Ke kuleana o ka hydroxyethyl cellulose (HEC) i nā uhi ʻana!

ʻO ka Hydroxyethyl cellulose (HEC), he keʻokeʻo a melemele māmā paha, ʻala ʻole, ʻaʻohe ʻawaʻawa fibrous a pauka paʻa paha, 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 ko HEC no ka hoʻomānoanoa, ka hoʻokuʻu ʻana, ka hoʻopuehu ʻana, ka emulsifying, ka hoʻopaʻa ʻana, ka hana ʻana i nā kiʻiʻoniʻoni, ka pale ʻana i ka makū a me ka hāʻawi ʻana i nā colloids pale, ua hoʻohana nui ʻia ia i ka ʻimi ʻaila, nā uhi, ke kūkulu ʻana, ka lāʻau lapaʻau a me ka meaʻai, nā lole, ka hana pepa a me nā polymers. Polymerization a me nā kahua ʻē aʻe.

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

Ma ke ʻano he surfactant non-ionic, loaʻa i ka hydroxyethyl cellulose nā waiwai aʻe ma waho aʻe o ka hoʻomānoanoa, ka hoʻokuʻu ʻana, ka nakinaki ʻana, ka flotation, ka hana ʻana i nā kiʻiʻoniʻoni, ka hoʻopuehu ʻana, ka paʻa ʻana o ka wai a me ka hāʻawi ʻana i nā colloids pale:

Hiki ke hoʻoheheʻe ʻia ʻo HEC i ka wai wela a anu paha, a ʻaʻole e hoʻopūʻiwa i ka mahana kiʻekiʻe a i ʻole ka paila ʻana, e loaʻa ai iā ia kahi ākea o nā ʻano solubility a me ka viscosity, a me ka gelling non-thermal;

ʻOi aku ka pālua o ka hiki ke paʻa i ka wai ma mua o ka methyl cellulose, a ʻoi aku ka maikaʻi o ke kaʻina hana o ke kahe ʻana;

Ke hoʻohālikelike ʻia me ka methyl cellulose i ʻike ʻia a me ka hydroxypropyl methyl cellulose, ʻo ka hiki ke hoʻopuehu ʻia o HEC ka mea ʻino loa, akā ʻo ka hiki ke pale colloid ka mea ikaika loa;

He non-ionic ia a hiki ke noho pū me nā ʻano polymers ʻē aʻe e hiki ke hoʻoheheʻe ʻia i ka wai, nā surfactants, a me nā paʻakai. He mea hoʻomānoanoa colloidal maikaʻi loa ia no nā hopena electrolyte kiʻekiʻe.

Pehea e hoʻohana ai i ka hydroxyethyl cellulose?

E hoʻohui pololei i ka manawa o ka hana ʻana - ʻo kēia ʻano hana ka mea maʻalahi loa a ʻaʻole e lawe i ka manawa liʻiliʻi:

E hoʻomaka i ka hoʻoulu mau 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 pulu ʻana o nā ʻāpana āpau. A laila e hoʻohui i nā mea mālama a me nā mea hoʻohui like ʻole. E like me nā pigments, nā mea kōkua hoʻopuehu, ammonia, a pēlā aku. E hoʻoulu a hiki i ka wā e hoʻoheheʻe loa ʻia ai ka hydroxyethyl cellulose āpau (piʻi nui ka viscosity o ka hopena) ma mua o ka hoʻohui ʻana i nā mea ʻē aʻe i loko o ke ʻano hana e hoʻokō i ka hopena.

Ua hoʻolako ʻia me ka waiʻona makuahine

ʻO ia ke hoʻomākaukau mua i kahi wai momona me ka nui o ka hoʻohuihui ʻana, a laila hoʻohui i ka huahana. ʻO ka pōmaikaʻi o kēia ʻano hana, ʻoi aku ka maʻalahi o ka loli 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 hana me ka hapa nui o nā ʻanuʻu ma ke ʻano 1; ʻo ka ʻokoʻa, ʻaʻohe pono no kahi mea hoʻonāukiuki kiʻekiʻe, a ʻo kekahi mau mea hoʻonāukiuki me ka mana lawa e mālama i ka hydroxyethyl cellulose i hoʻopuehu like ʻia i loko o ka hopena hiki ke hoʻohana ʻia, a hoʻomau i ka hoʻoulu a hiki i ka wā e hoʻoheheʻe loa ʻia ai i loko o kahi hopena viscous. Eia nō naʻe, pono e hoʻomaopopo ʻia e pono e hoʻohui ʻia ka mea antifungal i ka wai momona makuahine i ka hikiwawe loa.

Nā ʻōlelo aʻoaʻo lokomaikaʻi:

ʻOiai he pauka a he fibrous paʻa paha ka hydroxyethyl cellulose i mālama ʻia ma ka ʻili, i ka wā e hoʻomākaukau ai i ka wai ʻona makuahine hydroxyethyl cellulose, e hoʻomanaʻo iā ʻoe e hoʻolohe i nā mea aʻe:

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

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

He pilina koʻikoʻi ko ka mahana o ka wai a me ka waiwai pH o ka wai me ka hoʻoheheʻe ʻia ʻana o ka hydroxyethyl cellulose, no laila e pono e uku ʻia ka nānā kūikawā iā ia;

Mai hoʻohui i kekahi mau mea alkaline i ka hui ʻana ma mua o ka hoʻohana ʻanahydroxyethyl celluloseua hoʻomoʻa ʻia ka pauka me ka wai. ʻO ka hoʻokiʻekiʻe ʻana i ka waiwai pH ma hope o ka hoʻomoʻa ʻana e kōkua i ka hoʻoheheʻe ʻana;

I ka hiki ke hiki, e hoʻohui i ka mea antifungal ma mua;

I ka hoʻohana ʻana i ka hydroxyethyl cellulose viscosity kiʻekiʻe, ʻaʻole pono ke kiʻekiʻe o ka nui o ka waiʻona makuahine ma mua o 2.5-3% (ma ke kaumaha), a i ʻole e paʻakikī ka lawelawe ʻana i ka waiʻona makuahine.