Moʻolelo o ka hana ʻana a me ka noiʻi ʻana i nā cellulose Ethers

He moʻolelo lōʻihi ka hana a me ka noiʻi ʻana o ka cellulose ethers, mai ka hopena o ke kenekulia 19. ʻO ka cellulose ether mua, ka ethyl cellulose, i hoʻomohala ʻia i ka makahiki 1860 e ka mea loea Pelekane ʻo Alexander Parkes. I ka hoʻomaka ʻana o nā makahiki 1900, ua hoʻomohala ʻia kekahi cellulose ether, methyl cellulose, e ka mea loea Kelemania ʻo Arthur Eichengrün.

I ke kenekulia 20, ua hoʻonui nui ʻia ka hana ʻana a me ka noiʻi ʻana o cellulose ethers. I nā makahiki 1920, ua hoʻomohala ʻia ka carboxymethyl cellulose (CMC) ma ke ʻano he cellulose ether wai-soluble. Ua ukali ʻia kēia me ka hoʻomohala ʻana o ka hydroxyethyl cellulose (HEC) i nā makahiki 1930, a me ka hydroxypropyl methyl cellulose (HPMC) i nā makahiki 1950. Hoʻohana nui ʻia kēia mau cellulose ethers i kēia lā i nā ʻano ʻoihana, me ka meaʻai, nā lāʻau lapaʻau, nā mea hoʻonaninani, a me ke kūkulu ʻana.

I ka ʻoihana meaʻai, hoʻohana ʻia nā cellulose ethers e like me nā mānoanoa, emulsifiers, a me nā stabilizers. Hoʻohana mau ʻia lākou i nā huahana e like me nā ʻaʻahu saladi, ice cream, a me nā mea i kālua ʻia. I ka ʻoihana lāʻau lapaʻau, hoʻohana ʻia nā cellulose ethers e like me nā binders, disintegrants, a me nā mea hoʻonaninani i nā papa a me nā capsules. I ka ʻoihana hoʻonaninani, hoʻohana ʻia lākou e like me nā mea mānoanoa a me nā emulsifiers i nā ʻaila a me nā lotions. I ka ʻoihana kūkulu hale, hoʻohana ʻia nā cellulose ethers e like me nā mea mālama wai a me nā mea hoʻoikaika hana i ka sima a me ka mortar.

Ke hoʻomau nei ka noiʻi ʻana i nā cellulose ethers a hiki i kēia lā, me ka nānā ʻana i ka hoʻomohala ʻana i nā eter cellulose hou a hoʻomaikaʻi ʻia me nā waiwai a me nā hana i hoʻonui ʻia. ʻO ka holomua o ka ʻenehana ua alakaʻi i ka hoʻomohala ʻana i nā ʻano hana hou no ka hana ʻana i nā cellulose ethers, e like me ka hoʻololi enzymatic a me ka hoʻololi kemika me ka hoʻohana ʻana i nā solvents ʻōmaʻomaʻo. Ke hoʻomau nei ka noiʻi a me ka hoʻomohala ʻana i nā cellulose ethers e manaʻo ʻia e alakaʻi i nā noi hou a me nā mākeke no kēia mau mea maʻalahi i nā makahiki e hiki mai ana.