Saamaynta Methyl Hydroxyethyl Cellulose ee Matrix Resin Epoxy

Methyl Hydroxyethyl Cellulose (MHEC) waa eter cellulose biyo-milmi leh oo si weyn loogu isticmaalo warshadaha dhismaha sidii dhumuc iyo wax ka beddelka rheology ee nidaamyada sibidhka. Waxaa la og yahay in la hagaajiyo sifooyinka socodka, shaqeynta, iyo ku dhejinta alaabta sibidhka, taas oo ka dhigaysa wax lagu daro wax ku ool ah oo la taaban karo, hoobiye, iyo qaababka qashinka. Si kastaba ha ahaatee, saamaynta MHEC ee sifooyinka matries resin epoxy ayaa helay dareen yar.

Resins Epoxy waa nooc ka mid ah polymers-ku-dhejinta kuwaas oo si weyn loogu isticmaalo hawada, baabuurta, iyo warshadaha dhismaha sababtoo ah sifooyinkooda farsamo ee aadka u wanaagsan, caabbinta kiimikada, iyo ku dhejinta substrates kala duwan. Si kastaba ha ahaatee, waxay noqon karaan kuwo jajaban oo muujiya awoodda saameynta hoose, taas oo xaddidaysa isticmaalkooda codsiyada qaarkood. Si arrintan wax looga qabto, cilmi-baarayaashu waxay baareen isticmaalka daroogooyinka kala duwan, oo ay ku jiraan ethers cellulose, si loo hagaajiyo adkaanta iyo saameynta caabbinta epoxy resins.

Daraasado dhowr ah ayaa soo sheegay isticmaalka MHEC sida wax lagu daro matries resin epoxy. Tusaale ahaan, daraasad uu sameeyay Kim et al. (2019) baadhay saamaynta MHEC ee sifooyinka farsamada ee isku-dhafka epoxy-ku-salaysan. Cilmi-baadhayaashu waxay ogaadeen in ku-darka MHEC ay hagaajisay adkaanta jabka iyo saameynta saameynta isku-dhafka, iyo sidoo kale xasilloonida kuleylka iyo caabbinta biyaha. Qorayaashu waxay u sababeeyeen hagaajintan awoodda MHEC si ay u sameeyaan curaarta hydrogen oo leh matrix resin epoxy, taas oo kordhisay ku dhegganaanta wajiga oo ka hortagaysa faafinta dillaaca.

Daraasad kale oo uu sameeyay Pan et al. (2017) baadhay saamaynta MHEC ee habdhaqanka daaweynta iyo sifooyinka farsamada ee nidaamka resin epoxy. Cilmi-baadhayaashu waxay ogaadeen in ku-darka MHEC ay dib u dhigtay wakhtiga daaweynta waxayna hoos u dhigtay heerkulka ugu badan ee daaweynta epoxy resin, taas oo loo aaneynayo dabeecadda hydrophilic ee MHEC. Si kastaba ha ahaatee, ku-darka MHEC waxay sidoo kale wanaajisay xoogga xajinta iyo dhererka jabinta resin epoxy la daaweeyay, taas oo muujinaysa in MHEC ay hagaajin karto dabacsanaanta iyo adkaanta matrix resin epoxy.

Marka lagu daro hagaajinta sifooyinka farsamada ee matries resin epoxy, MHEC ayaa sidoo kale la sheegay inay saameyn togan ku leedahay sifooyinka rheological ee hababka epoxy-ku salaysan. Tusaale ahaan, daraasad uu sameeyay Li et al. (2019) waxay baadhay saamaynta MHEC ee rheology-ga iyo sifooyinka farsamada ee xabagta epoxy-ku-salaysan. Cilmi-baadhayaashu waxay ogaadeen in isku-darka MHEC ay hagaajisay dabeecadda thixotropic ee koollada waxayna yaraysay dejinta buuxinta. Ku darida MHEC waxay sidoo kale wanaajisay xoogga adhesion iyo saameynta iska caabinta koollada.

Guud ahaan, isticmaalka MHEC sida wax lagu daro ee matries resin epoxy waxay muujisay natiijooyin rajo leh oo lagu hagaajinayo sifooyinka farsamada, adkaanta, iyo habdhaqanka rheological ee nidaamka. Awoodda MHEC si ay u samayso curaarta hydrogen oo leh matrix resin epoxy ayaa la rumeysan yahay inay tahay hab muhiim ah oo ka dambeeya hagaajintan, taas oo horseedi karta kororka isku dhejinta wejiga iyo hoos u dhigista faafinta dillaaca. Si kastaba ha ahaatee, cilmi baaris dheeraad ah ayaa loo baahan yahay si si buuxda loo fahmo saameynta MHEC ee sifooyinka matries resin epoxy iyo kor loogu qaado isticmaalka eter-ka cellulose-ka ee qaababka epoxy-ku salaysan.