Zeziphi izinto eziya kuchaphazela i-viscosity ye-hydroxypropyl methylcellulose?

Ukusetyenziswa kwesamente esimanzi,i-hydroxypropyl methylcelluloseineempawu ezilungileyo zokutyeba, inokunyusa kakhulu amandla okubopha phakathi kwe-mortar emanzi kunye nomaleko osisiseko, kwaye inokuphucula ukusebenza kwe-mortar echasene nokuwa, ngoko ke isetyenziswa kakhulu ekuplasteni i-Mortar, inkqubo yokukhusela udonga lwangaphandle kunye ne-mortar yokubopha izitena.

Ukuze i-cellulose ether ibe nokuqina, inokwandisa ukulingana kunye nokukwazi ukusasazeka kwezinto ezisandula ukuxutywa ngesamente, kwaye inokuthintela iingxaki zokwahlukanisa, ukwahlukanisa kunye nokopha kwi-mortar kunye nekhonkrithi. Ingasetyenziswa kwikhonkrithi eqinisiweyo nge-Fiber, ikhonkrithi engaphantsi kwamanzi kunye nekhonkrithi ezizixinanisayo.

I-Hydroxypropyl methylcellulose inokunyusa ukusebenza okuqinileyo kwezinto ezisekwe kwisamente. Olu phuhliso luvela ikakhulu kwi-viscosity yesisombululo se-cellulose ether. Ngokubanzi, i-number index ye-viscosity isetyenziselwa ukugweba i-viscosity yesisombululo se-cellulose ether, ngelixa i-cellulose I-viscosity ye-ether idla ngokubhekisa ikakhulu kuxinzelelo oluthile lwesisombululo se-cellulose ether, ngesiqhelo yi-2%, kubushushu obuthile, njenge-20 degrees kunye nesantya sokujikeleza, kusetyenziswa isixhobo sokulinganisa esichaziweyo, njenge-rotary viscometer. Ixabiso le-viscosity.

Ukuqina komoya yenye yezona parameter zibalulekileyo zokugweba ukusebenza kwe-cellulose ether. Okukhona i-viscosity yesisombululo se-hydroxypropyl methylcellulose iphezulu, kokukhona i-viscosity yezinto ezisekwe kwisamente ingcono, kwaye kokukhona i-adhesion isebenza ngcono kwi-substrate. Kwangaxeshanye, inobunamandla obuchasene nokuwa kunye nokukwazi ukulwa nokusasazeka, kodwa ukuba i-viscosity yayo iphezulu kakhulu, iya kuchaphazela ukusebenza kokuhamba kunye nokusebenza kwezinto ezisekwe kwisamente.

Zeziphi izinto eziya kuchaphazela i-viscosity ye-hydroxypropyl methylcellulose? Ngokuyintloko kuxhomekeke kwezi zizathu zilandelayo.

1. Okukhona inqanaba eliphezulu le-polymerization ye-cellulose ether ye-hydroxypropyl methylcellulose, kokukhona ubunzima bayo be-molecular bukhulu, nto leyo ebangela ukuba isisombululo sayo samanzi sibe siphezulu.

2. Ukuba ubungakanani okanye uxinaniso lwe-cellulose ether luphezulu, i-viscosity yesisombululo sayo samanzi iya kuba phezulu. Nangona kunjalo, kufuneka kuthathwe ingqalelo ekukhetheni ubungakanani obufanelekileyo be-cellulose ether xa uyisebenzisa, ikakhulu ukuze kuthintelwe ubungakanani obukhulu be-cellulose ether. Iya kuchaphazela ukusebenza kwe-mortar kunye ne-concrete.

3. Njengezinye izinto ezininzi ezimanzi, i-viscosity yesisombululo se-cellulose ether iya kuncipha xa ubushushu bunyuka, kwaye xa uxinzelelo lwe-cellulose ether luphezulu, ubushushu buyancipha. Okukhona impembelelo iba nkulu.

4. Isisombululo se-cellulose ether sidla ngokuba yi-pseudoplastic, eneempawu zokucheba. Okukhona isantya sokucheba sikhulu ngexesha lovavanyo, kokukhona i-viscosity incinci.

Ukudibana kwesamente kuya kuncipha ngenxa yesenzo samandla angaphandle, nto leyo ekwaluncedo ekwakhiweni kwesamente, nto leyo ekhokelela ekuhlanganeni kakuhle nasekusebenzeni kakuhle kwesamente ngaxeshanye. Nangona kunjalo, ukubai-cellulose etherIsisombululo sinoxinzelelo oluphezulu Xa i-viscosity iphantsi kwaye i-viscosity incinci, iya kubonisa iimpawu ze-Newtonian fluid. Xa uxinzelelo lusanda, isisombululo siya kubonisa kancinci iimpawu ze-pseudoplastic fluid, kwaye ukuba uxinzelelo luphezulu, i-pseudoplasticity iya kubonakala ngakumbi.