Ukusetyenziswa kwe-HEC njenge-rheology modifier kwiipeyinti ezisekelwe emanzini kunye neengubo
Iselulosi yeHydroxyethyl (HEC)i-rheology modifier esetyenziswa ngokubanzi kwiipeyinti ezisekelwe emanzini kunye neengubo ngenxa yeempawu zayo ezizodwa ezifana nokuqina, ukuzinzisa, kunye nokuhambelana nokuqulunqwa okuhlukahlukeneyo.
Iipeyinti ezisekelwe emanzini kunye neengubo ziye zafumana ukuthandwa okuphawulekayo kwiminyaka yamuva nje ngenxa ye-eco-friendlyliness, umxholo ophantsi we-volatile organic compound (VOC), kunye nokuthotyelwa kokulawula. I-Rheology modifiers idlala indima ebalulekileyo ekwandiseni ukusebenza kwezi zakhiwo ngokulawula i-viscosity, ukuzinza, kunye neempawu zokusetyenziswa. Phakathi kweendlela ezahlukeneyo zokuguqula i-rheology, i-hydroxyethyl cellulose (HEC) iye yavela njengesongezo esiguquguqukayo esinezicelo ezibanzi kwishishini lepeyinti kunye neengubo.
1.IiPropati zeHEC
I-HEC i-polymer e-soluble yamanzi ephuma kwi-cellulose, enamaqela asebenzayo e-hydroxyethyl. Ulwakhiwo lwalo lwemolekyuli lunika iimpawu ezizodwa ezinjengokuqina, ukubopha, ukwenza ifilim, kunye namandla okugcina amanzi. Ezi zakhiwo zenza i-HEC ibe yinto efanelekileyo yokukhetha ukuguqula ukuziphatha kwe-rheological yeepeyinti ezisekelwe emanzini kunye neengubo.
2.Indima ye-HEC njengoMguquleli weRheology
I-Agent yokutyebisa: I-HEC ikwandisa ngokufanelekileyo i-viscosity yokuqulunqwa kwamanzi, ukuphucula ukuxhathisa kwabo kwe-sag, ukulinganisa, kunye nokuxubha.
I-Stabilizer: I-HEC inika uzinzo kwiipende kunye neengubo ngokuthintela ukuhlalisa i-pigment, i-flocculation, kunye ne-syeresis, ngaloo ndlela iphucula ubomi beshelufu kunye nokuhambelana kwesicelo.
I-Binder: I-HEC inegalelo ekubunjweni kwefilimu ngokubopha amasuntswana e-pigment kunye nezinye izongezo, iqinisekisa ukuqina kwengubo efanayo kunye nokubambelela kwii-substrates.
Ukugcinwa kwamanzi: I-HEC igcina umswakama ngaphakathi kokuqulunqwa, ukuthintela ukomisa kwangaphambi kwexesha kunye nokuvumela ixesha elaneleyo lokusetyenziswa kunye nokubunjwa kwefilimu.
3.Iizinto eziPhembelela ukusebenza kwe-HEC
Ubunzima beMolekyuli: Ubunzima bemolekyuli ye-HEC buchaphazela ukusebenza kwayo kokuqina kunye nokuxhathisa kwe-shear, kunye namabanga aphezulu obunzima bemolekyuli abonelela ngokuphuculwa okukhulu kwe-viscosity.
Ugxininiso: Ugxininiso lwe-HEC ekuqulunqweni luchaphazela ngokuthe ngqo iimpawu zayo ze-rheological, kunye noxinzelelo oluphezulu olukhokelela ekunyuseni kwe-viscosity kunye nobukhulu befilimu.
I-pH kunye ne-Ionic Amandla: i-pH kunye namandla e-ionic inokuchaphazela ukunyibilika kunye nokuzinza kwe-HEC, kufuneke uhlengahlengiso lokuqulunqa ukulungelelanisa ukusebenza kwayo.
Ubushushu: I-HEC ibonisa ukuziphatha kwe-rheological exhomekeke kubushushu, kunye ne-viscosity ehlala iyancipha kumaqondo obushushu aphezulu, ifuna iprofayili ye-rheological kuwo wonke amaqondo obushushu ahlukeneyo.
