Polyurethane koqweqwe lwawo: Uhlolojikelele, izici, izinhlobo, isicelo

Ukuvikela evele emathonyeni amabi, kuhlanganise isimo sezulu, namuhla is kabanzi polyurethane koqweqwe lwawo, okuyinto wanikela ukudayiswa in ezahlukahlukene. Le nhlanganisela limelela polymers ahlukahlukene ukuba isithiyo izakhiwo. Uma Ukuqhathanisa zithako nabanye udayi, koqweqwe lwawo polyurethane engakwazi lufane nanoma yiziphi ezinye samuntu. Kaningi, ukwakheka isetshenziswa njengophawu enamathela ovikelayo, kusukela ifilimu has nesilinganiso eliphezulu ukuphepha.

Ukwahlukanisa polyurethane enamels

I Izingxube polyurethane ezihlukaniswe kwento okufanele ezimboziwe, kanye nohlobo isicelo kanye nokusungulwa. Kungasetshenziswa ukusebenzisa ibhulashi ekhethekile noma ibhodlela spray. Field yokusetshenziswa polyurethane koqweqwe lwawo izinhlobo ebanzi ngokwanele ezahlukene singasebenza itshe, ngokhuni noma insimbi. Ngaphambi kokusebenzisa imithi polyurethane ingxube ayidingekile prime, kodwa kufanele kahle omisiwe.

izici lobuchwepheshe

Omunye-ingxenye polyurethane koqweqwe lwawo laqanjwa eyenziwe polyurethane, sombala kanye kuphela. Phakathi izici eyinhloko imisindvo kumele ezigqanyisiwe:

• ukuqina;
• kuyaqina;
• harmlessness ngemva ukuhwamuka we kuphela;
• ukuzinza zamakhemikhali.

Polyurethane izingoma kahle zithobele evele nzima kakhulu.

Okunhlobonhlobo polyurethane enamels

Polyurethane koqweqwe lwawo kungenzeka ukuhlakazwa aqueous. Phakathi izinzuzo kukhona harmlessness ku ukudaya esiteji kanye nokwenzeka dilution ngamanzi plain. Akukhona olungele ukudaya evele hydrophobic enamels ezinjalo. Lokhu kumele kufake ukhonkolo, insimbi engagqwali futhi plastic.

Polyurethane iqukethe eliyingqayizivele chemical ukuguqulwa okuvumela ukwakheka egcinwe ngesimo i ukuhlakazwa aqueous of a ukuqina cha. Lokhu kuvumela enamathela eqinile bafake nemithi. Uma kudingeka, staining phansi endaweni yokusebenza Kunconywa ukuba makudle ukubunjwa ezihogelwayo.

Polyurethane koqweqwe lwawo ezihogelwayo

Polyurethane koqweqwe lwawo engenziwa esekelwe ezihogelwayo, ezifana xylene noma toluene. Ukusebenzisa kangcono inani dilution kumakhemikhali awuketshezi, okuyinto Kunconywa ngumkhiqizi. Ngemva kokuphulukisa, okuyinto ethatha izinsuku ezimbili, luthi alufane kuba izinga, ngokuthi izinzuzo main: ukuqina, ukumelana namanzi, ukumelana abezindaba nolaka.

Polyurethane upende koqweqwe lwawo omunye kukhona alkyd-urethane, bajwayele ukudala i enamathela nokunwebeka futhi iqine okuyinto osemanzi kancane, futhi iphunga omnene ngesikhathi ukudaya. Intengo ingxube ezifana kakhulu ephansi kuqhathaniswa eyodwa ingxenye urethane enamels.

Incazelo ezimbili ingxenye polyurethane enamels

Enamel yakhiwa ezimbili ingxenye polyurethane hardener kanye koqweqwe lwawo, eyokuqala sengezwe ngaphambi kokusetshenziswa. Ingxube unawo ukusebenza yayo amahora angu-3, kanye omiswe sithatha amahora 6. Izindleko zalesi impahla kuphezulu njengoba amandla enamathela. polyurethane okunjalo koqweqwe lwawo onesigqi ingase isetshenziselwe sensimbi ukulayishwa ngaphansi kwezimo ukukhiqizwa futhi izitolo ashisayo eziqhutshwa isimo nolaka.

