I-Hydroxyethyl Cellulose (HEC) i-non-ionic yamanzi-e-soluble polymer compound enesakhiwo seekhemikhali siguqulwa kwi-cellulose ngokusebenzisa i-hydroxyethylation reaction. I-HEC ine-solubility efanelekileyo yamanzi, ukuqina, ukumisa, i-emulsifying, i-dispersing kunye ne-film-forming properties, ngoko isetyenziswa ngokubanzi kwizinto zokwakha, iingubo, iikhemikhali zemihla ngemihla kunye noshishino lokutya. Kwi-spray-coated-coated-coated-coated-coated irabha ye-asphalt yokugquma kwamanzi, ukuqaliswa kwe-hydroxyethyl cellulose kunokuphucula kakhulu ukuxhathisa ubushushu.
1. Iimpawu ezisisiseko ze-hydroxyethyl cellulose
IHydroxyethylcellulose inokuqina okusebenzayo kunye nobuchule bokwenza ifilim emanzini, nto leyo eyenza ukuba ibe yeyona nto ifanelekileyo yokujiya kwiindidi ezahlukeneyo zokugquma kwamanzi. Iyakwandisa kakhulu i-viscosity yepeyinti ngokwenza iibhondi ze-hydrogen kunye neemolekyuli zamanzi, okwenza uthungelwano lwama-athomu amanzi luqina. Le propati ibaluleke kakhulu kwiingubo ezingenamanzi, njengoko i-viscosity ephezulu inceda i-coating igcine imilo yayo kunye nobukhulu ngaphambi kokunyanga, ukuqinisekisa ukuhambelana kwefilimu kunye nokuqhubeka.
2. Inkqubo yokuphucula ukumelana nobushushu
2.1 Ukwandisa ukuzinza kweengubo
Ubukho be-hydroxyethyl cellulose bunokuphucula ukuzinza kwe-thermal ye-asphalt ye-asphalt. I-viscosity yeepeyinti ngokuqhelekileyo iyehla xa amaqondo obushushu enyuka, kwaye i-hydroxyethyl cellulose iyacothisa le nkqubo kwaye igcine iimpawu ezibonakalayo zepeyinti. Oku kungenxa yokuba iqela le-hydroxyethyl kwi-molecule ye-HEC inokwenza inethiwekhi ye-cross-linked ngokomzimba kunye namanye amacandelo e-coating, ephucula ukuzinza kwe-thermal yefilimu yokugubungela kwaye yenza ukuba igcine isakhiwo esihle kunye nokusebenza phantsi kweemeko eziphezulu zokushisa.
2.2 Ukuphucula iimpawu zomatshini wefilimu yokugquma
Iimpawu zomatshini wefilimu yokugubungela, njengokuguquguquka, amandla okuqina, njl., Ichaphazela ngokuthe ngqo ukusebenza kwayo phantsi kweemeko eziphezulu zokushisa. Ukuqaliswa kwe-HEC kunokuphucula iimpawu zomatshini wefilimu yokugqoka, eyona nto ibangelwa yimpembelelo yayo yokuqina eyenza ifilimu yokugubungela i-denser. Isakhiwo sefilimu esixineneyo asiphuculi nje ukuchasana nobushushu, kodwa sikwanyusa amandla okumelana noxinzelelo lomzimba olubangelwa kukwandiswa kwe-thermal yangaphandle kunye nokucutha, ukuthintela ukuqhekeka okanye ukucoca ifilimu yokwambathisa.
2.3 Ukuphucula ukubambelela kwifilimu yokugqoka
Ngaphantsi kweemeko eziphakamileyo zokushisa, iingubo ezingenamanzi zixhomekeke kwi-delamination okanye i-peelling, eyona nto ibangelwa ukunamathela okunganeleyo phakathi kwe-substrate kunye nefilimu yokugqoka. I-HEC inokuphucula ukunamathela kwengubo kwi-substrate ngokuphucula ukusebenza kokwakhiwa kunye neempawu zokwenza ifilimu yokugqoka. Oku kunceda i-coating igcine uqhagamshelwano olusondeleyo kunye ne-substrate kumaqondo aphezulu okushisa, ukunciphisa umngcipheko wokukhupha okanye ukucima.