Ukusebenzisana kunye nezinye izongezo: Ukuhambelana nezinye izongezo ezifana ne-thickeners, dispersants, kunye ne-defoamers inokuchaphazela ukusebenza kwe-HEC kunye nokuzinza kokuqulunqwa, kufuna ukukhethwa ngokucophelela kunye nokulungiswa.
4.Izicelo zeI-HECkwiipeyinti eziseManzini kunye neeNgqungquthela
I-Paints yangaphakathi nangaphandle: I-HEC isetyenziswa ngokuqhelekileyo kwiipeyinti zangaphakathi nangaphandle ukuze kufezekiswe i-viscosity efunwayo, iipropati zokuhamba, kunye nokuzinza kwiimeko ezininzi zokusingqongileyo.
Iingubo zoMthi: I-HEC iphucula iipropati zesicelo kunye nokubunjwa kwefilimu yeengubo zokhuni ezisekelwe emanzini, ziqinisekisa ukugubungela okufanayo kunye nokuqina okuphuculweyo.
I-Architectural Coatings: I-HEC inegalelo kulawulo lwe-rheological kunye nokuzinza kweengubo zezakhiwo, okwenza kube lula ukusetyenziswa kunye nokubonakala komphezulu ofanayo.
I-Industrial Coatings: Kwiingubo zemizi-mveliso, i-HEC iququzelela ukuqulunqwa kweengubo eziphezulu zokusebenza kunye nokunamathela okugqwesileyo, ukuxhathisa ukubola, kunye nokuqina kweekhemikhali.
Iingubo eziKhethekileyo: I-HEC ifumana izicelo kwiingubo ezikhethekileyo ezifana neengubo ezichasene ne-corrosive, i-coating-retardant coatings, kunye ne-textured coatings, apho ulawulo lwe-rheological lubalulekile ekufezekiseni iimpawu zokusebenza ezifunwayo.
5.IiNdlela zexesha elizayo kunye nezinto ezintsha
I-HEC ye-Nanostructured: I-Nanotechnology inikezela ngamathuba okuphucula ukusebenza kwee-coatings ezisekelwe kwi-HEC ngokuphuhliswa kwezixhobo ze-nanostructured kunye neempawu eziphuculweyo ze-rheological kunye nokusebenza.
Ukuqulunqwa okuzinzileyo: Ngokugxininisa okukhulayo ekuzinzeni, kukho umdla okhulayo ekuphuhliseni i-coatings yamanzi kunye ne-bio-based and renewable additives, kubandakanywa ne-HEC efunyenwe kwi-cellulose feedstocks ezinzileyo.
I-Smart Coatings: Ukudityaniswa kweepolymers ezihlakaniphile kunye nezongezo eziphendulayo kwiingubo ezisekelwe kwi-HEC zinesithembiso sokwenza iingubo ezinokuziphatha okuguquguqukayo kwe-rheological, amandla okuziphilisa, kunye nokusebenza okuphuculweyo kwezicelo ezizodwa.
Ukwenziwa kweDijithali: Ukuqhubela phambili kwimveliso yedijithali
Itekhnoloji ye-uring efana noshicilelo lwe-3D kunye nemveliso eyongezelelweyo inika amathuba amatsha okusebenzisa imathiriyeli esekwe kwi-HEC kwiingubo ezilungiselelweyo kunye nemiphezulu esebenzayo elungiselelwe iimfuno zoyilo oluthile.
I-HEC isebenza njengemodyuli yerheology eguquguqukayo kwiipeyinti ezisekwe emanzini kunye neengubo, enikezela ukutyeba okukhethekileyo, ukuzinzisa, kunye nokubopha iipropathi eziyimfuneko ekufezekiseni iimpawu zokusebenza ezinqwenelekayo. Ukuqonda izinto eziphembelela ukusebenza kwe-HEC kunye nokuphonononga izicelo ezitsha kuya kuqhubeka nokuqhubela phambili ukuqhubela phambili kwitekhnoloji yokwaleka esekwe emanzini, ukujongana neemfuno zentengiso eziguqukayo kunye neemfuno zokuzinza.
Ixesha lokuposa: Apr-02-2024