I-SelesUlose ees yiklasi enomdla yezinto ezivunyiweyo ezivela kwi-seluplose, enye yezona golymes zendalo emhlabeni. Ezi zinto ziguquguqukayo zifumana izicelo kumashishini ahlukeneyo, kubandakanya amayeza, ukutya, i-cosmetics, yokwakha, kunye nezixhobo, ngenxa yeepropathi zabo ezahlukileyo kunye nokusebenza.
I-1. Ulwakhiwo kunye neepropathi zeSellUlose:
I-sellyulose yinto ye-polysaccharide equka imixokelelwane emide ye-Glucose idityaniswe kunye β (1 → 4) Glycosidic Bonds. Iiyunithi eziphindayo eziphindayo ze-glucose zibonelela nge-selllulose kunye ne-commar kunye nesakhiwo esingqongqo. Olu lungiselelo lolwakhiwo luphumela kwi-hydrogen eyomeleleyo phakathi kweenqanawa ezikufuphi, negalelo kwizikhundla ezibalaseleyo zeselulose.
Amaqela e-hydroxyl (-----) Nangona kunjalo, i-seluplose ibonisa ukungakhathali okungapheliyo kwezona zinto ziphilayo ngenxa yenethiwekhi ye-hydrogen ye-hydrogen ye-hydrogen ye-hydrogen.
2. INTSHAYELELO KWI-Selesese
I-Selessulose eves ikhuphe i-sellulose apho ezinye ii-hydroxyl zingene endaweni yamaqela e-ether (-or), apho imele izinto ezahlukeneyo zezinto eziphilayo. Olu hlengahlengiso lutshintsha iipropathi ze-seluplose, zenza ukuba inyibilikiswe ngaphezulu kwamanzi kunye nezinyibilikisi zezinto eziphilayo ngelixa zigcina ezinye zeempawu zayo zemvelo, ezinjengokungabinaboni kunye nokungabinamandla.
3. I-synthesis ye-seluplose
I-synthesis ye-synthelose yeeleathi zibandakanya ukuthunyelwa kwe-ether i-seluplose hydroxyl amaqela ahlukeneyo aphantsi kweemeko ezilawulwayo. I-regents eqhelekileyo esetyenziselwa i-etherhesition ibandakanya i-alkyl Hallides, Alkyene Oxide, kunye ne-alkyl Halides. Iimeko zokuphendula ezifana nobushushu, inyibilikisi, kunye ne-Catalysds zidlala indima ebalulekileyo ekumiseleni inqanaba lokufakelwa endaweni yokufakwa endaweni (DS) kunye neepropathi zeseluplose.
4. Iindidi zeSelesese
I-Selessulose Talsulose Talsul inokuhlelwa ngokusekwe kuhlobo lweendawo ezinokuthathelwa ingqalelo kumaqela e-hydroxyl. Ezinye zezona zisetyenziswayo zisetyenziswa kakhulu zibandakanya:
I-Methyl Selelose (MC)
I-Hydroxypropyl seluplose (HPC)
I-HYDROXYTYL ILANDILONE (Hec)
Ethyl hydroxyyl seluplose (EIC)
I-Carboxymethyl Selelose (CMC)
Uhlobo ngalunye lwe-Selersese i-ETE ibonisa iipropathi ezizodwa kwaye ilungele izicelo ezithile ngokuxhomekeke kwisakhiwo sekhemikhali kunye nesidanga sokufaka endaweni.
I-5. Iipropathi kunye nokusetyenziswa kweselselese
I-Seleulose enina inika uluhlu olubanzi lwepropathi eyiyo ebangela ukuba babe nakho kumashishini ahlukeneyo:
Ukutyibilika kunye nokuzinza: I-Selese isetyenziswa ngokubanzi njenge-thi chuiners kunye nokuzinzisa ekutyeni, amayeza, kunye neemveliso zononophelo lomntu. Baphucula i-viscofity kunye neepropathi ze-subological yezisombululo kunye ne-eulsions, ukuphucula uzinzo lwemveliso kunye nokuhlengahlengiswa.
