ʻO ka viscosity kahi mea nui o ka hana cellulose ether.
ʻO ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka hopena paʻa wai o ka gypsum mortar.Eia nō naʻe, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka kiʻekiʻe o ke kaumaha molecular o cellulose ether, a ʻo ka emi ʻana o kona solubility e loaʻa i kahi hopena maikaʻi ʻole i ka ikaika a me ka hana ʻana o ka mīkini.ʻO ke kiʻekiʻe o ka viscosity, ʻoi aku ka maopopo o ka hopena mānoanoa ma ka mortar, akā ʻaʻole pololei ia.
ʻOi aku ke kiʻekiʻe o ka viscosity, ʻoi aku ka ʻoi aku o ka viscous o ka mortar pulu.I ka wā o ke kūkulu ʻana, ʻike ʻia ʻo ia e pili ana i ka scraper a me ka hoʻopili kiʻekiʻe i ka substrate.Akā ʻaʻole kōkua ka hoʻonui ʻana i ka ikaika o ke kūkulu ʻana o ka mortar pulu ponoʻī.Eia kekahi, i ka wā o ke kūkulu ʻana, ʻaʻole maopopo ka hana anti-sag o ka mortar pulu.Ma kahi ʻē aʻe, ʻoi aku ka maikaʻi o ka hoʻomaikaʻi ʻana i ka ikaika o ka mortar pulu.
ʻO nā mea pā hale ka hapa nui o nā hale porous, a he ikaika ko lākou a pau i ka wai.Eia naʻe, ua hoʻomākaukau ʻia nā mea hana hale gypsum i hoʻohana ʻia no ka hana ʻana i ka pā ma ka hoʻohui ʻana i ka wai i ka paia, a ua maʻalahi ka wai i ka pā, ka hopena i ka nele o ka wai e pono ai no ka hydration o ka gypsum, ka hopena i ka paʻakikī i ka hana plastering a hoʻemi ʻia. ka ikaika pili, ka hopena i nā māwae, Nā pilikia maikaʻi e like me ka hollowing a me ka ʻili.ʻO ka hoʻomaikaʻi ʻana i ka paʻa wai o nā mea hale gypsum hiki ke hoʻomaikaʻi i ka maikaʻi o ke kūkulu ʻana a me ka ikaika paʻa me ka pā.No laila, ua lilo ka mea mālama wai i kekahi o nā mea hoʻohui koʻikoʻi o nā mea kūkulu hale gypsum.
Hoʻohana ʻia ka gypsum plastering, ka gypsum i hoʻopaʻa ʻia, ka gypsum caulking, ka gypsum putty a me nā mea hana pauka hana ʻē aʻe.I mea e maʻalahi ai ke kūkulu ʻana, ua hoʻohui ʻia nā gypsum retarders i ka wā o ka hana ʻana e hoʻolōʻihi i ka manawa hana o ka gypsum slurry.No ka mea, ua hui pū ʻia ka gypsum me ka Retarder, ka mea e pale ai i ka hana hydration o ka hemihydrate gypsum.Pono e mālama ʻia kēia ʻano slurry gypsum ma ka paia no 1 a 2 mau hola ma mua o ka hoʻonohonoho ʻana.Loaʻa ka hapa nui o nā paia i nā waiwai hoʻoheheʻe wai, ʻoi aku ka nui o nā pā pōhaku a me ka ʻeated concrete.ʻO ka pā, ka papa insulation porous a me nā mea ʻē aʻe māmā hou o ka pā, no laila pono e hoʻokō ʻia ka mālama ʻana i ka wai ma ka gypsum slurry e pale aku i ka hoʻololi ʻana o ka ʻāpana o ka wai i ka slurry i ka paia, ka hopena i ka nele o ka wai a me ka hydration ʻole i ka wā o ka gypsum paakiki ka slurry.E hoʻokaʻawale a ʻili i ka hui ma waena o ka gypsum a me ka ʻili o ka paia.ʻO ka hoʻohui ʻana o ka mea hoʻopaʻa wai e mālama i ka wai i loko o ka gypsum slurry, e hōʻoia i ka hopena hydration o ka slurry gypsum ma ka interface, i mea e hōʻoia ai i ka ikaika paʻa.ʻO nā mea mālama wai maʻamau he cellulose ethers, e like me: methyl cellulose (MC), hydroxypropyl methyl cellulose (HPMC), hydroxyethyl methyl cellulose (HEMC), etc. Eia kekahi, polyvinyl alcohol, sodium alginate, starch modified, diatomaceous earth, Hiki ke hoʻohana ʻia ka pauka lepo rare, a me nā mea ʻē aʻe e hoʻomaikaʻi i ka hana mālama wai.
Ka manawa hoʻouna: Feb-28-2023