Hydroxypropyl methylcelluloseme ka viscosity o 100,000 ua lawa maʻamau i ka pauka putty, ʻoiai ʻoi aku ka kiʻekiʻe o ka mortar no ka viscosity, no laila e koho ʻia kahi viscosity o 150,000 no ka hoʻohana maikaʻi ʻana. ʻO ka hana nui loa ohydroxypropyl methylcelluloseʻo ka mālama ʻana i ka wai, a ma hope o ka mānoanoa. No laila, i loko o ka pauka putty, ʻoiai ka lōʻihi o ka mālama ʻana i ka wai, ʻae ʻia ka viscosity haʻahaʻa. ʻO ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, akā inā ʻoi aku ka viscosity ma mua o 100,000, ʻaʻole nui ka hopena o ka viscosity i ka mālama ʻana i ka wai.
Hydroxypropyl methylcelluloseUa mahele ʻia i loko o nā ʻāpana e like me ka viscosity:
1. Haʻahaʻa viscosity: 400 viscosity cellulose, i hoʻohana nui ʻia no ka mortar hoʻonaʻauao ponoʻī.
ʻO ka viscosity haʻahaʻa, ka wai maikaʻi, ma hope o ka hoʻohui ʻana e hoʻomalu i ka paʻa ʻana o ka wai o ka ʻili, ʻaʻole ʻike ʻia ka seepage wai, liʻiliʻi ka liʻiliʻi, hoʻemi ʻia ka pohā, a hiki ke pale aku i ka sedimentation, hoʻonui i ka wai a me ka pumpability.
2. Medium-haʻahaʻa viscosity: 20,000-50,000 viscosity cellulose, hoʻohana nui ʻia no nā huahana gypsum a me nā mea caulking.
ʻO ka viscosity haʻahaʻa, ka paʻa ʻana o ka wai, ka hana hana maikaʻi, ka hoʻohui wai liʻiliʻi.
3. Medium viscosity: 75,000-100,000 viscosity cellulose, hoʻohana nui ʻia no ka putty pā o loko a me waho.
ʻO ka viscosity haʻahaʻa, paʻa wai maikaʻi, kūkulu maikaʻi a me nā waiwai e kau ana
4. High viscosity: 150,000-200,000, hoʻohana nui ʻia no ka polystyrene particle insulation mortar glue powder and vitrified micro-bead insulation mortar. ʻO ka viscosity kiʻekiʻe, ka paʻa wai kiʻekiʻe, ʻaʻole maʻalahi ka mortar e hāʻule, kahe, hoʻomaikaʻi i ke kūkulu ʻana.
ʻO ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai. No laila, nui nā mea kūʻai aku e koho e hoʻohana i ka medium-viscosity cellulose (75,000-100,000) ma kahi o ka medium-low viscosity cellulose (20,000-50,000) e hōʻemi i ka nui i hoʻohui ʻia a pēlā e kāohi ai i nā kumukūʻai.
Hydroxypropyl methylcellulose (HPMC)he polymer semisynthetic i hoʻohana mau ʻia i nā ʻoihana like ʻole, e like me ke kūkulu ʻana, nā lāʻau lapaʻau, a me ka hana meaʻai. He waiwai koʻikoʻi ka viscosity o HPMC e hoʻoholo ana i kāna hana ma nā noi like ʻole.
Hoʻopili ʻia ka viscosity o HPMC e nā mea e like me ke degere o ka hoʻololi ʻana (DS), ke kaumaha molekala, a me ka neʻe ʻana o ka hopena HPMC. ʻO ka mea maʻamau, e like me ka piʻi ʻana o ke kiʻekiʻe o ka hoʻololi ʻana a me ke kaumaha molekala o HPMC, pēlā nō kona viscosity.
Loaʻa ka HPMC ma kahi ʻano o nā māka viscosity, maʻamau i ana ʻia ma ke ʻano o kona "kaumaha molekula" a i ʻole "maʻiʻo methoxyl." Hiki ke hoʻololi ʻia ka viscosity o HPMC ma ke koho ʻana i ka papa kūpono a i ʻole ma ka hoʻoponopono ʻana i ka ʻike o ka hopena HPMC.
Ma nā noi hana, hoʻohana pinepine ʻia ka HPMC me ka viscosity kiʻekiʻe e hoʻomaikaʻi i ka hana a me ka paʻa ʻana o ka wai o nā mea sima. I loko o nā lāʻau lapaʻau, he mea nui ka viscosity i ka hoʻomalu ʻana i ka hoʻokuʻu ʻana o nā mea hana i loko o nā ʻano lāʻau lapaʻau.
No laila, ʻo ka hoʻomaopopo ʻana i ka viscosity o ka hydroxypropyl methylcellulose he mea koʻikoʻi no ke koho ʻana i ka papa kūpono no nā noi kikoʻī a me ka hōʻoia ʻana i nā ʻano hana i makemake ʻia.
Ka manawa hoʻouna: Mei-30-2024