ʻO Hydroxyethyl cellulouse (hec) he meaʻole-initic, initic-iniha-sollable polymer i laweʻia mai cellulose ma o ka hoʻololiʻana o ka cellupuse. Loaʻa ia i ka hoʻohana nuiʻana i nāʻoihana likeʻole ma muli o nā waiwai kūʻokoʻa, e like me ka skickey I nā noi kahi kahi e koʻikoʻi ai ka ph o ph
ʻO ka hikiʻana o ka ph o ka hec e pili ana i kona hiki ke mālama i konaʻano hana kūpono, nā waiwai Rheological, a hana ma waena o nā wahi PH. ʻO kēia kūleʻa he koʻikoʻi e like me nā noi e like me nā huahana mālama pilikino, nā mea hana a me nāʻoihana kūkulu, ma kahi o ka Hale Hana Kūʻai, kahi i loaʻa ai ka BH Of The Bycast.
Kūlana:
ʻO Hec ka mea maʻamau e hoʻouluʻia e ka hanaʻana i nā cellulose me ka olleyne oxde ma lalo o nā kūlana alkaline. ʻO kēia kaʻina hana i ke ala o ke ala o nā hui hydroxyl o ka backbone hope loa me ka hydromixyl (-och2ch2h). ʻO ke kiʻekiʻe o ka hoʻololiʻana (DS) e hōʻike i ka helu maʻamau o nā hui hydroxyheyl ma nā'āpana anhydroglucose ma ke kaula.
Nā waiwai:
SUTUBILITILE: E hoʻomoʻaʻiaʻo Hec i ka wai a me nāʻano i maopopo i nā hopena.
ʻO Viscosity: Hōʻikeʻiaʻo Pseudoplastic a iʻole ka hanaʻana i konaʻano, e pili ana i konaʻano viscosity ma lalo o ke kaumaha. Hana kēia waiwai i nā noi i kahi mea e pono ai ke kaheʻana, e like me nā mea pena a me nā lole.
ʻO SWickening: Hec i hāʻawiʻia i ka viscosity i nā hopena e hoʻoponopono ai, e hana nui ana e like me ka mea nui o nā'āpana likeʻole.
ʻO ka hana kiʻi-hana
ph stabilita o hec
Ua hoʻoiliʻia ka PH ah gaphience o kekahi mau mea, me kaʻano o ka kaila o ka polymer, e pili ana i kahi hui o kahi e lele ana, a me nā mea hoʻohui hou ma ka hoʻolālā.
PH STTATER o HeC i nā PH PH RESTER:
1. ACIDIC PH:
Ma ke kikowaena Acidic PH, ke kūpaʻa maʻamauʻo Hec akā paha ma lalo o ka hydrolysis ma luna o nā manawa lōʻihi ma lalo o nā kūlana Acidic. Eia naʻe, ma ka hapanui o nā noi pono, e like me nā huahana mālama pilikino a me nā lole, kahi i kū aiʻo Acidic Ma waho o PH 3, ka hopena o ka hydrolysis e hoʻonui ana, e alakaʻi ana i kahi haʻahaʻa haʻahaʻa ma ka viscosity a me ka hana. He mea pono e nānā i ka pH o nā hana i loaʻa iā ia a hoʻoponopono iā lākou e pono e mālama i ka paʻa.
2. PH:
Hōʻikeʻo Hec i ka paʻa maikaʻi loa ma lalo o nā kūlana kūpono o nā ph He maʻamau kēiaʻano ph i nā noi he nui, me nā mea kanu, nā mea kanu, nā huahana hale. ʻO Hec-i loaʻa i nā hana i loaʻa i kā lākou viscosity, nā waiwai nui, a me ka hana holoʻokoʻa i loko o kēia pae ph. Eia naʻe,ʻo nā mea like loa e like me ka mahana a me ka ikaika o ka ikaika e hiki ai ke hoʻohālikelike i ka hoʻomau a pono e noʻonoʻoʻia i ka wā e kūkulu ana i ka hoʻolālāʻana.
