Focus on Cellulose ethers

Pehea e hoʻohui ai i ka Hydroxyethyl Cellulose i ka pena

Hydroxyethyl Cellulose (HEC) He nui kona mau hana, e like me: mānoanoa, hoʻopaneʻe, hoʻopaʻa, emulsifying, hana kiʻiʻoniʻoni, hoʻopaʻa, hoʻopuehu, mālama i ka wai, a hana i nā colloids pale. Hiki ke hoʻoheheʻe ʻia i loko o ka wai wela a i ʻole ka wai anuanu, hiki ke hoʻopili ʻia i loko o nā hopena i loko o kahi ākea o nā viscosities, a he kūpaʻa maikaʻi loa i nā electrolytes dissolved.

ala hoʻokahi)
Hoʻohui pololei i ka wā e wili ai i ka puaʻa:

1. E hoʻohui i ka wai hoʻomaʻemaʻe kūpono i loko o kahi bākeke nui i hoʻolako ʻia me kahi mea hoʻoulu kiʻekiʻe (ʻo ka mea maʻamau, hoʻohui ʻia ka ethylene glycol, ka mea hoʻomaʻemaʻe a me ka mea hana kiʻiʻoniʻoni i kēia kaʻina).
2. E hoʻomaka i ka hoʻoulu ʻana me ka māmā haʻahaʻa a kānana mālie i ka hydroxyethyl cellulose i loko o ka hopena.
3. E hoʻomau i ka hoʻoulu ʻana a hiki i ka pau ʻana o nā ʻāpana āpau.
4. A laila e hoʻohui i ka antifungal agent, alkaline additives e like me ka pigment dispersing aids, ka wai amonia.
5. E hoʻoulu a hiki i ka pau ʻana o ka hydroxyethyl cellulose (e piʻi nui ka viscosity o ka hopena) ma mua o ka hoʻohui ʻana i nā mea ʻē aʻe i loko o ke kumu, a wili a lilo i pena.

Hana ʻelua)
Hoʻolako ʻia me ka waiʻona makuahine no ka hoʻohana ʻana:

ʻO kēia ʻano hana ka hoʻomākaukau mua ʻana i ka waiʻona makuahine me ka ʻoi aku ka kiʻekiʻe, a laila hoʻohui i ka pena latex. ʻO ka maikaʻi o kēia ʻano hana ʻoi aku ka maʻalahi a hiki ke hoʻohui pololei ʻia i ka pena i hoʻopau ʻia, akā pono ke mālama pono. Ua like nā ʻanuʻu me nā ʻanuʻu 1-4 ma ke ʻano (1), ʻo ka ʻokoʻa ʻaʻole pono ka mea hoʻouluulu kiʻekiʻe, a ʻo kekahi mau mea hoʻouluulu me ka mana kūpono e mālama i ka hydroxyethyl cellulose i hoʻopuehu like ʻia i loko o ka hopena hiki ke hoʻohana ʻia. . E hoʻomau i ka hoʻoulu ʻana a hiki i ka hoʻoheheʻe ʻia ʻana i loko o kahi solution viscous. Pono e hoʻomaopopo ʻia e hoʻohui ʻia ka mea antifungal i ka waiʻona makuahine i ka hiki.

Kaʻina (3)
No ka porridge-like phenology:

No ka mea ʻo nā mea hoʻoheheʻe kūlohelohe he mau mea hoʻoheheʻe maikaʻi ʻole no ka hydroxyethyl cellulose, hiki ke hoʻohana ʻia kēia mau mea hoʻoheheʻe organik e hoʻomākaukau ai i ka porridge. ʻO nā mea hoʻoheheʻe kūlohelohe i hoʻohana pinepine ʻia he wai kūlohelohe e like me ka ethylene glycol, propylene glycol, a me nā mea hana kiʻiʻoniʻoni (e laʻa, hexanediol a i ʻole Butyl CARBITOL acetate) i nā hana pena. He mea hoʻoheheʻe maikaʻi ʻole ka wai hau, no laila hoʻohana pinepine ʻia ka wai hau me nā wai kūlohelohe e hoʻomākaukau ai i ka porridge.

Hiki ke hoʻohui pololei ʻia ka hydroxyethyl cellulose e like me ka porridge i ka pena. Ua lawa pono ka pehu o ka hydroxyethyl cellulose i loko o ka mokuʻāina porridge. Ke hoʻohui ʻia i ka pena, hoʻoheheʻe koke ia a mānoanoa. Ma hope o ka hoʻohui ʻana, pono e hoʻomau i ka hoʻoulu ʻana a hiki i ka pau ʻana o ka hydroxyethyl cellulose a hoʻopau like.

ʻO ka maʻamau, ua hui pū ʻia ka porridge me ʻeono ʻāpana o ka solvent organik a i ʻole ka wai hau a me kahi ʻāpana o ka hydroxyethyl cellulose. Ma hope o 5-30 mau minuke, e hydrolyzed ka hydroxyethyl cellulose a pehu maopopo. I ke kauwela, kiʻekiʻe loa ka mahana o ka wai, a ʻaʻole kūpono ia no ka porridge.

Nā mea e pono ai ka nānā ʻana i ka wā e hoʻomākaukau ai i ka waiʻona makuahine hydroxyethyl cellulose:

ʻO ka Hydroxyethyl cellulose ka mea maʻamau i ka pauka a me nā mea granular. I ka wā e ʻike ʻia ai kēia mau mea, maʻalahi ke mālama a hoʻoheheʻe ʻia i ka wai.

1. Ma mua a ma hope o ka hoʻohui ʻana i ka hydroxyethyl cellulose, e hoʻoikaika mau a hiki i ka ʻike ʻana o ka hopena.
2. Pono e kānana mālie ʻia i loko o ka pahu hui. Mai hoʻohui pololei i ka hydroxyethyl cellulose i hana ʻia i mau puʻupuʻu a i ʻole pōpō i loko o ka pahu hui.
3. ʻO ka mahana o ka wai a me ka pH waiwai o ka wai he pilina maopopo me ka hoʻoheheʻe ʻana o ka hydroxyethyl cellulose, no laila pono e nānā pono iā ia.
4. 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 wale nō ma hope o ka pulu ʻana e kōkua i ka hemo ʻana.
5. E like me ka hiki, e hoʻohui i ka lāʻau antifungal i ka wā hiki.
6. I ka hoʻohana ʻana i ka hydroxyethyl cellulose kiʻekiʻe-viscosity, ʻaʻole pono ke kiʻekiʻe o ka waiʻona makuahine ma mua o 2.5-3% (ma ke kaumaha), inā ʻaʻole e paʻakikī ka inu ʻana o ka makuahine.


Ka manawa hoʻouna: Nov-15-2022
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