ʻO ka Hydroxyethyl cellulose kahi mea maʻamau i ka pae viscosity kiʻekiʻe o ka cellulose ether, i hoʻohana ʻia ma ke ʻano he mānoanoa a me ka stabilizer no ka uhi ʻana i ka wai, ʻoi aku ka nui o ka viscosity mālama a haʻahaʻa ka viscosity noi.He mea maʻalahi ka hoʻopuehu ʻana i ka wai anuanu me ka pH ≤ 7, akā maʻalahi ka agglomerate i ka wai alkaline me ka pH waiwai ≥ 7.5, no laila pono mākou e hoʻolohe i ka dispersibility o cellulose ether.
Nā hiʻohiʻona a me ka hoʻohana ʻana o ka hydroxyethyl cellulose:
1. Anti-enzyme non-ionic wai mānoanoa, hiki ke hoʻohana ʻia i kahi ākea o ka waiwai pH (PH=2-12).
2. E maʻalahi e hoʻopuehu, hiki ke hoʻohui pololeiʻia ma keʻano o ka pauka maloʻo aiʻole ma keʻano o ka slurry i ka wā e wili ai i nā puaʻa a me nā mea hoʻopihapiha.
3. Hana maikaʻi.Loaʻa iā ia nā pōmaikaʻi o ka mālama ʻana i ka hana, ʻaʻole maʻalahi i ka kulu a kau ʻana, a me ke kūpaʻa maikaʻi.
4. Hoʻopili maikaʻi me nā surfactants like ʻole a me nā preservatives i hoʻohana ʻia i ka pena latex.
5. Paʻa ka viscosity waihona, hiki ke pale i ka viscosity o ka pena latex mai ka emi ʻana ma muli o ka decomposition o nā enzymes i ka hydroxyethyl cellulose maʻamau.
Nā waiwai o Hydroxyethyl Cellulose
ʻO ka Hydroxyethyl cellulose ether kahi polymer non-ionic water-soluble.He pauda keʻokeʻo a melemele māmā paha e kahe maʻalahi.ʻAʻole hiki ke hoʻoheheʻe ʻia i ka hapa nui o nā mea hoʻoheheʻe organik
1. HEC hiki ke hoʻoheheʻe ʻia i ka wai wela a i ʻole ka wai anuanu, a ʻaʻole e hoʻoheheʻe ʻia i ka wela kiʻekiʻe a i ʻole ka paila ʻana, kahi e loaʻa ai ka nui o ka solubility a me nā ʻano viscosity, a me ka gelation non-thermal.
2. He non-ionic a hiki ke noho pū me nā polymers wai-soluble, surfactants, a me nā paʻakai.He mānoanoa colloidal maikaʻi loa ia no nā hopena i loaʻa nā electrolytes 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. Ke 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.
mānoanoa
Hoʻopili i ka hana, e like me: coatability, splash resistance, loss resistance;Hiki i ke kikowaena pūnaewele kūikawā o cellulose ether ke hoʻopaʻa i ka pauka i loko o ka ʻōnaehana uhi, hoʻolōʻihi i kona noho ʻana, a hoʻolilo i ka ʻōnaehana i ka hopena mālama maikaʻi.
Kūleʻa wai maikaʻi
Ma hope o ka maloʻo loa ʻana o ke kiʻi pena, loaʻa iā ia ke kūpaʻa wai maikaʻi loa.Hōʻike maoli kēia i ka waiwai o kona kūpaʻa wai i ka ʻōnaehana hoʻokumu kiʻekiʻe-PVC.Mai ka haole a hiki i ka hana Kina, ma kēia ʻōnaehana PVC kiʻekiʻe, ʻo ka nui o ka cellulose ether i hoʻohui ʻia he 4-6‰.
maikaʻi ka mālama wai
Hiki i ka Hydroxyethyl cellulose ke hoʻolōʻihi i ka manawa hōʻike a hoʻomalu i ka manawa maloʻo e loaʻa ai ka hoʻokumu kiʻiʻoniʻoni maikaʻi;i waena o lākou, ʻo ka paʻa ʻana o ka wai o ka methyl cellulose a me ka hypromellose e hāʻule nui ma luna o 40 ° C, a manaʻo kekahi mau haʻawina haole e hiki ke hoʻemi ʻia e 50%, ʻoi aku ka nui o nā pilikia i ke kauwela a me ke kiʻekiʻe.
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 ʻole ionic.ʻAʻole pane me nā mea hoʻohui like ʻole i ka ʻōnaehana.
Hoʻopili maikaʻi me ka ʻōnaehana kala-nui
Kūpono maikaʻi loa o nā kala, nā puaʻa 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 hūnā ʻia nā pōʻino o ka hoʻohālikelike ʻana i ka puaʻa.
Hoʻopili maikaʻi me nā mea maka
Hiki ke hoʻohana ʻia i loko o nā ʻōnaehana hoʻoheheʻe ʻia.
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Ka manawa hoʻouna: Feb-02-2023