Ukuqulunqwa kwefilimu: Selese Teluplose edade unokwenza iifilimu eziguqukayo nezingabonakaliyo xa zisasazwa emanzini okanye kwiminyibilikisi yendalo. Ezi filimu zifumana izicelo kwi-carks, ukupakisha, kunye neenkqubo zokuhambisa iziyobisi.
Ukugcinwa kwamanzi: Uhlobo lwe-hydrophilic ye-seluplose e-Selease ibangela ukuba bafumane kwaye bagcine amanzi, bebenza iizongezo ezixabisekileyo kwizixhobo zokwakha ezinje ngemveliso, udaka, kunye neemveliso zeGyppum. Baphucula ukusebenza, ukubambelela, kunye nokuqina kwezi zinto.
Ukuhanjiswa kweziyobisi: I-Selessese isetyenziswe kwiifomu zamayeza njengezinxulumene nokulawula ukukhutshwa kweziyobisi, ukuphucula i-bioaasusfiy, kunye ne-odors engathandekiyo okanye i-odors. Ziqhelekile kwiitafile, iicapbules, ioyile, kunye nokumiswa.
Ukulungiswa okungaphezulu: I-Selese Teluplose i iguqulwe ngokukhawuleza ukwazisa amaqela asebenzayo anikezela iipropathi ezithile ezinje ngomsebenzi we-antimicrobial, okanye ukulungiswa kwelangatye. Ezi ziSelsulose eziguqulweyo kuthunyelwa kwiinkqubo zemveliso ekhethekileyo, amabali, kunye nezixhobo zebhayoloji.
6. Impembelelo yokusingqongileyo kunye nokuzinza:
I-Selessulose Talsul isuselwa kwizibonelelo ezihlaziyiweyo ezinje nge-pulp, umqhaphu, okanye ezinye iintsinga zezityalo, zibenza bazinze ngokusemandleni. Ngaphaya koko, banobungozi kwaye banganetyhefu, babeka emngciphekweni omncinci wokusingqongileyo xa kuthelekiswa ne-polymers yokwenziwa. Nangona kunjalo, i-synthesis ye-seluplose en zinokubandakanya ukuphendula kweekhemikhali ezifuna ulawulo ngononophelo ukunciphisa inkunkuma kunye nokusetyenziswa kwamandla.
7. Imbono yexesha elizayo:
Ibango le-seluplose eTSute, kulindeleke ukuba iqhubeke ngokukhula ngenxa yepropathi yawo yokuhambelanayo kunye nendalo. Iinzame zophando eziqhubekayo zigxile ekuphuhliseni ii-noovel seleves ezinokuphuculwa ukusebenza, ukuphuculwa kwenkqubo, kunye nokulungelelaniswa kwepropathi yezicelo ezithile. Ngaphaya koko, ukudityaniswa kweTelelose eNesupegies ezikhulayo ezinjengokushicilelwa kwe-3D, i-Nanocoms, kunye neZixhobo zeBiomedical, kunye nezixhobo ze-biomedical zithembisekile ukwandisa izixhobo zabo kunye nokufikelela kwizinto ezifumanekayo.
I-Seleculose e kanith imela iklasi ebalulekileyo yezinto ezikhompyutheni ezinemizi-nkqubela ezahlukileyo zokususela kumashishini amaninzi amaninzi. Ukudityaniswa kwabo okhethekileyo kweepropathi, i-biodegradiance, kunye nokuzinza kwenza izithako ezibonakalayo kuluhlu olubanzi lweemveliso kunye neenkqubo. Ukuqhubeka kwe-Innovation kwi-chele ye-cleysese ether kunye netekhnoloji ilungele ukuqhuba phambili phambili kunye nokuvula amathuba amatsha kwiminyaka ezayo.
IXESHA LOKUQALA: APR-18 ukuya kwi-2024