Ubume bophuhliso lweteknoloji yemveliso ye-HPMC kunye nenkqubo ye-hydroxypropyl methyl cellulose e-China

Ubume bophuhliso lweteknoloji yemveliso ye-HPMC kunye nenkqubo ye-hydroxypropyl methyl cellulose e-China

I-Hydroxypropyl methyl celluloseHPMCkwimveliso yangoku yasekhaya inikwa kuqala kunye nesigaba solwelo indlela iteknoloji, le teknoloji imelwe wuxi kushishino lwemichiza yophando kunye neziko loyilo kwiyunithi yophando China ngeminyaka yee-1970, impumelelo yophando ngesiseko sonyuselo, imvelaphi yinqanaba legesi indlela yokusabela etherification, ngenxa yokuba izixhobo aziqhelani nelizwe lethu, emva koko kusetyenzwa kwisigaba solwelo indlela yokusabela etherification, Ukuza kuthi ga ngoku inqanaba eliphezulu lenkqubo yokusabela ulwelo luselulwelo oluyaziwayo. abavelisi be-ether cellulose.

Imveliso yasekhaya hydroxypropyl methyl cellulose HPMC ngokubanzi isebenzisa umqhaphu esulungekisiweyo njengezinto ekrwada (abanye abavelisi nabo baqala ukuzama ukusebenzisa umthi womthi), kunye negrinder yasekhaya yokusila okanye ukusebenzisa ngokuthe ngqo umqhaphu osulungekileyo alkalization, etherification usebenzisa i-binary mixed organic solvent, reaction in the reactor vertical. Inkqubo yokucoca isebenzisa inkqubo ephazamisayo apho i-solvent ye-organic isuswa kwi-reactor kwaye imveliso engcolileyo ihlanjululwa ngeendlela ezininzi zokuhlambela kunye nokukhutshwa kwamanzi ngokusebenzisa i-scrubbers kunye ne-centrifuges. Kugqityiwe ukusetyenzwa kwemveliso kunye negranulation ephazamisayo, phantsi kwemeko yokufudumeza (kukwakho umenzi ngaphandle kwegranulation), ukomisa kunye nokutyumza ngendlela eqhelekileyo, ininzi yokulungiswa okukhethekileyo kukulibaziseka nje ixesha lokuchithwa kwemveliso (ukunyibilika ngokukhawuleza) ukuqhutyelwa ngaphandle kokuthintela ukubola kunye nokuhanjiswa kokuhanjiswa, ukupakishwa kusetyenziswa indlela yezandla.

Indlela yesigaba solwelo inezi nzuzo zilandelayo: inkqubo yokusabela isixhobo soxinzelelo lwangaphakathi luncinci, iimfuno zoxinzelelo lwezixhobo ziphantsi, umngcipheko omncinci; Emva kokukhulelwa kwi-lye,iselulosiinokwandiswa ngokupheleleyo kwaye ngokulinganayo alkaliized. I-Lye ine-infiltration engcono kunye nokuvuvukala kwe-cellulose. I-reactor ye-etherification incinci, idibene nokudumba okufanayo kwe-alkali cellulose, ngoko umgangatho wemveliso kulula ukulawula, idigri yokutshintshwa kunye ne-viscosity inokufumaneka iimveliso ezifanayo, iintlobo zikwalula ukubuyisela.

Nangona kunjalo, le nkqubo nayo ineziphene ezilandelayo: i-reactor ayidlanga kakhulu, ukulinganiselwa kwamanani kukhokelela kumthamo omncinci wokuvelisa, ukwenzela ukuba kuphuculwe imveliso, kuyimfuneko ukwandisa inani le-reactors; Iimveliso ezikrwada ezisulungekisiweyo nezicocwe zifuna izixhobo ezingaphezulu, ukusebenza okuntsonkothileyo, ukuqina kwabasebenzi; Ngenxa yokuba akukho-anti-mildew kunye nonyango oluxutywe, okubangela ukuzinza kwe-viscosity yemveliso kunye neendleko zemveliso zichaphazelekayo; Ukupakishwa ngendlela yezandla, ukuqina kwabasebenzi, iindleko eziphezulu zabasebenzi; I-automation degree of reaction control ingaphantsi kunenkqubo yesigaba segesi, ngoko ke ukuchaneka kokulawula kuphantsi. Xa kuthelekiswa nenkqubo yesigaba segesi, iinkqubo ezinzima zokubuyisela i-solvent ziyafuneka.

Ngokuphuculwa kwe-hydroxypropyl methyl cellulose yasekhayaHPMCiteknoloji yokuvelisa, amanye amashishini ngokusebenzisa innovation eqhubekayo ezimeleyo, indlela yesigaba solwelo lweketile enkulu iye yaphuhliswa ngokutsiba kunye neendlela, kwaye ineempawu zayo zobugcisa. Anxin chemistry isebenzisa inkqubo yokuvelisa HPMC yoqobo, hayi kuphela inkqubo yemveliso efanelekileyo, iparameters zolawulo ukusebenza ichanekile kwaye ithembekile, ukusetyenziswa ngokupheleleyo kunye nengqiqo izinto ekrwada kunye nezinye iimpawu, kunye isidanga replacement imveliso iyunifomu, ukusabela ngokucokisekileyo ngokupheleleyo, isisombululo elubala kakuhle, kwaye kwangaxeshanye ukuqinisekisa uzinzo umgangatho imveliso. Umgca wemveliso we-HPMC wamashishini athile uguqulelwe ngokuzenzekela, ukufezekisa iimfuno zolawulo oluzenzekelayo lwesixhobo se-DCS, izinto ezibandakanya ulwelo, izinto ekrwada eziqinileyo zingasetyenziselwa ukulinganisa ngokuchanekileyo kwaye ungeze inkqubo ye-DCS, ubushushu kunye nolawulo loxinzelelo kwinkqubo yokusabela zonke ziqatshelwe ulawulo oluzenzekelayo lwe-DCS kunye nokubekwa esweni okude, Ngokwemigaqo yokwenzeka, ukuthembeka, uzinzo kunye nokhuseleko lwemveliso, oko kunciphisa imo yemveli kuphela xa kuthelekiswa nemveliso yemveli, kuncitshiswe imowudi yemveli kuphela, kuphuculwe indoda. ubukhulu, kodwa ikwaphucula imeko-bume yokusebenza kwisiza.