He aha ka hydroxypropyl methyl cellulose HPMC?

HPMC hydroxypropyl methyl cellulosemea hana mea hana hale hana mea hoʻolako mea hoʻokuʻu aku
He aha ka hoʻohana nui ʻana o HPMC?
Hiki ke puʻunaue ʻia ka HPMC i: ke kūkulu ʻana, ka meaʻai a me ka lāʻau lapaʻau ma ka hoʻohana ʻana.
Hoʻohana nui ʻia ʻo HPMC i nā mea kūkulu hale, nā uhi, nā resins synthetic, nā keramika, nā lāʻau lapaʻau, ka meaʻai, ka lole, ka mahiʻai, nā mea hoʻonani, ka paka a me nā ʻoihana ʻē aʻe.
I kēia manawa, ʻo ka hapa nui o ka papa kūkulu hale, ma ke papa kūkulu, nui ka nui o ka pauka putty, ma kahi o 90% e hoʻohana ʻia e hana i ka pauka putty, ʻo ke koena e hoʻohana ʻia e hana i ka sima sima a me ke kāpili.

He aha nā mea nui o ka HPMC?
ʻO nā mea maka nui o ka HPMC: pulupulu i hoʻomaʻemaʻe ʻia, chloromethane, propylene oxide. ʻO nā mea maka ʻē aʻe, ʻo ia ka alkali papa, ka waikawa, toluene, isopropanol a pēlā aku.

- Ua māhele ʻia ʻo HPMC i kekahi mau ʻano, he aha nā ʻokoʻa o ka hoʻohana ʻana?
Hiki ke puʻunaue ʻia ka HPMC i ka ʻano koke a me ka ʻano hoʻoheheʻe wela.

ʻO nā huahana koke, i ka wai anuanu e hoʻopuehu koke ʻia, nalowale i loko o ka wai, i kēia manawa ʻaʻohe viscosity o ka wai, no ka mea, ua hoʻopuehu wale ʻia ʻo HPMC i loko o ka wai, ʻaʻohe hoʻoheheʻe maoli. Ma kahi o 2 mau minuke, e piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid viscous moakaka. Hiki ke hoʻohana ʻia ka laulā ākea, i ka pauka putty a me ka mortar, a me ke kāpili wai a me ka pena, ʻaʻohe kapu.

Hiki ke hoʻoheheʻe koke ʻia nā huahana wela i ka wai anuanu i ka wai wela, a laila nalowale i ka wai wela. Ke hāʻule ka mahana i kekahi mahana, e ʻike mālie ʻia ka mānoanoa a hiki i ka hoʻokumu ʻia ʻana o kahi colloid viscous moakaka. Hiki ke hoʻohana wale ʻia i ka pauka putty a me ka mortar, i loko o ka glue wai a me ka pena, e loaʻa kahi hanana hui, ʻaʻole hiki ke hoʻohana ʻia.

He aha nā ʻōkuhi loea nui oHPMC?
ʻO ka nui o ka hydroxypropyl a me ka viscosity, makemake ka hapa nui o nā mea hoʻohana e pili ana i kēia mau ʻōkuhi ʻelua.

Kiʻekiʻe ka ʻike o ka hydroxypropyl, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.

ʻOi aku ka maikaʻi o ka viscosity, ka paʻa ʻana o ka wai, pili (akā ʻaʻole paʻa loa), a ʻoi aku ka maikaʻi o ka viscosity, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i kekahi i ka sima sima.

ʻEhia ka nui o ka mānoanoa e kūpono no ka HPMC?
ʻO ke kuleana koʻikoʻi o HPMC ka paʻa ʻana o ka wai, a ukali ʻia e ka mānoanoa.
ʻO ka pauka Putty ma ke ʻano laulā he 100000 cps hiki ke. Inā maikaʻi ka paʻa ʻana o ka wai, a haʻahaʻa ka viscosity (70,000-80000), hiki nō hoʻi, ʻoiaʻiʻo, ʻoi aku ka nui o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, a i ka wā e ʻoi aku ai ka viscosity ma mua o 100,000, ʻaʻole nui ka hopena o ka viscosity i ka paʻa ʻana o ka wai.
ʻOi aku ke kiʻekiʻe o ke koi ma MORTAR, MAKE MAKE MA KA LĀʻAU HE 150 TAUWI e maikaʻi ai ka hoʻohana.
Hoʻopili ʻana i ke kāpili: pono nā huahana koke, ka mānoanoa kiʻekiʻe.