Eminyakeni yamuva, impushana yenjoloba eningi ye-resin, amandla aphezulu amelana namanzii-polymer powder ehlakazeka kabushakanye nenye impushana yerabha eshibhile kakhulu iye yavela emakethe ukuze ithathele indawo ye-emulsion yendabuko ye-VAE (vinyl acetate-ethylene copolymer), eyomiswa ngesifutho futhi igaywe kabusha. Impushana ye-latex ehlakazekayo, khona-ke uyini umehluko phakathi kwempushana yerabha ye-resin ne-latex powder ehlakazeka kabusha, ingabe i-resin powder powder ingangena esikhundleni sempushana ye-latex ehlakazeka kabusha?
1. I-RDP ye-polymer powder ehlakazeka kabusha
Njengamanje, izimpushana ze-polymer ezihlakazekayo ezisetshenziswa kabanzi emhlabeni yilezi: i-vinyl acetate ne-ethylene copolymer rubber powder (VAC/E), i-ethylene ne-vinyl chloride ne-vinyl laurate terpolymer rubber powder (E/VC/VL), i-acetic acid Vinyl ester kanye I-ethylene kanye ne-vinyl ester terpolymer rubber powder (VAC/E/VeoVa), lezi zimpushana ezintathu ezihlakazekayo zibusa imakethe yonke, ikakhulukazi i-vinyl acetate ne-ethylene copolymer rubber powder i-VAC/E/VeoVa E, inesikhundla esiphambili emhlabeni jikelele. insimu futhi imele izici zobuchwepheshe zezimpushana ze-polymer ezihlakazekayo. Kuseyisixazululo esingcono kakhulu sezobuchwepheshe ngokuya ngesipiliyoni sobuchwepheshe ngama-polymers asetshenziswa ekuguqulweni kodaka:
1. Ingenye yama-polymer asetshenziswa kakhulu emhlabeni;
2. Yiba nolwazi oluningi lokufaka isicelo emkhakheni wokwakha;
3. Ingakwazi ukuhlangabezana nezimpawu ze-rheological ezidingwa udaka (okungukuthi ukusebenza okudingekayo);
4. I-polymer resin namanye ama-monomers inezici ze-organic volatile compounds (VOC) kanye namagesi aphansi acasulayo;
5. Inezici zokumelana okuhle kakhulu kwe-UV, ukumelana nokushisa okuhle nokuzinza kwesikhathi eside;
6. Inokumelana okuphezulu kwe-saponification;
7. Inebanga lokushisa lengilazi elibanzi kakhulu (Tg);
8. Inokuhlanganiswa okuhle okubanzi, ukuguquguquka kanye nezakhiwo zemishini;
9. Yiba nolwazi olude kakhulu ekukhiqizeni amakhemikhali mayelana nendlela yokukhiqiza imikhiqizo yekhwalithi ezinzile kanye nesipiliyoni ekugcineni ukuqina kwesitoreji;
10. Kulula ukuhlanganisa ne-colloid evikelayo (i-polyvinyl alcohol) ngokusebenza okuphezulu.
2. I-resin powder
Iningi lezimpushana zenjoloba “zenhlaka” emakethe ziqukethe ikhemikhali i-DBP. Ungahlola ukulimaza kwalesi sakhi samakhemikhali, esithinta umsebenzi wobulili besilisa. Inombolo enkulu yalezi zimpushana zenjoloba zinqwabelaniswa ezindaweni zokugcina izimpahla nasemalabhorethri, futhi ziyaguquguquka ngokwezinga elithile. Imakethe yaseBeijing, edume ngokukhiqiza kwayo “impuphu yerabha”, manje isivele uhlobo “lwempushana yerabha” efakwe kumakhemikhali ancibilikayo anamagama ahlukahlukene: impushana enamathelayo enamandla amakhulu engangeni emanzini, i-resin adhesive powder, 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 zisanuka;
2. Inuka kakhulu;
3. Eminye imibala yengeziwe, futhi imibala yamanje imhlophe, ephuzi, empunga, emnyama, ebomvu, njll.;
4. Inani elingeziwe lincane kakhulu, futhi inani elingeziwe lethani elilodwa liyi-5 ~ 12 kg;
5. Amandla okuqala ayamangalisa. Usimende awunawo amandla izinsuku ezintathu, futhi ungakwazi ukugqwala ibhodi lokufakelwa futhi linamathele.
