Hydroxypropyl methyl cellulose a me ka lākiō sima

He aha ka HPMC Hydroxypropyl methyl cellulose a me ka lākiō sima?

ʻO ka mīkini hoʻoheheʻe ʻenehana wai, ʻo kona mau hiʻohiʻona e hilinaʻi ʻia i ka paona ʻupena o nā mea maka i hana ʻia: Concrete 30-340, ʻenekinia hana ʻana i ka pauka brick 40-50, lignin fiber 20-24, calcium formate 4-6, hydroxypropyl methyl cellulose 7-9, silicon carbide pauda 40-45, 10-10-20 pauka kalapona, calcium hydroxide20, 10-10-20 pauka. maloʻo nui kūlanakauhale lepo lepo lepo 30-35, Datong kūlanakauhale lepo 40-45, alumini sulfate 4-6, carboxymethyl Base starch 20-24, mea hoʻololi nanotechnology kalapona pauda 4-6, wai 600-650; ʻO ka mīkini hoʻoheheʻe wai ʻenehana o kēia huahana he ikaika ka wela wela, maikaʻi ke ahi kūʻē, ikaika ka hoʻopaʻa ʻana me ka pā, ka ikaika compressive, ka hana tensile, ke kūpaʻa ʻelemakule maikaʻi, ka mālama ʻana i ke kaiapuni maikaʻi, ka moistureproof maikaʻi, ka pale ʻana i ka hāʻule ʻana i lalo. I kēia lā e kamaʻilio mākou e pili ana i ka viscosity o ka hydroxypropyl methyl cellulose aqueous solution i nā mea āpau? E aʻo maoli kākou.

1. ʻO ke kaumaha molekala pili, ka mahana o ka hoʻonā wai, ka ʻoki ʻoki a me ke ʻano hoʻokolohua o cellulose ether; 2. ʻO ke kiʻekiʻe o ka mahana hoʻololi aniani, ʻoi aku ka nui o ke kaumaha molekala pili, ʻoi aku ka kiʻekiʻe o ka viscosity o ka hopena; 3. ʻO ka mea kiʻekiʻe o ka cellulose ether, ʻoi aku ka kiʻekiʻe o ka viscosity o ka hopena, no laila i ka hoʻokō ʻana i ka noi e pono mākou e hoʻolohe i ka nui kūpono o ka hoʻohui ʻana, pale i ka hoʻohui ʻana he kiʻekiʻe loa, a pili pono i nā ʻano o ka mortar sima a me ka sima; 4. E like me ka hapa nui o ka hoʻonā, e emi iho ka viscosity me ka piʻi ʻana o ka mahana, a me ke kiʻekiʻe o ka ʻike o ka cellulose ether, ʻoi aku ka nui o ka pōʻino o ka wela; Eia kekahi, ʻokoʻa ka hopena mānoanoa maoli e like me ka nui o ka wai i hoʻohana ʻia no ka epoxy cement.

Hiki ke hoʻohana ʻia ka hydroxypropyl methyl cellulose aqueous solution viscosity ma ke ʻano he loulou kī no nā manaʻo e pili ana i nā ʻano o ka cellulose ether, ʻoi aku ka kiʻekiʻe o ka viscosity o ka wai wai, ʻoi aku ka maikaʻi o ke kua o ka pā gelling waiwai, akā inā nui ka viscosity, e hōʻeha koke i ka epoxy cement raw materialability. E like me kekahi mortar hoʻokiʻekiʻe ponoʻī me ka wai kiʻekiʻe, e kuhikuhi ʻia ka viscosity o cellulose ether e haʻahaʻa.

He kino pseudoplastic ka cellulose ether aqueous solution, ʻoi aku ka nui o ka viscosity ma hope o ka ʻike ʻana o ka shear rate.

No laila, e hōʻuluʻulu ʻia: e hoʻemi ʻia ka cohesion o ka mortar sima e ka ikaika o waho, he mea pono ia i ka hana ʻenekinia ma hope, akā ʻo ka cellulose ether aqueous solution i ka hihia o kahi haʻahaʻa haʻahaʻa haʻahaʻa, e kū mai nā ʻano o ka wai non-Newtonian, ma ka ʻaoʻao, ke hoʻonui ʻia ke kumukūʻai, e kū mai ka hopena wai i nā ʻano wai pseudoplastic.

ʻO ka mālama ʻana i ka wai mai ka hydroxypropyl methyl cellulose kekahi o nā waiwai nui o ka hydroxypropyl methyl cellulose. Hoʻopili ʻia ka nui o ka evaporation o ka wai i loko o ka mortar hui ʻia a me nā huahana plaster based e ka wela kinoea, ka mahana a me ka helu kaomi. No laila, i nā kau like ʻole, me ka hydroxypropyl methyl cellulose ka nui like o ka pono wai o ka huahana he mau ʻokoʻa.

