;
5. Impuphu yerabha ye-resin ayinakho ukubumba, ingasaphathwa eyokuguquguquka. Ngokwezindinganiso zokuhlola udaka lwangaphandle lokufakwa odongeni, izinga lomonakalo kuphela webhodi le-polystyrene elihlangabezana nendinganiso. Ezinye izinkomba azikho ezingeni;
6. Impuphu yerabha ye-resin ingasetshenziswa kuphela ukuhlanganisa amabhodi e-polystyrene, hhayi ubuhlalu obuqinisekisiwe namabhodi angashi.
Isikhathi sokuthumela: Jun-02-2023