Te Whakaahuatanga

Ko te DB 75 he pūnaha whakaū wera me te mārama wai i hangaia mō ngā polyurethane.

Tono

E whakamahia ana te DB 75 i roto i ngā polyurethane pērā i te polyurethane Reaction Injection Molding (RIM) me te polyurethane thermoplastic (TPU). Ka taea hoki te whakamahi i te ranunga ki ngā mahi hiri me te whakapiripiri, ki te paninga polyurethane i runga i te tarpaulin me te papa me te hiako hangai.

Ngā Āhuatanga/Painga

Ka ārai te DB 75 i te pirau i puta mai i te tukatuka, te mārama me te huarere
o ngā hua polyurethane pērā i te kapu hū, ngā panera taputapu me ngā panera tatau, ngā wira urungi, ngā taupoki matapihi, ngā okiokinga upoko me ngā okiokinga ringa.
Ka taea te tāpiri ngāwari i te DB 75 ki ngā pūnaha polyurethane kakara, aliphatic rānei mō ngā whakakikorua kirihou wera, ngā pahuka whakauru āhua-pakari, te kiri i roto i te whakakikorua, me ngā tono paninga. Ka taea te whakamahi me ngā rauemi taiao me ngā rauemi tae. He tino pai te DB 75 mō te whakarite i ngā whakapiri tae māmā pumau mō ngā pūnaha kua whakahuatia ake nei.
Ngā painga tāpiri:
he ngāwari ki te papu, he wai ringihia ka taea te whakahaere kia kore ai e puehu, he inenga aunoa me te whakapoto i te wā whakaranu
he putea wai katoa; kāore he whakatōnga o ngā tāpiringa i roto i te wāhanga polyol ahakoa i ngā pāmahana iti
ātete ki te exudation/crystallization i roto i te maha o ngā pūnaha PUR

Ngā Āhua o te Hua He wai mārama, he paku kōwhai

Ngā aratohu mō te whakamahinga

Ko ngā taumata whakamahinga o te DB 75 kei waenga i te 0.2% me te 1.5%, i runga i te papa me ngā whakaritenga mahi o te tono whakamutunga:
Ngā pahuka whakauru wāhanga-rua tauhohe 0.6% – 1.5%
Ngā piripiri 0.5 % – 1.0 %
Ngā hiri 0.2 % – 0.5 %
He whānuitia ngā raraunga mahi o te DB 75 e wātea ana mō ngā tono maha.

Ngā Āhuatanga Ā-tinana

Te Pūnga Kohua > 200 °C
Pūwāhi mura > 90 °C
Kiato (20 °C) 0.95 – 1.0 g/ml
Te wairewatanga (20 °C) karamu/100 karamu o te wairewa
Āketona > 50
Benzene > 50
Korowhara > 50
Etila āsetati > 50

Mōkihi:25kg/pahu