I-Sebacic Acid (CAS# 111-20-6)
Isicelo
Isetyenziswa kakhulu njengemathiriyeli ekrwada ye-sebacate plasticizer kunye ne-nayiloni yokubumba i-resin, kwaye inokusetyenziswa njengemathiriyeli ekrwada kwi-oyile yokuthambisa yokumelana nobushushu obuphezulu. Iimveliso zayo eziphambili ze-ester ziyi-methyl ester, i-isopropyl Ester, i-butyl ester, i-octyl Ester, i-nonyl ester kunye ne-benzyl ester, i-esters esetyenziswa ngokuqhelekileyo yi-dibutyl sebacate kunye ne-sebacic acid dioctyl grains.
I-Decyl Diester plasticizer ingasetyenziswa ngokubanzi kwi-polyvinyl chloride, i-alkyd resin, i-polyester resin kunye ne-polyamide yokubumba i-resin, ngenxa yetyhefu ephantsi kunye nokumelana nokushisa okuphezulu, isoloko isetyenziselwa enye injongo ekhethekileyo. I-nylon yokubumba i-resin eveliswe kwi-sebacic acid inokuqina okuphezulu kunye nokufunxa okuphantsi kokufuma, kwaye inokucutshungulwa kwiimveliso ezininzi ezikhethekileyo. Iasidi yeSebacic ikwayimathiriyeli ekrwada yezithambiso zerabha, ii-surfactants, ii-coatings kunye neziqholo.
Inkcazo
Umlinganiswa:
ikristale emhlophe enamabala.
indawo yokunyibilika 134~134.4 ℃
indawo yokubilisa 294.5 ℃
ukuxinana kobudlelwane 1.2705
refractive index 1.422
Unyibiliko lunyibilika kancinane emanzini, lunyibilika etywaleni nakwi-ether.
Ukhuseleko
I-asidi ye-sebacic ngokuyimfuneko ayinayo ityhefu, kodwa i-cresol esetyenziswa kwimveliso iyityhefu kwaye kufuneka ikhuselwe kwityhefu (jonga i-cresol). Izixhobo zokuvelisa kufuneka zivaliwe. Abanini-zithuthi kufuneka banxibe iimaski kunye neeglavu.
Ukupakisha kunye noGcino
Ipakishwe kwiingxowa ezilukiweyo okanye zehemp ezifakwe iiplastiki, ingxowa nganye inobunzima obuyi 25kg, 40kg, 50kg okanye 500kg. Gcina kwindawo epholileyo nengena umoya, umlilo kunye nokufuma. Musa ukuxuba kunye ne-asidi yolwelo kunye ne-alkali. Ngokutsho kwezibonelelo zokugcina ezinokutsha kunye nokuthutha.
Intshayelelo
Ukwazisa i-Sebacic Acid-ikristale eguquguqukayo, emhlophe ebhayibhile eye yanda ngokuthandwa kwiminyaka edlulileyo, enkosi kuluhlu lwayo lwezicelo kumashishini amaninzi. I-asidi ye-Sebacic yi-asidi ye-dicarboxylic kunye ne-chemical formula ye-HOOC (CH2) 8COOH kwaye iyanyibilika emanzini, e-alcohol, kunye ne-ether. Le asidi yendalo iqhele ukufunyanwa kwimbewu yesityalo se-oyile ye-castor, kwaye yenye yezona zinto zibalulekileyo ezisetyenziswa kwishishini lemichiza.
I-asidi ye-Sebacic isetyenziswa kakhulu njengemathiriyeli ekrwada ye-sebacate plasticizer kunye ne-nylon yokubumba intlaka. Oku kungenxa yokukwazi ukomeleza kakhulu ukuqina kunye nokuguquguquka kweepholima ezahlukeneyo ngaphandle kokubeka esichengeni ukusebenza kwazo okanye ukuzinza. Yongeza ukuxhathisa kumaqondo obushushu agqithisileyo, ukusikwa, kunye nokugqabhuka kunye nokuphucula amandla okuqina kunye noxinzelelo lwemathiriyeli yenayiloni. Ngenxa yoko, iye yamkelwa ngokubanzi kushishino lweplastiki.
I-asidi yeSebacic ikwasetyenziswa kakhulu ekuveliseni ioyile zokuthambisa ezinobushushu obuphezulu. Ngenxa yokuhambelana kwayo nendawo yobushushu obuphezulu, isebenza njengesiseko esigqwesileyo sezithambiso kwimizi-mveliso yeemoto kunye ne-aerospace. Ubume bayo obuzinzile nge-thermal ivumela ukunyamezela okukhulu kwizicelo zokushisa okuphezulu kunye nokunciphisa ukukhuhla kunye nokunxiba ngelixa uqinisekisa ukuthembeka kunye nokusebenza.
Enye indawo apho i-sebacic acid ifumana ukusetyenziswa kwayo kukwenza izinto zokuncamathelisa kunye neekhemikhali ezikhethekileyo. Idla ngokusetyenziswa kwizincamathelisi ngenxa yeempawu zayo zokumanzisa kunye nokugqobhoza. I-asidi ye-Sebacic isetyenziselwa ukuvelisa i-adhesives ephezulu yokusebenza kuba inokuphucula iimpawu zokubambelela kwi-adhesive.
I-asidi ye-Sebacic iphinda isetyenziswe njenge-corrosion inhibitor kunyango lwamanzi kunye nokuveliswa kweoli. Ukusebenza kwayo ekuthinteleni umhlwa kunye ne-oxidation yenza ukuba ilungele imibhobho kunye nezinye izixhobo ezisetyenziselwa ukuthutha kunye nokucubungula ioli kunye negesi yendalo.
Ngenxa yeempawu zayo ezimhlophe zekristale, i-sebacic acid inokuchongwa ngokulula kwezinye iikhemikhali. Oku kuyenza ibe yinxalenye enomtsalane kwishishini loxubo-mayeza njengoncedo. Ingasetyenziswa njenge-diluent, binder kunye ne-lubricant xa kusenziwa iifom zedosi ezahlukeneyo ezifana neetafile, iicapsules, kunye neesuppositories.
Ukuqukumbela, ukuguquguquka kwe-sebacic acid kunye noluhlu olubanzi losetyenziso kuyenza ibe yimveliso enomtsalane kakhulu ukuba isetyenziswe kuwo wonke amashishini amaninzi ukusuka kwiimoto kunye ne-aerospace ukuya kwimveliso yamayeza kunye neekhemikhali. Ukuzinza kwayo phantsi kweemeko ezinzima kuyenza ibaluleke kakhulu kumashishini amaninzi kuquka iplastiki, ioyile, igesi, kunye nonyango lwamanzi, ngelixa ukukwazi kwayo ukuphucula ukusebenza kweepolymers kubonisa ixabiso layo. Ngokubanzi, i-sebacic acid sisixhobo esibalulekileyo sokwakha inani leemveliso eziye zayimfuneko kubomi banamhlanje.
