I-HEC ye-Detergent

I-HEC I-Hydroxyethyl cellulose yintsinga emhlophe ukuya kwemthubi eluthuthu okanye eqinileyo engumgubo.Ayinatyhefu, ayinancasa.I-ether ye-cellulose e-nonionic, i-soluble emanzini abandayo kunye nashushu ngenxa ye-hydrophilic hydroxyethyl kwi-molecule.Isisombululo saso samanzi sinexabiso le-pH le-6.5 ~ 8.5 kwaye lizinzile ukutshisa.I-HEC ine-solubility eyahlukileyo ngokweqondo lokuthatha indawo (DS).I-insoluble kwi-solvents ezininzi eziphilayo.Ineempawu zokuqina, ukumiswa, ukunamathela, i-emulsification, i-dispersion kunye nokugcinwa komswakama, njl., kwaye inokulungiselela izisombululo ezinoluhlu oluhlukeneyo lwe-viscosity.Ine-solubility yetyuwa ngokungaqhelekanga kwi-dielectric, kwaye isisombululo sayo samanzi sivunyelwe ukuba siqulethe i-concentration ephezulu yeetyuwa kwaye sihlala singatshintshi.

Iselulosi yeHydroxyethyl I-HECimveliso yemathiriyeli ekrwada

Iimathiriyeli ekrwada engundoqo: I-cellulose yesixeko (i-cotton staple okanye i-pulp ephantsi), i-alkali engamanzi, i-ethylene oxide, i-ethylene diron (40%).

Inkqubo yefayibha yealkali yipolymer yendalo, iringi nganye yefiber iqulathe amaqela amathathu e-hydroxyl, eyona ndlela isebenzayo ye-hydroxyl reaction ukwenza i-hydroxyethyl cellulose.Gxisa i-staple ye-cotton ekrwada okanye i-pulp yokutya esulungekileyo kwi-30% yealkali yolwelo kangangesiqingatha seyure kwaye uyicinezele.Gcoba kwi-1: 2.8 iimeko zamanzi e-alkaline, uze utyumze.I-cellulose ye-alkali echotshoziweyo ifakwe kwi-kettle yokusabela, itywinwe, ifakwe i-vacuumized, izaliswe nge-nitrogen, kwaye iphinde ifakwe i-vacuumized kwaye ifakwe i-nitrogen endaweni yomoya kwimeko.Ulwelo olupholileyo lwe-ethylene oxide lwacinezelwa kwibhatyi yereactor ngamanzi okupholisa, kwaye impendulo yalawulwa malunga ne-25C ye-2h ukufumana imveliso ye-hydroxyethyl fiber cable ekrwada.Iimveliso ezikrwada ezinotywala ukuhlamba, zongeza i-acetic acid neutralization kwi-VLL 46, i-jean yongeza ukuguga kwe-glyoxal crosslinking.Emva koko hlamba ngamanzi, ukuchithwa kwe-centrifugal, ukomisa, ukugaya, i-hydroxyethyl cellulose.

1.1 ialkali engamanzi

Imveliso ecocekileyo lulwelo olungenambala olucacileyo.Uxinaniso olunxulumeneyo 2. 130, indawo yokunyibilika 318.4C, indawo yokubilisa 1390C.I-Caustic soda kwimarike inesimo somjikelezo.Kwaye ulwelo luziindidi ezimbini: i-soda esulungekileyo ye-caustic emhlophe, i-flake, ibhloko, i-granular kunye nemilo yentonga, i-cytoplasm: i-caustic soda ecocekileyo ebizwa ngokuba yi-alkali yolwelo, ulwelo olungenambala olucacileyo.Iimveliso zoshishino ziqulethe ukungcola, ikakhulukazi i-sodium chloride kunye ne-sodium carbonate, kwaye ngamanye amaxesha isixa esincinci se-iron oxide.

1.2 i-ethylene oxide

I-Ethylene oxide yi-organic compound, i-chemical formula C2H40, i-carcinogen enetyhefu.I-epoxy cane iyatsha kwaye iyaqhuma, akukho lula ukuyihambisa kumgama omde, ngoko kukho indawo eyomeleleyo.Isetyenziswa ngokubanzi kumashishini okuhlamba, amayeza, ukuprinta kunye nokudaya.I-3 oxyethane (E0) yi-ether yeringi elula kakhulu, ye-heterocyclic compounds, yimveliso ebalulekileyo yepetrochemical.I-ethylene oxide lulwelo olungenambala olucacileyo kubushushu obuphantsi kunye nerhasi engenambala enevumba elirhabaxa lemilenze kwiqondo lobushushu begumbi.Uxinzelelo lomphunga lwerhasi luphezulu kwaye lunokufikelela kwi-141kPa kwi-30C.Olu xinzelelo luphezulu lomphunga lumisela ukungena okunamandla kwe-epoxy z.alkane xa kuqhunyiswa.Indawo yokunyibilika (C): -112.2.Ubuninzi bobudlelwane (amanzi -1): 0.8711

1.3 glyoxal

Imbambo ezityheli okanye zithe saa ngokungaqhelekanga, zijike zibe mhlophe xa upholisa.

Iselulosi yeHydroxyethylUkuveliswa kwe-HECinkqubo

Bekai-cotton staple okanye i-pulp ecocekileyo kwi-30% ye-lye.Susa kwaye ucinezele.Emva koko iyatyunyuzwa kwaye isabele nge-ethylene oxide esele ipholile ukuvelisa i-hydroxyethyl cellulose ekrwada.Emva koko hlamba ngotywala kwaye ungeze i-acetic acid ukuze uhlambe kwaye ungathathi hlangothi.Emva koko yongeza ukuguga kwe-glyoxal crosslinking, ukuhlamba ngokukhawuleza ngamanzi.Ekugqibeleni, emva kwe-centrifugation dehydration, ukomisa kunye nokugaya, kugqityiweI-HECimveliso ifunyenwe.

Indlela yokuvelisa uthuthu oluphantsiI-HECI-hydroxyethyl cellulose ngenkqubo yokuhlamba eqhubekayo yeyomhlaba wobugcisa bezinto eziphathekayo.Ingxaki yobugcisa ekufuneka isonjululwe kukubonelela ngenkqubo yokuhlamba eqhubekayo kunye nokusebenza kakuhle kwemveliso, ilahleko encinci yokuhlanjwa kwe-solvent kunye nezinto eziphathekayo kunye neendleko eziphantsi ukuvelisa uthuthu oluphantsi.I-HECi-hydroxyethyl cellulose.Indlela yenkqubo yokuhlamba eqhubekayo ukuvelisa umlotha ophantsiI-HECi-hydroxyethyl cellulose ibonakaliswe kula manyathelo alandelayo: A, i-cellulose ekrwada ye-hydroxyethyl kunye ne-agent edibeneyo edibeneyo, unyango oludibanisayo ukufumana i-slurry A;B. Yongeza i-solvent yokuhlamba kwi-slurry A efunyenwe kwinyathelo A ukufumana i-slurry B;C. Yongeza i-slurry C efunyenwe kwisinyathelo B kwi-rotary pressure centrifuge kwaye ufumane i-ash ash hydroxyethyl cellulose emva kokuhlamba okuqhubekayo.Indlela inokuphucula kakhulu ukusebenza kakuhle, ukuphucula kakhulu ukulahleka kwe-solvent yokuhlamba kunye nezinto eziphathekayo, kunye nokunciphisa kakhulu umxholo womlotha wemveliso, ofanelwe ukuthandwa kunye nokusetyenziswa.