Elastomers kanye nesicelo sabo .

Ama-polyurethane elastomers angamalungu eqembu lamapulasitiki akhiwa ngenxa yokulumbana, futhi amaketanga awo aphambili aqukethe amaqembu we-urethane. Kubhekiswe njenge-PUR noma i-PU, banezinto eziningi ezibalulekile. Izinzuzo zabo nentengo enhle kakhulu yenza ama-elastomers abe yinto esetshenziswa kabanzi ezimbonini eziningi.

Izici ze-elastomers
Izinto ze-PUR ziyimpahla enjoloba enjoloba. Ukusuka kwenjoloba ziyehluka, phakathi kwabanye ngoba banezinhlaka ezingcono kakhulu zomzimba nezamakhemikhali kunale. Ngaphezu kwalokho, kungenzeka ukubumba izakhiwo zama-polyurethane elastomers ebangeni ebanzi kakhulu. Ekusebenzeni, lokhu kusho ukuthi i-PU iyinto yendalo yonke.

Izinzuzo zalo ezinkulu zibandakanya inkomba yokuxhaphaza ephezulu, efinyelela kuyo ngenxa yokubhekana nayo okuphezulu kakhulu:

izinto zamakhemikhali ezifana nophethiloli, izinyibilikisi, amafutha, amafutha, i-sulfuric acid, isisombululo se-sodium hydroxide namanzi anosawoti; ngaphezu kwalokho, imikhiqizo ye-PU ingasebenza endaweni i-pH ephakathi kuka-5 no-12,
umswakama kanye nezinye izimo zezulu ezingezinhle,
nemihuzuko,
ukwelula, ukuklebhula nokuqhekeka - imikhiqizo eyenziwe ngepulasitiki lePUR imelana ngokuphumelelayo namazinga okushisa ukusuka--40 ° C kuya ku- + 80 ° C,
ukuguga.
Iziphi ezinye izici ezigqamile nge-polyurethane elastomers? Kufanelekile ukusho lapha ukuthi kukhona:

self-zokucisha
amapuleti,
non-wokugubha,
okuphindwe kayisithupha kunensimbi.
Ngaphezu kwalokho, imikhiqizo eyenziwe ngezinto ezi-PUR inezindawo ezinhle kakhulu zokuncibilika kokudlidliza futhi zingasetshenziswa kuzo zombili izimo ezimanzi nezomile. Ekugcineni, bahlukaniswa indawo ebushelelezi futhi ecwebezelayo nobunzima obuhlukahlukene, okungavimbeli ukugcinwa kokuphakama okukhulu.

Yini ukusetshenziswa kwepulasitiki wePUR?
Ama-polyurethane elastomers asetshenziswa kakhulu, phakathi kwabanye emishini yemishini, yezamakhemikhali nezindwangu. Njengendwangu efana nenjoloba, enezakhiwo ezingcono kakhulu kunalezo irabha ngokwayo, iyinto enhle kakhulu yokwenziwa kwemikhiqizo enjengale:

gaskets,
ulwelwesi,
ama-roller roller,
amashubhu angaphakathi ebhayisekili,
amasondo ezimoto zezimboni,
scrapers
shayela amabhande, iziteshi zokuphrinta nezinduku zezinhlobo ezahlukahlukene zemishini yezimboni,
ama-roller, ama-pads wokulanywa kokudlidliza nezinye izinto ezifashisayo,
iziqhumane zemoto ezethusayo.
Njengoba ukwazi ukubona, indima yama-polyurethane elastomers embonini ibalulekile, futhi ububanzi bokusebenzisa kwabo banzi kakhulu.