Anter
A ʻalā he mokuʻāina mea ma waena paʻa a wai. He mea colloidal (hui). ʻO ia, he hoʻohuihui i haku ʻia i ʻelua a ʻoi mau ʻāpana (ua wehewehe ʻia ka pae manawa ma lalo). Hoʻonui ka nui o kona nui ke hiki mai ka pilina me ka wai.
Aia kekahi mau ʻano gels, a ma loko o ia mea ʻoi aku ka nui o ka hoʻohana ʻana i ka lāʻau, (i nā hoʻohana dermatological). Eia nō naʻe, hoʻohana ʻia nā gels no nā huahana onaona, nā meaʻai, nā pena a me nā mea hoʻopili.
Kāhea ʻia ke kaʻina hana e hana ʻia kahi gel gelation
Nā pae o nā gels
ʻElua mau ʻāpana o nā gels; a pae mau ka mea maʻamau paʻa a hoʻokahi wā i hoʻopuehu ʻia ʻo ka hapa nui loa ia wai. ʻOiai ʻo kēia ʻāpana ʻelua he wai, ʻoi aku ka nui o ke kinikini o kahi paʻa ma mua o kahi wai.
ʻO kahi laʻana o ka gel maʻamau jelly. Ma laila mākou e nānā ai i ka pae mau (gelatin i nā granula a i ʻole ka pauka) a wā i hoʻopuehu ʻia (ka gelatin i hui ʻia me ka wai).
ʻO ka pae mau hāʻawi i ke kūlike i ka gel e pale ana iā ia mai ka kahe manuahi ʻana, ʻoiai ka wā i hoʻopuehu ʻia pale iā ia mai ka lilo ʻana i puʻupuʻu paʻa.
Nā hiʻohiʻona o nā gels
Loaʻa i kekahi mau gels ke ʻano o ka hele ʻana mai kahi moku colloidal a i kekahi ʻē aʻe ma ka luliluli wale ʻana. Kāhea ʻia kēia hiʻohiʻona thixotropy. ʻO nā laʻana o kēia kekahi o nā pena, alkaline a me nā uhi latex. ʻO nā gel thixotropic ʻē aʻe: ka wai kōmato, nā pālolo a me nā yogurts.
E loli ke kūlike o nā gels ma waena wai paʻa viscous a nā wai me ka ʻoʻoleʻa kiʻekiʻe. E hilinaʻi kēia i nā mea o ka gel. No laila hiki ke ʻōlelo ʻia ke hōʻike nei nā gels i kekahi kekele o kūpilikiʻi.
Eia nō naʻe, ma ke ʻano he ʻano laulā, akahai nā gels lahilahi.
ʻAno o nā gels
Kaukaʻi ʻia i ke kūlike o nā gela, hiki ke hoʻokaʻawale ʻia kēia mau mea i:
- ʻO Hydrogels. Loaʻa iā lākou kahi kūlike wai. Hoʻohana lākou, ma ke ʻano he hoʻopuehu, wai. Loaʻa ka hapa nui o nā gels ma aneʻi.
- Nā ʻĀhui. Hoʻohālike lākou i nā hydrogels akā hoʻohana i ka solvent o ke kumu kumu. ʻO kahi laʻana o kēia ka crystallization o ka wax i loko o ka aila.
- Xerogeles. He mau gela lākou me kahi helehelena paʻa no ka mea ʻaʻohe o lākou mea hoʻoheheʻe.
Nā hoʻohana o nā gels
E like me ka mea i ʻōlelo ʻia ma mua, hoʻolaha ākea kāna hoʻohana ʻana i ka papa o ka lāʻau, cosmetics, chemistry, etc. Hoʻohana ʻia ia i nā mea hoʻonani, keu hoʻi no ka mālama ʻana i ka lauoho.
I ka lāʻau lapaʻau hoʻohana ʻia lākou no ka mālama ʻana i ka aʻa pepeiao a i ʻole nā puka ihu no ka mea paʻakikī ke komo ʻana i nā ʻauwai ʻelua a paʻakikī ka hoʻohana ʻana i nā lāʻau paʻa no kā lākou hoʻomaʻemaʻe hou ʻana.
Nā laʻana o nā gels
- Pālolo
- Uea puluniu optical. I kēia mau hihia ua hoʻohana ʻia ka aila ʻaila. ʻAe kēia gel i nā olonā e noho maʻalahi.
- Kāpena
- Mīkini ʻauʻau
- ʻ gellika lauoho
- ʻ gellika hoʻēmi
- Gelatin maʻamau
- Jelly
- Nā huna huna mucous (mucus a i ʻole mucus). He mea nui kēia mau mea no ka mea mālama lākou i ka momona o ka piko o ka ihu, pharynx, bronchi a me ka ʻōnaehana hanu i ka nui.
- Pāpaʻa melemele
- Mayonnaise
- Pahu hua (hoʻohui nā pectins e hoʻonui i ke kūlike ʻole)
- Mīkini palupalu
- Ketchup
- Aniani
- Yogurt
Hiki iā ia ke lawelawe iā ʻoe:
- Nā laʻana o nā ʻoi loa, nā wai a me nā Gas
- Nā laʻana o ka Plasma State
- Nā laʻana o Colloids
