Ukusetyenziswa kwe-sodium antimonate endaweni ye-antimony trioxide kwi-fiber flame retardants: imigaqo yobugcisa kunye neenzuzo kunye nohlalutyo lokungalungi
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Intshayelelo
Njengoko iimfuno zehlabathi jikelele zobuhlobo nokusingqongileyo kunye nokhuseleko lwezinto ezithintela umlilo zisanda, ishishini lefayibha kunye nelaphu kufuneka liphonononge ngokungxamisekileyo ezinye iindlela ezingasetyenziswayo endaweni yezinto ezithintela umlilo zemveli. I-Antimony trioxide (Sb₂O₃), njengeyona nto iphambili kwiinkqubo ezithintela umlilo ze-halogen, ibisoloko ilawula imarike. Sekunjalo, ubuthi bayo obunokubakho, iingozi zokucubungula uthuli, kunye neengxabano zokusingqongileyo ziye zabangela ukuba eli shishini lifune izisombululo ezingcono. Ngenxa yolawulo lwaseTshayina lokuthumela ngaphandle kwiikhompawundi ze-antimony, i-antimony trioxide ayifumaneki kwimarike yamazwe ngamazwe, kwaye i-sodium antimonate (NaSbO₃) itsale ingqalelo ngenxa yeempawu zayo ezikhethekileyo zeekhemikhali kunye nemisebenzi yokutshintsha. Iqela lobuchwephesha le-UrbanMines Tech. Ltd., lidibene namava okusetyenziswa kunye namatyala okutshintsha i-sodium antimonate, liqokelele eli nqaku ngokwembono yobuchwephesha, laxoxa nabantu abanolwazi kushishino malunga nokuba kunokwenzeka ukuba i-sodium antimonate ithathe indawo ye-Sb₂O₃, kwaye lahlalutya imigaqo yalo iingenelo kunye nokungalungi.
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I. Ukuthelekiswa kweendlela ezithintela ilangatye: isiphumo sokusebenzisana kwe-sodium antimonate kunye ne-antimony trioxide
1. Indlela ethintela ilangatye ye-Sb2O2 yendabuko
I-Sb2O2 kufuneka isebenze ngokubambisana ne-halogen flame retardants (ezifana nee-bromine compounds). Ngexesha lenkqubo yokutsha, ezi zimbini zisabela ekwenzeni i-volatile antimony halides (SbX2), ezithintela ukutsha ngale ndlela ilandelayo:
Isithinteli selangatye sesigaba segesi: I-SbX₃ ibamba ii-free radicals (·H, ·OH) kwaye iphazamise ukusabela kwetsheyini;
I-Condensed phase flame retardant: ikhuthaza ukwakheka komaleko wekhabhoni ukuze kwahlulwe ioksijini nobushushu.
2. Iipropati ezithintela ilangatye ze-sodium antimonate
Ulwakhiwo lwekhemikhali lwe-sodium antimonate (Na⁺ kunye ne-SbO₃⁻) luyenza isebenze kabini:
Uzinzo lobushushu obuphezulu: iyabola ukuze ivelise i-Sb₂O₃ kunye ne-Na₂O kwi-300–500°C, kwaye i-Sb₂O₃ ekhutshiweyo iyaqhubeka nokusebenzisana nee-halogens zokurhoxisa ilangatye;
Isiphumo sokulawula i-alkaline: I-Na₂O ingayithomalalisa i-asidi yeegesi (ezifana ne-HCl) eziveliswa kukutsha kwaye inciphise ukubola komsi.
Amanqaku aphambili obuchwephesha: I-sodium antimony ikhupha iintlobo ze-antimony ezisebenzayo ngokubola, ifumana isiphumo sokurhoxisa ilangatye esilingana ne-Sb2O₃ ngelixa inciphisa umngcipheko wokuvezwa kothuli ngexesha lokucubungula.
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II. Uhlalutyo lweenzuzo zokutshintshwa kwe-sodium antimonate
1. Ukusingqongileyo okuphuculweyo kunye nokhuseleko
Ingozi ephantsi yothuli: I-sodium antimonate ikwimo ye-granular okanye i-microspherical, kwaye akulula ukuvelisa uthuli oluphefumlayo ngexesha lokucubungula;
Ingxabano encinci yetyhefu: Xa ithelekiswa ne-Sb2O2 (ebhalwe njengezinto ezinokubangela inkxalabo yi-EU REACH), i-sodium antimonate inedatha encinci yetyhefu kwindalo kwaye ayikalawulwa ngokungqongqo.
2. Ukucubungula ukusebenza kakuhle
Ukwanda kokusasazeka: Ii-ion zesodiyam zonyusa i-polarity, nto leyo eyenza kube lula ukusasazeka ngokulinganayo kwi-polymer matrix;
Ukuhambelana kozinzo lobushushu: Ubushushu bokubola buhambelana nobushushu bokucubungula (200–300°C) beefayibha eziqhelekileyo (ezifana ne-polyester kunye ne-nylon) ukuze kuthintelwe ukungasebenzi kakuhle kwangaphambi kwexesha.
