Hoʻohana ʻia ka Hydroxyethyl Cellulose i ka pena

I kēia lā, e kamaʻilio mākou iā ʻoe e pili ana i ka hoʻohana maʻamau o ka hydroxyethyl cellulose i ka pena a me nā uhi. Pena, kapa kuʻuna ma Kina. Hoʻopiliʻia ka mea i kapaʻia he uhi ma kaʻili o ka mea e hoʻomaluʻia aiʻole e hoʻonaniʻia, a hiki ke hana i kahi kiʻiʻoniʻoni mau i hoʻopaʻa paʻaʻia i ka mea e uhiʻia.

He aha ka hydroxyethyl cellulose?

ʻO ka Hydroxyethyl cellulose (HEC), he melemele keʻokeʻo a ʻulaʻula paha, ʻaʻohe ʻala, fibrous a i ʻole pauka paʻa, 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.

He aha ka hopena ke hui ka hydroxyethyl cellulose i ka waipena?

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 mana paʻa wai 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? Pehea e hoʻohui ai?

Hoʻohui pololei i ka manawa o ka hana - ʻo kēia ʻano ka maʻalahi a liʻiliʻi ka manawa.

E hoʻohui i ka wai maʻemaʻe i ka pahu i hoʻolako ʻia me kahi mea hui kiʻekiʻe-shear. 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 hoʻoulu ʻana a pau nā ʻāpana. 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 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 ʻaʻole pono ka mea hoʻouluulu kiʻekiʻe, a hiki ke hoʻohana ʻia kekahi mau mea hoʻonāukiuki me ka mana kūpono e mālama ai 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 koke ʻia ka mea antifungal i ka waiʻona makuahine i ka hiki.

No ka mea ʻo ka hydroxyethyl cellulose i mālama ʻia i ka ʻili he pauka a i ʻole fibrous paʻa, hoʻomanaʻo ʻo Shandong Heda 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 ʻia a hiki i ka ʻike a maopopo loa ka hopena.

(2) Pono e kānana mālie ʻia i loko o ka pahu hui, a ʻaʻole e hoʻopili pololei i ka hydroxyethyl cellulose a me ka hydroxyethyl cellulose i loko o ka pahu hui i nā mea nui a i ʻole ma ke ʻano o nā puʻupuʻu a me nā pōpō.

(3) ʻO ka mahana o ka wai a me ka waiwai pH o ka wai he pili maopopo i ka hoʻoheheʻe ʻana o ka hydroxyethyl cellulose, no laila pono e nānā pono iā ia.

(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 wale nō ma hope o ka pulu ʻana e kōkua i ka hemo ʻana.

(5) E like me ka hiki, e hoʻohui i ka antifungal agent ma mua.

(6) I ka wā e hoʻohana ai 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 paʻakikī ke mālama ʻia ka waiʻona makuahine.