He polymer ka polyanionic cellulose

ʻO ka polyanionic cellulose (PAC) he polymer maoli nō ia, he derivative o cellulose. Loaʻa kēia pūhui hoihoi i nā noi nui ma waena o nā ʻoihana like ʻole ma muli o kāna mau waiwai a me kāna mau hana.

Ke ano o ka Polyanionic Cellulose:

Loaʻa ka polyanionic cellulose mai ka cellulose, ʻo ia kekahi o nā polymers kūlohelohe nui loa ma ka Honua. ʻO ka cellulose kahi polysaccharide laina i haku ʻia me nā ʻāpana hou o ka glucose i hoʻopili pū ʻia e nā paʻa glycosidic β(1→4). Hoʻokumu ia i ka ʻāpana kumu mua o nā paia o nā mea kanu. Hoʻololi ʻia ka cellulose polyanionic, kahi i hoʻololi ʻia ai kekahi o nā pūʻulu hydroxyl o nā kaulahao cellulose me nā hui anionic. Hoʻokomo pinepine kēia mau pūʻulu anionic i ka carboxylate (-COO⁻), sulfonate (-SO₃⁻), a i ʻole nā ​​pūʻulu phosphate (-PO₄⁻). ʻO ka hoʻokomo ʻana o kēia mau pūʻulu anionic e hāʻawi i ka solubility wai a me nā ʻano waiwai ʻē aʻe i makemake ʻia i ka polymer.

Hoʻohui o ka Polyanionic Cellulose:

Hoʻohui pinepine ʻia ka polyanionic cellulose ma o ka hoʻololi kemika o cellulose. Hoʻokahi ʻano hana maʻamau e hoʻopili i ka cellulose me kahi pūhui anhydride ma lalo o nā kūlana kikoʻī e hoʻokomo i nā pūʻulu anionic ma luna o ka iwi kuamoʻo cellulose. ʻO nā kūlana hopena a me ke ʻano o ka anhydride i hoʻohana ʻia e hoʻoholo i ke kiʻekiʻe o ka hoʻololi ʻana (DS) o nā hui anionic ma ke kaulahao cellulose. Loaʻa nā waiwai DS kiʻekiʻe i ka hoʻoheheʻe wai a hoʻomaikaʻi i ka hana ma kekahi mau noi.

Nā waiwai o ka Polyanionic Cellulose:

Hōʻike ka polyanionic cellulose i kekahi mau waiwai kūʻokoʻa e kūpono ai ia no ka nui o nā noi:

Hiki i ka wai: ʻO ka hoʻokomo ʻana i nā pūʻulu anionic e hāʻawi i ka hoʻoheheʻe wai i ka polyanionic cellulose, e ʻae iā ia e hana i nā hoʻonā paʻa a i ʻole ka hoʻopuehu ʻana i ka wai. Hoʻohana nui ʻia kēia waiwai i nā noi i makemake ʻia nā ʻōnaehana wai.

Hoʻololi ʻana a me Rheology: Hoʻohana nui ʻia ka polyanionic cellulose ma ke ʻano he mānoanoa a me ka rheology modifier i nā ʻoihana like ʻole, me ka meaʻai, nā lāʻau lapaʻau, a me nā huahana mālama pilikino. Hāʻawi ia i ka viscosity a hoʻomaikaʻi i ka paʻa a me ke ʻano o nā formulations.

Flocculation and Fluid Loss Control: Ma nā ʻoihana e like me ka ʻaila ʻaila, hoʻohana ʻia ka polyanionic cellulose no kona hiki ke hoʻoheheʻe i nā mea paʻa i hoʻokuʻu ʻia a mālama i ka nalowale o ka wai. Kōkua ia i ka mālama ʻana i ke kūpaʻa o ka luawai a hoʻonui i ka pono o ka wili.

Hoʻohālikelike: Ua kūpono ka polyanionic cellulose me kahi ākea o nā mea ʻē aʻe a me nā mea hoʻohui, e hoʻolilo iā ia i mea maʻalahi no ka hana ʻana i nā noi like ʻole. Hiki ke hoʻokomo maʻalahi i loko o nā ʻōnaehana like ʻole me ka ʻole e hoʻopilikia i nā pilikia.

Biodegradability: Me kona hoʻololi synthetic, polyanionic cellulose e mālama i ka biodegradability inherent o cellulose. Pono kēia hiʻohiʻona no ka hōʻemi ʻana i ka hopena o ke kaiapuni, ʻoi aku hoʻi i nā noi kahi e hopohopo ai ka hoʻokuʻu ʻana.

