ʻO ka Hydroxyethyl cellulose kahi pae viscosity waena a kiʻekiʻe o ka cellulose ether, i hoʻohana ʻia ma ke ʻano he thickener a me ka stabilizer no nā uhi wai, ʻoiai ke kiʻekiʻe ka viscosity mālama a haʻahaʻa ka viscosity noi. He maʻalahi ka hoʻopuehu ʻana o ka Cellulose ether i ka wai anuanu me ka waiwai pH ≤ 7, akā maʻalahi ka hoʻohuihui ʻana i loko o ka wai alkaline me ka waiwai pH ≥ 7.5, no laila pono mākou e hoʻolohe i ka dispersibility o ka cellulose ether.
Nā hiʻohiʻona a me nā hoʻohana o ka hydroxyethyl cellulose:
1. ʻO ka mea hoʻomānoanoa wai non-ionic anti-enzyme, hiki ke hoʻohana ʻia i kahi ākea o ka waiwai pH (PH = 2-12).
2. Maʻalahi e hoʻopuehu, hiki ke hoʻohui pololei ʻia ma ke ʻano o ka pauka maloʻo a i ʻole ma ke ʻano o ka slurry i ka wā e wili ai i nā pigments a me nā mea hoʻopihapiha.
3. Kūkulu maikaʻi loa. Loaʻa iā ia nā pono o ka mālama ʻana i ka hana, ʻaʻole maʻalahi ke kahe a kau ʻia, a maikaʻi ke kūpaʻa ʻana i ka pīpī ʻana.
4. Hoʻohālikelike maikaʻi me nā ʻano surfactants a me nā preservatives i hoʻohana ʻia i ka pena latex.
5. Paʻa ka mānoanoa o ka mālama ʻana, hiki ke pale i ka emi ʻana o ka mānoanoa o ka pena latex ma muli o ka palaho ʻana o nā enzymes i loko o ka hydroxyethyl cellulose maʻamau.
Nā Waiwai o Hydroxyethyl Cellulose
He polymer wai-soluble ʻole ka Hydroxyethyl cellulose ether. He pauka keʻokeʻo a melemele māmā paha e kahe maʻalahi ana. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka hapa nui o nā mea hoʻoheheʻe organik.
1. Hiki ke hoʻoheheʻe ʻia ʻo HEC i ka wai wela a i ʻole ka wai anuanu, a ʻaʻole ia e hoʻopūʻiwa i ka mahana kiʻekiʻe a i ʻole ka paila ʻana, ʻo ia hoʻi ka nui o nā ʻano solubility a me ka viscosity, a me ka gelation non-thermal.
2. He non-ionic a hiki ke noho pū me nā polymers wai-soluble ʻē aʻe, nā surfactants, a me nā paʻakai. He mea hoʻomānoanoa colloidal maikaʻi loa ia no nā hopena e loaʻa ana nā electrolytes kiʻekiʻe.
3. ʻOi aku ka nui o ka hiki ke mālama i ka wai ma mua o ka methyl cellulose, a ʻoi aku ka maikaʻi o ka hoʻoponopono ʻana i ke kahe ʻana.
4. Ke hoʻohālikelike ʻia me ka methyl cellulose i ʻike ʻia a me ka hydroxypropyl methyl cellulose, ʻo ka hiki ke hoʻopuehu ʻia o HEC ka mea ʻino loa, akā ʻo ka hiki ke pale colloid ka mea ikaika loa (kala).
Mānoanoa
Hoʻopilikia i ka hana, e like me: ka coatability, ke kū'ē'ē'ē'ē'e, ke kū'ē'ē'e'e'e'e'e; hiki i ke'ano pūnaewele kūikawā o ka cellulose ether ke ho'opa'a i ka pauka i loko o ka'ōnaehana uhi, e ho'olohi i kona noho'ana, a e loa'a i ka'ōnaehana ka hopena mālama maika'i a'e.
Pale wai maikaʻi
Ma hope o ka maloʻo loa ʻana o ka ʻili pena, he kūpaʻa wai maikaʻi loa ia. Hōʻike kūikawā kēia i ka waiwai o kona kūpaʻa wai i loko o ka ʻōnaehana hoʻohui PVC kiʻekiʻe. Mai nā ʻano hana haole a Kina, ma kēia ʻōnaehana PVC kiʻekiʻe, ʻo ka nui o ka cellulose ether i hoʻohui ʻia he 4-6‰.
ka mālama wai maikaʻi loa
Hiki i ka Hydroxyethyl cellulose ke hoʻolōʻihi i ka manawa hōʻike a kāohi i ka manawa maloʻo e loaʻa ai ka hoʻokumu ʻana o kahi kiʻiʻoniʻoni maikaʻi aʻe; i waena o lākou, ʻo ka paʻa ʻana o ka wai o ka methyl cellulose a me ka hypromellose e hāʻule nui ana ma luna o 40 ° C, a manaʻoʻiʻo kekahi mau noiʻi haole e hiki ke hoʻemi ʻia e 50%, ʻo ka hiki ke loaʻa nā pilikia i ke kauwela a me ke kiʻekiʻe o ka mahana e hoʻonui nui ʻia.
Paʻa maikaʻi e hōʻemi i ka flocculation o ka pena
Hoʻopau i ka sedimentation, syneresis a me ka flocculation; ʻoiai, ʻo ka hydroxyethyl cellulose ether kahi ʻano huahana non-ionic. ʻAʻole ia e pane me nā mea hoʻohui like ʻole i loko o ka ʻōnaehana.
Hoʻohālikelike maikaʻi me ka ʻōnaehana multi-color
Hoʻokūkū maikaʻi loa o nā mea hoʻoluʻu, nā pigments a me nā mea hoʻopihapiha; ʻO ka hydroxyethyl cellulose ether ka hoʻomohala kala maikaʻi loa, akā ma hope o ka hoʻololi ʻana, e like me ka methyl a me ka ethyl, e loaʻa nā pōʻino huna o ka hoʻokūkū pigment.
Hoʻohālikelike maikaʻi me nā mea maka like ʻole
Hiki ke hoʻohana ʻia i loko o nā ʻōnaehana hoʻohuihui uhi like ʻole.
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Ka manawa hoʻouna: Pepeluali-02-2023