ʻO ka hoʻopili ʻia ʻana o ka tile i hoʻopaʻa ʻia i ka sima ʻo ia ka hoʻohana nui ʻana o ka mortar hui maloʻo kūikawā o kēia manawa.He ʻano ʻano mea hoʻohui ʻia a inorganic paha me ka sima ma ke ʻano he mea hoʻoheheʻe nui a hoʻohui ʻia me ka grading aggregate, ka mea mālama wai, ka mea ikaika mua a me ka pauka latex.huikau.ʻO ka maʻamau, pono e hui pū ʻia me ka wai.Ke hoʻohālikelike ʻia me ka mortar sima maʻamau, hiki iā ia ke hoʻomaikaʻi nui i ka ikaika paʻa ma waena o ka mea e alo ana a me ka substrate, he waiwai anti-slip maikaʻi a he kūpaʻa wai maikaʻi loa a me ka pale wela.Hoʻohana ʻia ia no ka hoʻonani ʻana i nā tile o loko a me waho, nā tile papahele a me nā mea hoʻonaninani ʻē aʻe.Hoʻohana nuiʻia ia i ka hoʻonaniʻana i nā paia o loko a me waho, nā papahele, nā lumi lumi, nā lumi kuke, a me nā mea'ē aʻe.Mea hoʻopaʻa.
ʻO ka maʻamau, ke hoʻokolokolo mākou i ka hana o kahi tile adhesive, pono mākou e hoʻolohe i kona ikaika mechanical a me ka manawa wehe e hoʻohui i kāna hana hana a me ka hiki ke anti-slipping.Ma waho aʻe o ka hoʻopili ʻana i nā waiwai rheological o ka porcelain rubber, e like me ka maʻalahi o ka hana, ke ʻano o ka pahi pipili, a me nā mea ʻē aʻe, he mana ikaika ka cellulose ether i nā ʻano mechanical o ka tile adhesive.
1. Wehe manawa
I ka manawaʻO ka pauka polymer hiki ke hoʻokuʻu ʻiaacellulose eteracoexist i loko o ka pulu mortar, kekahi mau ikepili kükohu hōʻike i ka lāʻau pauka i ikaika kinetic ikehu pili i ka cement hydration huahana, a me ka cellulose etera ua oi aku i loko o ka interstitial wai, e pili hou.ʻO ka viscosity a me ka manawa hoʻonohonoho o ka mortar.ʻOi aku ka nui o ka ʻili o ka cellulose etera ma mua o ka pauka lāʻau, a ʻo ka hoʻonui ʻia ʻana o ka cellulose etera ma ke kikowaena mortar he mea pono e hana i kahi paʻa hydrogen ma waena o ka ʻili kumu a me ka cellulose etera.
I loko o ka mortar pulu, e hoʻoheheʻe ʻia ka wai i loko o ka mortar, hoʻonui ʻia ka cellulose ether ma luna o ka ʻili, a hana ʻia kahi kiʻiʻoniʻoni ma ka ʻili o ka mortar i loko o 5 mau minuke, e hoʻemi ana i ka nui o ka evaporation ma hope, no ka mea, ʻoi aku ka nui o ka wai mai ka lepo. moka.ʻO kahi hapa o ka neʻe ʻana i ka ʻāpana ʻoi aku ka lahilahi o ka papa mortar, ʻo ka wehe mua ʻana o ka membrane e hoʻoheheʻe ʻia i kahi hapa, a ʻo ka neʻe ʻana o ka wai e lawe mai i ka cellulose ether i ka ʻili o ka mortar.
ʻO ka hana kiʻiʻoniʻoni o cellulose ether ma ka ʻili o ka mortar he mana nui i ka hana o ka mortar:
ʻO ka mea mua, ʻoi aku ka lahilahi o ka kiʻiʻoniʻoni i hana ʻia, e hoʻoheheʻe ʻia ʻelua, ʻaʻole hiki ke kaupalena i ka evaporation o ka wai, hoʻemi i ka ikaika.
ʻO ka lua, ʻoi aku ka mānoanoa o ka kiʻiʻoniʻoni i hana ʻia, ʻoi aku ka kiʻekiʻe o ka neʻe ʻana o ka cellulose ether i loko o ka wai interstitial mortar, a nui ka viscosity.Ke hoʻopili ʻia ka tile, ʻaʻole maʻalahi ke wāwahi i ke kiʻiʻoniʻoni.
Mai kēia, ua hoʻomaopopo ʻia ʻo ke kiʻiʻoniʻoni e hana ana i nā waiwai o ka cellulose ether he mana nui i ka manawa wehe.ʻO ke ʻano o ka cellulose ether (HPMC,HEMC, MC, etc.) a me ka degere o ka etherification (degree of substitution) pili pono i na waiwai hana kii o cellulose ether, a me ka paakiki a me ka paakiki o ke kii.
