1. Yintoni i-hydroxyethyl cellulose (HEC)?
Iselulosi yeHydroxyethyl (HEC)yindalo yepolymer compound kunye ne-cellulose derivative. Yikhompawundi ye-ether e-soluble yamanzi efunyenwe ngokusabela kwe-cellulose kunye ne-ethylene oxide. Ubume bemichiza ye-hydroxyethyl cellulose iqulethe i-skeleton esisiseko ye-cellulose, kwaye kwangaxeshanye yazisa i-hydroxyethyl (-CH2CH2OH) i-substituents kwikhonkco layo le-molecular, elinika ukunyibilika kwamanzi kunye neempawu ezithile zomzimba kunye neekhemikhali. Yikhemikhali engeyiyo ityhefu, engacaphukiyo kwaye enokubola esetyenziswa kakhulu kumashishini ahlukeneyo.
2. Ukusebenza kwe-hydroxyethyl cellulose
Ukunyibilika kwamanzi: I-Hydroxyethyl cellulose inokunyibilika kakuhle emanzini kwaye inokunyibilika ngokukhawuleza kumanzi abandayo okanye ashushu ukwenza isisombululo se-viscous. I-solubility iyanda ngokunyuka kweqondo le-hydroxyethylation, ngoko inokulawulwa kakuhle kwizicelo zoshishino.
Iimpawu ze-Viscosity: I-viscosity yesisombululo se-hydroxyethyl cellulose ihambelana ngokusondeleyo nesisindo sayo se-molecular, iqondo le-hydroxyethylation kunye nokugxininiswa kwesisombululo. I-viscosity yayo inokulungelelaniswa kwizicelo ezahlukeneyo ukuhlangabezana neemfuno ezahlukeneyo zenkqubo. Kwiindawo eziphantsi, ziziphatha njengesisombululo se-viscosity ephantsi, ngelixa kwiindawo eziphezulu, i-viscosity yanda ngokukhawuleza, inika iimpawu ezinamandla ze-rheological.
I-Nonionicity: I-Hydroxyethyl cellulose yi-surfactant ye-nonionic engathintekiyo kwiinguqu kwixabiso le-pH yesisombululo, ngoko ibonisa ukuzinza okulungileyo phantsi kweemeko ezahlukeneyo zokusingqongileyo. Le propati yenza ukuba isetyenziswe ngokubanzi kwiifom ezininzi ezifuna ukuzinza.
Ukujiya: Iselulosi yeHydroxyethyl ineempawu ezilungileyo zokujiya kwaye isetyenziswa njengento etyebisayo kwimixube emininzi esekwe emanzini. Inokunyusa ngokufanelekileyo i-viscosity yolwelo kwaye ilungelelanise ubumanzi kunye nokusebenza kwemveliso.
Iipropathi zokwenziwa kwefilimu kunye ne-emulsifying: I-Hydroxyethyl cellulose ineempawu ezithile zefilimu kunye ne-emulsifying, kwaye inokusabalalisa ngokuzinzileyo izithako ezahlukeneyo kwinkqubo ye-multiphase. Le propati ibaluleke kakhulu kwiimveliso zokuthambisa kunye neengubo.
Uzinzo lweThermal kunye nokunyibilika:Iselulosi yeHydroxyethylizinzile kubushushu, inokugcina ukunyibilika kwayo kunye nokusebenza ngaphakathi kwinqanaba elithile lobushushu, kwaye ivumelane neemfuno zeendawo zokushisa eziphezulu. Le propati yenza kube luncedo kwisicelo kwiindawo ezithile ezikhethekileyo.
I-Biodegradability: Ngenxa yomthombo wayo wendalo we-cellulose, i-hydroxyethyl cellulose ine-biodegradability elungileyo, ngoko ke inempembelelo encinane kwindalo kwaye iyinto ehambelana nokusingqongileyo.
3. Iinkalo zokusetyenziswa kwe-hydroxyethyl cellulose
Ishishini lokwakha kunye nokwaleka: I-Hydroxyethyl cellulose isoloko isetyenziswa njenge-thickener kunye ne-ejenti yokugcina amanzi kwishishini lokwakha, kwaye isetyenziswa ngokubanzi kudaka lwesamente, i-adhesives, udaka olomileyo kunye nezinye iimveliso. Inokuphucula ukusebenza kunye nokuguquguquka kwezinto eziphathekayo, ukuphucula ukunamathela kunye nokusebenza kwamanzi okugquma. Ngenxa yokugcinwa kakuhle kwamanzi, inokwandisa ngokufanelekileyo ixesha elivulekileyo lezinto eziphathekayo, ukuthintela ukuvela kwamanzi ngokukhawuleza, kwaye uqinisekise umgangatho wokwakha.
