He aha nā mea e pili ana i ka mālama ʻana i ka wai o ka cellulose ether?

Hoʻohana mau ʻia nā eter cellulose, e like me ka methyl cellulose (MC) a me ka hydroxyethyl cellulose (HEC), ma ke ʻano he mau mea mālama wai i nā mea hana e like me nā mortar sima a me nā plasters-based gypsum. Hiki ke hoʻopili ʻia ka paʻa ʻana o ka wai o cellulose ethers e nā kumu like ʻole:

1. Hoʻolālā Kemika: Hoʻopilikia ka hana kemika o nā cellulose ethers i kā lākou mau waiwai paʻa wai. No ka laʻana, hōʻike maʻamau ka hydroxyethyl cellulose (HEC) i ka paʻa wai kiʻekiʻe ma mua o ka methyl cellulose (MC) ma muli o ka loaʻa ʻana o nā pūʻulu hydroxyethyl, e hoʻonui ai i ka mana paʻa wai.
2. Kaumaha Molekala: ʻOi aku ka maikaʻi o ka mālama ʻana o ka wai i nā etera cellulose kaumaha molekala kiʻekiʻe no ka mea ua hana lākou i nā ʻupena hoʻopaʻa hydrogen ʻoi aku ka nui me nā molekole wai. ʻO ka hopena, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai ma mua o nā eter cellulose me nā kaumaha molekala kiʻekiʻe.
3. ʻAi: ʻO ka nui o ka cellulose ether i hoʻohui ʻia i ka mortar a i ʻole ka hui ʻana o ka plaster pili pono i ka mālama ʻana i ka wai. ʻO ka hoʻonui ʻana i ke ʻano o ka cellulose ether e hoʻonui maʻamau i ka mālama ʻana i ka wai, a hiki i kahi manawa ʻaʻole e hoʻomaikaʻi maikaʻi ka hoʻohui hou ʻana i ka mālama ʻana a hiki ke hoʻopilikia i nā waiwai ʻē aʻe o ka mea.
4. ʻO ka nui a me ka hāʻawi ʻana: ʻO ka nui o ka ʻāpana a me ka hāʻawi ʻana i nā cellulose ethers hiki ke hoʻololi i ko lākou dispersibility a me ka pono i ka mālama ʻana i ka wai. ʻO nā etera cellulose lepo maikaʻi me ka hāʻawi like ʻana i ka nui o ka nui o nā ʻāpana like ʻole e hoʻopuehu like i loko o ka hui ʻana, e alakaʻi ana i ka hoʻopaʻa ʻana i ka wai.
5. ʻO ka mahana a me ka haʻahaʻa: ʻO nā kūlana kūlohelohe, e like me ka mahana a me ka haʻahaʻa, hiki ke hoʻopili i ka hydration a me ka paʻa ʻana o ka wai o cellulose ethers. Hiki i nā mahana kiʻekiʻe ke hoʻolalelale i ke kaʻina hana hydration, e alakaʻi ana i ka hoʻopaʻa ʻana i ka wai. ʻO ka mea like ʻole, hiki i nā kūlana haʻahaʻa haʻahaʻa ke hāpai i ka evaporation a hoʻemi i ka paʻa ʻana o ka wai.
6. ʻAno Sima a me nā mea hoʻohui: ʻO ke ʻano o ka sima a me nā mea hoʻohui ʻē aʻe i loaʻa i loko o ka mortar a i ʻole ka hui plaster hiki ke hoʻopili me nā cellulose ethers a hoʻololi i ko lākou mau waiwai paʻa wai. Hiki i kekahi mau ʻano sima a i ʻole nā ​​mea hoʻohui ke hoʻonui a keʻakeʻa paha i ka paʻa ʻana o ka wai ma muli o ko lākou kūpono kemika a me ka launa pū ʻana me cellulose ethers.
7. Ke Kaʻina Hoʻohui: ʻO ke kaʻina hui ʻana, me ka manawa hui ʻana, ka wikiwiki o ka hui ʻana, a me ke ʻano o ka hoʻohui ʻana i nā meaʻai, hiki ke hoʻopili i ka hoʻopuehu a me ka hydration o cellulose ethers i loko o ka hui. Pono nā hana hoʻohui kūpono e hōʻoia i ka hāʻawi like ʻana o nā cellulose ethers a me ka hoʻopaʻa ʻana i ka wai.
8. Nā Kūlana Hoʻōla: ʻO nā kūlana hoʻōla, e like me ka manawa hoʻōla a me ka mahana, hiki ke hoʻopili i ka hydration a me ka paʻa ʻana o ka wai o cellulose ethers i loko o ka mea hoʻōla. Pono ka ho'ōla kūpono e hiki ai i nā cellulose ethers ke hoʻomaʻemaʻe piha a kōkua i ka paʻa ʻana o ka wai no ka wā lōʻihi i ka huahana paʻakikī.

Ma ka noʻonoʻo ʻana i kēia mau mea, hiki i ka poʻe loea kūkulu ke hoʻohana i ka cellulose ethers ma ke ʻano he mea mālama wai i ka mortar a me ka plaster formulations e hoʻokō i nā ʻano hana i makemake ʻia e like me ka workability, adhesion, a me ka lōʻihi.