Ma keʻano laulā, ʻoi aku ka kiʻekiʻe o ka viscosity o ka hydroxypropyl methyl cellulose, ʻoi aku ka maikaʻi o ka hopena maoli o ka paʻa ʻana o ka wai, akā e hoʻemi ʻia ka pōʻino o ka viscosity i ka mālama ʻana i ka wai ma hope o ka viscosity ma mua o 100,000 Mpa. s. Ke ʻoi aku ka viscosity o HYDROXYpropyl methyl cellulose ma mua o 100,000, hiki ke hoʻomaikaʻi maikaʻi ʻia ka nui o ka mālama ʻana i ka wai ma o ka hoʻonui ʻana i ka nui o ka hydroxypropyl methyl cellulose.

Ma ke kaʻina hana kikoʻī, hiki ke hoʻoponopono ʻia ka hopena paʻa wai o ka slurry ma ka hoʻoponopono ʻana i ka nui o ka hydroxypropyl methyl cellulose. Hiki i nā huahana Hydroxypropyl methyl cellulose series ke hoʻoponopono pono i ka pilikia o ka paʻa ʻana o ka wai ma lalo o ka wela kiʻekiʻe. I ke kau wela kiʻekiʻe, ʻoi aku ka maikaʻi ma nā wahi wela a me ka hana ʻana i ka chromatography ma ka ʻaoʻao o ka lā, koi ʻia ka HYDROXYpropyl methyl cellulose kiʻekiʻe e hoʻomohala i ka paʻa wai o ka slurry.

ʻO ke kūlana kiʻekiʻe o ka hydroxypropyl methyl cellulose, loaʻa iā ia kahi kaulike maikaʻi, kāna mau pūʻulu hana butyl a me hydroxypropyl oxygen ma ka hui pū ʻana o ke kaulahao fiber molecular chain, hiki iā ia ke hoʻomohala i ka hui methyl aldehyde a me ka oxygen, a me ka maikaʻi o ka wai o ke ʻano kikohoʻe covalent paʻa hiki ke lilo i wai paʻa a me ka wai o ka hoʻopuehu ʻana, a laila e hoʻomalu pono i ke anuanu kiʻekiʻe o ka wai.

High quality o ka hydroxypropyl methyl cellulose hiki ke hoʻokuʻu a me ka 'āina kalepa i hui 'ia i ka mortar a me ka plaster huahana, a me na mea paʻa paʻa cysts, damp, cool, a hana i ka papa o ka kiʻiʻoniʻoni, makū i ka manawa lōʻihi-lohi lohi hoʻokuʻu mai ke kumu, me ka hoʻomakaʻana o ka mea hoʻohui hui hui o ka hydration hopena, a laila e hōʻoiaʻiʻo i ka coherence o ka maka ikaika compressive ikaika a me ka tensile ikaika. I ke kaʻina hana kūkulu wela wela, no laila, e hiki ai i ka hopena wai, pono e like me ka papa kuhikuhi no ka nui a me ka maikaʻi o nā huahana hydroxypropyl methyl cellulose, inā ʻaʻole, e hōʻike i ka luhi wikiwiki a me ka lawa ʻole o ka hydration, hoʻemi i ka ikaika compressive, ʻokiʻoki, popped i nā ʻano e like me ka metope pahu pahu a me ke kānalua, hui pū ʻia me ka coefficient kūkulu paʻakikī. Ke hāʻule nei ka mahana, hiki ke hoʻemi mālie ʻia ka nui o ka hydroxypropyl methyl cellulose a hiki ke hoʻokō ʻia ka hopena paʻa wai like.

Inā ʻaʻole i hoʻohui ʻia ka cellulose etera, e maloʻo koke ka chromatography o ka mortar sima hou, ʻaʻole hiki ke hoʻomaʻemaʻe ʻia ke kaʻa ma ke ʻano maʻamau, ʻo ka hopena i ka paʻakai sima ʻaʻole hiki ke paʻakikī a loaʻa ka adhesion maikaʻi. I ka manawa like, ʻo ka hoʻohui ʻana o ka cellulose ether e hana i ka mortar sima i ka ductility a me ka maʻalahi, a hoʻomaikaʻi i ka hoʻopaʻa ʻana i ka ikaika compressive o ka mortar sima.

1, hydroxypropyl methyl cellulose ka nui

ʻO ka nui o ka nui o ka cellulose ether e hōʻino i kona hiki ke hoʻoheheʻe. ʻOi aku ka maikaʻi o ka cellulose ether, ʻoi aku ka wikiwiki o kona decomposition rate i loko o ka wai a ʻoi aku ka kiʻekiʻe o kāna mau ʻano paʻa wai. No laila, pono e hoʻokomo i ka nui o ka cellulose ether i ka hoʻokolokolo ʻana i kekahi o kāna mau ʻano. Ma ka laulā, cellulose ether particle nui o 80 mesh ma muli o.

