Adsorption shine mannewar ions ko kwayoyin halitta akan saman wani lokaci.Adsorption na iya faruwa ta hanyar physisorption da chemisorption.Ions da kwayoyin halitta na iya haɗawa da nau'ikan saman sama da yawa gami da saman polymer.Polymer wani babban kwayoyin halitta ne wanda ya ƙunshi maimaita subunits da aka haɗa tare ta hanyar haɗin gwiwa.Adsorption na ions da kwayoyin halitta zuwa saman polymer suna taka rawa a aikace-aikace da yawa ciki har da: biomedical, structural, and coatings.
Rubutun Shuka
Rubutun masu juriya na furotin:Protein adsorption yana rinjayar hulɗar da ke faruwa a wurin da ake dasa nama.Protein adsorption zai iya haifar da gudan jini, amsawar jikin waje da kuma lalata na'urar.Don magance tasirin tallan furotin, sau da yawa ana rufe abubuwan da aka saka tare da murfin polymer don rage tallan furotin.
An nuna suturar polyethylene glycol (PEG) don rage girman adsorption na furotin a cikin jiki.Rufin PEG ya ƙunshi ƙwayoyin hydrophilic waɗanda ke ƙin tallan furotin.Sunadaran sun ƙunshi ƙwayoyin hydrophobic da wuraren caji waɗanda suke so su ɗaure ga wasu ƙwayoyin hydrophobic da wuraren da aka caje.Ta hanyar amfani da murfin monolayer na bakin ciki na PEG, ana hana tallan furotin a wurin na'urar.Bugu da ƙari kuma, juriya na na'urar don tallan furotin, mannewar fibroblast da mannewar ƙwayoyin cuta yana ƙaruwa.
Magungunan Antithrombogenic:Hemocompatability na na'urar likita ya dogara ne akan cajin saman ƙasa, kuzari da yanayin ƙasa.Na'urorin da suka kasa zama hemocompatabile suna fuskantar haɗarin haifar da thrombus, yaduwa da kuma lalata tsarin rigakafi.Ana amfani da suturar polymer a kan na'urori don ƙara ƙarfin haemocompatability.Sinadaran cascades kai ga samuwar fibrous clots.Ta hanyar zaɓar yin amfani da suturar polymer hydrophilic, tallan furotin yana raguwa kuma damar yin mu'amala mara kyau tare da jini yana raguwa kuma.Ɗaya daga cikin irin wannan rufin polymer wanda ke ƙara haɓaka hemocompatability shine heparin.Heparin shine murfin polymer wanda ke hulɗa tare da thrombin don hana coagulation.An nuna Heparin don kawar da mannewar platelet, kunna kunnawa da tallan furotin.
Tsarin tsari
Nagartattun kayan aikin polymer:Ana amfani da ƙwararrun ƙwararrun polymer a cikin ƙarfafawa da gyara tsoffin sifofi.Ana iya yin waɗannan abubuwan haɓakawa na ci gaba ta amfani da hanyoyi daban-daban waɗanda suka haɗa da prepreg, resin, jiko, iska na filament da pultrusion.Ana amfani da ingantattun abubuwan haɗin gwiwar polymer a yawancin tsarin jirgin sama kuma babbar kasuwarsu tana cikin sararin samaniya da tsaro.
Fiber ƙarfafa polymers:Injiniyoyi masu ƙarfafa fiber (FRP) galibi injiniyoyi ne ke amfani da su a cikin tsarin su.FRPs suna amsa layin layi-lastically zuwa damuwa axial, yana mai da su babban abu don ɗaukar kaya.FRPs yawanci suna cikin samuwar laminate tare da kowane lamina yana da filaye na unidirectional, yawanci carbon ko gilashi, wanda aka haɗa a cikin wani Layer na kayan matrix polymer.FRPs suna da babban juriya ga bayyanar muhalli da kuma tsayin daka.
Polytetrafluoroethylene:PolytetrafluoroethylenePTFE) polymer ne da aka yi amfani da shi a yawancin aikace-aikace ciki har da suturar da ba ta da sanda, kayan ado, da man shafawa.PTFE kwayoyin halitta ne na hydrophobic wanda ya hada da carbon da fluorine.Abubuwan haɗin carbon-fluorine suna haifar da PTFE ya zama abu mara ƙarfi, mai dacewa a cikin yanayin zafin jiki mai ƙarfi da juriya ga fashewar damuwa.Waɗannan kaddarorin suna sa PTFE ta zama marasa amsawa kuma ana amfani da su a cikin tsararrun aikace-aikace.
Polymer adsorption a cikin m kafofin watsa labarai:Adsorption na jiki da kuma ɗamarar inji sune manyan dalilai guda biyu na riƙewar polymer a cikin kafofin watsa labarai mara ƙarfi.Ƙananan riƙewar polymer a cikin tafki yana da mahimmanci ga nasarar aikin polymer EOR.
Lokacin aikawa: Dec-18-2018