2, ikaika
Ma waho aʻe o ka hāʻawi ʻana i nā waiwai pono like ʻole i hōʻike ʻia ma luna nei i ka mortar, ka cellulose ether e hoʻopaneʻe i nā kinetics hydration o ka sima.ʻO kēia ka hoʻihoʻi ʻana ma muli o ka adsorption o cellulose ether mole ma nā ʻano minerala like ʻole i loko o ka ʻōnaehana cement hydrated, akā ma ka ʻōlelo maʻamau, ua hoʻopili ʻia nā molekole cellulose ether i ka wai e like me CSH a me ka calcium hydroxide.Ma ka huahana kemika, ʻaʻole hiki ke hoʻopili ʻia ma ka pae mineral mua o ka clinker.Eia kekahi, ma muli o ka hoʻonui ʻana i ka viscosity o ka solution pore, hoʻemi ka cellulose ether i ka neʻe ʻana o nā ion (Ca2+, SO42-, ...) i loko o ka solution pore, a laila e hoʻopaneʻe hou i ke kaʻina hydration.
ʻO ka viscosity kekahi mea nui e hōʻike ana i nā waiwai kemika o nā cellulose ethers.E like me ka mea i ʻōlelo ʻia ma luna nei, pili nui ka viscosity i ka hiki ke paʻa i ka wai a he hopena nui hoʻi i ka hana o ka mortar hou.Eia naʻe, ua ʻike nā haʻawina hoʻokolohua ʻaʻohe hopena o ka viscosity o cellulose ether i ka hydration kinetics o ka sima.He liʻiliʻi ka hopena o ka paona mole i ka hydration, a ʻo ka ʻokoʻa nui loa ma waena o nā kaupaona molekala ʻokoʻa he 10 min wale nō.No laila, ʻaʻole ʻo ka paona molekala he mea nui no ka mālama ʻana i ka hydration sima.
"Ke noi ʻana i ka Cellulose Ether i loko o nā huahana mortar maloʻo i hui pū ʻia me ka Cement" e hōʻike maopopo ana i ka hoʻihoʻi ʻana o ka cellulose ether ma muli o kona ʻano kemika.ʻO ke ʻano maʻamau i hōʻuluʻulu ʻia ʻo ia no ka MHEC, ʻoi aku ka kiʻekiʻe o ke kiʻekiʻe o ka methylation, ʻoi aku ka liʻiliʻi o ka lohi o ka cellulose ether.Eia kekahi, ʻoi aku ka paʻakikī o nā pani hydrophilic (e like me ka hoʻololi ʻana iā HEC) ma mua o ka hydrophobic substitutions (e like me ka hoʻololi ʻana iā MH, MHEC, MHPC).Hoʻopili nui ʻia ka hopena o ka cellulose ether e nā ʻāpana ʻelua o ke ʻano a me ka nui o ka hui pani.
Ua ʻike pū ʻia kā mākou hoʻokolohua ʻōnaehana he mea koʻikoʻi ka ʻike o nā mea pani i ka ikaika mechanical o ka mea hoʻopili tile.Ua loiloi mākou i ka hana o HPMC me nā pae like ʻole o ka hoʻololi ʻana i ka tile adhesive, a hoʻāʻo i nā hui cellulose ether me nā hui like ʻole ma lalo o nā kūlana hoʻōla like ʻole.ʻO ka mana o nā ʻano mechanical o ka mea hoʻopili tile, Kiʻi 2 a me Kiʻi 3 nā hopena o ka hoʻololi ʻana i ka ʻike methoxy (DS) a me ka ʻike hydroxypropoxy (MS) i ka ikaika huki ʻana o ka paʻa tile i ka lumi wela.
Kiʻi 2
Kiʻi 3
I ka ho'āʻo, mākou noonooHydroxypropyl methyl cellulose (HMC), he etera paʻakikī.No laila, pono mākou e hoʻohui i nā kiʻi ʻelua.No ka HPMC, pono mākou i kahi lako e hōʻoia i ka hoʻoheheʻe wai a me ka lawe māmā.ʻIke mākou i ka ʻike o nā mea pani.Hoʻoholo pū ia i ka mahana gel o HPMC, kahi e hoʻoholo ai i ke kaiapuni i hoʻohana ʻia ai ka HPMC.No laila, ʻo ka ʻike o ka HPMC i hoʻohana mau ʻia i hoʻopaʻa ʻia i loko o kahi ākea.Pehea e hoʻohui ai i nā pūʻulu methoxy a me hydroxypropoxy i kēia pae No ka loaʻa ʻana o nā hopena maikaʻi loa ka mea a mākou e aʻo ai.Hōʻike ka Figure 2 i loko o kahi kikoʻī, ʻo ka piʻi ʻana o ka maʻiʻo methoxyl e lawe mai i kahi ʻano i lalo o ka ikaika huki, ʻoiai e piʻi ka hydroxypropoxyl content a piʻi ka ikaika huki.No ka manawa wehe, aia nā hopena like.
Ka manawa hoʻouna: Dec-18-2018