3. Ukusebenzisana kwemisebenzi emininzi
Umsebenzi wokunciphisa umsi: I-Na₂O iphelisa iigesi ezine-asidi kwaye inciphisa ubuthi bomsi (ixabiso le-LOI linokwandiswa nge-2–3%);
Ukungathontsi: Xa kudityaniswe nezizalisi ezingaphiliyo (ezifana nodongwe olune-nano), ulwakhiwo lomaleko wekhabhoni luyaqina.
III. Imingeni enokubakho ekusebenziseni iSodium Antimonate
1. Ibhalansi phakathi kweendleko kunye nokusetyenziswa
Ixabiso eliphezulu lezinto ezikrwada: Inkqubo yokwenziwa kwe-sodium antimonate iyinkimbinkimbi kwaye ixabiso limalunga ne-1.2–1.5 le-Sb₂O₃;
Umxholo we-antimony ongasebenzi kakuhle: Phantsi kwenqanaba elifanayo lokurhoxisa ilangatye, ubungakanani bokongeza kufuneka bunyuswe ngama-20-30% (kuba i-sodium element iyawunciphisa umlinganiselo we-antimony). Nangona kunjalo, i-UrbanMines Tech. Ltd., kunye neenzuzo zayo ezikhethekileyo ze-R&D, inokuphucula iindleko zemveliso ye-sodium antimonate ukuba zibe ngaphantsi kune-antimony trioxide kwaye ithathe ngokukhawuleza inxalenye enkulu yesabelo semarike yehlabathi kwisiqingatha sonyaka.
2. Iingxaki zokuhambelana kobugcisa
Uvakalelo lwe-pH: I-Alkaline Na₂O inokuchaphazela ukuzinza kokunyibilika kwezinye iiresini (ezifana ne-PET);
Ulawulo lombala: Intsalela yesodiyam kumaqondo obushushu aphezulu inokubangela ukuba ifayibha ibe tyheli kancinci, nto leyo edinga ukuba kongezwe izinto ezinombala.
3. Ukuthembeka kwexesha elide kufuneka kuqinisekiswe
Umahluko ekumelaneni nemozulu: Ukufuduka kwee-ion zesodiyam kwiindawo ezishushu nezifumileyo kunokuchaphazela ukuqina kokungavuthi komlilo;
Imingeni yokuphinda kusetyenziswe: Inkqubo yokuphinda kusetyenziswe iikhemikhali kwiifayibha ezithintela ilangatye ezinesodium kufuneka ihlengahlengiswe.
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IV. Iingcebiso zesimo sesicelo
I-sodium antimonateifaneleke ngakumbi kwezi ndawo zilandelayo:
1. Iimpahla zelaphu ezinexabiso eliphezulu: ezifana neeyunifomu zokucima umlilo kunye neenqwelomoya zangaphakathi, ezineemfuneko ezingqongqo zokunciphisa umsi kunye nokunciphisa ubuthi;
2. Inkqubo yokugquma esekwe emanzini: isebenzisa ithuba lokusasazeka kwayo ukuze ithathe indawo yokumiswa kwe-Sb₂O₃;
3. Ifomula ethintela ilangatye edityanisiweyo: idityaniswe nezithinteli ilangatye ze-phosphorus-nitrogen ukunciphisa ukuxhomekeka kwe-halogen.
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V. Izikhokelo zoPhando lwexesha elizayo
1. Ukuguqulwa kweNano: Phucula ukusebenza kakuhle kokurhoxisa ilangatye ngokulawula ubungakanani bamasuntswana (<100 nm);
2. I-composite ye-carrier esekwe kwi-bio: idityaniswe ne-cellulose okanye i-chitosan ukuze kuphuhliswe iifayibha eziluhlaza ezithintela ilangatye;
3. Uvavanyo loMjikelo woBomi (LCA): Bala inani leenzuzo zokusingqongileyo zecandelo lonke leshishini.
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Isiphelo
Njengento enokuthi ithathe indawo ye-antimony trioxide, i-sodium antimonate ibonisa ixabiso elikhethekileyo ngokubhekiselele kubuhlobo bokusingqongileyo kunye nokuhlanganiswa kokusebenza, kodwa iindleko zayo kunye nokuguquguquka kobuchwephesha kusafuneka kuphuculwe. Ngemithetho engqongqo kunye nokulungiswa kwenkqubo, i-sodium antimonate kulindeleke ukuba ibe lukhetho olubalulekileyo kwisizukulwana esilandelayo se-fiber flame retardants, nto leyo eqhuba eli shishini ukuba liguqukele ekusebenzeni okuphezulu kunye nokungabi nabungozi.
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Amagama angundoqo: i-sodium antimonate, i-antimony trioxide, i-flame retardant, unyango lwefayibha, ukusebenza koxinzelelo lomsi