3. Alkaline pH:
ʻOi aku ka paʻakikī o Hec ma lalo o nā kūlana alkaline i hoʻohālikelikeʻia i ka Acidic a iʻole PH. I nā pae kiʻekiʻe PH PH ʻO Alkaline hydrolysis o ka pilina o ka Eter Ether backbone a me nā hui hydryethyl e hiki ke alakaʻi i ke kaupaonaʻana. No laila, i loko o Alkaline Formulations e like me nā mea hana a iʻole nā mea kūkulu hale hana, nā mea hana'ē aʻe a iʻole nā mea kūʻai aku e makemakeʻia ma luna o Hec.
ʻO nā mea nui e hoʻonui ai i ka ph retability
Hiki i kekahi mau mea ke hoʻopiʻi i ka hopena o ka ph o ka hec:
ʻO ke kiʻekiʻe o ka hoʻololiʻana (DS): Hec me nā kumukūʻai kiʻekiʻe eʻoi aku ka nui o nā hui o ka HydroySl
ʻO ka mahana: Hiki i nā hōʻailona kiʻekiʻe ke hoʻokō i nā hopena o ke kahe, me ka hydrolysis. No laila,ʻo ka mālamaʻana i ke mālamaʻana a me ka hoʻoponoponoʻana i nāʻano hoʻohuloʻia i ke mālama pono ai i ka mālamaʻana i ka pH a me keʻano o nā hana hec-like.
Ka ikaika:ʻO nāʻike kiʻekiʻe loa o nā paʻakai a iʻole nā mea'ē aʻe i hiki ke hopena i ka hikiʻana o nā mea palupalu a me nā pilina Pono e kohoʻia ka ikaika onic e hōʻemi i nā hopena hopena.
Hoʻohui:ʻO ka hoʻohuiʻana i nā hoʻohui e like me nā mea kanu, e mālama i nā mea hana, a iʻole nā mea kūʻai aku e hiki ai i keʻano o ka ph stability. Pono e hoʻohālikelikeʻia ka ho'āʻoʻana e hōʻoia e hōʻoia i ka hoʻohui hoʻohui a me ka paʻa.
Nā noi a me nā manaʻo noʻonoʻo
ʻO ka hoʻomaopopoʻana i ka ph stability o Hec he mea koʻikoʻi no nā mea hana i nāʻoihana likeʻole.
Eia kekahi mau noi noi noi:
ʻO nā huahana mālama pilikino: ma Shampoos, nā mea nui, a me nā'āina, e mālama ana i ka ph i loko o ka nui a me ka hanaʻana i ka maʻi.
Nā Pharmacetititical: Hoʻohanaʻiaʻo Hec i nā kānalua waha,ʻO nā hopena obthalmic, a me nāʻano kumuhana nui. Pono e hanaʻia nāʻano hana a mālamaʻia ma lalo o nā kūlana e mālama ai i nāʻano hec e hōʻoia e hōʻoia i ka ola maikaʻi a me ke ola.
Nā pāpale a me nāʻeha: Ua hanaʻiaʻo Hec ma kahiʻano rheology a me ka shucker a me nā shuckener i nā waihoʻoluʻu wai a me nā lole. Pono nā kumuwaiwai e koi i nā koina ph e like me nā mea hana hana'ē aʻe e like me ka viscosity, pae kiʻi, a me keʻano kiʻi kiʻi.
Nā mea hana kūkulu: i loko o nāʻano hana, hanaʻo ia, e hana anaʻo Hec e like me kahi o ka wai mālama a me ka hana i ka hana. Eia nō naʻe,ʻo nā kūlana alkaline i ka cement ke hoʻokaʻawale i ke kūpaʻa hec
Hydroxyethyl cellulose (hec) hāʻawi i nā waiwai waiwai a me nā mea hana hana ma nā noi likeʻole. ʻO ka hoʻomaopopoʻana he mea nui ka hoʻomaopopoʻana i kāna hana no nā mea hana e hoʻomohala ai i nāʻano kūpono a me nā hana kūpono. ʻOiai e hōʻike anaʻo Hec i nā kūlana maikaʻi ma lalo o nā kūlana kūponoʻole, pono e hanaʻia nā manaʻo no Acidic a me Alkalline i ka hana maikaʻi a me ka hana maikaʻi loa. Ma ke kohoʻana i ka papa o ka papaʻo Hec, e kūpono ana i nā'āpana helu helu, a e hoʻopau ai i nā kūlana paʻa, hiki i nā hana paʻa o ka hec ma kahi o PHEA.
POST manawa: Mar-29-2024