He biopolymer anei ka HPMC?

ʻO ka Hydroxypropylmethylcellulose (HPMC) kahi hoʻololi synthetic o cellulose, he polymer maoli i loaʻa i nā paia o nā mea kanu. ʻOiai ʻaʻole ʻo HPMC ponoʻī he biopolymer no ka mea ua hoʻohui ʻia me ke kemika, ua manaʻo pinepine ʻia he biopolymers semi-Synthetic a i hoʻololi ʻia.

A. Introduction to hydroxypropyl methylcellulose:

Hydroxypropyl methylcellulose (HPMC):

ʻO ka Hydroxypropylmethylcellulose (HPMC) he mea ia o ka cellulose, he polymer linear i haku ʻia me nā ʻāpana glucose. ʻO ka Cellulose ka mea nui i kūkulu ʻia o nā paia o nā mea kanu. Hana ʻia ka HPMC ma ka hoʻololi ʻana i ka cellulose me ka hoʻohui ʻana i nā hui hydroxypropyl a me methyl.

B. Kapili a me ka hana:

1. Kemimi hale:

ʻO ka hoʻolālā kemika o HPMC he pūʻulu iwi hope cellulose e lawe ana i nā hui hydroxypropyl a me methyl. ʻO ke degere o ka hoʻololi ʻana (DS) e pili ana i ka helu awelika o nā pūʻulu hydroxypropyl a me nā pūʻulu methyl no ka ʻāpana glucose i ke kaulahao cellulose. Hoʻololi kēia hoʻololi i nā waiwai kino a me nā mea kemika o ka cellulose, ka hopena i ka nui o nā māka HPMC me nā ʻano viscosities, solubility a me nā waiwai gel.

2. Nā waiwai kino:

Solubility: Hoʻoheheʻe ʻia ka HPMC i ka wai a hana i nā hāʻina maʻemaʻe, e lilo ia i mea waiwai nui i nā ʻano noi like ʻole me nā lāʻau lapaʻau, nā meaʻai, a me ke kūkulu ʻana.

Viscosity: Hiki ke hoʻomalu ʻia ka viscosity o ka solution HPMC ma ka hoʻoponopono ʻana i ke kiʻekiʻe o ka hoʻololi a me ke kaumaha molekala o ka polymer. He mea koʻikoʻi kēia waiwai no nā noi e like me nā mea hana lāʻau lapaʻau a me nā mea hana.

3. Hana:

Mānoanoa: Hoʻohana mau ʻia ka HPMC ma ke ʻano he mānoanoa i nā meaʻai, lāʻau lapaʻau, a me nā huahana mālama pilikino.

Kiʻiʻoniʻoni: Hiki iā ia ke hana i nā kiʻiʻoniʻoni a hiki ke hoʻohana ʻia no ka uhi ʻana i nā papa lāʻau lapaʻau a me nā capsules, a me ka hana ʻana i nā kiʻiʻoniʻoni no nā ʻano noi like ʻole.

Paʻa Wai: Ua ʻike ʻia ʻo HPMC no kāna mau waiwai mālama wai, e kōkua ana i ka hoʻomaikaʻi ʻana i ka hana a me ka hydration o nā mea hale e like me nā huahana sima.

C. No ka HPMC:

1. Nā lāʻau lapaʻau:

ʻO ka Papa Paʻi: Hoʻohana ʻia ʻo HPMC e hana i nā pale papa e hoʻomalu i ka hoʻokuʻu ʻana i ka lāʻau a hoʻomaikaʻi i ka paʻa.

Hāʻawi i ka lāʻau lapaʻau waha: ʻO ka biocompatibility a me nā waiwai hoʻokuʻu i hoʻomalu ʻia o HPMC e kūpono ia no nā ʻōnaehana lawe lāʻau waha.

2.Construction oihana:

Nā Huahana Moka a me Cement: Hoʻohana ʻia ʻo HPMC i nā mea hana e hoʻonui ai i ka mālama ʻana i ka wai, ka hana a me ka pili.

3. ʻOihana meaʻai:

Mānoanoa a me Stabilizers: Hoʻohana ʻia ʻo HPMC ma ke ʻano he mānoanoa a me ka stabilizer i nā meaʻai e hoʻomaikaʻi i ke ʻano a me ke kūpaʻa.

4. Nā huahana mālama pilikino:

Hoʻohui ʻia nā mea hoʻonani: Hoʻohui ʻia ʻo HPMC i loko o nā mea hoʻonaninani no kāna mau mea hana kiʻiʻoniʻoni a me ka mānoanoa.

5. Nā pena a me nā uhi:

ʻO nā uhi wai: Ma ka ʻoihana uhi, hoʻohana ʻia ka HPMC i nā hoʻoheheʻe wai e hoʻomaikaʻi i ka rheology a pale i ka hoʻonohonoho ʻana i ka puaʻa.

6. Nā manaʻo kaiapuni:

ʻOiai ʻo HPMC ʻaʻole ia he polymer biodegradable piha, ʻo kona kumu cellulosic e hoʻohālikelike ʻia me nā polymers synthetic piha. Hiki i ka HPMC ke biodegrad ma lalo o kekahi mau kūlana, a ʻo kona hoʻohana ʻana i nā mea hoʻomohala hoʻomau a me ka biodegradable kahi wahi o ka noiʻi mau.

ʻO Hydroxypropylmethylcellulose (HPMC) kahi polymer semi-synthetic multifunctional i loaʻa mai ka cellulose. ʻO kāna mau waiwai kūʻokoʻa he mea waiwai ia i nā ʻoihana like ʻole me ka lāʻau lapaʻau, ke kūkulu ʻana, ka meaʻai, ka mālama pilikino a me ka pena. ʻOiai ʻaʻole ʻo ia ke ʻano maʻemaʻe o ka biopolymer, ʻo kona kumu cellulose a me ka biodegradation hiki i ka laina me ka ulu ʻana o ka noi no nā mea hoʻomau mau i nā noi like ʻole. Ke hoʻomau nei ka noiʻi e ʻimi i nā ala e hoʻomaikaʻi ai i ka hoʻohālikelike kaiapuni o HPMC a hoʻonui i kona hoʻohana ʻana i nā ʻano hana hoʻonaninani.