I kēia manawa, ʻokoʻa ka maikaʻi o ka hydroxypropyl methylcellulose home, a ʻokoʻa ke kumu kūʻai, e paʻakikī i nā mea kūʻai aku ke koho pono.ʻO ka HPMC i hoʻololi ʻia o ka hui haole hoʻokahi ka hopena o nā makahiki he nui o ka noiʻi.Hiki i ka hoʻohui ʻana i nā mea trace ke hoʻomaikaʻi i ka hana hana a hoʻomaikaʻi i ka hana.ʻOiaʻiʻo, e pili ana ia i kekahi mau waiwai ʻē aʻe, akā ma ka ʻōlelo maʻamau he mea kūpono ia;ʻO ke kumu wale nō o ka hoʻohui ʻana i nā mea ʻē aʻe, ʻo ia ka hoʻemi ʻana i nā kumukūʻai, e hoʻemi nui ʻia ka paʻa ʻana o ka wai, cohesiveness a me nā waiwai ʻē aʻe o ka huahana, ka hopena i nā pilikia o ke kūkulu hale.
Aia nā ʻokoʻa ma waena o ka HPMC maʻemaʻe a me ka HPMC male:
1. ʻO ka HPMC maʻemaʻe ke nānā aku a he haʻahaʻa haʻahaʻa haʻahaʻa, mai ka 0.3-0.4g/ml;ʻOi aku ka maikaʻi o ka wai o ka HPMC adulterated a ʻoi aku ke kaumaha, ʻo ia ka mea ʻokoʻa mai ka huahana maoli i ka helehelena.
2. Maʻemaʻe HPMC aqueous solution mea akaka, kiʻekiʻe māmā transmittance, a me ka wai paʻa ana ≥ 97%;ʻO ka hoʻoheheʻe wai o HPMC he ao, a paʻakikī ka paʻa ʻana o ka wai i ka 80%.
3. ʻAʻole pono ka HPMC maʻemaʻe e honi i ka amonia, ka mākiko a me ka waiʻona;Hiki ke honi pinepine ka HPMC i nā ʻano ʻala a pau, ʻoiai ʻaʻole ʻono, kaumaha nō ia.
4. He fibrous ka pauka HPMC maʻemaʻe ma lalo o kahi microscope a i ʻole aniani hoʻonui;Hiki ke ʻike ʻia ka HPMC i hoʻohālikelike ʻia ma ke ʻano he mau mea paʻa a i ʻole kristal ma lalo o kahi microscope a i ʻole aniani hoʻonui.
He kiʻekiʻe hiki ʻole ke hoʻonui ʻia o 200,000?
Ua paʻi ka nui o ka poʻe loea a me nā loea i nā pepa e manaʻoʻiʻo nei ua kaupalena ʻia ka hana HPMC e ka palekana a me ka hoʻopaʻa ʻana i nā lako hale, ka hana slurry a me ka hana haʻahaʻa haʻahaʻa, a ʻaʻole hiki i nā ʻoihana maʻamau ke hana i nā huahana me ka viscosity ʻoi aku ma mua o 200,000.I ke kauwela, ʻaʻole hiki ke hana i nā huahana me ka viscosity ʻoi aku ma mua o 80,000.Manaʻo lākou he huahana hoʻopunipuni nā mea i kapa ʻia he 200,000 huahana.
ʻAʻole kūpono ʻole nā manaʻo o ka loea.E like me ke kūlana hana home mua, hiki ke huki ʻia nā hopena i luna.
ʻO ke kī i ka hoʻonui ʻana i ka viscosity o HPMC ʻo ia ka sila kiʻekiʻe o ka reactor a me ka hopena kiʻekiʻe a me nā mea waiwai kiʻekiʻe.ʻO ke kiʻekiʻe o ka ea e pale i ka hoʻohaʻahaʻa ʻana o ka cellulose e ka oxygen, a ʻo ke ʻano hoʻohālikelike kiʻekiʻe e hāpai i ke komo ʻana o ka mea etherification i loko o ka cellulose a hōʻoia i ka kūlike o ka huahana.
ʻO ka papa kuhikuhi kumu o 200000cps hydroxypropyl methylcellulose:
2% viscosity hoʻonā wai 200000cps
Maʻemaʻe huahana ≥98%
ʻO ka maʻiʻo methoxy 19-24%
Maʻiʻo Hydroxypropoxy: 4-12%
200000cps hydroxypropyl methylcellulose hiʻona:
1. Paʻa wai maikaʻi a me nā waiwai mānoanoa e hōʻoia i ka hydration piha o ka slurry.
2. ʻO ka ikaika hoʻopaʻa kiʻekiʻe a me ka hopena ea-entraining koʻikoʻi, e pale pono i ka shrinkage a me ka haki ʻana.
