1. Hoʻokaʻawale ʻia ʻo HPMC i ke ʻano koke a me ke ʻano dispersion wikiwiki
Hoʻopili ʻia ke ʻano hoʻopuehu wikiwiki HPMC me ka leka S, a pono e hoʻohui ʻia ka glyoxal i ka wā o ke kaʻina hana.
ʻAʻole hoʻohui ka HPMC i nā leka, e like me "100000" ʻo ia hoʻi "100000 viscosity fast dispersion type HPMC".
2. Me ka S a me ka ole, he okoa na ano
Puka koke ʻo HPMC i ka wā e hālāwai ai me ka wai anuanu a nalowale i loko o ka wai.I kēia manawa, ʻaʻohe viscosity o ka wai, no ka mea, hoʻopuehu wale ʻia ka HPMC i ka wai me ka ʻole o ka hoʻoheheʻe maoli ʻana.Ma hope o ʻelua mau minuke, piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid mānoanoa mānoanoa.
Hiki ke hoʻopuehu koke ʻia ka HPMC i ka wai wela ma kahi o 70°C.Ke hāʻule ka mahana i kahi mahana, e ʻike mālie ʻia ka viscosity a hiki i ka hana ʻana o kahi colloid viscous transparent.
3. Me ka S a ʻole paha, ʻokoʻa ke kumu
Hiki ke hoʻohana wale ʻia ka HPMC i ka pauka putty a me ka mortar.I loko o ke kolu wai, pena a me nā huahana holoi, e hui pū ʻia a ʻaʻole hiki ke hoʻohana.
Loaʻa i ka HPMC i hoʻopuehu wikiwiki ʻia a hiki ke hoʻohana ʻia i ka pauka putty, mortar, ke kāpili wai, pena, a me nā huahana holoi me ka ʻole o nā contraindications.
ʻano hoʻoheheʻe
1. E lawe i ka nui o ka wai wela i makemake ʻia, e hoʻokomo i loko o kahi pahu a wela ma luna o 80 ° C, a hoʻohui mālie i kēia huahana ma lalo o ka hoʻoulu lohi.Ke lana nei ka cellulose ma ka ʻili wai i ka wā mua, akā ua hoʻopuehu mālie ʻia e hana i kahi slurry like.Hoʻoluʻu ʻia ka hopena i ka wā e hoʻoulu ai.
2. ʻO kahi ʻē aʻe, e wela i ka 1/3 a i ʻole 2/3 o ka wai wela ma luna o 85 ° C, e hoʻohui i ka cellulose e loaʻa ai kahi slurry wai wela, a laila e hoʻohui i ke koena o ka wai anuanu, e hoʻomau i ka hoʻoulu ʻana, a me ka hoʻoluʻu ʻana i ka hui ʻana.
3. He maikai loa ka mesh o ka cellulose, a aia no ia ma ke ano o na mea liilii i loko o ka pauka i hoouluulu ia, a hemo koke ia i ka wa e halawai ai me ka wai e hana i ka viscosity i makemakeia.
4. Hoʻohui mālie a me ke kaulike i ka cellulose ma ka lumi wela, e hoʻoulu mau ana a hiki i ka hoʻokumu ʻia ʻana o kahi hopena akaka.
He aha nā mea e pili ana i ka paʻa ʻana o ka wai o ka hydroxypropyl methylcellulose?
ʻO ka paʻa ʻana o ka wai o ka huahana hydroxypropyl methylcellulose HPMC ponoʻī e hoʻopilikia pinepine ʻia e nā kumu penei:
1. Kaulike o ka cellulose ether HPMC
Hāʻawi like ʻia ka HPMC, methoxyl a me ka hydroxypropoxyl, a ʻoi aku ka nui o ka paʻa wai.
2. Thermal gelation wela o cellulose ether HPMC
ʻOi aku ka kiʻekiʻe o ka wela gel wela, ʻoi aku ka kiʻekiʻe o ka paʻa wai;a i ʻole, ʻoi aku ka haʻahaʻa o ka paʻa wai.
3. Cellulose ether HPMC viscosity
Ke piʻi ka viscosity o HPMC, piʻi pū ka nui o ka mālama ʻana i ka wai;ke piʻi ka viscosity i kahi pae, ʻo ka piʻi ʻana o ka nui o ka mālama ʻana i ka wai e pālahalaha.
Ka nui o ka cellulose ether HPMC
ʻOi aku ka nui o ka cellulose ether HPMC i hoʻohui ʻia, ʻoi aku ka kiʻekiʻe o ka pae paʻa wai a ʻoi aku ka maikaʻi o ka hopena paʻa wai.
Ma ka laulā o ka 0.25-0.6% hoʻohui, piʻi wikiwiki ka nui o ka paʻa wai me ka hoʻonui ʻana i ka nui o ka hoʻohui;ke piʻi aʻe ka nui o ka hoʻohui, e lohi ka piʻi ʻana o ka nui o ka mālama ʻana i ka wai.
Ka manawa hoʻouna: Nov-17-2022