He aha ka Starch Etera?

ʻO ka starch ether kahi ʻano starch i hoʻololi ʻia, he kaʻapona i loaʻa mai nā mea kanu. ʻO ka hoʻololi ʻana e pili ana i nā kaʻina hana kemika e hoʻololi i ke ʻano o ka starch, ka hopena i kahi huahana me nā waiwai i hoʻomaikaʻi ʻia a hoʻololi ʻia paha. Loaʻa ka hoʻohana nui ʻana o ka starch ethers i nā noi ʻoihana like ʻole ma muli o ko lākou mau hiʻohiʻona kūʻokoʻa. ʻO kekahi mau ʻano maʻamau o ka starch ethers he hydroxyethyl starch (HES), hydroxypropyl starch (HPS), a me carboxymethyl starch (CMS). Eia nā mea nui o ka starch ethers:

1. Hoʻololi Kemika:

• Hydroxyethyl Starch (HES): Ma HES, hoʻokomo ʻia nā pūʻulu hydroxyethyl i ka mole mole. Hoʻonui kēia hoʻololi i kona hoʻoheheʻe wai a kūpono ia no ka hoʻohana ʻana i nā lāʻau lapaʻau, ma ke ʻano he plasma volume expander, a ma nā noi ʻē aʻe.
• Hydroxypropyl Starch (HPS): Hana ʻia ka HPS ma o ka hoʻokomo ʻana i nā pūʻulu hydroxypropyl i ka hana starch. Hoʻomaikaʻi kēia hoʻololi i nā waiwai e like me ka hoʻoheheʻe wai a me ka hiki ke hana kiʻiʻoniʻoni, e pono ai i nā ʻoihana e like me ka meaʻai, textiles, a me ke kūkulu ʻana.
• Carboxymethyl Starch (CMS): Hana ʻia ʻo CMS ma ka hoʻokomo ʻana i nā pūʻulu carboxymethyl i nā molekole starch. Hāʻawi kēia hoʻololi i nā waiwai e like me ka hoʻomaikaʻi ʻana i ka paʻa ʻana o ka wai, ka mānoanoa, a me ka paʻa ʻana, i mea waiwai i nā noi e like me nā adhesives, textiles, a me nā lāʻau lapaʻau.

2. Hiki i ka wai:

• Hōʻike pinepine ʻia nā ether starch i ka hoʻoheheʻe wai i hoʻohālikelike ʻia me ka starch maoli. ʻOi aku ka maikaʻi o kēia hoʻoheheʻe i hoʻonui ʻia i nā ʻano hana kahi e pono ai ka hoʻoheheʻe wikiwiki ʻana a i ʻole ka hoʻopuehu ʻana i ka wai.

3. ʻO ka Viscosity a me nā mea mānoanoa:

• Hoʻohana ʻia nā ether starch ma ke ʻano he mānoanoa kūpono i nā ʻano hana like ʻole. Hāʻawi lākou i ka hoʻonui ʻana i ka viscosity, he mea waiwai i nā noi e like me nā adhesives, coatings, a me nā huahana meaʻai.

4. Hiki ke hana kiʻiʻoniʻoni:

• ʻO kekahi mau eter starch, ʻoi aku ka hydroxypropyl starch, hōʻike i nā waiwai hana kiʻiʻoniʻoni. ʻO kēia ka mea i kūpono iā lākou no nā noi kahi e makemake ʻia ai ka hana ʻana i kahi kiʻiʻoniʻoni lahilahi a maʻalahi, e like me ka meaʻai a me nā ʻoihana lāʻau.

5. Hoʻopaʻa a hoʻopaʻa i nā waiwai:

• Hoʻohana pinepine ʻia nā ether starch e like me nā stabilizers a me nā mea hoʻopaʻa i nā ʻano hana like ʻole. Kōkua lākou i ka hoʻomaikaʻi ʻana i ka paʻa o nā emulsions a hāʻawi i ka cohesiveness o nā huahana e like me nā papa lāʻau lapaʻau.

6. Hoʻopili i nā noi:

• Loaʻa ka hoʻohana ʻana i ka starch ethers i loko o nā mea hoʻopili, ma ka ʻoihana meaʻai (e laʻa, i nā mea pani gum arabic) a me nā noi meaʻai ʻole (e laʻa, ma ka pepa a me nā mea hoʻopili paʻa).

7. Ka nui lole lole:

• I ka ʻoihana textile, hoʻohana ʻia ka starch ethers i ka hoʻohua ʻana i ka nui e hoʻomaikaʻi i ka ikaika a me ka maʻalahi o nā wili i ka wā ulana.

8. Na Laau Laau Laau:

• Hoʻohana ʻia kekahi mau ether starch i loko o nā hana lāʻau lapaʻau. No ka laʻana, hoʻohana ʻia ka hydroxyethyl starch ma ke ʻano he mea hoʻonui plasma volume.

9. Nā mea kūkulu hale a me nā mea hana:

• Hoʻohana ʻia ka starch ethers, ʻoi aku ka hydroxypropyl starch a me ka carboxymethyl starch, i ka ʻoihana kūkulu hale, ʻoi aku hoʻi i ka hoʻokumu ʻana i ka mortar mix maloʻo. Hāʻawi lākou i ka hoʻomaikaʻi ʻana i ka adhesion, ka hana, a me ka mālama ʻana i ka wai.

10. ʻOihana Meaʻai:

11. Hiki i ka biodegradability:

12. Nā Manaʻo Kaiapuni:

He mea nui e hoʻomaopopo e hiki ke ʻokoʻa nā waiwai kikoʻī a me nā hoʻohana ʻana o ka starch ethers ma muli o ke ʻano o ka hoʻololi a me ka hoʻohana ʻana. Hāʻawi nā mea hana i nā kikoʻī kikoʻī kikoʻī no kēlā me kēia ʻano o ka starch ether e alakaʻi i nā mea hoʻokumu i ke koho ʻana i ke ʻano kūpono loa no kā lākou mau noi kikoʻī.