Hydroxyethyl cellulose (HEC)he melemele keʻokeʻo a māmā paha, ʻaʻala ʻole, fibrous a pauda paʻa ʻole, i hoʻomākaukau ʻia e ka hopena etherification o ka cellulose alkaline a me ka ethylene oxide (a i ʻole chlorohydrin).Nonionic soluble cellulose ethers.Ma waho aʻe o ka mānoanoa, hoʻopaneʻe, hoʻopaʻa, lana, hana kiʻiʻoniʻoni, hoʻopuehu, mālama wai a hāʻawi i ka colloid pale, loaʻa iā ia nā waiwai penei:
1. Hiki ke hoʻoheheʻe ʻia ʻo HEC i ka wai wela a i ʻole ka wai anuanu, kiʻekiʻe ka wela 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;
2. 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;
3. ʻO ka paʻa wai paʻa ʻelua ʻoi aku ka nui o ka methyl cellulose, a ʻoi aku ka maikaʻi o ka hoʻoponopono kahe ʻana.
4. 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 colloid pale.Ma muli o kāna mau waiwai maikaʻi o ka mānoanoa, hoʻokuʻu, hoʻopuehu, emulsifying, adhering, kiʻiʻoniʻoni, pale i ka wai a me ka hāʻawi ʻana i ka colloid pale, ua hoʻohana nui ʻia ʻo HEC i ka ʻimi ʻaila, nā uhi, ke kūkulu ʻana, ka lāʻau lapaʻau, ka meaʻai, textile, pepa a me ka polymer Polymerization a me nā kula ʻē aʻe.
Nā mea e mālama ai:
No ka mea ʻo ka hydroxyethyl cellulose i mālama ʻia i ka ʻili he pauka a i ʻole cellulose paʻa, maʻalahi ke mālama a hoʻoheheʻe ʻia i loko o ka wai ke mālama ʻia nā mea i lalo.ka
1. Ma mua a ma hope o ka hoʻohui ʻana i ka hydroxyethyl cellulose, pono e hoʻoulu mau ʻia a hiki i ka ʻike a maopopo loa ka hopena.ka
2. Pono e kānana mālie ʻia i loko o ka pahu hui, mai hoʻohui pololei i ka nui o ka hydroxyethyl cellulose a i ʻole hydroxyethyl cellulose i hoʻokumu i nā puʻupuʻu a me nā pōpō i loko o ka pahu hui.ka
3. ʻO ka wela o ka wai a me ka waiwai o ka PH i loko o ka wai he pili maopopo loa i ka hoʻoheheʻe ʻana o ka hydroxyethyl cellulose, no laila pono e uku ʻia.ka
4. Mai hoʻohui i kekahi mau mea alkaline i ka hui ʻana ma mua o ka hoʻomehana ʻia ʻana o ka pauka hydroxyethyl cellulose ma ka wai.ʻO ka hoʻonui ʻana i ka waiwai PH ma hope o ka hoʻomehana ʻana e kōkua i ka hoʻoheheʻe.ka
5. E like me ka hiki, e hoʻohui i ka anti-fungal agent i ka hiki wawe.ka
6. Ke hoʻohana nei i ka hydroxyethyl cellulose kiʻekiʻe-viscosity, ʻaʻole pono ke kiʻekiʻe o ka waiʻona makuahine ma mua o 2.5-3%, i ʻole e paʻakikī ke mālama ʻana i ka waiʻona makuahine.ʻAʻole maʻalahi ka hana ʻana o ka hydroxyethyl cellulose ma hope o ka mālama ʻana i nā puʻupuʻu a i ʻole nā poe, ʻaʻole hoʻi e hana i nā colloid spherical insoluble ma hope o ka hoʻohui ʻana i ka wai.
Ka manawa hoʻouna: Dec-27-2022