ʻOkoʻa ma waena o CMC a me HEMC

ʻO Carboxymethylcellulose (CMC) a me Hydroxyethyl methylcellulose (HEMC) ʻelua mau ʻano derivatives cellulose i hoʻohana mau ʻia i nā ʻano ʻoihana like ʻole, me ka ʻoihana meaʻai a me nā lāʻau lapaʻau. ʻO ka CMC a me ka HEMC nā polymers wai-soluble i loaʻa mai ka cellulose, akā he mau waiwai like ʻole a hoʻohana ʻia no nā noi like ʻole. Ma kēia ʻatikala, e ʻimi mākou i nā ʻokoʻa ma waena o CMC a me HEMC.

Hoʻolālā Kimia
Ua like ke ano kemika o CMC a me HEMC, no ka mea, he mau hua ia o ka cellulose. Hana ʻia ʻo CMC ma ka hana ʻana i ka cellulose me ka chloroacetic acid e hana ai i nā hui carboxymethyl, ʻoiai ʻo HEMC e hana ʻia ma ka hana ʻana i ka cellulose me ka ethylene oxide a me ka methyl chloride e hana i nā hui hydroxyethyl a me methyl.

Ka hoʻoheheʻe
ʻO kekahi o nā ʻokoʻa nui ma waena o CMC a me HEMC ko lākou solubility i ka wai. Hiki ke hoʻoheheʻe ʻia ʻo CMC i ka wai a hiki ke hana i kahi hopena akaka a ʻoi aku ka haʻahaʻa. ʻAʻole hiki ke hoʻoheheʻe ʻia ka HEMC i ka wai ma mua o ka CMC a koi maʻamau i ka hoʻohana ʻana i ka solvent, e like me ka ethanol a i ʻole isopropyl alcohol, e hoʻoheheʻe loa.

Viscosity
ʻO kekahi ʻokoʻa koʻikoʻi ma waena o CMC a me HEMC ko lākou viscosity. ʻO CMC ʻoi loa ka viscous a hiki ke hana i kahi hopena gel-like mānoanoa ke hoʻoheheʻe ʻia i ka wai. He mea kūpono kēia i ka CMC no ka hoʻohana ʻana i nā noi kahi e koi ʻia ai ka mānoanoa a i ʻole ka gelling, e like me ka ʻoihana meaʻai no ka hana ʻana i nā ʻuala a me nā lole. I ka hoʻohālikelike ʻana, he haʻahaʻa haʻahaʻa ko HEMC ma mua o CMC a hoʻohana maʻamau ʻia ma ke ʻano he mānoanoa a i ʻole rheology modifier i nā noi kahi e koi ʻia ai kahi hopena liʻiliʻi liʻiliʻi.

pH Paʻa
ʻOi aku ka paʻa o CMC ma luna o kahi ākea o nā kumu pH ma mua o HEMC. Paʻa ʻo CMC i nā ʻāpana acidic a me ka alkaline, kahi e kūpono ai no ka hoʻohana ʻana i ka ʻoihana meaʻai, kahi e ʻokoʻa ai nā waiwai pH. I ka hoʻohālikelike ʻana, ʻoi aku ka paʻa o ka HEMC i ka liʻiliʻi o ka waika a hiki i ka neʻe ʻana o ka pH kaiapuni a hiki ke wāwahi i nā koina pH kiʻekiʻe.

Paʻa wela
Paʻa nā CMC a me HEMC ma luna o kahi ākea o nā mahana, akā aia nā ʻokoʻa i ko lākou kūpaʻa wela. ʻOi aku ka paʻa o ka CMC ma mua o HEMC a hiki ke mālama i kāna mau waiwai i nā wela kiʻekiʻe. Hana kēia i ka CMC kūpono no ka hoʻohana ʻana i nā noi kahi e komo ai nā mahana kiʻekiʻe, e like me ka hana ʻana i nā meaʻai bakena. ʻO ka HEMC, ma ka ʻaoʻao ʻē aʻe, he haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa ma mua o CMC a hiki ke wāwahi i nā wela kiʻekiʻe.

Nā noi
Hoʻohana ʻia ʻo CMC a me HEMC i nā noi like ʻole ma nā ʻoihana like ʻole. Hoʻohana pinepine ʻia ʻo CMC ma ke ʻano he mānoanoa, stabilizer, a me ka emulsifier i ka ʻoihana meaʻai no nā huahana e like me ka ice cream, sauces, a me nā lole. Hoʻohana ʻia ia i ka ʻoihana lāʻau lapaʻau ma ke ʻano he mea hoʻopaʻa, disintegrant, a me ka suspending agent. Hoʻohana pinepine ʻia ʻo HEMC ma ke ʻano he mānoanoa, binder, a me rheology modifier i ka ʻoihana kūkulu hale no nā huahana e like me nā pena, nā uhi, a me nā mea hoʻopili. Hoʻohana ʻia ia i ka ʻoihana lāʻau lapaʻau ma ke ʻano he mea hoʻopaʻa, disintegrant, a me ka mea hoʻokuʻu hoʻomau.