Indlela yokwahlula ijeli yokwahlula i-serum kunye namahlule egazi

Inkqubo yeijeli yokwahlula

Ijeli yokwahlula i-serum yenziwe nge-hydrophobic organic compounds kunye ne-silica powder.I-mucus colloid ye-thixotropic.Isakhiwo sayo siqulethe inani elikhulu leebhondi ze-hydrogen.Ngenxa yombutho weebhondi ze-hydrogen, isakhiwo sothungelwano senziwe.Ngaphantsi kwesenzo samandla e-centrifugal, isakhiwo senethiwekhi sichithwa kwaye sitshintshiwe.Kwi-fluid ene-viscosity ephantsi, xa i-centrifugal force iyanyamalala, yenza kwakhona isakhiwo senethiwekhi, esibizwa ngokuba yi-thixotropy.Oko kukuthi, phantsi kwemeko yokushisa okungapheliyo, amandla athile omatshini asetyenziswa kwi-mucus colloid, enokutshintsha ukusuka kwi-high-viscosity gel state ukuya kwi-low-viscosity sol state, kwaye ukuba amandla omatshini ayanyamalala, uya kubuya kwakhona. ijeli yejeli ye-high-viscosity yasekuqaleni.I-phenomenon ye-gel kunye ne-sol interconversion evela kwisenzo samandla omatshini yaqanjwa ngokuthi yiFreundlich kunye nePetrifi.Kutheni ukusebenzisana phakathi kwejeli kunye ne-sol kwenzeka ngenxa yesenzo samandla omatshini?Thixotropy kungenxa yokuba ukwakhiwa kwejeli yokwahlula kuqulethe inani elikhulu lezakhiwo ze-hydrogen bond network.Ngokukodwa, ibhondi ye-hydrogen ayenzi nje kuphela ibhondi enye edibeneyo, kodwa iphinda yenza ibhondi ye-hydrogen ebuthathaka kunye nezinye iimolekyuli ezihlawuliswa kakubi phantsi kweemeko ezithile.Kwiqondo lobushushu begumbi, ibhondi ye-hydrogen kulula ukunqunyulwa ukuze ibangele ukuhlangana kwakhona.I-silica surface inamaqela e-silyl hydroxyl (i-SiOH) ukwenza i-SiO i-molecular aggregates (iinqununu eziphambili), ezidityaniswe ngamabhondi e-hydrogen ukuze zenze iinqununu ezinjenge-chain.Amasuntswana e-silica ekhonkco kunye namasuntswana e-hydrophobic organic compound ebandakanya ijeli eyahlulayo iqhubela phambili ukwenza iibhondi ze-hydrogen ukuvelisa ulwakhiwo lwenethiwekhi kwaye zenze iimolekyuli zegel kunye nethixotropy.

Ubunzima obuthile be-gel yokwahlula bugcinwa kwi-1.05, ubunzima obuthile be-serum bu malunga ne-1.02, kunye nobukhulu obuthile be-blood clot malunga ne-1.08.Xa i-gel yokwahlula kunye negazi elidibeneyo ligxininiswe kwi-tube efanayo yokuvavanya, i-hydrogen chain network structure kwi-silica aggregate ibangelwa amandla e-centrifugal asetyenziswe kwijeli yokwahlula.Emva kokutshatyalaliswa, iba yinkqubo efana nekhonkco, kwaye i-gel yokwahlula iba yinto ene-viscosity ephantsi.I-blood clot inzima kunokuba i-gel yokwahlula ihambela phantsi kombhobho, kwaye i-gel yokwahlula ijika ijika, yenze iindidi ezintathu ze-blood clot / i-gel eyahlulayo / i-serum phantsi kombhobho.Xa i-centrifuge iyeka ukujikeleza kwaye ilahlekelwa amandla e-centrifugal, amasuntswana e-silica aggregates kwijeli yokwahlukana enza isakhiwo sothungelwano kwakhona ngamabhondi e-hydrogen, abuyisele imeko yejeli ye-viscosity ephezulu, kwaye enze umaleko wokuhlukanisa phakathi kwamahlwili egazi serum.