E like me ka hoʻohui nui loa i ke kūkulu ʻana i nā huahana mortar maloʻo, ʻo ka cellulose ether ke kuleana nui i ka hana a me ke kumukūʻai o ka mortar maloʻo. ʻElua ʻano o ka cellulose ethers: ʻo ka ionic, e like me ka sodium carboxymethyl cellulose (CMC), a ʻo ka mea ʻē aʻe he non-ionic, e like me methyl cellulose (MC), hydroxyethyl cellulose (HEC), Hydroxypropyl cellulose (HPMC), etc. . ʻO ka hana huahana o cellulose ether i loko o ka mortar maloʻo maloʻo ua lilo i mea nui o ka nānā ʻana o nā mea hana a me nā mea hoʻohana.
ʻO ka waiwai nui o ka cellulose ether ka paʻa ʻana o ka wai i nā mea kūkulu hale. Me ka hoʻohui ʻole o ka cellulose ether, maloʻo koke ka ʻāpana lahilahi o ka mortar hou i hiki ʻole i ka sima ke hoʻoheheʻe ʻia ma ke ʻano maʻamau a ʻaʻole hiki i ka mortar ke paʻakikī a hoʻokō i ka cohesion maikaʻi. I ka manawa like, ʻo ka hoʻohui ʻana o ka cellulose ether e hana i ka mortar i ka plasticity maikaʻi a me ka maʻalahi, a hoʻomaikaʻi i ka ikaika paʻa o ka mortar. E kamaʻilio e pili ana i ka hopena o ka hoʻohana ʻana i ka mortar maloʻo mai ka hana huahana o cellulose ether.
1. ʻO ka maikaʻi o ka cellulose
ʻO ka maikaʻi o ka cellulose ether e pili ana i kona solubility. No ka laʻana, ʻo ka haʻahaʻa o ka fineness o cellulose ether, ʻoi aku ka wikiwiki o ka hoʻoheheʻe ʻana i ka wai a me ka hoʻomaikaʻi ʻana i ka hana paʻa wai. No laila, pono e hoʻokomo ʻia ka maikaʻi o ka cellulose ether e like me kekahi o kāna mau waiwai noiʻi. ʻO ka ʻōlelo maʻamau, ʻo ke koena sieve o cellulose ether fineness ma luna o 0.212mm ʻaʻole pono e ʻoi aku ma mua o 8.0%.
2. Ka hoʻomaloʻo ʻana i ke kaumaha kaumaha
ʻO ka helu hoʻomaloʻo kaumaha e pili ana i ka pākēneka o ka nuipaʻa o ka mea i nalowale i ka nui o ka hāpana kumu i ka wā e maloʻo ai ka cellulose ether i kahi mahana. No kekahi ʻano o ka cellulose ether, ʻoi aku ka kiʻekiʻe o ka hoʻomaloʻo ʻana i ke kaumaha kaumaha, e hōʻemi ana i ka ʻike o nā mea hana i loko o ka cellulose ether, e hoʻopilikia i ka hopena noi o nā ʻoihana o lalo, a hoʻonui i ke kumukūʻai kūʻai. ʻO ka maʻamau, ʻaʻole ʻoi aku ka nui o ke kaumaha ma ka maloʻo ʻana o ka cellulose ether ma mua o 6.0%.
3. ʻO ka lehu Sulfate ma loko o ka cellulose ether
No kekahi ʻano o ka cellulose ether, ʻoi aku ka kiʻekiʻe o ka lehu, kahi e hōʻemi ai i ka ʻike o nā mea hana i loko o ka cellulose ether a pili i ka hopena noi o nā ʻoihana o lalo. ʻO ka ʻona sulfate lehu o ka cellulose ether kahi ana koʻikoʻi o kāna hana ponoʻī. Hoʻohui pū ʻia me ke kūlana hana o kēia manawa o nā mea hana cellulose ether o koʻu ʻāina, ʻo ka mea maʻamau ka ʻike lehu o MC, HPMC, HEMC ʻaʻole pono ma mua o 2.5%, a ʻaʻole pono ka lehu o ka HEC cellulose ether ma mua o 10.0%.
4. Viscosity o ka cellulose ether
ʻO ka paʻa ʻana o ka wai a me ka hopena mānoanoa o ka cellulose ether e hilinaʻi nui ʻia i ka viscosity a me ke ʻano o ka cellulose ether ponoʻī i hoʻohui ʻia i ka slurry sima.
5. ʻO ka pH waiwai o cellulose ether
E emi mālie ka viscosity o nā huahana cellulose ether ma hope o ka mālama ʻia ʻana i kahi mahana kiʻekiʻe a i ʻole no ka manawa lōʻihi, ʻoi aku hoʻi no nā huahana kiʻekiʻe-viscosity, no laila pono e kaupalena i ka pH. ʻO ka maʻamau, ʻoi aku ka maikaʻi o ka mālama ʻana i ka pae pH o ka cellulose ether i 5-9.
6. Ka hoʻouna māmā o cellulose ether
Hoʻopili pololei ka māmā māmā o cellulose ether i kāna hopena noi i nā mea kūkulu hale. ʻO nā kumu nui e pili ana i ka lawe māmā o cellulose ether: (1) ka maikaʻi o nā mea maka; (2) ka hopena o ka alkalization; (3) ka lākiō kaʻina hana; (4) lākiō solvent; (5) hopena neutralization. E like me ka hopena o ka hoʻohana ʻana, ʻaʻole pono e emi ka māmā o ka cellulose ether ma mua o 80%.
7. ʻO ka mahana gel o ka cellulose ether
Hoʻohana nui ʻia ka cellulose ether ma ke ʻano he viscosifier, plasticizer a me ka mea mālama paʻa wai i nā huahana sima, no laila, ʻo ka viscosity a me ka mahana gel nā mea koʻikoʻi e ʻike ai i ka maikaʻi o ka cellulose ether. Hoʻohana ʻia ka mahana gel no ka hoʻoholo ʻana i ke ʻano o ka cellulose ether, e pili ana i ke kiʻekiʻe o ka hoʻololi ʻana o nā cellulose ethers. Eia kekahi, hiki i ka paʻakai a me nā haumia ke hoʻopili i ka mahana gel. Ke piʻi aʻe ka mahana o ka hopena, nalowale ka wai i ka cellulose polymer, a emi ka viscosity o ka hopena. Ke hiki i ka helu gel, ua maloʻo loa ka polymer a hana i kahi gel. No laila, i nā huahana sima, hoʻomalu pinepine ʻia ka mahana ma lalo o ka mahana gel mua. Ma lalo o kēia kūlana, ʻoi aku ka haʻahaʻa o ka mahana, ʻoi aku ka kiʻekiʻe o ka viscosity, a ʻoi aku ka maopopo o ka hopena o ka mānoanoa a me ka paʻa ʻana o ka wai.
Ka manawa hoʻouna: Apr-12-2023