He aha ka Hydroxyethyl Cellulose?
ʻO Hydroxyethyl cellulose (HEC), he melemele keʻokeʻo a māmā paha, ʻaʻohe ʻala, ʻaʻohe mea ʻawaʻawa a i ʻole ka pauka paʻa, i hoʻomākaukau ʻia e ka hopena etherification o ka cellulose alkaline a me ka ethylene oxide (a i ʻole chlorohydrin), nona nā Nonionic soluble cellulose ethers. No ka mea he mau waiwai maikaʻi ʻo HEC o ka mānoanoa, hoʻokuʻu, hoʻopuehu, emulsifying, hoʻopaʻa ʻana, hana kiʻiʻoniʻoni, pale i ka wai a me ka hāʻawi ʻana i ka colloid pale, ua hoʻohana nui ʻia i ka ʻimi ʻaila, nā uhi, ke kūkulu ʻana, ka lāʻau lapaʻau, ka meaʻai, textile, papermaking a me polymer Polymerization a me nā kula ʻē aʻe.
He aha ka hopena ke hui ka hydroxyethyl cellulose i ka pena wai?
Ma ke ʻano he surfactant non-ionic,hydroxyethyl celluloseLoaʻa iā ia nā waiwai e pili ana i ka mānoanoa, hoʻopaneʻe, hoʻopaʻa, lana, hana kiʻiʻoniʻoni, hoʻopuehu, mālama wai a hāʻawi i ka colloid pale:
Hiki ke hoʻoheheʻe ʻia ka HEC i ka wai wela a i ʻole ka wai anuanu, ka wela kiʻekiʻe a i ʻole ka paila ʻana me ka ʻole o ka ua, i loaʻa iā ia ka nui o ka solubility a me nā ʻano viscosity, a me ka gelation non-thermal;
ʻOi aku ka nui o ka paʻa wai ma mua o ka methyl cellulose, a ʻoi aku ka maikaʻi o ka hoʻoponopono kahe ʻana;
Ke hoʻohālikelike ʻia me ka methyl cellulose i ʻike ʻia a me ka hydroxypropyl methyl cellulose, ʻoi aku ka maikaʻi o ka hoʻopuehu ʻana o HEC, akā ʻoi aku ka ikaika o ka pale colloid.
ʻAʻole ionic a hiki ke noho pū me ka nui o nā polymers hiki ke hoʻoheheʻe ʻia i ka wai, surfactants, a me nā paʻakai. He mānoanoa colloidal maikaʻi loa ia no nā haʻina electrolyte kiʻekiʻe;
Pehea e hoʻohana ai i ka hydroxyethyl cellulose? Pehea e hoʻohui ai?
Hoʻohui pololei i ka wā hana - ʻo kēia ʻano ka mea maʻalahi a lawe i ka manawa pōkole loa.
E hoʻohui i ka wai maʻemaʻe i loko o kahi bākeke nui i hoʻolako ʻia me kahi hui ʻoki kiʻekiʻe. E hoʻomaka i ka hoʻoulu ʻana me ka wikiwiki haʻahaʻa a kānana mālie i ka hydroxyethyl cellulose i loko o ka hopena. E hoʻomau i ka hoʻouluʻana a hiki i ka pauʻana o nā'āpana. A laila hoʻohui i nā preservatives a me nā mea hoʻohui like ʻole. E like me nā puaʻa, nā mea hoʻopuehu, ka wai amonia, a me nā mea ʻē aʻe. E hoʻoulu a hiki i ka pau ʻana o ka hydroxyethyl cellulose (e piʻi nui ka viscosity o ka hopena) ma mua o ka hoʻohui ʻana i nā mea ʻē aʻe i loko o ke ʻano no ka pane ʻana.
Hoʻolako ʻia me ka ʻona makuahine
ʻO ia ka hoʻomākaukau mua ʻana i ka waiʻona makuahine me ka ʻoi aku ka kiʻekiʻe, a laila hoʻohui i ka huahana. ʻO ka maikaʻi o kēia ʻano hana ʻoi aku ka maʻalahi a hiki ke hoʻohui pololei ʻia i ka huahana i hoʻopau ʻia, akā pono e mālama pono ʻia. Ua like nā ʻanuʻu o kēia ʻano me ka hapa nui o nā ʻanuʻu ma ke ʻano 1; ʻO ka ʻokoʻa, ʻaʻohe pono o ka mea hoʻouluulu kiʻekiʻe, a ʻo kekahi mau mea hoʻouluulu me ka mana lawa e mālama i ka hydroxyethyl cellulose i hoʻopuehu like ʻia i loko o ka hopena hiki ke hoʻomau ʻia me ka ʻole o ka hoʻokuʻu ʻana a hiki i ka hoʻoheheʻe ʻia ʻana i loko o kahi hopena viscous. Eia nō naʻe, pono e hoʻomaopopo ʻia e hoʻohui ʻia ka fungicide i ka waiʻona makuahine i ka hiki.
No ka mea he pauda a fibrous paʻa ka hydroxyethyl cellulose i mālama ʻia i ka ʻili, hoʻomanaʻo ʻo Lihongde iā ʻoe e hoʻolohe i kēia mau mea i ka wā e hoʻomākaukau ai i ka waiʻona makuahine hydroxyethyl cellulose:
(1) Ma mua a ma hope o ka hoʻohui ʻana i ka hydroxyethyl cellulose, pono e hoʻoulu mau ʻia a hiki i ka ʻike ʻana o ka hopena.
(2) Pono e kānana mālie ʻia i loko o ka pahu hui, a mai hoʻokomo i ka nui a i ʻole hoʻokomo pololei i ka hydroxyethyl cellulose i loko o ka pahu hui.
(3) He pilina koʻikoʻi ko ka wela o ka wai a me ka waiwai PH i ka wai me ka hoʻoheheʻe ʻana o ka hydroxyethyl cellulose, no laila pono e uku ʻia.
(4) Mai hoʻohui i kekahi mau mea alkaline i ka hui ʻana ma mua o ka hoʻopiha ʻia ʻana o ka pauka hydroxyethyl cellulose me ka wai. ʻO ka hoʻonui ʻana i ka pH ma hope o ka pulu ʻana e kōkua i ka hoʻoheheʻe.
(5) E like me ka hiki, e hoʻohui i ka antifungal agent ma mua
(6) I ka hoʻohana ʻana i ka hydroxyethyl cellulose kiʻekiʻe-viscosity, ʻaʻole pono ke kiʻekiʻe o ka waiʻona makuahine ma mua o 2.5-3% (ma ke kaupaona), inā ʻaʻole e paʻakikī ka inu ʻana o ka makuahine.
Ka manawa hoʻouna: Dec-26-2022