N'ihe gbasara sayensị ihe onwunwe na-agbanwe agbanwe, polyurethane ka bụ isi ihe dị mkpa n'ihi ojiji ya dị iche iche, site na ụfụfụ dị nro ruo na ihe owuwu siri ike na ubi CASE (Mkpuchi, Ihe Mgbakwunye, Ihe Mkpuchi, na Elastomers). Dịka onye na-eweta ngwaahịa kachasị elu.ihe na-akpali polyurethane, obi dị anyị ụtọ iwebata Catalyst MB20, ihe na-akpali akpali nke dabere na bismuth organic nke e mere iji mee ka arụmọrụ na arụmọrụ nke sistemụ polyurethane dịkwuo mma.
Onye na-eme ka ihe na-akpali akpali MB20: Nhazi na Usoro
Catalyst MB20 bụ ihe na-akpali akpali bismuth organic kachasị ọhụrụ nke pụtara ìhè n'ihi ikike pụrụ iche ya ime ka mmeghachi omume polyurethane dị mfe. Bismuth, dịka ihe, na-enye nhọrọ dị mma maka ihe na-akpali akpali ígwè dị arọ n'ihi obere nsí na mmetụta gburugburu ebe obibi. Ọrụ catalytic nke MB20 bụ isi n'ihi ebe bismuth na-akpakọrịta na otu isocyanate na nhazi polyurethane, na-eme ka mmeghachi omume na polyols dịkwuo ngwa ngwa iji mepụta usoro polymer achọrọ.
Ngwa dị na ụfụfụ polyurethane dị nro na nke siri ike
A na-ejikarị ụfụfụ polyurethane dị nro eme ihe n'ọtụtụ ebe dịka ịkwa akwa n'ime arịa ụlọ, oche ụgbọala, na ihe ndina. Mgbanwe na ike iguzogide ụfụfụ ndị a dị oke mkpa, MB20 na-arụkwa ọrụ dị mkpa n'ime ka ihe ndị a dịkwuo mma. Mgbe ejiri ya mee ihe dị ka ihe na-akpali akpali, MB20 na-eme ka ọnụego mmeghachi omume dịkwuo elu, na-ahụ na nhazi sel na njupụta otu na ụfụfụ ahụ. Nke a na-eme ka ngwaahịa ndị na-emezughị naanị ma gafere ụkpụrụ ụlọ ọrụ maka nkasi obi na ogologo oge.
N'aka nke ọzọ, ụfụfụ polyurethane siri ike dị mkpa n'iwu maka ebumnuche mkpuchi, n'ihi na ha nwere ezigbo ihe mkpuchi okpomọkụ. Mmezi nke MB20 na-eme ka ụfụfụ ndị a nweta ike na ike dị mkpa ngwa ngwa, nke dị mkpa maka ngwa ebe nkwụsi ike nha na iguzogide okpomọkụ dị oke mkpa. Ọgwụgwọ ngwa ngwa nke MB20 mere ka ọ dị mfe na-ebelatakwa usoro mmepụta, na-eme ka arụmọrụ mmepụta dịkwuo mma.
Ime ka ngwa CASE ka mma
Ọdịiche dị n'etiti Catalyst MB20 na-abanye n'ime ngalaba CASE, ebe ọ na-eme ka arụmọrụ nke mkpuchi, ihe nrapado, ihe nrapado, na ihe nrapadomo ...
Mmekọrịta na Tertiary Amines
Otu n'ime ihe ndị pụtara ìhè nke MB20 bụ ikike ya ime ihe n'ụzọ kwekọrọ na amine ndị dị n'okpuru ala. Amines ndị dị n'okpuru ala bụ ndị a ma ama na kemịkalụ polyurethane, nke bụ isi na-eme ka mwakpo nucleophilic na otu isocyanate dịkwuo mma. Mgbe ejiri ya na MB20, amine ndị dị n'okpuru ala na-eme ka mmeghachi omume polyurethane na usoro ọgwụgwọ dịkwuo ngwa ngwa. Mmetụta synergistic a anaghị eme naanị ka mmeghachi omume ahụ dịkwuo ngwa ngwa kamakwa ọ na-eme ka njirimara zuru oke nke ngwaahịa ikpeazụ ka mma, ma ọ bụ ụfụfụ, mkpuchi, ihe nrapado, ma ọ bụ ihe mkpuchi.
Mmechi
Catalyst MB20 na-anọchite anya ọganihu dị ukwuu na polyurethane catalysis, na-ejikọta uru nke kemịkalụ bismuth organic na ọtụtụ ihe dị mkpa maka ngwa polyurethane dị iche iche. Ike ya ime ihe n'ụzọ kwekọrọ na amine tertiary na-eme ka ndị nrụpụta nwee ike nweta oge ọgwụgwọ ngwa ngwa na arụmọrụ ngwaahịa ka mma. Ka ụlọ ọrụ na-aga n'ihu na-achọ ngwọta na-adịgide adịgide na nke dị irè, MB20 pụtara ìhè dị ka ihe na-akpali akpali nke na-emezu ihe ndị a chọrọ, na-akwalite ihe ọhụrụ na ahịa polyurethane.
Oge ozi: Juun-25-2024