Focus on Cellulose ethers

He aha ka Hydroxypropyl methylcellulose?

He aha ka Hydroxypropyl methylcellulose?

1. Hoʻolauna

ʻO ka Hydroxypropyl methylcellulose (HPMC) he polymer hiki ke hoʻohana nui ʻia i ka wai i loaʻa mai ka cellulose. He pauka non-ionic, ʻala ʻole, ʻono ʻole, keʻokeʻo a keʻokeʻo keʻokeʻo i hoʻohana nui ʻia i ka ʻoihana meaʻai, lāʻau lapaʻau, a me nā ʻoihana hoʻonaninani. Loaʻa i ka HPMC ka laulā o nā noi, me ka mānoanoa, emulsifying, suspending, stabilizing, a me ka hana kiʻiʻoniʻoni. Hoʻohana ʻia ia ma ke ʻano he binder, lubricant, a disintegrant i ka hana ʻana i nā papa a me nā capsules.

 

2. Mea Maka

ʻO ka mea maka nui i hoʻohana ʻia no ka hana ʻana i ka HPMC he cellulose, he polysaccharide i haku ʻia me nā ʻāpana glucose. Hiki ke loaʻa ka cellulose mai nā kumu like ʻole, me ka pulp lāʻau, ka pulupulu, a me nā mea kanu ʻē aʻe. A laila mālama ʻia ka cellulose me kahi kaʻina kemika e hana i ka hydroxypropyl methylcellulose.

 

3. Hana Hana

ʻO ke kaʻina hana o HPMC e pili ana i kekahi mau ʻanuʻu. ʻO ka mea mua, mālama ʻia ka cellulose me kahi alkali, e like me ka sodium hydroxide, e hana i kahi cellulose alkali. Hoʻopili ʻia kēia cellulose alkali me ka methyl chloride a me ka propylene oxide e hana i ka hydroxypropyl methylcellulose. Hoʻomaʻemaʻe ʻia a hoʻomaloʻo ʻia ka hydroxypropyl methylcellulose e lilo i pauka keʻokeʻo.

 

4. Mana Mana

He ʻāpana koʻikoʻi ka mana maikaʻi o ka hana hana o HPMC. Hoʻoholo ʻia ka maikaʻi o ka huahana e ka maʻemaʻe o ka cellulose, ke kiʻekiʻe o ka hoʻololi ʻana o ka hui hydroxypropyl, a me ke ʻano o ka hoʻololi ʻana o ka hui methyl. Hoʻoholo ʻia ka maʻemaʻe o ka cellulose ma ka hoʻāʻo ʻana i ka viscosity o ka hopena, aʻo ka degere o ka hoʻololi ʻana e hoʻoholo ʻia ma ka hoʻāʻo ʻana i ka degere o ka hydrolysis o ka hydroxypropyl methylcellulose.

 

5. Packaging

Hoʻokomo pinepine ʻia ʻo HPMC i loko o nā ʻeke a pahu paha. Hana ʻia nā ʻeke i ka polyethylene a i ʻole polypropylene, aʻo nā pahu i hana ʻia i ke kila a i ʻole ka plastic. Pono e koho ʻia ka mea hoʻopili e hōʻoia i ka pale ʻana o ka huahana mai ka makū a me nā mea ʻē aʻe.

 

6. Waihona

Pono e mālama ʻia ka HPMC ma kahi maloʻo a maloʻo, ma kahi mamao o ka lā a me nā kumu wela ʻē aʻe. Pono e pale ʻia ka huahana mai ka makū a me nā mea kūlohelohe ʻē aʻe.

 

7. Ka hopena

ʻO ka HPMC kahi polymer hiki ke hoʻohana nui ʻia i ka wai i loaʻa mai ka cellulose. Hoʻohana ʻia ia i nā ʻoihana like ʻole, me ka ʻoihana meaʻai, lāʻau lapaʻau, a me nā ʻoihana hoʻonaninani. ʻO ke kaʻina hana o HPMC e pili ana i kekahi mau ʻanuʻu, me ka mālama ʻana i ka cellulose me kahi alkali, ka hopena o ka cellulose alkali me ka methyl chloride a me ka propylene oxide, a me ka hoʻomaʻemaʻe a me ka maloʻo ʻana o ka hydroxypropyl methylcellulose. He ʻāpana koʻikoʻi ka mālama ʻana i ka maikaʻi o ke kaʻina hana, a pono e mālama ʻia ka huahana ma kahi maloʻo a maloʻo, ma kahi mamao o ka lā a me nā kumu wela ʻē aʻe.


Ka manawa hoʻouna: Feb-07-2023
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