Iipropati ezityebileyo ze-cellulose ethers

I-cellulose ethers inika i-viscosity egqwesileyo kudaka olumanzi, yandisa kakhulu amandla okudibanisa udaka olumanzi kwi-substrate kwaye iphucule ukuxhathisa ukugoba kodaka, kwaye isetyenziswa ngokubanzi kudaka lokutyabeka, udaka lokubopha ngezitena kunye neenkqubo zokugquma ngaphandle. Isiphumo sokutyeba se-cellulose ether sinokunyusa amandla okulwa nokusabalalisa kunye ne-homogeneity yezinto ezixubeneyo ezisanda kuhlanganiswa, ukuthintela ukuchithwa kwezinto, ulwahlulo kunye nokukhutshwa kwamanzi, kwaye ingasetyenziselwa kwikhonkrithi yefiber, ikhonkrithi engaphantsi kwamanzi kunye ne-self-compacting concrete.

Isiphumo sokutyeba se-cellulose ethers kwizinto zesamente ziphuma kwi-viscosity yesisombululo se-cellulose ether. Phantsi kweemeko ezifanayo, ukuphakama kwe-viscosity ye-ether cellulose, ngcono i-viscosity yezinto eziguquliweyo zesamente, kodwa ukuba i-viscosity iphezulu kakhulu, iya kuchaphazela ukuguquguquka kunye nokusebenza kwezinto (umzekelo, iimela ze-plaster sticky). Iifama zokuziphakamisa kunye nekhonkrithi yokuzimela, efuna i-fluidity ephezulu, ifuna i-viscosity ephantsi ye-cellulose ethers. Ukongeza, isiphumo esityebileyo se-cellulose ethers sandisa imfuno yamanzi yezixhobo zesamente kwaye yandisa isivuno sodaka.

I-viscosity yezisombululo ze-cellulose ether ixhomekeke kule miba ilandelayo: ubunzima bemolekyuli ye-cellulose ether, i-concentration, iqondo lokushisa, izinga le-shear kunye nendlela yokuvavanya. Ngaphantsi kweemeko ezifanayo, ubukhulu be-molecular weight of cellulose ether, buphezulu i-viscosity yesisombululo; i-concentration ephezulu, i-viscosity ephezulu yesisombululo, ekusebenziseni ingqalelo kufuneka ihlawulwe ukuphepha i-dosing eninzi kwaye ichaphazele iipropati zokusebenza zodaka kunye nekhonkrithi; i-cellulose ether isisombululo se-viscosity iya kuncipha ngokunyuka kweqondo lokushisa, kwaye iphakamileyo yoxinaniso, impembelelo enkulu yeqondo lokushisa; Isisombululo se-cellulose ether ngokuqhelekileyo i-pseudoplastic fluid, kunye nemvelo ye-shear thinning, ukuvavanya okukhulu Uvavanyo olukhulu lwe-shear lovavanyo, i-viscosity encinci, ngoko ukudibanisa komdaka kuya kuncitshiswa phantsi kwesenzo samandla angaphandle, ehambelana nokwakhiwa kodaka, ukwenzela ukuba udaka lunokusebenza kakuhle kunye nokubambisana ngexesha elifanayo; ngenxa yokuba isisombululo se-cellulose ether silulwelo olungelulo lwe-Newtonian, iindlela zovavanyo lwe-viscosity test, i-instrumentation okanye indawo yokuvavanya, iziphumo zovavanyo lwe-cellulose ether efanayo zinokwahluka kakhulu.