ʻO ke kuleana o ka hydroxyethyl cellulose (HEC) i nā uhi!

Hydroxyethyl cellulose (HEC), he melemele keʻokeʻo a māmā paha, ʻaʻala ʻole, fibrous a pauda paʻa ʻole, i hoʻomākaukau ʻia e ka etherification o ka cellulose alkaline a me ka ethylene oxide (a i ʻole chlorohydrin), no ka genus 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 nā colloids pale, ua hoʻohana nui ʻia i ka ʻimi ʻaila, nā uhi, ke kūkulu ʻana, ka lāʻau lapaʻau a me ka meaʻai, textiles, papermaking a me polymers. Polymerization a me nā kahua ʻē aʻe.

Ma hope o ka hui ʻana o ka hydroxyethyl cellulose i ka pena wai?

Ma ke ʻano he surfactant non-ionic, ʻo ka hydroxyethyl cellulose nā waiwai e pili ana i ka mānoanoa, hoʻopaneʻe, hoʻopaʻa, flotation, hana kiʻiʻoniʻoni, hoʻopuehu, mālama wai a hāʻawi i nā colloids pale:

Hiki ke hoʻoheheʻe ʻia ʻo HEC i ka wai wela a i ʻole ka wai anuanu, ʻaʻole e hoʻoheheʻe ʻia i ka wela kiʻekiʻe a i ʻole ka paila ʻana, e hana ana i kahi ākea o ka solubility a me nā ʻano viscosity, a me ka gelling non-thermal;

ʻO ka paʻa wai paʻa ʻelua ʻelua 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 dispersing ability o HEC, akā ʻoi aku ka ikaika o ka colloid pale;

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 hoʻonā electrolyte kiʻekiʻe.

Pehea e hoʻohana ai i ka hydroxyethyl cellulose?

Hoʻohui pololei i ka manawa o ka hana ʻana - ʻo kēia ʻano ka mea maʻalahi a liʻiliʻi ka manawa:

E hoʻomaka i ka hoʻoulu ʻana me ka wikiwiki haʻahaʻa a kānana mālie i ka hydroxyethyl cellulose i loko o ka hopena a hoʻomau i ka hoʻoulu ʻana a hiki i ka pau ʻana o nā ʻāpana āpau. A laila hoʻohui i nā preservatives a me nā mea hoʻohui like ʻole. E like me nā puaʻa, nā mea hoʻopuehu, ammonia, a me nā mea ʻē aʻe. E hoʻoulu a hiki i ka pau ʻana o ka hydroxyethyl cellulose (piʻi nui ka viscosity o ka hopena) ma mua o ka hoʻohui ʻana i nā mea ʻē aʻe i loko o ke ʻano e hoʻokō ai i ka hopena.

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 kahi mea hoʻouluulu kiʻekiʻe, a hiki ke hoʻohana ʻia kekahi mau mea hoʻonāukiuki me ka mana kūpono e mālama i ka hydroxyethyl cellulose i hoʻopuehu like ʻia i loko o ka hoʻonā hiki ke hoʻohana, a hoʻomau i ka hoʻoulu ʻana a hiki i ka hoʻoheheʻe ʻia ʻana i loko o kahi hopena viscous. Eia naʻe, pono e hoʻomaopopo ʻia e hoʻohui ʻia ka mea antifungal i ka waiʻona makuahine i ka hiki.

Nā ʻōlelo aʻoaʻo maikaʻi:

No ka mea, ʻo ka hydroxyethyl cellulose i mālama ʻia i ka ʻili he pauda a i ʻole fibrous paʻa, i ka wā e hoʻomākaukau ai i ka waiʻona makuahine hydroxyethyl cellulose, e hoʻomanaʻo iā ʻoe e hoʻolohe i kēia mau mea:

Ma mua a ma hope o ka hoʻohui ʻana i ka hydroxyethyl cellulose, pono e hoʻoulu ʻia a hiki i ka ʻike piha ʻana o ka hopena;

Pono e kānana ʻia i loko o ka barela hui ʻana me ka mālie, a mai hoʻopili pololei i nā lumps a i ʻole spheroids a me hydroxyethyl cellulose i loko o ka pahu hui;

ʻO ka mahana o ka wai a me ka waiwai pH o ka wai he pilina koʻikoʻi me ka hoʻoheheʻe ʻana o ka hydroxyethyl cellulose, no laila pono e nānā pono iā ia;

Mai hoʻohui i kekahi mau mea alkaline i ka hui ʻana ma mua o kahydroxyethyl cellulosepulu i ka wai. ʻO ka hoʻonui ʻana i ka waiwai pH ma hope o ka hoʻoulu ʻana e kōkua i ka hoʻoheheʻe;

E like me ka hiki, e hoʻohui i ka antifungal agent ma mua;

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 kaumaha), inā ʻaʻole paʻakikī ka inu wai makuahine.