Polyurethane sịntetik akpụkpọ anụ bụ ihe ọhụrụ ọtụtụ ihe mejupụtara ihe mejupụtara nke mepụtara ngwa ngwa n'afọ ndị na-adịbeghị anya.A na-eme ya na ndabere nke mkpuchi polyurethane slurry nwere usoro cell mepere emepe na ala ala nke akwa akwa na akwa anaghị kpara.Otú ọ dị, ihe ka ọtụtụ n'ime polyurethane ndị a na-eji eme ihe bụ ihe mgbaze, na mmerụ ahụ na gburugburu ebe obibi na ahụ mmadụ kpatara site na DMF residue na VOC volatilization na mmepụta usoro aghọwo nkà na ụzụ na-egbochi mmepe nke ụlọ ọrụ ahụ.Ka ọ dị ugbu a, polyurethane nke mmiri na-adabere na mmiri bụ ezigbo ihe ngbanwe maka ihe mgbaze dabeere na polyurethane, ma ntụpọ ya bụ obere ihe siri ike, ihe ndị na-adịghị mma nke anụ ahụ, nkwụsị dị mfe n'elu mkpuchi mkpuchi, nkwụsị nke hydrolysis na-adịghị mma, nwayọọ nwayọọ na-agbanwe na usoro mmepụta mkpuchi, na mmepụta dị ala. arụmọrụ.
Dabere n'echiche nke "nchekwa akwụkwọ ndụ akwụkwọ ndụ na gburugburu ebe obibi" na imeziwanye uru nke ngwaahịa, ọrụ ahụ emepụtala usoro nke usoro nkà na ụzụ ọhụrụ maka mmepụta nke polyurethane dị elu na nke aqueous na ecological synthetic akpụkpọ anụ nke nwere ike dochie ihe mgbaze polyurethane.Nnukwu ihe siri ike nke polyurethane nke mmiri na-emepụta ma mepụta nwere ike ibelata ihe fọdụrụ DMF na VOC volatilization site na isi mmalite na-emepe emepe ma na-eme ka arụmọrụ mkpuchi dịkwuo mma.N'otu oge ahụ, n'ihi na ihe nkiri ahụ nwere ọnụ ọgụgụ dị ukwuu nke ìgwè hydrophilic na microporous akụkụ, mkpuchi nwere ezigbo ikuku na mmiri permeability, na ọ bụ ezigbo mmepụta ngwaahịa.Tụkwasị na nke ahụ, a na-eji ihe nano na-agbanwe polyurethane iji mepụta ngwaahịa akpụkpọ anụ synthetic polyurethane na-arụ ọrụ dị elu na multi-functional nke kwesịrị ekwesị maka ọchịchọ ahịa, iji meziwanye uru ngwaahịa agbakwunyere ma mee ka asọmpi ahịa sie ike.
Isi ihe nyocha:
(1) Nkà na ụzụ nkwadebe nke nnukwu ihe siri ike nke polyurethane na-ebu mmiri.Dị ka mgbakọ na mwepụ nlereanya nke nnukwu njupụta nke Spherical ihe, a elu siri ike ọdịnaya aqueous polyurethane na multi-akụkụ urughuru size nkesa na-akwado.The multi-akụkụ urughuru size nkesa nwere ike melite siri ike ọdịnaya nke ude na-amụba viscosity oke elu.A na-edozi nsogbu nke nnukwu viscosity na obere siri ike na mmepụta nke polyurethane dị elu nke mmiri na-emepụta.Ọdịnaya siri ike bụ> 50%, akụkụ kọntaktị nke ihe nkiri ahụ bụ 101.1 Celsius, a na-emeziwanye ihe mgbochi mmiri na nguzogide hydrolysis.
(2) Teknụzụ nrụpụta nke mmiri na-ebu polyurethane foamed bass.Dabere na nnukwu ihe siri ike nke polyurethane aqueous, a na-ahọrọ ngwakọta nke usoro ụfụfụ anụ ahụ na nke kemịkal iji mepụta bass polyurethane nke mmiri na cell nwere ike ịgbanwe.Ngwaahịa ahụ dị nro, dị arọ ma dị nro, na-eji ezigbo mmiri na-amịpụta na permeability, na-enweta ihe efu VOC na DMF na-emepụta ihe na-emepụta ihe, na-ebelata ihe isi ike nke ọgwụgwọ njedebe na ịchekwa ego nke mgbake mgbaze na ọgwụgwọ n'oge ikpeazụ.
(3) Nkà na ụzụ nkwadebe nke polyurethane na-arụ ọrụ mmiri.Multifunctional waterborne polyurethane na super hydrophobicity, eyi iguzogide na mgbochi static Njirimara ka akwadoro site na iji click mmeghachi omume usoro nke "mercapto monoene", nanotechnology na ìhè ọgwụgwọ technology.Enwere ike iji ya na akpụkpọ anụ sịntetik, mkpuchi textile, nkewa mmanụ-mmiri, mkpuchi electromagnetic na mpaghara ndị ọzọ.
Oge nzipu: Sep-13-2022