EHEC a me MEHEC

ʻO EHEC (ethyl hydroxyethyl cellulose) a me MEHEC (methyl ethyl hydroxyethyl cellulose) ʻelua mau ʻano koʻikoʻi o ka cellulose ethers i hoʻohana mau ʻia i nā ʻoihana like ʻole, me ka ʻoihana pena a me ka ʻoihana uhi. E ʻimi hohonu kākou i kēlā me kēia:

1. EHEC (Ethyl Hydroxyethyl Cellulose):
   • Hoʻolālā Kemika: Loaʻa ka EHEC mai ka cellulose ma o ka hoʻokomo ʻana i nā pūʻulu ethyl a me hydroxyethyl ma luna o ka iwi kuamoʻo cellulose.
   • Nā waiwai a me nā hana:
     • Hiki ke hoʻoheheʻe ʻia ka EHEC i loko o ka wai a hoʻoheheʻe ʻia i nā hāʻina alohilohi.
     • Hana ʻo ia ma ke ʻano he mānoanoa a me ka rheology modifier i loko o nā pena wai a me nā uhi, kaohi ʻana i ka viscosity a me ka hoʻomaikaʻi ʻana i nā waiwai noi.
     • Hāʻawi ʻo EHEC i ke ʻano pseudoplastic a i ʻole ka shear-thinning i ka pena ʻana, ʻo ia hoʻi, e emi ana ka viscosity me ka piʻi ʻana o ka shear rate, e hoʻomaʻamaʻa maʻalahi i ka hoʻohana ʻana a me ka maʻalahi o ka brushability.
   • Nā noi:
     • Hoʻohana nui ʻia ʻo EHEC i nā pena o loko a me waho, nā primers, a me nā uhi e hoʻokō ai i ke kūlike i makemake ʻia, kahe, a me nā waiwai pae.
     • ʻOi aku ka maikaʻi ma nā ʻano hana i koi ʻia ka viscosity kiʻekiʻe ma nā ʻāpana ʻoki haʻahaʻa no ka pale ʻana i ka sag a me ka hoʻomaikaʻi ʻana i ke kiʻiʻoniʻoni.
2. MEHEC (Methyl Ethyl Hydroxyethyl Cellulose):
   • Hoʻolālā Kemika: ʻO MEHEC he cellulose ether i hoʻololi ʻia me ka methyl, ethyl, a me ka hydroxyethyl substituents ma ka iwi kuamoʻo cellulose.
   • Nā waiwai a me nā hana:
     • Hōʻike ka MEHEC i ka solubility like a me nā waiwai rheological i EHEC akā me kekahi mau ʻokoʻa i ka hana.
     • Hāʻawi ia i ka hiki ke hoʻopaʻa wai i hoʻohālikelike ʻia me EHEC, e kūpono loa ia no nā hoʻohua kahi i makemake ʻia ai ka manawa wehe a i ʻole ka hoʻomohala ʻana i ka kala.
     • Hāʻawi ʻo MEHEC i ka hoʻonui ʻana i ka mānoanoa a me ke kūpaʻa ma luna o kahi ākea o ka pH a me nā kūlana wela.
   • Nā noi:
     • ʻIke ʻo MEHEC i ka hoʻohana ʻana i nā pena i hoʻopaʻa ʻia i ka wai, nā ʻili, a me nā mea hana e pono ai ka mālama ʻana i ka wai, mānoanoa, a me ka mana rheological.
     • Hoʻohana pinepine ʻia ia i loko o nā hoʻolālā no nā pena hoʻonaninani, nā ʻili i kālai ʻia, a me nā hoʻopau kūikawā kahi i hoʻolōʻihi ʻia ai ka manawa hana a me nā waiwai kahe i hoʻomaikaʻi ʻia.

ʻO ka EHEC a me ka MEHEC nā cellulose ethers maʻalahi e hāʻawi i nā mea hoʻohālikelike i ka hiki ke hoʻokō i nā hiʻohiʻona hana i makemake ʻia i nā pena wai a me nā uhi. ʻO kā lākou kūlike me nā mea hoʻohui ʻē aʻe, ka maʻalahi o ka hoʻohui ʻana i loko o nā formulations, a me ka hiki ke hoʻonui i nā waiwai koʻikoʻi e like me ka mana viscosity, ka mālama ʻana i ka wai, a me nā waiwai noi e lilo lākou i mea waiwai i ka hoʻokumu ʻana i nā mea hoʻonaninani kiʻekiʻe.