2, hydroxypropyl methyl cellulose maloʻo me ka ʻole o ka umekaumaha

ʻO ka manic maloʻo ʻaʻohe gravity rate, e pili ana i kahi mahana o ka manic cellulose ether maloʻo, ʻo ka nalowale o ka maikaʻi kemika i helu ʻia no ka hapa nui o ka maikaʻi o ka haku mele. No ka mea, he kiʻekiʻe loa ka maikaʻi o ka cellulose ether i loko o ka maloʻo me ka ʻole o ka gravity rate, e hōʻemi i nā mea pili i ka cellulose ether, e hōʻino i ka hopena maoli o ka hoʻohana ʻana i nā ʻoihana downstream, akā e hoʻomaikaʻi pū i ke kumukūʻai kūʻai. ʻO ka maʻamau, ʻaʻole ʻoi aku ka nui o ka cellulose ether me ka ʻole o ka gravity rate ma mua o 5.0%.

3, hydroxypropyl methyl cellulose potassium thiocyanate lehu

No ka mea, he kiʻekiʻe loa ka maikaʻi o ka cellulose ether i loko o ka lehu maʻiʻo, e hōʻemi i ka cellulose ether i nā ʻāpana kūpono, e hōʻino i ka hopena maoli o ka hoʻohana ʻana i nā ʻoihana downstream, cellulose ether potassium thiocyanate lehu maʻiʻo ka manaʻo nui o kāna mau hiʻohiʻona index waiwai.

4, hydroxypropyl methyl cellulose viscosity

ʻO ka hydroxypropyl methyl cellulose ka paʻa ʻana o ka wai a me ka hopena mānoanoa ke kī e hoʻohui ai i ka mortar sima cellulose ether i loko o kona viscosity a me ka hoʻohui ʻana.

5, hydroxypropyl methyl cellulose PH waiwai

Hoʻemi mālie ka viscosity o nā huahana hydroxypropyl methyl cellulose i ka mahana kiʻekiʻe a i ʻole ma hope o ka mālama ʻana no ka manawa lōʻihi, ʻoi aku hoʻi no nā huahana viscosity kiʻekiʻe, no laila pono e kaupalena ʻia ka waiwai pH. ʻO ka mea maʻamau i ʻōlelo ʻia e hoʻohana ʻia ka māhele waiwai PH o cellulose ether e like me 5-9.

6. Ka lawe ana o ka hydroxypropyl methyl cellulose

ʻO nā pono a me nā hemahema o ka transmittance o ka hydroxypropyl methyl cellulose hiki ke hoʻopili pololei i ka hopena maoli o kāna hoʻohana ʻana i nā mea kūkulu hale. ʻO nā kumu nui e hōʻino i ka transmittance o cellulose ether1) ka maikaʻi o nā mea maka; (2) ka hopena maoli o ka make; (3) Hoʻomākaukau ʻenehana hana; (4) hoʻomākaukau hoʻoheheʻe organik; (5) Ka hopena maoli o zhonghe.

E like me ka hopena noi maoli, ʻaʻole pono e emi ka transmittance o cellulose ether ma mua o 80%.

7, hydroxypropyl methyl cellulose i manaʻo ʻia ka mahana

Hydroxypropyl methyl cellulosei nā ʻāpana sima e like me ke kī e hoʻonui ai i nā adhesives, viscosity a me ka mea mālama paʻa wai, no laila, ʻo ka viscosity a me ka mahana gel ka waiwai kuhikuhi kī o hydroxypropyl methyl cellulose. Hoʻohana ʻia ka mahana e hoʻoponopono i ke ʻano a me ka kikoʻī o ka cellulose ether, a pili ka degere o ka hoʻololi ʻana o ka cellulose ether.

8. Eia kekahi, e hoʻopōʻino ka paʻakai a me ke koena i ka mahana o ke kāpili. Ke piʻi aʻe ka mahana o ka hoʻonā wai, nele ka wai i ka polymer fiber, a emi ka viscosity o ka wai. I ka hiki ʻana i ka helu adhesive, maloʻo loa ka polymer a hana ʻia ka mea hoʻopili. No laila, ʻoi aku ka maʻamau o ka mahana hana o nā lālā sima ma lalo o ka mahana o ke kāpili kumu. Ma lalo o kēia kūlana, ʻoi aku ka haʻahaʻa o ka mahana, ʻoi aku ka kiʻekiʻe o ka viscosity, a ʻoi aku ka nui o ka hopena maoli o ka viscosification a me ka paʻa ʻana o ka wai.