Ọrụ nke DMDEE Catalyst na Sistemụ Ụfụfụ Polyurethane nke HFO-Stable

Hydrofluoroolefins (HFOs) apụtala dị ka ihe dị mkpa na mmepụta nke ụfụfụ polyurethane na-egbochi ihe, nke bụ n'ihi obere ike ha nwere n'ịkpo ọkụ ụwa (GWP) ma e jiri ya tụnyere ihe ndị na-efe efe ọdịnala dịka hydrofluorocarbons (HFCs) na hydrochlorofluorocarbons (HCFCs). N'ime sistemụ ndị a, nkwụsi ike na arụmọrụ nke ihe na-akpali polyurethane dị oke mkpa iji nweta ihe ndị a chọrọ maka ụfụfụ. N'ime ihe na-akpali akpali eji eme ihe na sistemụ dabere na HFO, DMDEE (Dimethylethanolamine) pụtara ìhè n'ihi ndakọrịta na nkwụsi ike ya pụrụ iche.

Ịkwụsi ike na Sistemụ Ndị Dabere na HFO

A na-enwekwu mmasị na HFO n'ụlọ ọrụ ahụ n'ihi uru gburugburu ebe obibi ha na arụmọrụ dị irè na mkpuchi ụfụfụ. Agbanyeghị, iwebata HFO n'ime sistemụ polyurethane na-eweta ihe ịma aka pụrụ iche, ọkachasị gbasara nkwụsi ike nke ihe na-akpali akpali. Ihe na-akpali akpali amine ọdịnala nwere ike igosipụta mbelata nkwụsi ike na sistemụ dabere na HFO, na-eduga na enweghị nkwekọ na ịdị mma na arụmọrụ ụfụfụ. Nke a bụ ebeDMDEEna-arụ ọrụ dị mkpa.

A maara DMDEE maka ọrụ amine ya dị ala, nke na-eme ka ọ kwụsie ike nke ukwuu mgbe ejiri ya na sistemụ polyurethane nke dabeere na HFO. Nkwụsi ike a dị mkpa iji hụ na mmepụta ụfụfụ na-aga n'ihu, ebe ọ na-egbochi mmeghachi omume tupu oge eruo nke nwere ike imebi nhazi ụfụfụ ahụ na ihe mkpuchi ya. Ndakọrịta nke DMDEE na HFOs na-eme ka ọ nọgide na-arụ ọrụ n'oge usoro ụfụfụ ahụ, na-enye aka na nhazi sel otu na arụmọrụ mkpuchi kacha mma.

Ojiji zuru oke na HFO-StabledOnye na-eme ka ihe sie ikeNgwọta

Nkwụsi ike nke DMDEE na HFO emeela ka a nabata ya nke ọma n'ihe fọrọ nke nta ka ọ bụrụ ihe ngwọta mkpali niile dabere na HFO. Ọ dị irè karịsịa n'ịnọgide na-enwe nguzozi n'etiti mmeghachi omume ịfụ na ịgwọ ọrịa, nke dị oke mkpa maka inweta ụfụfụ dị elu nwere ihe mkpuchi okpomọkụ dị mma. Mbelata ọrụ amine nke DMDEE abụghị naanị na ọ na-eme ka nkwụsi ike ya dịkwuo mma kamakwa ọ na-enye aka na nhazi nke profaịlụ mmeghachi omume nke ụfụfụ ahụ, na-ahụ na usoro ụfụfụ dị nro ma na-achịkwa.

Ihe Ndị Na-eme Ka A Na-afụ Ọkụ n'Imepụta Ụfụfụ Polyurethane

Tinyere HFO, a na-eji ọtụtụ ihe ndị ọzọ na-afụ ụfụfụ polyurethane eme ihe, gụnyere HFCs, HCFCs, formats, ketones (dị ka acetone), na hydrocarbons. Onye ọ bụla n'ime ihe ndị a nwere njirimara nke ya nke nwere ike imetụta nhọrọ nke ihe na-akpali akpali. Agbanyeghị, na sistemụ dabere na HFO, ojiji nke DMDEE aghọwo ihe fọrọ nke nta ka ọ bụrụ ihe dị mkpa n'ihi nkwụsi ike na arụmọrụ ya na-enweghị atụ.

Na mmechi, ihe na-akpali akpali nke DMDEE na-arụ ọrụ dị mkpa n'ịkwado sistemụ polyurethane nke dabeere na HFO, na-ahụ na ịdị mma ụfụfụ na-adịgide adịgide na arụmọrụ mkpuchi ka mma. Ndakọrịta ya na HFOs na-eme ka ọ bụrụ ihe dị mkpa na ngwọta mkpuchi ọgbara ọhụrụ, nke na-adịghị emerụ gburugburu ebe obibi.