Hydroxypropyl Methyl Cellulose HPMC

ʻO ka Hydroxypropyl methylcellulose (HPMC), kahi ether cellulose non-ionic, i loaʻa mai ka cellulose kūlohelohe ma o nā kaʻina hana kemika. Hōʻike ʻia kēia pauka keʻokeʻo e kona ʻano ʻala ʻole a ʻono ʻole, ʻaʻole ia he mea ʻawaʻawa a palekana no nā noi like ʻole. ʻO kekahi o kāna mau hiʻohiʻona koʻikoʻi kona hiki ke hoʻoheheʻe i loko o ka wai anuanu, ka hopena i kahi hopena viscous akaka. Loaʻa i ka HPMC kahi ākea o nā waiwai hana, e like me ka mānoanoa, adhesion, dispersion, emulsification, a me nā mana hana kiʻiʻoniʻoni. Hoʻohui ʻia, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai, ka gelation, a me ka hana o ka ʻili, e hoʻolilo iā ia i mea hoʻohui ma waena o nā ʻoihana he nui, e like me nā lāʻau lapaʻau, hana meaʻai, kūkulu, a me nā mea hoʻonaninani.

Ma ka ʻoihana kūkulu, ʻike ʻo HPMC i nā noi he nui no ka hoʻonui ʻana i ka maikaʻi a me ka pono o nā mea kūkulu hale. No ka laʻana, ke hoʻohui ʻia i loko o ka slurry sima-sand, hoʻomaikaʻi nui ʻo HPMC i ka hoʻopuehu ʻana o ka mea, e hoʻonui ai i ka plasticity a hoʻomaikaʻi i ka paʻa ʻana o ka wai ma ka noi mortar. He mea koʻikoʻi kēia hiʻohiʻona, no ka mea e kōkua i ka pale ʻana i ka haki ʻana o nā hale, a laila e hoʻolōʻihi i ke ola a me ke kūpaʻa o ke kūkulu ʻana. Pēlā nō, i loko o ka pōʻaiapili o ka mortar ceramic tile, hoʻomaikaʻi ʻo HPMC ʻaʻole wale i ka paʻa ʻana o ka wai akā ʻo ka adhesion a me ka plasticity, he mea nui ia no ka noi kūpono a me ka lōʻihi me ka ʻole o ka pauka.

Eia kekahi, mālama ʻo HPMC i nā lula palekana, ʻike ʻia ʻo ia he meaʻai meaʻai ʻona ʻole palekana no ka ʻai ʻana, ʻaʻohe waiwai caloric a ʻaʻole hoʻonāukiuki i ka ʻili a me nā membrane mucous. Wahi a ka FDA a me FAO/WHO alakaʻi, ʻo ka HPMC i ʻae ʻia i kēlā me kēia lā i hoʻonohonoho ʻia ma 25mg/kg, e hāʻawi ana i ka hōʻoia no kona hoʻohana ʻana i nā noi like ʻole. Eia nō naʻe, pono ka mālama ʻana i ka HPMC e hōʻoia i ka palekana i ka wā o kāna noi. Manaʻo ʻia e ʻaʻahu i nā mea pale, e pale i ka ʻike ʻana i nā kumu ahi, a e hōʻemi i ka hana ʻana o ka lepo ma nā wahi pani e hoʻēmi i nā pilikia pahū. Eia kekahi, pono e mālama ʻia ʻo HPMC ma kahi maloʻo a maikaʻi-ventilated, pale ʻia mai ka lā pololei a me ka makū, me ka nānā ʻana i ka wā o ka lawe ʻana e pale iā ia mai ka ua a me nā mea ʻē aʻe. Hoʻopili paʻa ʻia ʻo HPMC i loko o nā ʻeke 25 kg i hana ʻia me ka polypropylene, i hoʻopaʻa ʻia me ka polyethylene no ka pale hou aku, me ka hōʻoia ʻana e hoʻopaʻa ʻia ka huahana a paʻa a hiki i ka hoʻohana ʻana.