Isiphumo se-HEC kwi-Adhesion yokuGcoba

I-Hydroxyethyl cellulose (HEC)yipolymer engenakunyibilika emanzini. Isetyenziswa kakhulu kushishino lokugquma ngenxa yokunyibilika kwamanzi kakuhle, ukutyeba, iipropati zokwenza ifilimu kunye nomsebenzi ogqwesileyo womphezulu. Kwimixube yokugquma, i-HEC ayiboneleli nje kuphela ngeempawu ezifanelekileyo ze-rheological, kodwa ikwadlala indima ephambili ekunamatheleni kwezambatho.

1. Iimpawu zesakhiwo se-HEC

Iimolekyuli ze-HEC zenziwe ngeetsheyini ze-cellulose kunye nee-substituents ze-hydroxyethyl. Itsheyini yayo ye-cellulose inesakhiwo se-polyhydroxy, esinokwenza intsebenziswano enamandla nomphezulu we-substrate yokugquma ngeebhondi ze-hydrogen, ngaloo ndlela siphucula ukunamathela kwe-coating. Ukongeza, i-hydroxyethyl substituent kwi-molecule ye-AnxinCel®HEC yonyusa ukunyibilika kwamanzi, ivumela ukuba isasazeke ngokulinganayo kwi-coating, ngaloo ndlela iphucula umgangatho we-coating yokwenza ifilimu.

2. Indlela ye-HEC kwi-Adhesion yokuGcoba

I-HEC kwiingubo zokwaleka iphucula ukunamathela kweengubo ngokusebenzisa ezi ndlela zilandelayo:

Ukufuma okungcono komphezulu

I-HEC inomsebenzi omhle womphezulu, onokunciphisa uxinzelelo lomphezulu wengubo kwaye uphucule ukufuma kwengubo kumphezulu wengubo. Oku kufuma kwenza ukuba ingubo iqhagamshelane nomphezulu wengubo ngokusondeleyo, kunciphisa izikhewu kwindawo ejonge kuyo, ngaloo ndlela iphucula ukunamathelana phakathi kwengubo kunye nengubo.

Ukubopha nge-hydrogen kuphucula ukubopha phakathi kobuso

Amaqela e-hydroxyl kwiimolekyuli ze-HEC anokwenza iibhondi ze-hydrogen kunye namaqela asebenzayo e-polar kumphezulu we-substrate (njengomthi, iglasi, isinyithi, njl.njl.). Esi siphumo siphucula ukubopha okubonakalayo phakathi kwengubo kunye ne-substrate, okwenza ukuba ingubo ingabi nakwenzeka ukuba ikrazuke phantsi kwamandla angaphandle.

Ulawulo lwepropathi ye-Rheological

I-HEC inempembelelo ebalulekileyo ekulawuleni iimpawu ze-rheological zengubo, inciphisa ukunyibilika kwayo ngokwandisa ingubo kwaye ithintele ukugoba okugqithisileyo kwengubo kumphezulu we-substrate. Le propati inceda ingubo ukuba yenze ifilimu efanayo kumphezulu we-substrate kwaye inciphise ukuncipha kokunamathela okubangelwa bubukhulu befilimu obungalinganiyo.

Isiphumo soncedo lokwenza ifilimu

I-HEC inokuphucula umgangatho wokwenza ifilimu ngexesha lenkqubo yokwenza ifilimu, iqinisekisa ukuba i-coating iyaqhubeka kwaye iyafana emva kokuba yomile. Oku kufana kunciphisa iindawo ezineziphene ze-coating, ngaloo ndlela kuphucula ukunamathelana ngokubanzi.

3. Imizekelo yezicelo ze-HEC kwiingubo ezahlukeneyo

Iingubo zoyilo eziqhutywa ngamanzi

Kwizinto zokwambathisa izakhiwo, i-HEC iphucula ukunamathela kwezinto zokwambathisa kwiindonga (ezifana nesamente okanye i-gypsum) ngokuziqinisa, ukuphucula ukufuma, kunye nokuphucula amandla efilimu. Ukongeza, iipropati ze-HEC zokulwa nokuwa zinegalelo ekugudiseni komphezulu wezinto zokwambathisa emva kokusetyenziswa.

Iingubo zomthi

Kwimigqumo yomthi, isiphumo sokubopha ihydrogen se-HEC sibonakala kakhulu. Umphezulu womthi utyebile ngamaqela e-hydroxyl, kwaye i-HEC inokwenza umanyano oluqinileyo nayo, nto leyo ephucula kakhulu ukuqina kunye nokunamathela kombala.

Iingubo zesinyithi

Kwizinto zokugquma zesinyithi, ukuphuculwa kokumanzi kwe-HEC kwenza ukuba izinto zokugquma zigqume kakuhle umphezulu wesinyithi kwaye zonyuse ukunamathela kwento yokugquma nge-polarity. Oku kubaluleke kakhulu kwizinto zokugquma ezichasene nokugqwala.

Iingubo zeglasi

I-HEC inefuthe elihle lokukhuthaza ukunamathela kwiindawo ezithambileyo ezingezizo ezo zithambileyo ezifana neglasi, kwaye iimpawu ze-polar zamaqela e-hydroxyl kwiimolekyuli zayo zinokwenza ukuba kungabikho ukuhambelana kweekhemikhali phakathi komphezulu weglasi kunye nokwaleka.

4. Imida ye-HEC ekunamatheleni kwengubo

NangonaI-HECineengenelo ezibalulekileyo ekuphuculeni ukunamathela kwengubo, ikwanazo nemida ethile. Umzekelo, i-HEC kulula ukufunxa umswakama kwindawo enomswakama ophezulu, nto leyo enokubangela ukwehla kokusebenza kwengubo. Ukongeza, kwezinye iingubo zoshishino ezifunwa kakhulu, i-HEC kufuneka isetyenziswe kunye nezinye izongezo ukuze kufezekiswe ukusebenza okuphezulu.

Njengesithambisi esibalulekileyo sokwenza ifilimu, ukusetyenziswa kwe-AnxinCel®HEC kwiingubo kuphucula kakhulu ukunamathela kweengubo. Kwenza ukuba iingubo zikwazi ukuziqhelanisa ngcono neendidi ezahlukeneyo zezixhobo ngokusebenzisa iindlela ezininzi ezifana nokuphucula ukumanzi, ukwenza iibhondi ze-hydrogen, kunye nokuphucula iipropati zokwenza ifilimu. Nangona kunjalo, kwizicelo zokwenyani, ubungakanani bokongeza kunye nokuhambelana kwe-HEC kufuneka kuphuculwe ngokudibeneyo nefomula ethile yokugquma kunye nendawo yokusetyenziswa ukuze kudlale indima yayo ngokupheleleyo.