Kwiminyaka yakutshanje, ngokuphunyezwa kancinci kwemigaqo-nkqubo efanelekileyo yokulandela umxholo wophuhliso lwesayensi, udaka lwelizwe lam lijamelene nodaka oluxubeneyo, kwaye ukwakhiwa kome Ummiselo wodaka ungene kuphuhliso olukhawulezayo. umkhondo we.
Njengoko eyona nto ibaluleke kakhulu ekwakheni iimveliso ezixubileyo ezixubileyo, i-sell sether idlala indima ephambili kwintsebenzo kunye neendleko zodaka oluxubileyo. Zimbini iintlobo zeselpulose Talupe: Inye i-iodic, ezinje nge-sodium yebhokisi ye-sodium, i-cmc), kunye ne-methyl ye-ionic, i-HCDROXYETHL (HPMC), njl .
Okwangoku, uninzi lwezinto ezithengiswayo ze-Ether ye-Ether isetyenziswa kwizixhobo zokwakha. Ngophuhliso olukhawulezileyo lweshishini elixubileyo elixubeneyo, ilizwe lam SelelUlose i-Ether ifezekisiwe ngokusisiseko, kwaye imeko yeemveliso zangaphandle ezilawula intengiso yaphukile. Ngokwazi ukwanda kokusetyenziswa kodaka oluxubileyo, ilizwe lam liya kuba ngumoya omkhulu wehlabathi wodaka oluxubileyo, ukusetyenziswa kwe-selsulose i-ether kuya kwandiswa ngakumbi, kwaye iintlobo ezahlukeneyo zeentlobo ziya kwanda. Intsebenzo yemveliso ye-selsulose ether kwi-purr oxutyweyo ixubekiweyo iba lujoliso lwabavelisi kunye nabasebenzisi.
Elona mpahla libalulekileyo le-seluplose i-ether kukugcinwa kwawo amanzi. Ngaphandle kongezwa kwe-selsulose ether, umaleko omncinci owomileyo owomileyo waphuma ngokukhawuleza ukuba isamente ayinakukhumbula ngendlela eqhelekileyo kunye nodaka alunakukhubaza. Kwangelo xesha, ukongezwa kwe-ether sete i-ete i-Eter yenza ukuba udaka luneplastiki elungileyo kunye nokuguquguquka, kwaye kuphucula amandla aphezulu kodaka. Makhe sithethe ngefuthe lokusebenzisa udaka oluxubileyo kwimveliso yemveliso ye-seluplose ether.
I-1. Ukulunga kweselphulose
Ukulunga kwe-Sete Ither ichaphazela ukuluka kwayo. Umzekelo, ukuthoba ubuhle be-seluplose i-ether, ngokukhawuleza kuyayinyibilika emanzini nasekuphuculeni ukusebenza kwendlela yokugcina amanzi. Ke ngoko, ukulunga kukaEterise Ertulose kufuneka kubendakanyiwe njengenye yeepropathi zayo zophando. Ngokubanzi, intsalela ye-SEEve ye-Selese Other toise dein i-0.212mm ayifanele ibe ngaphezulu kwe-8.0%.
2. Ukomisa inqanaba lokunciphisa umzimba
Ixabiso elomileyo lokunciphisa umzimba libhekisa kwipesenti yobunzima bezinto ezilahlekileyo kubunzima besampulu yentsusa xa i-Selese i-Ether yomiswe kubushushu obuthile. Kumgangatho othile we-eruplose Ether, inqanaba lokunciphisa umzimba liphezulu kakhulu, eliza kunciphisa umxholo wezithako ezisebenzayo kwi-Telulose Ether Mericas, kwaye inyuse iindleko zokuthenga. Ngokwesiqhelo, ilahleko yobunzima ekuyomiseni i-ether sether ayiphezulu kwe-6.0%.
I-3. I-Ash ye-Ashe yomxholo weSeluplose Ether
Kumgangatho othile we-seluplose i-ether, umxholo we-Ash uphakame kakhulu, oya kunciphisa umxholo izithako ezisebenzayo kwi-Telulose Ether kwaye uchaphazele isiphumo semisebenzi yesicelo. Umxholo we-ash ye-ash ye-seluplose i-ether ngumlinganiso obalulekileyo wokusebenza kwayo. Idityaniswe nemeko yangoku yemveliso yelizwe lethu le-Ish Sether, idla ngokuba yi-MC, i-HPMC, i-HMMC ayifanele idlule kwi-2,5% ye-hec sete ye-hec set.
I-4. I-Vilosity ye-Selese-Iter
Isiphumo samanzi kunye nesiphumo esihlekisayo se-ether iselutase ikakhulu ixhomekeke kwi-viscofity kunye nedosi ye-selsulose i-ether ngokwayo yongezwa kwi-cerry.
I-5. Ixabiso le-p ye-seluplose ether
I-viscosity ye-Ether ye-Ether I-Ether I-Eler I-Eler iya kuncitshiswa emva kokuba igcinwe kubushushu obuphezulu okanye ixesha elide, ngakumbi kwiimveliso ze-viscofity ephezulu, ke kufuneka ukunciphisa umda kwi-PH. Ngokubanzi, kuyacetyiswa ukuba ulawule i-PH ye-PH I-Teluplose Ether ukuya kwi-5-9.
I-6. Ukukhanya kokukhanya kweSelsulose Ether
Ukukhanya okugqithisileyo kwe-selsese i-Ether ichaphazela ukwenziwa kwayo isicelo kwizinto zokwakha. Ezona zinto ziphambili ezichaphazela ukukhanya okukhanyisa i-Telulose Ethe: (1) Umgangatho wezinto ezingafunekiyo; (2) Iziphumo ze-alkalition; (3) Inqanaba lenkqubo; (4) Umyinge weSolvent; (5) Iziphumo zokungathathi cala.
Ngokwesiphumo sokusetyenziswa, ukhanyiso ukutshintshwa kwe-ertulose ether akufuneki kungabi ngaphantsi kwe-80%.
7. Iqondo lokushisa le-gelsulose ether
I-Teluplose Ether isetyenziswa ikakhulu njenge-viscosifier, iarhente yokugcina amanzi kwiimveliso zesamente, ke i-viscosity kunye neqondo lobushushu le-gel zizinto ezibalulekileyo zokuphawula i-Telulose Ether. Iqondo lokushisa le-gel lisetyenziselwa ukumisela uhlobo lwe-seluplose ether, enxulumene nenqanaba lokufakwa kwenye i-selulose. Ukongeza, ityiwa kunye nokungcola kunokuchaphazela iqondo lobushushu le-gene. Xa ubushushu besisombululo buyanyuka, i-sellyuse polymer ngokuthe ngcembe iphulukana namanzi, kwaye i-viscosity yesisombululo iyancipha. Xa inqaku lejeli lifikelelwe, i-polymer ikhuphe ngokupheleleyo kwaye iyenza ijeli. Ke ngoko, kwiimveliso zesamente, ubushushu buhlala bulawulwa ngezantsi kweqondo lobushushu. Ngaphantsi kwale meko, iqondo lobushushu, eliphezulu i-viscofity kunye nefuthe elibonakalayo lokutsala nokugcinwa kwamanzi.
IXESHA LOKUQALA: NgoFebwe-10-2023