Pena, i kapa ʻia ma Kina he pena. Ua uhi ʻia ka mea i kapa ʻia he pena ma luna o ka ʻili o ka mea e pale ʻia a hoʻonaninani ʻia paha, a hiki ke hana i kahi ʻili hoʻomau e hoʻopaʻa pono ʻia i ka mea e uhi ʻia.
He aha ka Hydroxyethyl Cellulose?
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 hopena etherification o ka alkaline cellulose a me ka ethylene oxide (a i ʻole chlorohydrin), no nā Nonionic soluble cellulose ethers. ʻOiai 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 ka colloid pale, ua hoʻohana nui ʻia ia i ka ʻimi ʻaila, nā uhi, ke kūkulu ʻana, ka lāʻau lapaʻau, ka meaʻai, ka lole, ka hana pepa a me ka polymer Polymerization a me nā ʻoihana ʻē aʻe.
He aha ka mea e hana ai ke hui 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 lana ʻana, ka hana ʻana i ka ʻili, ka hoʻopuehu ʻana, ka paʻa ʻana o ka wai a me ka hāʻawi ʻana i ke colloid pale:
Hiki ke hoʻoheheʻe ʻia ʻo HEC i ka wai wela a i ʻole ka wai anuanu, i ka mahana kiʻekiʻe a i ʻole ka paila ʻana me ka ʻole o ka ua, no laila he ākea nā ʻano solubility a me ka viscosity, a me ka gelation non-thermal;
ʻOi aku ka nui o ka hiki ke mālama i ka wai ma mua o ka methyl cellulose, a ʻoi aku ka maikaʻi o ke kaohi ʻana 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 ʻo HEC ka mea ʻino loa, akā ʻo ka hiki ke pale colloid ka 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? Pehea e hoʻohui ai?
E hoʻohui pololei i ka wā o ka hana ʻana - ʻo kēia ʻano hana ka mea maʻalahi loa a lawe i ka manawa pōkole loa.
E hoʻohui i ka wai maʻemaʻe i loko o kahi bākeke nui i lako me kahi mea hoʻohuihui ʻokiʻoki kiʻekiʻe. E hoʻomaka e hoʻoulu mau i ka wikiwiki haʻahaʻa a kānana mālie i ka hydroxyethyl cellulose i loko o ka hopena like. E hoʻomau i ka hoʻoulu 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, ka wai 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 ʻāpana ʻē aʻe i loko o ke ʻano no ka hopena.
Ua hoʻolako ʻia me ka waiʻona makuahine
ʻO ia ke hoʻomākaukau mua i ka waiʻona makuahine 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 hana 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 hoʻomau ʻia me ka ʻole o ka hoʻōki ʻana. E 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 fungicide i ka waiʻona makuahine i ka wā hikiwawe loa.
ʻOiai he pauka a paʻa fibrous paha ka hydroxyethyl cellulose i mālama ʻia ma ka ʻili, hoʻomanaʻo ʻo Lihongde iā ʻoe e hoʻolohe i nā mea aʻe i ka wā e hoʻomākaukau ai i ka wai ʻona 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 moakāka loa ʻana o ka hopena.
(2) Pono e kānana mālie ʻia i loko o ka pahu hui ʻana, a mai hoʻokomo i ka nui a i ʻole e hoʻokomo pololei i ka hydroxyethyl cellulose i loko o ka pahu hui.
(3) He pilina koʻikoʻi ko ka mahana o ka wai a me ka waiwai PH i loko o ka wai me ka hoʻoheheʻe ʻia ʻana o ka hydroxyethyl cellulose, no laila pono e uku ʻia ka nānā kūikawā.
(4) Mai hoʻohui i kekahi mau mea alkaline i ka hui ʻana ma mua o ka hoʻomoʻa ʻia ʻana o ka pauka hydroxyethyl cellulose me ka wai. ʻO ka hoʻokiʻekiʻe ʻana i ka pH ma hope o ka pulu ʻana e kōkua i ka hoʻoheheʻe ʻana.
(5) I ka hiki loa, e hoʻohui i ka mea antifungal ma mua
(6) I ka wā e hoʻohana ai i ka hydroxyethyl cellulose viscosity kiʻekiʻe, ʻaʻole pono e ʻoi aku 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.
Ka manawa hoʻouna: Malaki-02-2023