Ngaba i-cellulose iwafunxa kakuhle amanzi?

I-Cellulose, eyona nto ininzi yezinto eziphilayo emhlabeni, ibonisa iimpawu eziphawulekayo, enye yazo kukukwazi ukufunxa amanzi.Olu hlobo lwe-hygroscopic lweselulosi lufumana ukusetyenziswa okubanzi kumashishini ahlukeneyo, ukusuka kwizinto ezilukiweyo ukuya kumayeza.Ukuqonda iindlela ezisemva kokufunxwa kwamanzi kwi-cellulose kubalulekile ekwandiseni ukusetyenziswa kwayo kwizicelo ezahlukeneyo.

Intshayelelo:

I-Cellulose, i-polysaccharide eyenziwe ngeeyunithi ze-glucose ezidityaniswe yi-β(1→4) ye-glycosidic bond, iyona nto isisiseko yeendonga zeeseli zesityalo.Ubuninzi bayo kwindalo, ukuhlaziya, kunye nokubola kwayo kuyenza ibe sisixhobo esinqweneleka kakhulu kwizicelo ezininzi zemizi-mveliso.Enye yezinto ezibangela umdla kwiselulosi kukukwazi ukufunxa amanzi kakuhle.Olu phawu lunempembelelo ebalulekileyo kwiinkalo ezahlukeneyo ezinje ngelaphu, ukwenza iphepha, ukutya, amayeza, kunye nebhayomaterials.Ukuqonda iindlela ezisisiseko sokuziphatha kokufunxwa kwamanzi kweselulosi kubalulekile ekusebenziseni amandla ayo apheleleyo kwezi zicelo.

Izinto eziPhembelela ukufunxwa kwamanzi yiSelulosi:

Zininzi izinto ezinefuthe kumthamo wokufunxa amanzi kwiselulosi:

Ubukhazikhazi: Ubume bekristale beselulosi buchaphazela kakhulu iimpawu zayo zokufunxa amanzi.Imimandla yeCrystalline ibonisa ukufunxwa kwamanzi okusezantsi xa kuthelekiswa nemimandla ye-amorphous ngenxa yokufikelela okuthintelweyo kwiimolekyuli zamanzi.

Ummandla ongaphezulu: Umphezulu wommandla weentsinga zeselulosi udlala indima ebalulekileyo ekufunxeni kwamanzi.Iselulosi eyahlulwe ngokucokisekileyo enommandla ophezulu womphezulu ithande ukufunxa amanzi amaninzi xa ithelekiswa nolwakhiwo lweselulosi enkulu.

I-Hydrophilicity: Amaqela e-Hydroxyl (-OH) akhoyo kwiimolekyuli ze-cellulose abanika i-hydrophilic, iququzelela ukufunxa kwamanzi ngokusebenzisa i-hydrogen bonding.

Iqondo lePolymerization: Iselulosi eneqondo eliphezulu lepolymerization ithande ukuba nomthamo ophezulu wokufunxa amanzi ngenxa yobukho bamaqela ehydroxyl angaphezulu kwiyunithi yobunzima.

Iqondo lobushushu kunye nokufuma okunxulumeneyo: Iimeko zokusingqongileyo ezifana neqondo lobushushu kunye nokufuma okunxulumeneyo zinefuthe kakhulu kwindlela i-cellulose efunxa ngayo amanzi.Amaqondo obushushu aphezulu kunye namaqondo okufuma ngokubanzi aphucula ukufunxwa kwamanzi ngenxa yokwanda kokushukuma kweeathom zamanzi.

Iindlela zokuBeka umlinganiswa:

Ubuchule obahlukeneyo busetyenziswa ukubonisa iimpawu zokufunxa amanzi kwiselulosi:

Uhlalutyo lwe-Gravimetric: Iindlela ze-Gravimetric zibandakanya ukulinganisa inzuzo yobunzima beesampuli ze-cellulose ekuvezweni kwamanzi ngokuhamba kwexesha.Oku kubonelela ngedatha yobungakanani bekinetics yokufunxa amanzi kunye nomxholo wokufuma olinganayo.

