E kālele ana i nā ethers Cellulose

He aha ka ʻokoʻa ma waena o ka hydroxyethyl cellulose a me ka ethyl cellulose

ʻAʻole hiki i ka poʻe he nui ke ʻike i ka ʻokoʻa ma waena o ka hydroxyethyl cellulose a me ka ethyl cellulose. ʻElua mau mea like ʻole ka Hydroxyethyl cellulose a me ka ethyl cellulose. Loaʻa iā lākou nā ʻano penei.

1 Hydroxyethyl cellulose:
Ma ke ʻano he surfactant non-ionic, me ka hoʻomānoanoa, ka hoʻokuʻu ʻana, ka nakinaki ʻana, ka flotation, ka hana ʻana i nā kiʻiʻoniʻoni, ka hoʻopuehu ʻana, ka mālama ʻana i ka wai a me ka hāʻawi ʻana i nā colloids pale, loaʻa iā ia nā waiwai penei:
1. Hiki ke hoʻoheheʻe ʻia ʻo HEC i ka wai wela a anuanu paha, a ʻaʻole e hoʻopūʻiwa i ka mahana kiʻekiʻe a i ʻole ka paila ʻana, e loaʻa ai iā ia kahi ākea 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 ʻano polymers wai-soluble ʻē aʻe, surfactants a me nā paʻakai, a he mea hoʻomānoanoa colloidal maikaʻi loa e loaʻa ana nā hopena electrolyte 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 colloid pale ka mea ikaika loa.

2 ʻEtila kelulose
He ʻetera cellulose non-ionic ia i hoʻoheheʻe ʻole ʻia i ka wai akā hoʻoheheʻe ʻia i nā mea hoʻoheheʻe organik. Loaʻa iā ia nā ʻano penei:

1. ʻAʻole maʻalahi ke puhi.
2. Paʻa maikaʻi ka wela a me ka thermoplasticity maikaʻi loa.
3. ʻAʻohe loli i ka lā.
4. Maikaʻi ka maʻalahi.
5. Nā waiwai dielectric maikaʻi.
6. He kūpaʻa alkali maikaʻi loa a me ke kūpaʻa waikawa nāwaliwali.
7. Hana maikaʻi anti-kahiko.
8. Kū'ē maika'i i ka pa'akai, ke anu a me ka omo wai.
9. Paʻa i nā kemika, mālama lōʻihi me ka ʻole o ka pala.
10. Kūlike me nā resins he nui a me ka hoʻohālikelike maikaʻi me nā plasticizers āpau.
11. He mea maʻalahi ke hoʻololi i ke kala ma lalo o ke kaiapuni alkaline ikaika a me nā kūlana wela.


Ka manawa hoʻouna: Nov-15-2022
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