Ushishino lweemoto lusebenzisaiipolyurethanes eziguquguqukayokwizihlalo zeemoto kunye ne-polyurethanes eqinile ye
i-thermal kunye ne-sound insulations.Ngaphandle kombuzo, iimpawu ezibaluleke kakhulu ze-polyurethanes
kwizithuthi ubunzima obuphantsi bukhatshwa ngamandla omatshini aphezulu.Ezi mpawu ziphucula i
Imileage, iindleko-yokusebenza zamafutha, kunye nokhuseleko xa kungqubana (18, 19).Iipolyurethanes zikwasetyenziswa kwiingubo zeemoto.Iingubo zibalulekile kwiimoto, njengoko zibonelela ngokumelana nomhlwa kwiintsimbi ezisetyenziswa kumalungu omzimba.Bakwabonelela ngesiphumo segloss ukwenza iimoto zixhathise imozulu, zomelele kwaye zibe nomtsalane.Imizi-mveliso yeemoto kunye nefenitshala zisebenzisa i-flame retardants kwiingubo zazo zokhuseleko olongezelelweyo.Omnye umsebenzi wawufundisisa ubukho bezinto ezithintela amadangatye nempembelelo yazo kuthuli lwemoto (20).I-2,2-bis(chloromethyl)-propane-1,3-diyltetrakis(2-chloroethyl) bisphosphate, eyaziwa ngokuba yi-V6, isetyenziswa njenge-flame retardant kwi-foam yemoto, equlethe i-tris(2-chloroethyl) phosphate njenge-carcinogen eyaziwayo. ikhompawundi (Umfanekiso 12).Ukugxininiswa kuluhlu lwe-5-6160 ng / g ye-V6 kuthuli lwemoto lwabonwa, oluphezulu kakhulu kunothuli lwendlu.Nangona i-halogen-based flame 14 Gupta kunye neKahol;I-Polyurethane Chemistry: IiPolyols eziHlaziywayo kunye ne-Isocyanates ACS Symposium Series;I-American Chemical Society: Washington, DC, 2021. i-retardants iyasebenza ekucimeni umlilo, ubutyhefu babo ekukhutshweni kweegesi ze-carcinogenic
enkulu drawback.Ubungakanani obufanelekileyo bophando lunikezelwe ekuhlanganiseni izixhobo ezitsha ezisebenza kakuhle kwi-flame retardants ngaphandle kwenqanaba letyhefu eboniswa yi-halogen-based flame retardants.Uninzi lwezixhobo ezisetyenzisiweyo njengezinto ezibuyisela idangatye eziluhlaza zisekelwe kwi-oxide yensimbi (21), i-nitrogen (22), i-phosphorus (23), kunye ne-carbon (24).I-Aluminium trihydroxide, i-melamine, i-melamine cyanrate, i-melamine phosphate, i-ammonium phosphate, i-phosphorus ebomvu, i-phosphate esters, i-phosphinates, i-phosphonates, i-carbon black, kunye ne-graphite eyandisiweyo yimizekelo embalwa ye-retardants esebenzayo kunye ne-eco-friendly.Kucace kakhulu ukuba ukuphuhliswa kunye nokufundwa kwee-retardants zomlilo-ezibonisa ukuhambelana okufanelekileyo kunye ne-polyurethanes kwaye zingavelisi umsi onobuthi ngexesha lokutsha-zibaluleke kakhulu.

Isibhengezo:Inqaku licatshulwe kwiNtshayelelo yePolyurethane Chemistry Felipe M. de Souza, 1 Pawan K. Kahol, 2 kunye noRam K.Gupta *,1.Kuphela ukunxibelelana kunye nokufunda, ungenzi ezinye iinjongo zorhwebo, ayimeli iimbono kunye nezimvo zenkampani, ukuba ufuna ukuphinda uprinte, nceda uqhagamshelane nombhali wokuqala, ukuba kukho ukuphulwa, nceda uqhagamshelane nathi ngokukhawuleza ukwenza ukucima ukusetyenzwa.