Ngaba i-hydroxyythl seluplose ipolymer?

I-HydroxyEtheetheetheetheetheetheetheetheethl seluplose (hec) yi-polymer eneneni. Ukuze sikuqonde ngokupheleleyo oku, kufuneka siphonononge iikhonsepthi ezisisiseko ze-polymers, isakhiwo seselselse kunye ne-synthetives, i-synthestis kunye neepropathi ze-hydroxyyethyl selliese, kunye nezicelo zayo.

1. Iikhonsepthi ezisisiseko zePolymers

I-Polymers ziikhonkco ze-macromolecular ezenziwe linani elikhulu leeyunithi eziphindaphindayo (ezibizwa ngokuba zii-monomers) ezidityaniswe ngamaqhina emichiza. Ezi monomers zenza izakhiwo ze-chain ze-channeres, ukunika i-polymers eyahlukileyo yomzimba kunye neekhemikhali. Ngokwemithombo yabo, ii-polymers zinokwahlulwa zibe yi-polymers yendalo kunye ne-polymers yokwenziwa. I-polymers yendalo ibandakanya iseluplose, iprotein, kunye nerabha yendalo; I-polymers yokwenziwa ibandakanya i-polyethylene, i-polystyrene, kunye ne-polyvinyl chloride.

2. I-seluplose kunye nesakhiwo sayo

I-seluplose yeyona nto ininzi ye-polymer yendalo, ikakhulu ifumaneka kwiindonga zeseli zezityalo. I-seluplose yi-Polysaccharide eqokelelwe i-β-dlucose yunity therper the (1 → 4) i-glycosidic binds, kunye ne-crystallinity ephezulu kunye nesakhiwo esiphezulu. Ngenxa yeeyunithi zayo eziphindaphindiweyo ze-glucose, seluplose uqobo yi-polymer yendalo.

I-3. Synthesis kunye nolwakhiwo lwe-hydroxyythl seluplose

I-HydroxyEtheetheetheetheetheetheetheetheetheetheethl seluplose kukukhupha i-sellyulose, efunyenweyo ngokwazisa i-hydroxythyl (-Ch₂ch₂oh) izinto ezingenayo kwi-selsulose chain. Ngokukodwa, iseluplose iphinda iphendule nge-Ethyl ChloroOcetate okanye isisombululo se-chlororocetate phantsi kweemeko ze-alkaline ukuvelisa i-hydroxyyl sellyulose.

Ngolwakhiwo, i-hydroxyythl seluplose isasalela ubume obude baseLweeli, oko kukuthi, i-chain ephambili yenani elikhulu leeyunithi eziphindaphindiweyo ze-glucose. Nangona kunjalo, amanye amaqela e-hydroxyl athatyathwa ngamaqela e-hydroxyyl, kwaye olu tshintsho lwenza isolula kunye neempawu ze-viscosity ezahlukeneyo zahlukile kwezi ziselutase. Ngaphandle kokuqaliswa kwezinto, i-hydroxythy selliese iseyinxalenye ephezulu yemolekyuli, kwaye isakhiwo sayo semolekyuli sinamacandelo aphindiweyo, ngoko ke idibana nenkcazo yePolymer.

4. Iipropathi ze-hydroxyythl seluplose

Njenge-polymer, i-hydroxyyl seluplose ineepropathi eziqhelekileyo zePolymer ngolu hlobo lulandelayo:

Ubunzima obuphezulu bemolekyuli: Ubunzima bemoyarund ye-hydroxyythl isellielse ihlala phakathi kwamakhulu amawaka kunye nezigidi zeDaltons, ebonisa iimpawu ezicacileyo zePolymer.

Iipropathi zesisombululo: I-HydroxyEtheetheetheetheetheetheetheetheetheetheeth ingenza isisombululo se-colloidal ye-colloidal kumanzi abandayo ashushu. Uhlobo lwesisombululo sayo luhambelana nobunzima bemolekyuli kunye nesidanga sokufaka endaweni. Le ndawo ibaluleke kakhulu kwizicelo ezininzi.

UThermosensity: Uhlobo lwe-viscosity ye-Hydroxythyl Isuti yokutshintsha i-Colue kunye neqondo lobushushu, ebonisa i-thermosensity, eyipropathi eqhelekileyo yezisombululo zepolymer.

Ubuchule bokwenza ifilimu: Ngenxa yokufakelwa kwemveliso kunye nokusebenzisana namakhonkco ayo ePolymer, i-HydroxyEtheetheetheetheetheetheetheetheetheetheetheetheethl inokwenza ubume benethiwekhi esizinzileyo kwisisombululo, ukubakho kwefiliki kunye nefilimu.

V. Ukusetyenziswa kwe-hydroxyylyl seluplose

Ngenxa yepropathi yayo eyahlukileyo ye-polymer, i-hydroxyythl selliese isetyenziswe ngokubanzi kumasimi amaninzi. Oku kulandelayo zizicelo eziqhelekileyo:

Izinto zokwakha: Njengesamente iyongezelelo, i-HydroxyEtheetheetheetheetheetheetheetheetheetheetheetheetheents inokuphucula ukugcinwa kwamanzi kunye nokugcinwa kwamanzi kwi-slomes yesamente kunye nokuphucula ukusebenza kwesakhiwo.

I-Pooaskis kunye nepeyinti: Kwingubo, i-HEC isetyenziswa njenge-thi chucker, i-stabilizer kunye ne-arhente yokwakha ifilimu ukuphucula umlinganiso kunye nokugungqa kwengqumbo.

Iipaketives: Iipropathi zayo ezilungileyo zenza ukuba icandelo elibalulekileyo ekwenzeni okunamathela.

I-Papermicking Ishishini: I-HEC isetyenziswa ekuphuculeni okukuko kunye nokulungisa ukuphucula umhlaba ogudileyo kunye neepropathi zephepha.

I-cosmetics: hec isetyenziswa ngokubanzi kwi-ostings, amazinyo kunye neemveliso zonyango.

Ezi zicelo zisebenzisa ithuba leepropathi zePolymer ze-Hydroxyteetheetheethy, ezinje nge-viscofity ephezulu, iiprofayili zokwenza ifilimu kunye nozinzo, ibonisa ukusebenza kwayo kunye nokubaluleka kwayo njengePolymer.

I-HydroxyEtheetheetheetheetheetheetheetheetheetheetheethl ye-polymer ifunyenwe ngokutshintsha kweekhemikhali kwesellum. Isakhiwo sayo semolekyuli sinenani elikhulu leeyunithi eziphindaphindiweyo ze-glucose, ezisagcina iimpawu zobunzima bemolekyuli ephakamileyo kunye ne-chain emva kokufakwa kwe-hydroxyteetl. I-HydroxyEtheetheetheetheetheetheetheetheetheetheethl ibonisa iipropathi eziqhelekileyo zePolymer ezifana nokufakwa okuphezulu, iplastithi yesicombulo kunye nobuchule bokwenza ifilimu, kwaye zisetyenziswa ngokubanzi kumasimi amaninzi amashishini. Ke ngoko, kunokubethwa ngokucacileyo ukuba i-hydroxyEtheethy ye-polymer ebalulekileyo.