ʻO ka noi nui o ka hydroxypropyl methylcellulose

1. He aha ka noi nui o ka hydroxypropyl methylcellulose (HPMC)?

Hoʻohana nui ʻia ʻo HPMC i nā mea hana, nā uhi, nā resins synthetic, nā ceramics, nā lāʻau lapaʻau, nā meaʻai, nā textiles, nā mahiʻai, nā mea hoʻonaninani, ka paka a me nā ʻoihana ʻē aʻe.Hiki ke hoʻokaʻawale ʻia ka HPMC i ka papa hana, ka meaʻai a me ka lāʻau lapaʻau e like me ke kumu.I kēia manawa, ʻo ka hapa nui o nā huahana home ka pae kūkulu.I ka papa hana, hoʻohana ʻia ka pauka putty i ka nui, ma kahi o 90% ka hoʻohana ʻia no ka pauka putty, a hoʻohana ʻia ke koena no ka mortar sima a me ke kāpili.

2. He nui nā ʻano hydroxypropyl methylcellulose (HPMC), a he aha nā ʻokoʻa o kā lākou hoʻohana ʻana?

Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano koke a me ke ʻano wela wela.Hoʻopuehu koke ka ʻano huahana i ka wai anuanu a nalowale i loko o ka wai.I kēia manawa, ʻaʻohe viscosity o ka wai no ka mea ua hoʻopuehu wale ʻia ka HPMC i ka wai me ka ʻole o ka hemo maoli.Ma kahi o 2 mau minuke, piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid viscous transparent.ʻO nā huahana hoʻoheheʻe wela, ke hui ʻia me ka wai anuanu, hiki ke hoʻopuehu koke i ka wai wela a nalowale i ka wai wela.Ke hāʻule ka mahana i kekahi mahana, e ʻike mālie ʻia ka viscosity a hiki i ka hana ʻana i kahi colloid viscous transparent.Hiki ke hoʻohana wale ʻia ke ʻano hoʻoheheʻe wela i ka pauka putty a me ka mortar.I loko o ke kāpili wai a me ka pena, e hui pū ʻia nā mea ʻaʻole hiki ke hoʻohana.Loaʻa i ka ʻano koke ka laulā o nā noi.Hiki ke hoʻohana ʻia i loko o ka pauka putty a me ka mortar, a me ka wai wai a me ka pena, me ka ʻole o nā contraindications.

3. He aha nā ʻano hoʻoheheʻe o ka hydroxypropyl methylcellulose (HPMC)?

ʻO ke ʻano hoʻoheheʻe wai wela: No ka hemo ʻole ʻana o ka HPMC i ka wai wela, hiki ke hoʻopuehu like ʻia ka HPMC i ka wai wela i ka wā mua, a laila hemo koke i ka wā i maʻalili.ʻElua mau ʻano maʻamau i wehewehe ʻia penei:

1) E hoʻokomo i ka nui o ka wai wela i makemake ʻia i loko o ka pahu a wela iā ia ma kahi o 70 ° C.Hoʻohui mālie ʻia ka hydroxypropyl methylcellulose ma lalo o ka hoʻoulu ʻana lohi, i ka mua ua lana ka HPMC ma luna o ka ʻili o ka wai, a laila hana mālie i kahi slurry, i hoʻoluʻu ʻia ma lalo o ka hoʻoulu ʻana.

2), e hoʻohui i 1/3 a i ʻole 2/3 o ka nui o ka wai i makemake ʻia i loko o ka pahu, a wela iā 70 ° C, e hoʻopuehu i ka HPMC e like me ke ʻano o 1), a hoʻomākaukau i ka slurry wai wela;a laila e hoʻohui i ke koena o ka wai anuanu i ka slurry wai wela, ua maʻalili ka hui ʻana ma hope o ka hoʻoulu ʻana.

ʻO ke ʻano o ka hui ʻana o ka pauda: hoʻohui i ka pauka HPMC me ka nui o nā mea pauda ʻē aʻe, hui maikaʻi me ka mea hui, a laila hoʻohui i ka wai e hoʻoheheʻe ʻia, a laila hiki ke hoʻoheheʻe ʻia ka HPMC i kēia manawa me ka ʻole o ka hoʻohui ʻana, no ka mea he liʻiliʻi wale ka HPMC i kēlā me kēia liʻiliʻi. kihi Pauda, ​​e hoʻoheheʻe koke i ka wā e pili ana me ka wai.——Ke hoʻohana nei nā mea hana i ka pauda putty a me ka motar i kēia ʻano hana.[Hydroxypropyl methylcellulose (HPMC) hoʻohana ʻia ma ke ʻano he mānoanoa a me ka mea mālama paʻa wai i loko o ka mortar pauka putty.]

4. Pehea e hoʻoholo ai i ka maikaʻi o ka hydroxypropyl methylcellulose (HPMC) maʻalahi a intuitively?

(1) Keʻokeʻo: ʻOiai ʻaʻole hiki i ka keʻokeʻo ke hoʻoholo inā he maʻalahi ka HPMC e hoʻohana, a inā hoʻohui ʻia nā mea keʻokeʻo i ka wā o ke kaʻina hana, e pili ana ia i kona maikaʻi.Eia naʻe, ʻo ka hapa nui o nā huahana maikaʻi he keʻokeʻo maikaʻi.

(2) Maikaʻi: ʻO ka maikaʻi o HPMC maʻamau he 80 mesh a me 100 mesh, a he 120 mesh ka liʻiliʻi.ʻO ka hapa nui o HPMC i hana ʻia ma Hebei he 80 mesh.ʻO ka ʻoi aku ka maikaʻi, ʻo ka ʻōlelo maʻamau, ʻoi aku ka maikaʻi.

(3) Ka hoʻouna māmā: e hoʻokomo i ka hydroxypropyl methylcellulose (HPMC) i loko o ka wai e hana i kahi colloid akaka, a nānā i kāna transmittance māmā.ʻOi aku ka nui o ka transmittance māmā, ʻoi aku ka maikaʻi, e hōʻike ana he liʻiliʻi nā insolubles i loko..ʻOi aku ka maikaʻi o ka permeability o nā reactors vertical, a ʻoi aku ka maikaʻi o nā reactors horizontal, akā ʻaʻole ia he ʻoi aku ka maikaʻi o nā reactors vertical ma mua o nā reactors horizontal, a ua hoʻoholo ʻia ka maikaʻi o ka huahana e nā kumu he nui.

(4) Kaumaha kikoʻī: ʻO ka nui o ka umekaumaha kikoʻī, ʻoi aku ka ʻoi aku ka maikaʻi.Nui ka kikoʻī, maʻamau no ka mea kiʻekiʻe ka ʻike o ka hui hydroxypropyl i loko, a ʻoi aku ka kiʻekiʻe o ka ʻike o ka hui hydroxypropyl, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.