3. Hoʻopaneʻe i ka hoʻokuʻu ʻana i ka wela o ka hydration sima, hoʻopaneʻe i ka manawa hoʻonohonoho, a hoʻopaʻa i ka manawa hana o ka mīkini sima.
4. E hoʻomaikaʻi i ka paʻa ʻana o ka wai o ka mortar pumped, hoʻomaikaʻi i ka rheology, a pale i ka hoʻokaʻawale ʻana a me ke koko.
5. Nā huahana kūikawā, e kuhikuhi ana i ke kaiapuni kūkulu hale kiʻekiʻe i ke kauwela, e hōʻoia i ka hydration pono o ka slurry me ka ʻole o ka delamination.
Ma muli o ka mākaʻikaʻi ʻana o ka mākeke, ʻoi aku ka ikaika o ka hoʻokūkū ma ka ʻoihana mortar.No ka hoʻokō ʻana i ka mākeke, ua hui pū kekahi mau mea kālepa i ka nui o nā mea haʻahaʻa haʻahaʻa e hana ai i ka cellulose ether.Maʻaneʻi, pono ka mea hoʻoponopono e hoʻomanaʻo i nā mea kūʻai mai e hahai makapō i nā kumukūʻai haʻahaʻa, iʻole e hoʻopunipuniʻia E hoʻopunipuniʻia, e alakaʻi i nā ulia pōpilikia, aʻoi aku ka nui o nā poho ma mua o ka loaʻa.
Nā ʻano hana moe kolohe maʻamau a me nā ʻano ʻike:
(1) Hiki i ka hoʻohui ʻana o ka amide i ka cellulose ether ke hoʻonui wikiwiki i ka viscosity o ka solution cellulose ether, ʻaʻole hiki ke ʻike ʻia me kahi viscometer.
Ke ala ʻike: Ma muli o nā ʻano o nā amides, ʻo kēia ʻano cellulose ether solution he stringing phenomenon, akā ʻaʻole e ʻike ʻia ka cellulose ether maikaʻi ma hope o ka hemo ʻana, ua like ka hopena me ka jelly, i kapa ʻia ʻo sticky akā ʻaʻole pili.
(2) Hoʻohui i ka starch i ka cellulose ether.ʻAʻole hiki ke hoʻoheheʻe ʻia ka starch i loko o ka wai, a ʻo ka hoʻonā ʻana he haʻahaʻa haʻahaʻa.
Ke ala ʻike: E hoʻoheheʻe i ka cellulose ether solution me ka iodine, inā he uliuli ke kala, hiki ke manaʻo ʻia ua hoʻohui ʻia ka starch.
(3) Hoʻohui i ka pauka polyvinyl alcohol.E like me kā mākou e ʻike ai, ʻoi aku ka haʻahaʻa o ke kumukūʻai o ka polyvinyl alcohol pauka e like me 2488 a me 1788 ma mua o ka cellulose ether, a ʻo ka hui ʻana i ka pauka polyvinyl alcohol hiki ke hōʻemi i ke kumukūʻai o ka cellulose ether.
ʻO ke ala ʻike: ʻO kēia ʻano cellulose ether he granular a paʻakikī.E hoʻoheheʻe koke ʻia me ka wai, e koho i ka hoʻonā me ke koʻokoʻo aniani, e ʻike ʻia kahi ʻano stringing hou aʻe.
Hōʻuluʻulu manaʻo: Ma muli o kona ʻano kūikawā a me nā hui, ʻaʻole hiki ke hoʻololi ʻia ka paʻa wai o ka cellulose ether e nā mea ʻē aʻe.ʻAʻole pili i ke ʻano o ka mea hoʻopihapiha i hui ʻia, ʻoiai e hui pū ʻia me ka nui, e hoʻemi nui ʻia kona paʻa wai.ʻO ka nui o ka HPMC me ka viscosity maʻamau o 10W i ka mortar maʻamau ʻo 0.15 ~ 0.2‰, a ʻo ka nui o ka mālama ʻana i ka wai he> 88%.ʻOi aku ke koʻikoʻi o ke koko.No laila, ʻo ka nui o ka paʻa ʻana o ka wai he hōʻailona koʻikoʻi ia e ana i ka maikaʻi o ka HPMC, inā he maikaʻi a maikaʻi ʻole paha, ʻoiai e hoʻohui ʻia i ka pahū, e akaka ma ka nānā.
Ka manawa hoʻouna: Mei-10-2023