3. Idatha yovavanyo kunye nokusetyenziswa okusebenzayo
3.1 Uyilo lovavanyo
Ukuze kuqinisekiswe isiphumo se-hydroxyethyl cellulose ekuxhathiseni ubushushu be-asphalt ekhawulezayo yokuseta i-asphalt yokugquma kwamanzi, uthotho lwezilingo lunokuyilwa. Kuvavanyo, imixholo eyahlukeneyo ye-HEC inokongezwa kwi-coating engangeni manzi, kwaye ke ukuzinza kwe-thermal, iipropathi zomatshini kunye nokunamathela kwengubo kunokuvavanywa ngohlalutyo lwe-thermogravimetric (TGA), uhlalutyo lwe-thermomechanical (DMA) kunye novavanyo lwe-tensile.
3.2 Iziphumo zovavanyo
Iziphumo zovavanyo zibonisa ukuba emva kokongeza i-HEC, ubushushu obungamelanga ubushushu bokugquma bunyuke kakhulu. Kwiqela lokulawula ngaphandle kwe-HEC, ifilimu yokugqoka yaqala ukubola kwi-150 ° C. Emva kokongeza i-HEC, iqondo lobushushu elinokumelana nefilimu yokugquma lenyuke laya kutsho ngaphezulu kwe-180°C. Ukongezelela, ukuqaliswa kwe-HEC kwandisa amandla okuqina kwefilimu yokugqoka malunga ne-20%, ngelixa iimvavanyo ze-peelling zibonise ukuba ukunamathela kwengubo kwi-substrate kwanda malunga ne-15%.
4. Izicelo zobunjineli kunye nezilumkiso
4.1 Isicelo sobunjineli
Kwizicelo ezisebenzayo, ukusetyenziswa kwe-hydroxyethyl cellulose kunokuphucula kakhulu ukusebenza kolwakhiwo kunye nokusebenza kokugqibela kokutshiza okukhawulezileyo kwerubha ye-asphalt yokugquma kwamanzi. Olu tyaba oluguquliweyo lunokusetyenziswa kwimimandla efana nokwakhiwa kokungangeni kwamanzi, ubunjineli bobunjineli obungaphantsi komhlaba, kunye ne-anticorrosion yombhobho, kwaye ifaneleke ngokukodwa kwiimfuno zokungangeni kwamanzi kwiindawo eziphezulu zokushisa.
4.2 Amanyathelo okhuseleko
Nangona i-HEC inokuphucula kakhulu ukusebenza kweengubo, idosi yayo kufuneka ilawulwe ngokufanelekileyo. Ukugqithisa kwe-HEC kunokubangela ukuba i-viscosity yengubo ibe phezulu kakhulu, echaphazela ukusebenza kokwakhiwa. Ke ngoko, kuyilo lwefomula yokwenyani, idosi ye-HEC kufuneka iphuculwe ngokusebenzisa imifuniselo ukufezekisa owona msebenzi ubalaseleyo wokwaleka kunye nesiphumo sokwakha.
I-Hydroxyethyl cellulose iphucula ngokufanelekileyo ukuchasana nobushushu be-sprayed i-asphalt ye-asphalt ekhawulezayo yokubeka i-asphalt yokugquma kwamanzi ngokunyusa i-viscosity ye-coating, ukuphucula iimpawu ze-mechanical zefilimu yokugquma, kunye nokuphucula ukunamathela kwengubo. Idatha yovavanyo kunye nokusetyenziswa okusebenzayo kubonisa ukuba i-HEC ineempembelelo ezibalulekileyo ekuphuculeni ukuzinza kwe-thermal kunye nokuthembeka kweengubo. Ukusetyenziswa okunengqiqo kwe-HEC akukwazi nje ukuphucula ukusebenza kokwakhiwa kweengubo, kodwa kwandise kakhulu ubomi benkonzo yeengubo zokungena kwamanzi kwiindawo eziphezulu zokushisa, ukubonelela ngeengcamango ezintsha kunye neendlela zokuphuhliswa kwezixhobo zokwakha ezingenamanzi.
Ixesha lokuposa: Jul-08-2024