I mkhawulo izinga lokushisa lokusebenza ingxube is +80 ° C futhi ingafinyelela ezingeni 100 ° C. Uma kukhona isidingo ukumboza ukwakhiwa, ezizosetshenziswa ezimweni umlilo, kubalulekile ukuba ukuthenga izingoma ekhethekile. Ngokwesibonelo, upende ku metal "Polysteel" lapho zihlatshwa lokushisa ukwakha Foam carbon okuyinto ngokuphephile umelana elangabini bese ukushisa nangokuvikela 1.5 amahora.

Isicelo polyurethane koqweqwe lwawo "Elakor-PU"

Uma udinga priming koqweqwe lwawo polyurethane, banake "Elakor-PU", ukubaluleka okuyinto amakhilogramu ruble 275 ngalinye. Lokhu sokuqamba kufanele kusetshenziswe ngaphansi kwezimo ezithile, okuyinto eshiwo ku engekho phansi kuyanda amanzi capillary. Kubalulekile futhi ukuba khona base ungangenisi amanzi. Asalayo umswakama ebusweni akufanele bube ngaphezu kuka-5%. Ngaphambi kokufaka isicelo ukubunjwa kwamanzi kuqeda ezindaweni oily. Uma kuziwa isisekelo ukhonkolo, kufanele sanded nge umshini ekhethekile ukususa izinsalela elidala upende, ukungcola kanye laitance.

Ngaphambi ukhonkolo polyurethane koqweqwe lwawo sisetshenziswa, ebusweni kufanele dedusted Usebenzisa zezimboni cleaner wezindlu, futhi ngemva ikhava primer kamakhi efanayo. Ngaphambi ukusetshenziswa, ingxube enyakaza kahle, futhi kubalulekile ukuba sisebenzise polyamide roller 4 ungqimba. Inombolo ubuncane izingqimba kuyinto 2, nenani lokugcina lizoncika Izinjongo tilandzelwe. Phakathi laphakathi kuyadingeka ukuze ulinde amahora mayelana 4-8.

Ukusebenzisa koqweqwe lwawo Ukhonkolo "Elakor PU-Enamel-60"

Lokhu koqweqwe lwawo kuyinto umswakama-elapha eyodwa ingxenye umbala semigloss ingxube njengosuku inzuzo enkulu zazo kungenzeka kwesicelo ngaphansi kwamazinga okushisa aphansi. Ngemva polymerization, esiqinile kwakhiwa bafake ukumelana plastic polymer ebusweni okuyinto ehlukile chemical ukumelana.

Ukulungiselela kanye ukuhlanzwa itholakala ebusweni priming okuyinto camera emva koqweqwe lwawo ezingeni lokushisa kusuka -30 kuya +25 ° C. I lokushisa impahla zingahluka kusuka +10 ukuba +25 ° C. Kubalulekile ukucabangela nomswakama isihlobo lomoya, akufanele idlule ku-80%. Ngaphambi isicelo ukwakheka kuyinto okuxubile kuze umbala umfaniswano nokuthi siqine kangakanani. Ngenxa yalesi mixer ingasetshenziswa upende, okuyinto efakwe umfutho ku ezahlukene kuka-400 no-600 ngomzuzu.

Ukuze umsebenzi, ungasebenzisa ezinamasondo noma emabhulashini, okuyinto amelana imithi yokususa ingcekeza elenkani. Ungasebenzisa airless spray ubuchwepheshe. Kokunye ungqimba, endaweni imitha square, kuzothatha cishe 150 g koqweqwe lwawo. Umphumela wokugcina kuzoncika olubushelelezi we ebusweni. omiswe wakubo ihlala isikhathi esilinganayo, njengoba kule samuntu ngenhla.

isiphetho

Uma unquma ukusebenzisa ezimbili ingxenye polyurethane Ukwakheka, kumelwe acabangele ukuthi uhlelo lwayo lokusebenza is hhayi eyenziwa ezindaweni ezimanzi. Le mfuneko kungenxa yokuthi i-ejenti sokwelapha bazothini nge ketshezi ukukhululwa carbon dioxide, okuyinto enomthelela yesivini we ebusweni.