Njirimara

DB 75 bụ sistemụ okpomọkụ mmiri mmiri na ihe nkwụsi ike ọkụ nke e mere maka polyurethanes

Ngwa

A na-eji DB 75 eme ihe na polyurethanes dịka Reaction Injection Molding (RIM) polyurethane na thermoplastic polyurethane (TPU). A pụkwara iji ngwakọta a mee ihe na ihe mkpuchi na ihe nrapado, na mkpuchi polyurethane na tarpaulin na ala ụlọ yana na akpụkpọ anụ sịntetik.

Atụmatụ/uru

DB 75 na-egbochi mmebi nhazi, ìhè na ihu igwe kpatara
nke ngwaahịa polyurethane dị ka akpụkpọ ụkwụ, ngwa egwu na ọnụ ụzọ, wiil ndị na-anya ụgbọala, mkpuchi windo, ebe a na-edebe isi na ogwe aka.
Enwere ike itinye DB 75 na sistemụ polyurethane na-esi ísì ụtọ ma ọ bụ aliphatic maka ịkpụzi thermoplastic, ụfụfụ integral semi-siri ike, akpụkpọ anụ in-mold, na ojiji dope. Enwere ike iji ya na ihe ndị sitere n'okike na agba. DB 75 dabara adaba karịsịa maka ịkwadebe pasta agba dị mfe maka sistemụ ndị a kpọtụrụ aha n'elu.
Uru ndị ọzọ:
mmiri dị mfe ịgbapụta, mmiri a na-awụsa nke na-enye ohere ka anaghị eji uzuzu eme ihe, usoro onunu akpaaka na mbelata oge ịgwakọta ihe
ngwugwu mmiri niile; enweghị sedimentation nke ihe mgbakwunye na usoro polyol ọbụlagodi na obere okpomọkụ
na-eguzogide exudation/crystallization n'ọtụtụ sistemụ PUR

Ụdị Ngwaahịa Mmiri doro anya, odo odo ntakịrị

Ntuziaka maka ojiji

Ọkwa ojiji nke DB 75 dị n'etiti 0.2% na 1.5%, dabere na ihe achọrọ maka substrate na arụmọrụ nke ngwa ikpeazụ:
Ụfụfụ ihe abụọ na-emeghachi omume 0.6% – 1.5%
Ihe mmịnye 0.5% – 1.0%
Ihe mkpuchi 0.2% – 0.5%
Enwere ike iji data arụmọrụ sara mbara nke DB 75 maka ọtụtụ ngwa.

Njirimara Anụ Ahụ

Ebe esi mmiri > 200°C
Ọkụ ọkụ > 90°C
Njupụta (20°C) 0.95 – 1.0 g/ml
Mmiri na-agbaze (20°C) g/100 g
Acetone > 50
Benzene > 50
Chloroform > 50
Ethyl acetate > 50

Ngwugwu:25kg/mgba