Ka hanaʻana i ka cellulousthyl cellulouse Ua hoʻohana nuiʻiaʻo Hec i nāʻoihana likeʻole, me nā lāʻau lapaʻau, nā lāʻau lapaʻau, meaʻai, no ka hanaʻana, a me kāna mau wahi nui.
Hōʻike i ka hydroxyethyl cellulouse (hec)
ʻO Hydroxyethyl cellulouse (hec) he meaʻole-initic, initic-iniha-sollable polymer i laweʻia mai cellulose ma o ka hoʻololiʻana o ka cellupuse. Ua hoʻohana nuiʻiaʻo ia ma keʻano he shuckeyning, ke kula, a me ke alakaʻiʻana i nāʻoihana ma nāʻoihana likeʻole.
Nā mea waiwai
Cellulouse:ʻO ka mea hana nui no ka hana hec. Hiki i nā cellouse ke lilo i nā mea kanu lāʻau likeʻole e like me nā mea kanu lāʻau e like me ka lāʻau lāʻau, coldon, a iʻole nā mea mahiʻai.
Ettelene o Etelene (eo): kahi mea kūʻai ke kemika i hoʻohanaʻia e hoʻolauna i nā hui hydroxythyl i ke kua.
Alkali:ʻO ka maʻamau sodium hydroxide (Naoh) a iʻole ka potassium hydroxide (koh) i hoʻohanaʻia e like me ka catalyst i ka hopena.
Hana hana hana
ʻO ka hanaʻana o Hec e pili ana i ka eterification of cellouse me cellouse o celide ma lalo o nā kūlana alkaline.
ʻO nā hana e pili ana i ke kaʻina hana:
1.ʻO ka mālama muaʻana o ka cellulose
Ua hoʻomaʻemaʻe muaʻiaʻo Cellulouse e wehe i nā incurities e like me ka lignin, hemicellse, a me nā mea'ē aʻe. ʻO ka cellur cellouse a laila maloʻo i kaʻike kiko'ī kiko'ī.
2.ʻO ka hoʻohālikelikeʻana
ʻO ka hoʻomākaukauʻana i nā hopena alkaline: kahi hopena kūpono loa o ka sodium hydroxide (Naoh) a iʻole ka patrosium hydroxide (koh). ʻO keʻano o ka hoʻonāʻana o ka Rult Sulfic he koʻikoʻi a pono e kohoʻia e pili ana i keʻano o ka manaʻo i makemakeʻia ma keʻano he huahana hope loa.
ʻO ka hoʻonohonohoʻana i keʻano: Ua hoʻolahaʻiaʻo Wire Cellulose i ka hopena Alkali. Hoʻomoeʻia ka huiʻana i kahi mahana kūikawā, maʻamau ma kahi o 50-70 ° C, e hōʻoiaʻiʻo i ka cellulose a hiki i keʻano.
Ka hoʻohuiʻana i ka olleyne oxide (eo): Etylene oxde ʻO ka hopena,ʻo ia ka hopena, he mea nui ke kāohiʻana i keʻano e pale ai i ka paleʻana.
Ke nānāʻana i keʻano Hiki ke hoʻohanaʻia nāʻenehana e like me ka hoʻololiʻana o ka file
ʻO ka neuteralization a me ka holoiʻana:ʻO ka manawa e loaʻa ai nā ds makemake i makemakeʻia, ua pau ka hopena e pili ana i keʻano o ka maʻi alkaline. Ua holoiʻia ka hopena o ka hopena i ka wai e wehe i nā mea i makemakeʻoleʻia a me nā haumia.
3. Hoʻomaʻemaʻe a me ka hoʻomaʻemaʻe
Ua hoʻomaʻemaʻe houʻia ka mea holoi holoiʻia ma o ka filtration a iʻole ka centrifugation e wehe i nā mea i koe. A laila maloʻo ka mea hoʻomaʻemaʻe i kahi mea i loaʻa i kahiʻikepili kiko'ī e loaʻa ai ka huahana hope loa.
Honua mālamalama
Pono ka mana o ka mana kūpono i ke kaʻina hana hec e hōʻoia ai i ka noʻonoʻo a me ka maʻemaʻe o ka huahana hope loa. ʻO nā kiʻina nui e komo ai i ka nānā:
Top of sciodyment (ds)
Viscosity
ʻIkeʻia kaʻike
pH
Maʻemaʻe
Nāʻenehana loea e like me ka ctir, nā ana o ka viscosity, a me ka hoʻohanaʻana i ka loiloi maʻamau no ka mana kūpono.
Nā noi o ka hydryethyl cellulouse (hec)
ʻIkeʻo Hec i nā noi ma nāʻano hana likeʻole ma muli o kāna mau waiwai Vericalile:
Nā Pharmaceutitirical: Hoʻohanaʻiaʻo ia i kahi o nā mea i hoʻopaʻaʻia i loko o nā subpensions waha, a me nā'ōnaehana laweʻana i nā lāʻau lapaʻau.
ʻO nā hoahānau: maʻamau i hoʻohana pinepineʻia i loko o nā momona, nā'āpana, a me nā shampoos a me ka shaickener a stabilizer.
Meaʻai: hoʻohuiʻia nā huahana meaʻai e like me ka pua pua, emulifies, a me ka stabilifier.
E kūkulu: hoʻohanaʻia i loko o nā mokuahi e pili ana i nā mokuahi e pili ana i nā papa hana e pili ana i ka hoʻomaikaʻiʻana i nā hana hana a me ka nui o ka wai.
Nā noʻonoʻo a me nā noʻonoʻo noʻonoʻo
ʻO ka hopena o ka kaiāulu:ʻO ka hanaʻana o Hec e pili ana i ka hoʻohanaʻana i nā mea kaulike e like me Etelene o Etelen ʻO ka hoʻokele waiwai kūpono a me ka adherence e hoʻoponopono i nā lula e pono ai e hōʻemi i ka hopena o nā kaiāulu.
ʻO ka palekana:ʻo Etylene oxene he mea nui loa a me ka haukapila o ka palekana, e hoʻopiʻi ana i nā pilikia palekana i ka wā e mālama ai a mālama. Pono kūpono i nā hana palekana pono, nā lako palekana pilikino (PPE), a pono nā protocols palekana e hōʻoia pono e hōʻoia i ka palekana palekana.
ʻO Hydroxyethyl Cellulouse (hec) he polymer waiwai nui me nā noi e pili ana i nāʻoihana i nāʻoihana e hana ana mai nā mea lapaʻau e kūkulu ai. ʻO kāna hana e pili ana i ka hoʻonuiʻana i ka eterification o nā cellouse me ka olleyne oxde ma lalo o nā kūlana alkaline. He mea koʻikoʻi nā mea hoʻokele waiwai e hōʻoia i ka hana a me ka maʻemaʻe o ka huahana hope loa. Pono e kamaʻilio pūʻia nā'ōlelo a me nā noʻonoʻo noʻonoʻo i ke kaʻina hana. E ka hahaiʻana i nā kaʻina kūpono a me nā protocols, hiki ke hanaʻia he kūpono kūpono i ka wā e hōʻemi ana i ka hopena o ke kaiāulu.
ʻO kēia alakaʻi alakaʻi i ke kaʻina hana o ke kaʻina hana o ka hydroxythyl cellulouse
POST manawa: APR-10-2024