Nā waiwai mānoanoa o ka cellulose ethers

Hāʻawi nā cellulose ethers i ka viscosity maikaʻi loa i ka mortar pulu, e hoʻonui nui i ka hiki ke hoʻopaʻa ʻia o ka mortar pulu i ka substrate a hoʻomaikaʻi i ka pale ʻana o ka mortar, a hoʻohana nui ʻia i ka plastering mortar, brick bonding mortar a me nā ʻōnaehana insulation waho. Hiki i ka mānoanoa o ka cellulose ether ke hoʻonui i ka anti-dispersing hiki a me ka homogeneity o nā mea hou i hui pū ʻia, pale i ka delamination mea, ka hoʻokaʻawale ʻana a me ka huna ʻana o ka wai, a hiki ke hoʻohana ʻia i loko o ka fiber concrete, underwater concrete and self-compacting concrete.

ʻO ka hopena mānoanoa o ka cellulose ethers ma nā mea cementitious ka hopena mai ka viscosity o ka solution cellulose ether. Ma lalo o nā kūlana like, ʻoi aku ka kiʻekiʻe o ka viscosity o ka cellulose ether, ʻoi aku ka maikaʻi o ka viscosity o nā mea cementitious i hoʻololi ʻia, akā inā kiʻekiʻe loa ka viscosity, e hoʻopilikia ia i ka wai a me ka hana o ka mea (e laʻa i nā pahi plaster sticky). ʻO nā mīkini hoʻonaʻauao ponoʻī a me ka paʻa paʻa ponoʻī, e koi ana i ka wai kiʻekiʻe, e koi i ka viscosity haʻahaʻa o nā cellulose ethers. Eia kekahi, ʻo ka hopena mānoanoa o ka cellulose ethers e hoʻonui i ka pono wai o nā mea cementitious a hoʻonui i ka hua o ka mortar.

ʻO ka viscosity o ka cellulose ether solutions e pili ana i nā kumu aʻe: ke kaumaha molekala o ka cellulose ether, ka ʻike, ka mahana, ka shear rate a me ke ʻano hoʻāʻo. Ma lalo o nā kūlana like, ʻoi aku ka nui o ke kaumaha o ka molecular cellulose ether, ʻoi aku ka kiʻekiʻe o ka viscosity o ka hopena; ʻoi aku ka kiʻekiʻe o ka ʻike, ʻoi aku ka kiʻekiʻe o ka viscosity o ka hopena, i ka hoʻohana ʻana i ka nānā pono e uku ʻia e pale i ka dosing nui a hoʻopilikia i nā waiwai hana o ka mortar a me ka ʻuala; E emi ana ka viscosity solution cellulose ether me ka piʻi ʻana o ka mahana, a ʻoi aku ka kiʻekiʻe o ka ʻike, ʻoi aku ka nui o ka mana o ka mahana; ʻO ka solution cellulose ether ka mea maʻamau i ka wai pseudoplastic, me ke ʻano o ka shear thinning, ʻoi aku ka nui o ka hoʻāʻo ʻO ka nui o ka shear rate o ka hoʻāʻo, ʻoi aku ka liʻiliʻi o ka viscosity, no laila e hoʻemi ʻia ka cohesion o ka mortar ma lalo o ka hana o nā mana o waho, ʻO ia ka mea kūpono i ka hana ʻana i ka ʻōpala, i hiki ai i ka mortar ke hana maikaʻi i ka hana a me ka cohesion i ka manawa like; no ka mea, he wai non-Newtonian ka solution cellulose ether, nā ʻano hoʻāʻo viscosity test, instrumentation a i ʻole ka hoʻāʻo ʻana, ʻokoʻa paha nā hopena hoʻonā cellulose ether solution.