6. Kuthiwa ibhodi le-XPS lingasetshenziswa ngaphandle kwe-ejenti yesixhumi esibonakalayo.
Ngokusebenzisa amasampula atholwe kuze kube manje, kungaphethwa ngokuthi iyi-resin esekelwe ku-solvent ekhangiswa ngezinto ezimbotshana ezingasindi, kodwa umphakeli ufuna ukugwema igama elithi “solvent” ngamabomu, ngakho-ke ibizwa ngokuthi “impuphu yerabha”
ukushiyeka:
1. Ukumelana nesimo sezulu kwesincibilikisi kuyinkinga enkulu. Elangeni, lizoshintshashintsha ngesikhathi esifushane. Ngisho noma lingekho elangeni, isikhombimsebenzisi sokubopha sizobola ngokushesha ngenxa yokwakhiwa komgodi;
2. Ukumelana nokuguga, i-solvent ayikwazi ukumelana nokushisa, wonke umuntu uyakwazi lokhu;
3. Njengoba indlela yokubopha iwukuhlakaza isikhombimsebenzisi sebhodi lokufakelwa, ngokuphambene nalokho, iphinde ibhubhise isikhombimsebenzisi sokubopha. Uma kunenkinga esigabeni sakamuva, umthelela uzoba yingozi;
4. Asikho isibonelo sokufaka isicelo phesheya. Ngolwazi oluvuthiwe lwemboni yamakhemikhali eyisisekelo phesheya, akunakwenzeka ukuthi ungatholi le nto.
isifinyezo:
Itholakala ngempushana ye-latex ehlakazekayo:
1. Umkhiqizo wempushana we-latex ohlakazeka kabusha uyimpushana encibilika kabusha encibilika emanzini, eyi-copolymer ye-ethylene ne-vinyl acetate, futhi isebenzisa i-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 amazinga kazwelonke.
4. I-latex powder ehlakazeka kabusha inokusebenza okuphezulu: inekhono eliphezulu lokubopha, ukusebenza okuyingqayizivele nokusebenza okuvelele okungangeni manzi, amandla okubopha okuhle, inika udaka ukumelana okuhle kakhulu kwe-alkali, futhi ingathuthukisa ukunamathela namandla okuguquguquka kodaka. , ipulasitiki, ukumelana nokugqoka kanye nokwakhiwa, inokuguquguquka okunamandla ku-anti-cracking mortar.
I-Resin powder:
1. Impuphu yerabha ye-resin iwuhlobo olusha lwesilungisi senjoloba, inhlaka, i-macromolecular polymer, impushana yerabha ephansi nezinye izinto.
2. Impuphu yerabha ye-resin inokuqina okujwayelekile, ukumelana nokuhuzuka, ukuhlakazeka okuncane, abanye bazizwa be-flocculent (kufanele kube into enezimbotshana njenge-sepiolite), kanye nempushana emhlophe (kodwa inephunga elimnandi elifana nelikaphalafini) ).
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, lizoshintshashintsha ngesikhathi esifushane. Ngisho noma ingekho elangeni, isikhombimsebenzisi sokubopha, Njengoba siwukwakhiwa kwe-cavity, izophinde ibole ngokushesha.
5. I-resin rubber powder ayinakho ukubunjwa, noma ukuguquguquka. Ngokwezinga lokuhlolwa kodaka lwangaphandle lokufakwa ezindongeni zangaphandle, izinga lokucekelwa phansi kwebhodi le-polystyrene kuphela elihlangabezana nezinga. Ezinye izinkomba azikho ezingeni.
6. I-resin glue powder ingasetshenziselwa kuphela ukuhlanganisa amabhodi e-polystyrene, hhayi ukuhlanganisa ubuhlalu obuqinisekisiwe namabhodi angashi.
Isikhathi sokuthumela: Oct-26-2022