Malunga neCellulose
I-Cellulose yi-polysaccharide enkulu eyenziwe yi-glucose. Ifumaneka ngobuninzi kwizityalo eziluhlaza nakwizinto eziphilayo zaselwandle. Yeyona nto isasazwa kakhulu kwaye yeyona nto inkulu yendalo ye-polymer kwindalo. Inokusebenzisana kakuhle kwezinto eziphilayo, ivuseleleka kwaye iyabola kunye nezinye iingenelo. Ngokusebenzisa i-photosynthesis, izityalo zinokuvelisa amakhulu ezigidi zeetoni ze-cellulose minyaka le.
Amathuba okusetyenziswa kweCellulose
I-cellulose yendabuko inciphise ukusetyenziswa kwayo ngokubanzi ngenxa yeempawu zayo zomzimba nezekhemikhali, ngelixa i-cellulose yezinto ze-polymer zendalo zineempawu ezahlukeneyo zokusebenza emva kokucutshungulwa nokuguqulwa, ezinokuhlangabezana neemfuno ezahlukeneyo zamashishini ahlukeneyo. Ukusetyenziswa okusebenzayo kwezinto ze-cellulose kuye kwaba yindlela yendalo yophuhliso kunye neendawo eziphambili zophando lwezinto ze-polymer.
Ii-cellulose derivatives ziveliswa yi-esterification okanye i-etherification yamaqela e-hydroxyl kwii-polymers ze-cellulose ezinee-reagents zeekhemikhali. Ngokweempawu zesakhiwo seemveliso ze-reaction, ii-cellulose derivatives zinokwahlulwa zibe ziindidi ezintathu: ii-cellulose ethers, ii-cellulose esters, kunye nee-cellulose ether esters.
1. I-ether yeseli
I-Cellulose ether ligama eliqhelekileyo loluhlu lwee-cellulose derivatives ezenziwe yi-reaction ye-alkali cellulose kunye ne-etherifying agent phantsi kweemeko ezithile. I-Cellulose ether luhlobo lwe-cellulose derivative eneentlobo ezahlukeneyo, amasimi okusetyenziswa abanzi, umthamo omkhulu wemveliso kunye nexabiso eliphezulu lophando. Ukusetyenziswa kwayo kubandakanya amasimi amaninzi afana neshishini, ezolimo, ishishini leekhemikhali zemihla ngemihla, ukhuseleko lokusingqongileyo, i-aerospace kunye nokhuselo lwesizwe.
Ii-cellulose ethers ezisetyenziswa ngorhwebo zezi: i-methyl cellulose, i-carboxymethyl cellulose, i-ethyl cellulose, i-hydroxyethyl cellulose, i-cyanoethyl cellulose, i-hydroxypropyl cellulose kunye ne-hydroxypropyl methylcellulose Cellulose njl.
2. I-ester yeseli
Ii-ester ze-cellulose zisetyenziswa kakhulu kwicandelo lokhuselo lwesizwe, ishishini leekhemikhali, ibhayoloji, amayeza, ulwakhiwo kwanakwiinqwelomoya.
Ii-ester ze-cellulose ezisetyenziswa ezorhwebo zezi: i-cellulose nitrate, i-cellulose acetate, i-cellulose acetate butyrate kunye ne-cellulose xanthate.
3. I-ester ye-cellulose ether
Ii-ester ze-cellulose ether zii-ester-ether ezixutyiweyo.
Intsimi yesicelo:
1. Intsimi yamayeza
I-Cellulose ether kunye ne-ester derivatives zisetyenziswa kakhulu kwezonyango ukuze ziqine, zikhuphe izinto ezincedisayo, zikhuphe izinto ezihlala ixesha elide, zikhuphe izinto ezilawulwayo, zenze ifilimu nezinye iinjongo.
2. Intsimi yokwaleka
Ii-ester ze-cellulose zidlala indima ebaluleke kakhulu ekusetyenzisweni kokugquma.Ii-esters ze-cellulosezisetyenziswa kwii-binders, ii-resin ezilungisiweyo okanye izinto ezenziwe ngaphambi kwefilimu ukubonelela ngeengubo ezineempawu ezininzi ezintle.
3. Intsimi yetekhnoloji ye-membrane
Izinto ze-cellulose kunye nezinto eziphuma kuzo zinezibonelelo zokukhupha okukhulu, ukusebenza okuzinzileyo, kunye nokusebenziseka kwakhona. Ngokusebenzisa ukuhlanganiswa ngokwamaleko, indlela yokuguqula isigaba, iteknoloji yokujikeleza nge-electro kunye nezinye iindlela, izinto ze-membrane ezinentsebenzo entle yokwahlulahlula zinokulungiswa. Kwicandelo leteknoloji ye-membrane zisetyenziswa kakhulu.
4. Icandelo lokwakha
Ii-ether ze-cellulose zinamandla aphezulu e-gel aguqulwayo ngokobushushu kwaye ngenxa yoko ziluncedo njengezongezo kwizinto zokwakha, ezifana nezongezo zethayile ezinamathelayo ezisekelwe kwisamente.
5. Inqwelo-moya, izithuthi zamandla ezintsha kunye nezixhobo ze-elektroniki ezikumgangatho ophezulu
Izixhobo ze-optoelectronic ezisebenzayo ezisekelwe kwi-cellulose zingasetyenziswa kwi-aerospace, kwizithuthi zamandla amatsha nakwizixhobo ze-elektroniki eziphezulu.
Ixesha leposi: Epreli-25-2024