Adsorption ndiko kunamatira kweiyoni kana mamorekuru pamusoro pechimwe chikamu.Adsorption inogona kuitika kuburikidza ne physisorption uye chemisorption.Ioni nemamorekuru anogona kushambadza kune akawanda marudzi enzvimbo zvinosanganisira mapolymer.A polymer imorekuru hombe rinoumbwa neanodzokorora ma subunits akasungwa pamwechete nema covalent bond.Iyo adsorption yeion uye mamorekuru kune polymer nzvimbo inoita basa mune akawanda maapplication anosanganisira: biomedical, dhizaini, uye machira.
Implant Coatings
Protein-resistant coatings:Protein adsorption inokanganisa kudyidzana kunoitika patishu-implant interface.Protein adsorption inogona kutungamirira kukuvhara ropa, mhinduro yekunze-yemuviri uye pakupedzisira kuderedzwa kwechigadzirwa.Kuitira kupokana-kuita mhedzisiro yeprotein adsorption, maimplants anowanzo kuputirwa nepolymer coating kudzikisa protein adsorption.
Polyethylene glycol (PEG) machira akaratidzwa kuderedza mapuroteni adsorption mumuviri.Iyo PEG coating ine hydrophilic mamorekuru anosemesa kuprotein adsorption.Mapuroteni anosanganisira hydrophobic mamorekuru uye nzvimbo dzekuchaja dzinoda kusunga kune mamwe ma hydrophobic mamorekuru uye nzvimbo dzakapokana.Nekushandisa iyo yakaonda monolayer coating yePEG, protein adsorption inodzivirirwa panzvimbo yemuchina.Uyezve, kuramba kwechigadzirwa kuprotein adsorption, fibroblast adhesion uye kunamatira kwebhakitiriya kunowedzerwa.
Antithrombogenic coatings:Iyo hemocompatability yechishandiso chekurapa zvinoenderana nepamusoro pechaji, simba uye topography.Zvishandiso zvinotadza kuve hemocompatabile zvinomhanyisa njodzi yekugadzira thrombus, kuwanda uye kukanganisa immune system.Polymer coatings inoiswa kune zvishandiso kuwedzera kwavo hemocompatability.Makemikari cascades anotungamirira pakuumbwa kwefibrous clots.Nekusarudza kushandisa hydrophilic polymer coatings, protein adsorption inodzikira uye mukana wekusangana kwakashata neropa unodzikira zvakare.Imwe yakadaro polymer coating iyo inowedzera hemocompatability ndeye heparin.Heparin ndeye polymer coating iyo inopindirana ne thrombin kudzivirira coagulation.Heparin yakaratidzwa kudzvinyirira platelet adhesion, inoenderana activation uye protein adsorption.
Structural
Yepamberi polymer composites:Advanced polymer composites anoshandiswa mukusimbisa uye kugadzirisa kwezvivakwa zvekare.Aya macomposites epamberi anogona kugadzirwa uchishandisa nzira dzakawanda dzakasiyana dzinosanganisira prepreg, resin, infusion, filament winding uye pultrusion.Yepamberi polymer macomposites anoshandiswa mune dzakawanda zvimiro zvendege uye musika wavo mukuru uri mune aerospace nekudzivirira.
Fiber yakasimbiswa polymers:Fiber-reinforced polymers (FRP) inowanzoshandiswa nemainjiniya ehurumende muzvimiro zvavo.FRPs inopindura mutsara-elastically kune axial stress, ichivaita chinhu chikuru chekubata mutoro.MaFRPs anowanzo kuve mukugadzirwa kwelaminate nelamina yega yega ine unidirectional fibers, kazhinji kabhoni kana girazi, yakaiswa mukati mechikamu chechiedza chepolymer matrix zvinhu.MaFRP ane kupokana kukuru kunopesana nekuratidzwa kwezvakatipoteredza uye kusimba kukuru.
Polytetrafluoroethylene:Polytetrafluoroethylene (PTFE) ipolymer inoshandiswa muzvishandiso zvakawanda zvinosanganisira mabhanhire asina-tsvimbo, zvigadzirwa zvekunaka, uye mafuta ekuzora.PTFE ihydrophobic molecule inoumbwa nekabhoni uye fluorine.Carbon-fluorine bonds inokonzera PTFE kuti ive yakaderera-friction material, inobatsira munzvimbo dzekushisa kwepamusoro uye inopesana nekushungurudzika kwekuputika.Zvivakwa izvi zvinoita kuti PTFE isashande uye ishandiswe muhuwandu hwakawanda hwekushandisa.
Polymer adsorption mune porous media:Muviri adsorption uye mechaniki entrapment zvikonzero zviviri zvikuru zvepolymer kuchengetwa mune porous media.Kuchengetwa kwakaderera kwepolymer mudura kwakakosha pakubudirira kwepolymer EOR mashandiro.
Nguva yekutumira: Dec-18-2018