Polyurethane upende - upende art

Emashumini eminyaka amuva nje iye yabonisa ukuthi ukuthuthukiswa ubuchwepheshe besimanje akagcini okwesikhathi sesibili. Sikhanyisiwe ezinengilazi eziningi ezintsha, ubuchwepheshe ngcono, ukwandisa amathuba abakhi abathengi kudingeka. Isakhi esiyinhloko ukuthuthukiswa yesimanje isibe impahla yokufakelwa - polyurethane. It is kabanzi, kodwa ngokuvamile iningi kungabonwa indawo injoloba yemvelo kanye iraba. Nokho, izindawo eziyingqayizivele polyurethane ubavumele ukuba esikhundleni plastic ngisho metal.

Nokho, manje sizoxoxa lo mkhiqizo njengoba upende polyurethane. Okubalulekile okunjalo has a izici ngokwanele ethize, has eziphansi, futhi umelana ukusonteka mechanical, ekwazi ukumelana ububanzi lokushisa ububanzi futhi ukuphila service ngokwanele eside.

Polyurethane Upende futhi elinesimo izinga eliphakeme ukumelana wethonya elonakalisayo acid kanye alkalis, amafutha ahlukahlukene nophethiloli. upende okunjalo ezinengilazi zingahlukaniswa ngamaqembu amabili: elilodwa-ingxenye futhi ezimbili ingxenye.

Njengoba leli gama lisikisela, umehluko oyinhloko kula maqembu amabili isamba izingxenye. upende One-ingxenye kuyinto iraba-like nezimo upende, okuyinto ifana ngopende abavamile. compounds okunjalo zidayiswa ngokushesha isilungele ukusetshenziswa, okusho ukuthi akukho letengetiwe for ekuwulungiseleleni, okuyinto kunciphisa kakhulu isikhathi umsebenzi wokulungisa.

Ngesikhathi esifanayo, i-pair of izingxenye ukuthi siqukethe le enamathela polyurethane - elapha ejenti kanye nesakhiwo anenhlaka - zitholakala ezitsheni ezahlukene. Kufanele uxhumeke olinganise ethize. Nokho, lobu buchwepheshe inezici eziningi ezinhle:

1. Lapho enamathela kuyinto inqubo ukuqina noma polymerization kokuqanjiwe. Yena ngempumelelo ugijima ngaphandle umswakama, futhi ngenxa yalokho, ukusabela ngaleyo ndlela kwenza kube nokwenzeka ukuba banake sedlule izinto ezifana iqhwa, lina, kunenkungu.

2. Kulula ukukhiqiza ivolumu wayefisa impahla upende. Ukuba ithuba ukuzalela kuphela lemali edingekayo inki kungaba kakhulu ukunciphisa ukusetshenziswa yayo futhi ngenxa yalokho, ukuze ulondoloze ku ukuthengwa izinto. Nokho, polyurethane upende kabi agcinwe dilution kwesikhathi eside. Ngisho ngaphansi kwezimo ezithile.

3. Sebenzisa yi kuyinto enamathela eqinile futhi iqine. Kule ndaba, enamathela ezimbili ingxenye has a inzuzo enkulu phezu evamile ingxenye eyodwa.

Ngenxa yalokho, luthi alufane polyurethane ihlinzeka bafake ukumelana enamathela nokunwebeka okuyinto ngokwanele ukumelana umonakalo mechanical zamakhemikhali, kanye umelana UV. enamathela okunjalo ziyasatshalalaiswa ngokusebenzisa yizinhlobonhlobo: kungenzeka nangaphandle kanye nekudvweba yangaphakathi.