Umphumela wokuqina we-cellulose ether

I-CelluleOse Ether ifaka ngodaka olumanzi olunokubonakala okuhle kakhulu, okungakhulisa kakhulu amandla e-bonding phakathi kodaka olumanzi kanye nongqimba lwesisekelo, futhi athuthukise ukusebenza kwe-anti-sag, nokwenza ngcono ukusebenza kwe-anti-sag, nokwenza ngcono ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, nokwenza ngcono ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, nokwenza ngcono ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, nokwenza ngcono ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, nokwenza ngcono ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, nokwenza ngcono ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag, futhi kuthuthukise ukusebenza kwe-anti-sag ngodaka. Isetshenziswa kabanzi ku-wortar oliphaphayo, uhlelo lwangaphandle oludongeni lokufakwa kodonga kanye nodaka lokubopha izitini. The thickening effect of cellulose ether can also increase the homogeneity and anti-dispersion ability of freshly mixed cement-based materials, prevent delamination, segregation and bleeding of mortar and concrete, and can be used in fiber concrete, underwater concrete and self-compacting concrete .

I-Cellulose Ether inyusa ukubonakala kwezinto zokwenza usimende ezisekelwe ku-viscosion ether ether. Inkomba yokuthi "i-viscosity" ivame ukusetshenziselwa ukuhlola ukubonakala kwe-rullulose ether perher. I-viscosity ye-cellulose ether ngokuvamile ibhekisela kwikhambi le-ether ye-cellulose ngokuhlushwa okuthile (njenge-2%). Isivinini (noma isilinganiso sokujikeleza, njenge-20 RPM), inani le-viscosity elikalwe ngensimbi yokulinganisa ecacisiwe (efana ne-vepcometer ejikelezayo).

I-Viscosity iyipharamitha ebalulekile yokuhlola ukusebenza kwe-cellulose ether. Lapho kuphakama i-viscosity ye-cellulose ether perher solution, okungcono kakhulu kwezinto zokwakha usimende, okungcono ukunamathela ku-substrate, kanye namandla okulwa nokulwa nokuhlaselwa. Uma i-viscosity yayo ephezulu kakhulu, izothinta uketshezi nokusebenza kwezinto zokwenziwa kokhonkolo (njengokunamathela imimese yokubumba ngenkathi kulungiswa lodaka). Ngakho-ke, i-viscosity ye-cellulose ether esetshenziswa ngodaka oluxutshwe omile imvamisa i-15,000 ~ 60,000 MPA. I-S-1, isikhungo sokuzimela ngodaka nokhonkolo ozimisele ngokuzihlanganisa, ezidinga uketshezi oluphezulu, zidinga ukubonakala okuphansi kwe-cellulose ether.

Ngaphezu kwalokho, umphumela wokuqina we-cellulose ether ukhulisa ukufunwa kwamanzi kwezinto zokwenziwa kosimende, ngaleyo ndlela kwandise isivuno sodaka.

I-viscosity yekhambi le-ether ye-cellulose incike kulezi zinto ezilandelayo:

Isisindo se-molecular (noma idigri ye-polymerization) kanye nokuhlushwa kwe-cellulose ether, izinga lokushisa lesisombululo, izinga lokuhlola kanye nendlela yokuhlola.

1. Kukhuphuka izinga le-polymerization ye-cellulose ether, isisindo esikhulu sokwanela, futhi kukhuphuka isisombululo salo esinamanzi;

2. Iphakeme umthamo (noma ukugxila) we-cellulose ether, kukhuphuka ukubonwa kwesisombululo sawo esinamanzi, kepha ukunakekelwa kufanele kuthathwe ukukhetha umthamo ofanele lapho usebenzisa udaka ngodaka nokhonkolo uma umthamo ephezulu kakhulu;

I-3. Njengoketshezi oluningi, i-viscosity ye-cellulose ether isixazululo izokwehla ngokunyuka kwamazinga okushisa, futhi kukhuphuka kakhulu kwe-cellulose ether, kuphoqelela kakhulu ithonya lokushisa;

4 Inani elikhulu kakhulu lapho kuhlolwa, kwehlise ukubonakala.

Ngakho-ke, ukubumbana kodaka kuzoncishiswa ngenxa yamandla angaphandle, okuzuzisa ukwakhiwa kodaka, ukuze udaka akwazi ukusebenziseka okuhle nokubumbana ngasikhathi sinye. Kodwa-ke, isixazululo se-cellulose ether lizokhombisa izici ze-Newtonian fluid lapho okuhlushwa kuphansi kakhulu futhi ukuhlakanipha kuncane. Lapho okuhlushwa kunyuka, ikhambi lizobukisa kancane kancane kancane izici ze-pseudoplastic fluid, kanye nokuhlushwa okuphezulu, okusobala kakhulu i-pseudoplasticity.