Kwiminyaka yakutshanje, uninzi lwe-resin yerabha yomgubo, amandla aphezulu anganyangekiyo emanzinii-polymer powder enokuchithwa kwakhonakunye nolunye umgubo werabha onexabiso eliphantsi kakhulu luvele kwimarike ukuze luthathe indawo ye-emulsion yemveli ye-VAE (vinyl acetate-ethylene copolymer), eyomiswayo kwaye iphinde isetyenziswe.I-latex powder ehlakazekayo, ngoko ke yintoni umahluko phakathi komgubo werabha we-resin kunye ne-latex ephinda iphindwe, ingaba i-resin yerabha yomgubo ingathatha indawo yomgubo we-latex ophinda uhlawulwe?
1. Redispersible polymer powder RDP
Okwangoku, iipolymer powders ezisetyenziswa ngokubanzi emhlabeni zezi: i-vinyl acetate kunye ne-ethylene copolymer rubber powder (VAC / E), i-ethylene kunye ne-vinyl chloride kunye ne-vinyl laurate terpolymer umgubo werabha (E / VC / VL), i-acetic acid iVinyl ester kunye i-ethylene kunye ne-acid ephezulu enamafutha e-vinyl ester terpolymer umgubo werabha (VAC/E/VeoVa), ezi zintathu zomgubo wepolymer zisasazeke zilawula imarike yonke, ngakumbi i-vinyl acetate kunye ne-ethylene copolymer irabha engumgubo i-VAC/E/VeoVa E, inesikhundla esiphambili kwihlabathi jikelele. intsimi kwaye imele iimpawu zobugcisa ze-polymer powders ezihlakazekayo.Isesona sisombululo sihle sobuchwephesha ngokwamava obugcisa kunye neepolymers ezisetyenziswa kuhlengahlengiso lodaka:
1. Yenye yeepolima ezisetyenziswa kakhulu ehlabathini;
2. Yiba namava esicelo kwintsimi yokwakha;
3. Inokuhlangabezana neempawu zerheological ezifunwa ngudaka (oko kukuthi ukusebenza okufunekayo);
4. I-resin ye-polymer kunye namanye ama-monomers aneempawu ze-low organic volatile compounds (VOC) kunye neegesi ezicasulayo eziphantsi;
5. Ineempawu zokumelana ne-UV ebalaseleyo, ukumelana nobushushu obuhle kunye nokuzinza kwexesha elide;
6. Inokumelana ne-saponification ephezulu;
7. Inolona luhlu lubanzi lotshintsho lweglasi (Tg);
8. Inobambiso olubanzi olubanzi, ukuguquguquka kunye neempawu zoomatshini;
9. Yiba namava amade kakhulu kwimveliso yeekhemikhali malunga nendlela yokuvelisa iimveliso ezisemgangathweni ezizinzile kunye namava ekugcineni uzinzo lokugcina;
10. Kulula ukudibanisa ne-colloid yokukhusela (i-polyvinyl alcohol) kunye nokusebenza okuphezulu.
2. I-resin powder
Uninzi lwe "resin" yomgubo werabha kwimarike iqulethe imichiza ye-DBP.Unokujonga ubungozi bale khemikhali, echaphazela umsebenzi wesondo wesilisa.Inani elikhulu lee-powders ezinjalo ze-rubber zifakwe kwiindawo zokugcina iimpahla kunye neebhubhoratri, kwaye ziguquguqukayo ukuya kwinqanaba elithile.Imakethi yaseBeijing, edume ngokuvelisa "umgubo werabha", ngoku kuye kwavela uhlobo "lwerabha yerabha" efakwe kwi-solvents enamagama ahlukeneyo: umgubo wokuncamathelisa onganyangekiyo wamanzi, i-resin adhesive powder, njl. :
1. I-Dispersibility engafanelekanga, abanye baziva bemanzi, abanye baziva be-flocculent (kufuneka ibe yimpahla ene-porous efana ne-sepiolite), kwaye ezinye zimhlophe kwaye zome kancinci kodwa zisanuka;
2. Unuka kakhulu;
3. Eminye imibala yongezwe, kwaye imibala yangoku imhlophe, iphuzi, ingwevu, imnyama, ibomvu, njl.;
4. Isixa esongezelelweyo sincinci kakhulu, kwaye isixa esongezelelweyo kwitoni enye yi-5 ~ 12 kg;
5. Amandla okuqala ayamangalisa.Isamente ayinawo amandla kangangeentsuku ezintathu, kwaye inokugqwalisa ibhodi yokugquma iphinde incamathele.