I-Fourier Transform Infrared Spectroscopy (FTIR): I-FTIR spectroscopy isetyenziselwa ukuhlalutya utshintsho kumaqela asebenzayo e-cellulose ekufunxeni kwamanzi.Ukutshintsha kwizikhundla eziphezulu kunye nokuqina kubonisa ukusebenzisana phakathi kwe-cellulose kunye ne-molecule yamanzi.

I-X-ray Diffraction (XRD): I-XRD isetyenziselwe ukuvavanya utshintsho kwicrystallinity ye-cellulose emva kokufunxwa kwamanzi.Ukuncipha kwesalathiso se-crystallinity kubonisa ukudumba kweefiber ze-cellulose ngenxa yokuthathwa kwamanzi.

Ukuskena i-Electron Microscopy (SEM): I-SEM ivumela ukubonwa kweenguqu ze-morphological kwimicu ye-cellulose ngaphambi nangemva kokungena kwamanzi.Inika ingqiqo kwingqibelelo yesakhiwo kunye ne-porosity yezinto ze-cellulose.

Ukusetyenziswa kweCellulose njengeMathiriyeli yeHygroscopic:

Ubume be-hygroscopic yeselulosi ifumana usetyenziso olwahlukeneyo kumashishini ahlukeneyo:

Iindwangu: Iifiber ezisekelwe kwi-cellulose ezifana nomqhaphu kunye ne-rayon zisetyenziswa kakhulu kwimveliso yempahla ngenxa yokukwazi ukufunxa ukufuma, ukunika induduzo kunye nokuphefumla kwempahla.

Ukwenza iphepha: Iintsinga ze-cellulose zisebenza njengeyona nto iphambili ekrwada kwimveliso yephepha.Iimpawu zabo zokufunxa amanzi zichaphazela umgangatho wephepha, ukuprintwa, kunye namandla.

Ishishini lokutya: I-cellulose ephuma kwi-cellulose efana ne-methylcellulose kunye ne-carboxymethylcellulose zisetyenziswa njengeejenti ezityebisayo, izinzisi, kunye ne-emulsifiers kwiimveliso zokutya.Umthamo wabo wokufunxa amanzi wongeza ukuthungwa kunye nokuzinza kobomi beshelufu.

I-Pharmaceuticals: I-excipients esekelwe kwi-cellulose isetyenziswa ngokuqhelekileyo kwimixube yamachiza ukuze bakwazi ukulawula ukukhutshwa kwechiza, ukuphucula ukuzinza, kunye nokuphucula i-bioavailability.Bakwanceda ekuqhekekeni nasekuchitheni iipilisi kunye nee-capsules.

I-Biomaterials: I-Cellulose hydrogels kunye neefilimu zivela njengezinto ezithembisayo ze-biomaterials kwizicelo ezahlukeneyo ze-biomedical, kubandakanywa ukuhanjiswa kweziyobisi, ubunjineli bezicubu kunye nokuphulukiswa kwesilonda.Umthamo wabo ophezulu wokufunxa amanzi wenza ukuba i-hydration esebenzayo kunye nokwanda kweeseli.

Ubuchule obumangalisayo becellulose bokufunxa amanzi buvela kubume bayo obukhethekileyo kunye neekhemikhali.Ukuqonda izinto ezichaphazela ukufunxwa kwamanzi, iindlela zokulinganisa, kunye nokusetyenziswa kweselulosi njengesixhobo se-hygroscopic kubalulekile ekuphuculeni ukusetyenziswa kwayo kumashishini ahlukeneyo.Uphando oluqhubekayo kulo mmandla luya kwandisa ngakumbi uluhlu lwezicelo kwaye lube negalelo kuphuhliso lwemathiriyeli ezinzileyo kunye neepropati zokusebenza eziphuculweyo.