ʻO ka Hydroxyethyl cellulose (HEC) he mea paʻa fibrous a pauka paha keʻokeʻo a melemele māmā paha, ʻaʻohe ʻala, ʻaʻohe ʻawaʻawa i hoʻomākaukau ʻia e ka etherification o ka cellulose alkaline a me ka ethylene oxide (a i ʻole chlorohydrin). ʻO nā ethers cellulose soluble nonionic. No ka mea, he mau waiwai maikaʻi ko HEC no ka hoʻomānoanoa ʻana, 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, nā lāʻau lapaʻau a me ka meaʻai, nā lole, ka hana pepa a me nā polymers. Polymerization a me nā kahua ʻē aʻe. He paʻa ʻole ka Hydroxyethyl cellulose ma ka mahana maʻamau a me ke kaomi, e pale ana i ka makū, ka wela, a me ke kiʻekiʻe o ka mahana, a he solubility paʻakai maikaʻi loa no nā dielectrics. ʻAe ʻia kāna hopena wai e loaʻa i nā paʻakai kiʻekiʻe a paʻa.
Nā kuhikuhi
E hui pololei i ka hana ʻana
1. E hoʻohui i ka wai maʻemaʻe i loko o kahi bākeke nui i lako me ka mīkini wili ʻokiʻoki kiʻekiʻe.
2. E hoʻomaka e hoʻowali mau i ka wikiwiki haʻahaʻa a kānana mālie i ka hydroxyethyl cellulose i loko o ka hopena like.
3. E hoʻomau i ka hoʻowali a hiki i ka pulu ʻana o nā ʻāpana āpau.
4. A laila e hoʻohui i nā mea antifungal, nā mea hoʻohui alkaline e like me nā pigments, nā mea kōkua hoʻopuehu, ka wai ammonia.
5. E hoʻowali a hiki i ka wā e hoʻoheheʻe loa ʻia ai ka hydroxyethyl cellulose (piʻi nui ka mānoanoa o ka hopena) ma mua o ka hoʻohui ʻana i nā mea ʻē aʻe i loko o ke ʻano hana, a wili a hiki i ka huahana i pau.
Ua hoʻolako ʻia me ka waiʻona makuahine
ʻO kēia ke ʻano hana, ʻo ia ka hoʻomākaukau mua ʻana i kahi wai momona makuahine me ka nui o ka hoʻohuihui ʻana, a laila hoʻohui iā ia i ka pena latex. ʻO ka pōmaikaʻi o kēia ʻano hana, ʻoi aku ka maʻalahi o kona loli a hiki ke hoʻohui pololei ʻia i ka pena i hoʻopau ʻia, akā pono e mālama pono ʻia. Ua like nā ʻanuʻu me nā ʻanuʻu 1-4 ma ke ʻano hana 1, koe wale nō ka hoʻoulu nui ʻana ʻaʻole pono e hoʻoheheʻe loa ʻia i loko o kahi hopena viscous.
E akahele
ʻOiai he pauka a he cellulose paʻa paha ka hydroxyethyl cellulose i mālama ʻia ma ka ʻili, he maʻalahi ke lawelawe a hoʻoheheʻe ʻia i ka wai inā e ʻike ʻia nā mea aʻe.
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 kāwili. Mai hoʻohui pololei i ka hydroxyethyl cellulose i hana ʻia i mau puʻupuʻu a i ʻole nā pōpō i loko o ka pahu kāwili i nā nui he nui a pololei paha.
3. 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.
4. Mai hoʻohui i kekahi mau mea alkaline i ka hui ʻana ma mua o ka hoʻomehana ʻia ʻana o ka pauka hydroxyethyl cellulose e ka wai. He mea kōkua ka hoʻokiʻekiʻe ʻana i ka waiwai PH ma hope o ka hoʻomehana ʻana no ka hoʻoheheʻe ʻana.
5. I ka hiki ʻana, e hoʻohui i ka mea antifungal i ka wā hikiwawe loa.
6. I ka wā e hoʻohana ai i ka hydroxyethyl cellulose kiʻekiʻe-viscosity, ʻaʻole pono ke kiʻekiʻe o ka nui o ka waiʻona makuahine ma mua o 2.5-3%, inā ʻaʻole paʻakikī ka hana ʻana i ka waiʻona makuahine. ʻAʻole maʻalahi ka hana ʻana i nā puʻupuʻu a i ʻole nā spheres o ka hydroxyethyl cellulose i mālama ʻia ma hope o ka mālama ʻana, a ʻaʻole ia e hana i nā colloids spherical insoluble ma hope o ka hoʻohui ʻana i ka wai.
Ka manawa hoʻouna: Nov-11-2022