6. Kuthiwa ibhodi ye-XPS ingasetyenziswa ngaphandle kwe-agent ye-interface.
Ngokusebenzisa iisampulu ezifunyenweyo ukuza kuthi ga ngoku, kunokugqitywa ukuba yintlaka esekwe kwi-solvent ebhengezwa ngezinto ezithambileyo ezikhaphukhaphu, kodwa umthengisi ufuna ukunqanda igama elithi “solvent” ngabom, ngoko ke kuthiwa “ngumgubo werabha”
ukusilela:
1. Ukumelana nemozulu ye-solvent yingxaki enkulu.Elangeni, iya kuguquguquka ngexesha elifutshane.Nangona kungekho elangeni, i-bonding interface iya kubola ngokukhawuleza ngenxa yokwakhiwa kwecavity;
2. Ukuchasana nokuguga, i-solvent ayinamandla okushisa, wonke umntu uyayazi le nto;
3. Ekubeni i-bonding mechanism kukuchitha i-interface yebhodi ye-insulation, ngokuchaseneyo, iphinda itshabalalise i-bonding interface.Ukuba kukho ingxaki kwinqanaba elilandelayo, impembelelo iya kuba yingozi;
4. Akukho mzekelo wokufaka isicelo phesheya.Ngamava aqolileyo oshishino lweekhemikhali ezisisiseko kwamanye amazwe, akunakwenzeka ukuba ungafumani le nto.
isishwankathelo:
Ifumaneka kumgubo welatex ochithwayo:
1. Imveliso ye-latex ye-powder powder ehlaziywayo yi-powder-soluble redispersible powder, eyi-copolymer ye-ethylene kunye ne-vinyl acetate, kwaye isebenzisa i-polyvinyl alcohol njenge-colloid ekhuselayo.
2. I-VAE i-latex i-powder edispersible ineempawu zokwenza ifilimu, i-50% isisombululo samanzi senza i-emulsion, kwaye yenza ifilimu efana neplastiki emva kokufakwa kwiglasi kwiiyure ezingama-24.
3. Ifilimu eyenziweyo inokuguquguquka okuthile kunye nokuchasana kwamanzi.Inokufikelela kwimigangatho yesizwe.
4. I-latex powder ehlaziywayo inokusebenza okuphezulu: inekhono eliphezulu lokubambisana, ukusebenza okuyingqayizivele kunye nokusebenza okugqwesileyo kwamanzi, amandla okubambisana okuhle, inika umdaka ngokumelana ne-alkali egqwesileyo, kwaye inokuphucula ukubambelela kunye namandla okuguquguquka kodaka., iplastiki, ukumelana nokunxiba kunye nokwakhiwa, inokuguquguquka okunamandla kwi-anti-cracking mortar.
I-resin powder:
1. I-resin powder yerabha luhlobo olutsha lwe-modifier yerabha, i-resin, i-polymer macromolecular, i-rubber powder powder kunye nezinye izinto.
2. Umgubo werabha we-resin unokuqina okuqhelekileyo, ukuxhathisa kwe-abrasion, ukungahambi kakuhle kwe-dispersibility, abanye baziva be-flocculent (kufuneka ibe yimpahla ene-porous efana ne-sepiolite), kunye nomgubo omhlophe (kodwa unevumba elibukhali elifana ne-kerosene) ).
3. Eminye i-resin powders i-corrosion kwibhodi, kwaye ukukhutshwa kwamanzi akufanelekanga.
4. Ukumelana nemozulu kunye nokuchasana kwamanzi kwi-resin rubber powder kuphantsi kunezo ze-latex powder.Ukumelana nemozulu yingxaki enkulu.Elangeni, iya kuguquguquka ngexesha elifutshane.Nangona ingekho elangeni, i-interface yokudibanisa, Ekubeni i-cavity yokwakhiwa, iya kubola ngokukhawuleza.
5. I-resin powder yerabha ayinakho ukubumba, okanye ukuguquguquka.Ngokomgangatho wokuhlola udaka lwangaphandle lwe-insulation kwiindonga zangaphandle, kuphela izinga lokutshabalalisa ibhodi ye-polystyrene idibana nomgangatho.Ezinye izalathisi azikho kumgangatho.
6. I-resin glue powder ingasetyenziselwa kuphela ukudibanisa iibhodi ze-polystyrene, kungekhona ukudibanisa ama-vitrified beads kunye neebhodi ezingenamlilo.
Ixesha lokuposa: Oct-26-2022