Indasteri ea likoloi e sebelisoaflexible polyurethanesbakeng sa litulo tsa koloi le li-polyurethanes tse thata bakeng sa
li-insulation tsa mocheso le molumo.Ntle ho pelaelo, likarolo tsa bohlokoa ka ho fetisisa tsa polyurethanes
likoloing ho na le boima bo tlase bo tsamaeang le matla a phahameng a mochini.Lintlha tsena li ntlafatsa boemo ba
lik'hilomithara, ho sebetsa hantle ha mafura, le polokeho khahlano le ho thulana (18, 19).Li-polyurethanes li boetse li sebelisoa ka liaparo tsa koloi.Liaparo li bohlokoa bakeng sa likoloi, kaha li fana ka khanyetso ea kutu ho litšepe tse sebelisoang likarolong tsa 'mele.Li boetse li fana ka phello e benyang ho etsa hore likoloi li hane boemo ba leholimo, li tšoarelle nako e telele, 'me li khahle.Liindasteri tsa likoloi le tsa thepa ea ka tlung li sebelisa lintho tse thibelang malakabe liaparong tsa tsona bakeng sa polokeho e eketsehileng.Buka e ’ngoe e ile ea ithuta ka boteng ba lintho tse thibelang malakabe le phello ea tsona lerōleng la koloi (20).2,2-bis(chloromethyl) -propane-1,3-diyltetrakis(2-chloroethyl) bisphosphate, e tsejoang ka hore ke V6, e sebelisoa e le ntho e thibelang lelakabe ho foam ea koloi, e nang le tris(2-chloroethyl) phosphate e le carcinogen e tsebahalang. motsoako (Setšoantšo sa 12).Ho ile ha hlokomeloa mahloriso ka har'a 5-6160 ng / g ea V6 ka lerōle la koloi, e neng e phahame haholo ho feta lerōleng la ntlo.Le hoja lelakabe le thehiloeng halogen 14 Gupta le Kahol;Polyurethane Chemistry: Renewable Polyols le Isocyanates ACS Symposium Series;American Chemical Society: Washington, DC, 2021. li-retardants li sebetsa hantle ho tima mollo, chefo ea tsona ea ho lokolloa ha likhase tsa carcinogenic ke
drawback e kholo.Palo e lekaneng ea lipatlisiso e etselitsoe ho kopanya lisebelisoa tse ncha tse thibelang lelakabe tse sebetsang hantle ntle le boemo ba chefo bo bontšitsoeng ke li-halogen-based flame retardants.Bongata ba lisebelisoa tse 'nileng tsa sebelisoa e le li-retardants tse tala tsa malakabe li thehiloe holim'a tšepe ea oxides(21), nitrogen (22), phosphorus (23) le carbon (24).Aluminium trihydroxide, melamine, melamine cyanrate, melamine phosphate, ammonium phosphate, red phosphorus, phosphate esters, phosphinates, phosphonates, carbon black, le graphite e atolositsoeng ke mehlala e seng mekae ea li-retardants tse sebetsang hantle le tse nang le tikoloho.Ho hlakile haholo hore nts'etsopele le thuto ea li-flame retardants-tse fanang ka tumellano e nepahetseng le polyurethanes 'me ha li hlahise mosi o chefo nakong ea ho tuka-ke tsa bohlokoa haholo.

Phatlalatso:Sengoloa se qotsitsoe ho Introduction to Polyurethane Chemistry Felipe M. de Souza, 1 Pawan K. Kahol, 2 le Ram K.Gupta *,1 .Feela bakeng sa puisano le ho ithuta, u se ke ua etsa merero e meng ea khoebo, ha e emele maikutlo le maikutlo a k'hamphani, haeba u hloka ho hatisa hape, ka kopo ikopanye le mongoli oa pele, haeba ho na le tlōlo ea molao, ka kopo ikopanye le rona hang-hang ho etsa ts'ebetso ea ho hlakola.