No ka hoʻopili ʻana i ka mortar pulu,hydroxypropyl methylcelluloseHe maikaʻi nā waiwai mānoanoa, hiki ke hoʻonui nui i ka hiki ke hoʻopaʻa ma waena o ka mortar pulu a me ka papa kumu, a hiki ke hoʻomaikaʻi i ka hana anti-sag o ka mortar, no laila ua hoʻohana nui ʻia i ka plastering Mortar, ka ʻōnaehana insulation paia waho a me ka mortar bonding brick.
No ka hopena mānoanoa o ka cellulose ether, hiki iā ia ke hoʻonui i ka homogeneity a me ka hiki ke anti-dispersion o nā mea sima i hui hou ʻia, a hiki nō hoʻi ke pale aku i nā pilikia o ka delamination, segregation a me ke kahe ʻana o ke koko i loko o ka mortar a me ka sima. Hiki ke hoʻopili ʻia i ka sima i hoʻoikaika ʻia me ka fiber, ka sima ma lalo o ka wai a me ka sima ponoʻī.
Hiki i ka Hydroxypropyl methylcellulose ke hoʻonui i ka hana viscous o nā mea i hoʻokumu ʻia i ka sima. Loaʻa kēia hana mai ka viscosity o ka cellulose ether solution. Ma keʻano laulā, hoʻohana ʻia ka helu helu o ka viscosity e hoʻoholo ai i ka viscosity o ka cellulose ether solution, ʻoiai ʻo ka cellulose ʻO ka viscosity o ka ether e pili pinepine ana i kahi ʻano o ka cellulose ether solution, maʻamau 2%, ma kahi mahana i kuhikuhi ʻia, e like me 20 degere a me ka wikiwiki o ka hoʻohuli ʻana, me ka hoʻohana ʻana i kahi mea ana i kuhikuhi ʻia, e like me ka viscometer rotational. Ka waiwai viscosity.
ʻO ka viscosity kekahi o nā palena koʻikoʻi e hoʻoholo ai i ka hana o ka cellulose ether. ʻO ke kiʻekiʻe o ka viscosity o ka hydroxypropyl methylcellulose solution, ʻoi aku ka maikaʻi o ka viscosity o nā mea sima, a ʻoi aku ka maikaʻi o ka hana hoʻopili i ka substrate. I ka manawa like, ʻoi aku ka ikaika o ka hiki ke anti-sagging a me ka hiki ke anti-dispersion, akā inā kiʻekiʻe loa kona viscosity, e hoʻopilikia ia i ka hana kahe a me ka hana o nā mea sima.
He aha nā mea e hoʻopilikia ai i ka mānoanoa o ka hydroxypropyl methylcellulose? Pili nui ia i nā kumu aʻe.
1. ʻO ke kiʻekiʻe o ke kekelē o ka polymerization o ka cellulose ether o ka hydroxypropyl methylcellulose, ʻoi aku ka nui o kona kaumaha molekala, e hopena ana i ka viscosity kiʻekiʻe o kāna hopena wai.
2. Inā ʻoi aku ka nui a i ʻole ka nui o ka cellulose ether, e ʻoi aku ka nui o ka viscosity o kāna wai hoʻoheheʻe. Eia nō naʻe, pono e akahele e koho i kahi nui kūpono o ka cellulose ether i ka wā e hoʻohana ai, ʻo ka mea nui e pale aku i ka nui o ka cellulose ether. E hoʻopilikia ia i ka hana o ka mortar a me ka sima.
3. E like me ka hapa nui o nā wai, e emi ana ka mānoanoa o ka hopena cellulose ether me ka piʻi ʻana o ka mahana, a ʻo ke kiʻekiʻe o ka nui o ka cellulose ether, ʻo ka haʻahaʻa o ka mahana. ʻO ka nui o ka hopena.
4. ʻO ka hopena cellulose ether he pseudoplastic maʻamau, nona nā ʻano o ka shear thinning. ʻO ka nui o ka shear rate i ka wā o ka hoʻāʻo ʻana, ʻo ka liʻiliʻi o ka viscosity.
E hoʻemi ʻia ke kuʻikahi o ka mortar ma muli o ka hana a ka ikaika o waho, he mea maikaʻi hoʻi ia no ke kūkulu ʻana o ka mortar, e hopena ana i ka kuʻikahi maikaʻi a me ka hana ʻana o ka mortar i ka manawa like. Eia naʻe, ināʻEtera celluloseʻOi aku ka nui o ka hoʻohuihui o ka hopena. Ke haʻahaʻa ka mānoanoa a liʻiliʻi ka mānoanoa, e hōʻike ia i nā ʻano o ka wai Newtonian. Ke piʻi ka hoʻohuihui, e hōʻike mālie ka hopena i nā ʻano o ka wai pseudoplastic, a inā kiʻekiʻe ka hoʻohuihui, e ʻike nui ʻia ka pseudoplasticity.
Ka manawa hoʻouna: ʻApelila-28-2024