Nā noi o ka Polyanionic Cellulose:

Loaʻa ka polyanionic cellulose i nā noi like ʻole ma nā ʻoihana he nui:

ʻOihana ʻaila a me nā kinoea: Ma ka ʻoihana aila a me ke kinoea, hoʻohana mau ʻia ʻo PAC ma ke ʻano he viscosifier a me ka hoʻohui ʻana i ka hoʻoheheʻe ʻana i ka wai i nā wai wili. Kōkua ia i ka mālama ʻana i ke kūpaʻa o ka wellbore, hoʻomaikaʻi i ka hoʻomaʻemaʻe puka, a hoʻomaikaʻi i ka pono o ka wili.

ʻOihana Meaʻai: Ma ka ʻoihana meaʻai, lawelawe ʻo PAC ma ke ʻano he mea mānoanoa, stabilizer, a me texturizer i nā huahana like ʻole e like me nā ʻuala, nā lole, nā huahana waiū, a me nā mea ʻono. Hoʻomaikaʻi ia i ka mouthfeel, hoʻonui i ka paʻa, a pale i ka syneresis i nā meaʻai.

ʻO nā lāʻau lapaʻau: Hoʻohana ʻia ka polyanionic cellulose i nā ʻano lāʻau lapaʻau ma ke ʻano he mea hoʻopaʻa, disintegrant, a me ka mea hoʻokuʻu hoʻokuʻu ʻia i nā papa a me nā capsules. Kōkua ia i ka hui pū ʻana o ka papa, hōʻoia i ka hoʻokuʻu ʻana i ka lāʻau lapaʻau like ʻole, a hoʻomaikaʻi i ka hoʻokō ʻana i ka maʻi.

Nā huahana mālama pilikino: Ma nā huahana mālama pilikino, hoʻohana ʻia ʻo PAC ma ke ʻano he mānoanoa, mea hoʻopaneʻe, a me ka emulsion stabilizer i nā huahana e like me nā shampoos, lotions, a me nā ʻaila. Hoʻonui ia i ka viscosity huahana, hoʻomaikaʻi i ke ʻano, a pale i ka hoʻokaʻawale ʻana.

Nā Mea Hana Hana: Hoʻohana ʻia ʻo PAC i ka ʻoihana hana ma ke ʻano he mea mālama wai, mānoanoa, a me ka rheology hoʻololi i nā ʻano hana sima e like me ka mortar, grouts, a me ka plaster. Hoʻonui ia i ka hana, hoʻemi i ka nalowale o ka wai, a hoʻonui i ka pili ʻana i nā substrate.

Ka hopena a me ka hoʻomau ʻana:

ʻOiai ke hāʻawi nei ka polyanionic cellulose i nā pono like ʻole e pili ana i ka hana a me ka hana, pono e noʻonoʻo ʻia kona hopena kūlohelohe. Ma ke ʻano he derivative o cellulose, mālama ʻo PAC i ka biodegradability o kona polymer makua. ʻO ia ke ʻano ma lalo o nā kūlana kūpono, hiki ke wāwahi ʻia ka cellulose polyanionic e nā microorganism i nā huahana ʻino ʻole, e hāʻawi ana i ka hoʻomau ʻana i ke kaiapuni.

Eia kekahi, ʻo ke ʻano hou o ka cellulose e like me ka mea maka no ka PAC synthesis e hāʻawi i nā pono i nā ʻōlelo o ka loaʻa ʻana o nā kumuwaiwai a hoʻemi i ka hilinaʻi ʻana i nā wahie fossil. Ke hoʻomaka nei nā hoʻoikaika ʻana e hoʻomaikaʻi hou i ke kaʻina hana synthesis a hoʻonui i ka biodegradability o nā derivatives polyanionic cellulose e hōʻemi i ko lākou wāwae kaiapuni.

ʻO ka polyanionic cellulose kahi polymer versatile i loaʻa mai ka cellulose, e hāʻawi ana i kahi ākea o nā noi ma nā ʻoihana like ʻole. ʻO kāna mau waiwai kūʻokoʻa, me ka hiki ke hoʻoheheʻe ʻia i ka wai, ka hiki ke mānoanoa, ka hoʻohālikelike ʻana, a me ka biodegradability, e lilo ia i mea waiwai nui i nā ʻano hana he nui. ʻOiai e hāʻawi ana i nā pono hana koʻikoʻi, ke hoʻomau nei nā hana e hōʻoia i ka polyanionic cellulose a me kāna mau derivatives i hana ʻia a hoʻohana ʻia ma ke ʻano kūpono o ke kaiapuni, a laila e kaulike ana i nā pono ʻoihana me nā pahuhopu hoʻomau.