Kemika o METHOCEL™ Cellulose Ethers

METHOCELʻO ™ kahi hōʻailona o cellulose ethers i hana ʻia e Dow. Loaʻa kēia mau cellulose ethers mai ka cellulose, kahi polymer maoli i loaʻa i loko o nā paia o nā mea kanu. ʻO ka kemika o METHOCEL™ e pili ana i ka hoʻololi ʻana o ka cellulose ma o nā hopena etherification. ʻO nā ʻano mua o METHOCEL™ he Hydroxypropyl Methylcellulose (HPMC) a me Methylcellulose (MC), kēlā me kēia me nā ʻano kemika kikoʻī. Eia ka ʻike nui o ka kemika o METHOCEL™:

1. Hydroxypropyl Methylcellulose (HPMC):

• Kapili:
  • ʻO ka HPMC he cellulose ether hiki ke hoʻoheheʻe ʻia i ka wai me ʻelua mau mea pani: hydroxypropyl (HP) a me methyl (M) pūʻulu.
  • Hoʻokomo nā pūʻulu hydroxypropyl i ka hana hydrophilic, hoʻonui i ka hoʻoheheʻe wai.
  • Hāʻawi nā hui methyl i ka solubility holoʻokoʻa a hoʻoikaika i nā waiwai o ka polymer.
• Pane hoʻopaneʻe:
  • Hana ʻia ka HPMC ma o ka etherification o cellulose me ka propylene oxide (no nā hui hydroxypropyl) a me ka methyl chloride (no nā hui methyl).
  • Hoʻomalu pono ʻia nā ʻano hopena no ka loaʻa ʻana o ke degere o ka hoʻololi ʻana (DS) i makemake ʻia no nā hui hydroxypropyl a me methyl.
• Nā waiwai:
  • Hōʻike ka HPMC i ka hoʻoheheʻe wai maikaʻi loa, nā waiwai hana kiʻiʻoniʻoni, a hiki ke hāʻawi i ka hoʻokuʻu hoʻokuʻu ʻia i nā noi lāʻau.
  • Hoʻopili ke degere o ka hoʻololi ʻana i ka viscosity o ka polymer, ka paʻa wai, a me nā waiwai ʻē aʻe.

2. Methylcellulose (MC):

• Kapili:
  • ʻO ka MC he cellulose ether me nā methyl substituents.
  • Ua like ia me HPMC akā nele nā ​​pūʻulu hydroxypropyl.
• Pane hoʻopaneʻe:
  • Hoʻokumu ʻia ka MC ma ka etherifying cellulose me ka methyl chloride.
  • Hoʻomaluʻia nā kūlana hoʻonā e loaʻa ai ke kūlana o ka hoʻololi i makemakeʻia.
• Nā waiwai:
  • Hiki ke hoʻoheheʻe ʻia ʻo MC i ka wai a loaʻa nā noi i nā lāʻau lapaʻau, kūkulu hale, a me nā ʻoihana meaʻai.
  • Hoʻohana ʻia ia ma ke ʻano he mea hoʻopaʻa, mānoanoa, a me ka stabilizer.

3. Nā waiwai maʻamau:

• Hoʻoheheʻe wai: Hiki ke hoʻoheheʻe ʻia ka HPMC a me ka MC i ka wai anuanu, e hana ana i nā hāʻina maʻemaʻe.
• Hoʻokumu kiʻiʻoniʻoni: Hiki iā lākou ke hana i nā kiʻiʻoniʻoni maʻalahi a paʻa, e hoʻohana pono iā lākou i nā noi like ʻole.
• Mānoanoa: ʻO METHOCEL™ cellulose ethers e hana ma ke ʻano he mānoanoa maikaʻi, e hoʻohuli ana i ka viscosity o nā hopena.

4. Nā noi:

• ʻO nā lāʻau lapaʻau: Hoʻohana ʻia i loko o nā pale papa, nā mea hoʻopili, a me nā ʻano hoʻokuʻu hoʻokuʻu ʻia.
• Hana ʻia: Hoʻohana ʻia i nā morta, nā mea hoʻopili tile, a me nā mea kūkulu hale ʻē aʻe.
• Meaʻai: Hoʻohana ʻia e like me nā mānoanoa a me nā stabilizer i nā huahana meaʻai.
• Mālama Pilikino: Loaʻa i loko o nā mea hoʻonaninani, shampoos, a me nā mea mālama pilikino ʻē aʻe.

ʻO ka kemika o METHOCEL ™ cellulose ethers e hoʻolilo iā lākou i nā mea maʻalahi me ka nui o nā noi, e hāʻawi ana i ka mana ma luna o nā waiwai rheological, mālama wai, a me nā ʻano pono ʻē aʻe i nā ʻano hana like ʻole. Hiki ke hoʻohālikelike ʻia nā waiwai kikoʻī ma ka hoʻoponopono ʻana i ke kiʻekiʻe o ka hoʻololi a me nā ʻāpana hana ʻē aʻe.