ʻO ka Hydroxyethyl cellulose (HEC) he melemele keʻokeʻo a māmā paha, ʻaʻohe ʻala, ʻaʻohe mea ʻawaʻawa a i ʻole ka pauka paʻa, i hana ʻia me nā linters pulupulu maka a i ʻole ka pulp i hoʻomaʻemaʻe ʻia i hoʻonā ʻia i loko o 30% wai alkali, lawe ʻia a kaomi ʻia ma hope o ka hapalua hola, E kaomi a hiki i ka ratio. ʻO ka wai alkaline hiki i 1: 2.8, a laila eʻoki. Hoʻomākaukau ʻia ia e ka etherification reaction a no ka non-ionic soluble cellulose ethers. He mea mānoanoa nui ka Hydroxyethyl cellulose i ka pena latex. E noʻonoʻo kākou i ka hoʻohana ʻana i ka hydroxyethyl cellulose HEC i ka pena latex a me ka mālama ʻana.
1. Hoʻolako ʻia me ka waiʻona makuahine no ka hoʻohana ʻana: e hoʻohana mua i ka hydroxyethyl cellulose HEC no ka hoʻomākaukau ʻana i ka waiʻona makuahine me kahi kiʻekiʻe 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 2; ʻO ka ʻokoʻa, ʻaʻohe pono o ka mea hoʻouluulu kiʻekiʻe, a ʻo kekahi mau mea hoʻouluulu 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 hoʻokuʻu ʻana a hiki i ka hoʻoheheʻe ʻia ʻana i loko o kahi hopena viscous. Eia nō naʻe, pono e hoʻomaopopo ʻia e hoʻohui ʻia ka fungicide i ka waiʻona makuahine i ka hiki.
2. Hoʻohui pololei i ka wā hana: ʻo kēia ʻano ka mea maʻalahi a lawe i ka manawa pōkole loa. E hoʻohui i ka wai maʻemaʻe i loko o kahi bākeke nui i hoʻolako ʻia me kahi hui ʻoki kiʻekiʻe. 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 hoʻouluʻana a hiki i ka pauʻana o nā'āpana. 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 HEC (e piʻi aʻe ka viscosity o ka hopena) a laila hoʻohui i nā mea ʻē aʻe i loko o ke ʻano no ka pane ʻana.
Hoʻomalu;
(1) I ka hoʻohana ʻana i ka high-viscosity hydroxyethyl cellulose HEC, ʻaʻole pono ke kiʻekiʻe o ka waiʻona makuahine ma mua o 2.5-3% (ma ke kaupaona), inā ʻaʻole e paʻakikī ke mālama ʻana i ka waiʻona makuahine.
(2) Ma mua a ma hope o ka hoʻohui ʻana i ka hydroxyethyl cellulose HEC, pono e hoʻoulu mau ʻia a hiki i ka ʻike a maopopo loa ka hopena.
(3) E like me ka mea hiki, e hoʻohui i ka antifungal agent ma mua.
(4) Loaʻa ka pilina o ka wai wela a me ka waiwai pH o ka wai i ka hemo ʻana o ka hydroxyethyl cellulose, no laila pono ke nānā pono.
(5) 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 ma hope o ka wai ʻana e kōkua i ka hoʻoheheʻe.
(6) Pono e kānana mālie ʻia i loko o ka pahu hui, ʻaʻole e hoʻohui i nā mea nui a i ʻole e hoʻohui pololei i ka hydroxyethyl cellulose i hoʻokumu ʻia i nā puʻupuʻu a me nā pōpō i loko o ka pahu hui.
ʻO nā mea nui e pili ana i ka viscosity o ka pena latex:
1 Ka ʻinoʻino o ka mānoanoa e nā microorganism.
2 Ma ke kaʻina hana pena, inā pololei ke kaʻina o ka hoʻohui ʻana i ka mānoanoa.
3 Inā kūpono ka nui o ka mea hoʻoulu ʻili a me ka nui o ka wai i loko o ke ʻano pena.
4 ʻO ka lakio o ka nui o nā mānoanoa kūlohelohe ʻē aʻe i ka nui o ka hydroxyethyl cellulose i loko o ka hana pena.
5 Ke hoʻokumu ʻia ka latex, ka maʻiʻo o nā catalysts koena a me nā mea ʻona ʻē aʻe.
6 Kiʻekiʻe loa ka wela i ka wā e hoʻopuehu ʻia ai ma muli o ka hoʻoulu ʻana.
7 ʻOi aku ka nui o nā ʻōhū ea i loko o ka pena, ʻoi aku ka kiʻekiʻe o ka viscosity.
Hoʻololi iki ka viscosity o ka hydroxyethyl cellulose HEC i ka pae pH o 2-12, akā emi ka viscosity ma mua o kēia pae. Loaʻa iā ia nā waiwai o ka mānoanoa, hoʻopaneʻe, hoʻopaʻa, emulsifying, dispersing, mālama i ka maʻa a me ka pale ʻana i ka colloid. Hiki ke hoʻomākaukau ʻia nā hoʻonā i nā pae viscosity like ʻole. Paʻa ʻole ma lalo o ka maʻamau a me ke kaomi, e pale i ka haʻahaʻa, ka wela, a me ka wela kiʻekiʻe, a loaʻa ka paʻakai paʻakai maikaʻi loa i ka dielectrics, a ua ʻae ʻia kāna ʻano wai e loaʻa i nā paʻakai kiʻekiʻe a paʻa mau.
Ka manawa hoʻouna: Feb-14-2023