Ukukhutshwa kwe-oyile kunye nolwelo lokugaya: Kwi-oyile ye-oyile, i-cellulose ye-hydroxyethyl isetyenziswa njenge-thickener yokucoca ulwelo kunye nolwelo olugqityiweyo, olunokuthi lulungelelanise ngokufanelekileyo i-rheology yolwelo, ukuthintela ukubekwa kodaka eludongeni lwequla kunye nokuzinzisa isakhiwo sodonga lomthombo. Kwakhona kunokunciphisa ukungena kwamanzi kunye nokuphucula ukusebenza kakuhle kunye nokhuseleko lokomba.
Ishishini lezithambiso:Iselulosi yeHydroxyethylisetyenziswa kakhulu kwiimveliso zokhathalelo lwesikhumba, ishampu, ijeli yeshawa, ikhrimu yobuso kunye nezinye iimveliso njenge-thickener, emulsifier and stabilizer kwi-cosmetics. Inokunyusa i-viscosity yemveliso, iphucule i-fluidity yemveliso, ikhulise ukuvakalelwa kwemveliso, kwaye yenza ifilimu ekhuselayo eluswini ukunceda ukufumisa nokukhusela.
Umzi-mveliso wamachiza: I-Hydroxyethyl cellulose isetyenziswa njengesibophelelo sechiza, i-arhente ekhutshwa ngokuqhubekayo, kunye nesigcwalisi kwiipilisi kunye nee-capsules kushishino lwamayeza. Inokuphucula iimpawu zomzimba zamalungiselelo echiza kwaye yandise uzinzo kunye ne-bioavailability yamachiza.
Umzi-mveliso we-textile kunye nePhepha: Kwishishini le-textile, i-hydroxyethyl cellulose ingasetyenziswa njengento encedisayo yokudaya kunye noshicilelo oluncedisayo ukuphucula ukufana kokudaya kunye nokuthamba kwelaphu. Kwishishini lokwenza iphepha, lisetyenziswa njenge-thickener kwi-coatings yephepha ukuphucula umgangatho wokushicilela kunye neglosi yeglosi yephepha.
Ishishini lokuTya: I-Hydroxyethyl cellulose ikwasetyenziswa ekulungisweni kokutya, ikakhulu njengento etyebisayo, i-emulsifier kunye ne-stabilizer. Iyakwazi ukulungelelanisa incasa kunye nokuthungwa kokutya, umzekelo, kwi-ayisikrimu, i-jelly kunye neziphuzo, inokuphucula ukuzinza kunye nokuvumba kwemveliso.
Ezolimo: Kwintsimi yezolimo, i-hydroxyethyl cellulose isoloko isetyenziswa kumalungiselelo okubulala izitshabalalisi, ukugqunywa kwezichumiso kunye neemveliso zokukhusela izityalo. Ukuqina kwayo kunye neempawu zokuthambisa zinceda ukuphucula ukufana kunye nokubambelela kwii-agent zokutshiza, ngaloo ndlela kuphuculwe ukusebenza kwe-pesticides kunye nokunciphisa ukungcoliseka kwendalo.
Iikhemikhali zemihla ngemihla: Kwiimveliso zokucoca indlu kunye nokunyamekela komntu, i-hydroxyethyl cellulose isetyenziswa njenge-thickener kunye ne-stabilizer ukunyusa umphumo wokusetyenziswa kunye nokuvakalelwa kwemveliso. Umzekelo, isoloko isetyenziswa kwimichiza yemihla ngemihla enje ngolwelo lokuhlamba izitya, izicoci zokuhlamba iimpahla, kunye nezicoci zobuso.
Iselulosi yeHydroxyethyli-molecular compound ephezulu kunye nokusebenza okuphezulu kunye noluhlu olubanzi lokusetyenziswa. Ukunyibilika kwayo okulungileyo emanzini, ukutyeba, ukuzinza kwe-thermal kunye nokubola kwe-biodegradability kuyenza isetyenziswe ngokubanzi kwiindawo ezininzi ezinjengokwakha, i-petroleum, izithambiso, amayeza, kunye namalaphu. Ngokuphuculwa kweemfuno zokusingqongileyo kunye nokuqhubela phambili kwezobuchwepheshe, ithemba lesicelo se-HEC liya kuba libanzi kwaye libe lukhetho olubalulekileyo lwezinto zokukhusela okusingqongileyo kunye nezongezo ezisebenzayo.
Ixesha lokuposa: Nov-07-2024