Ka papa helu o nā mea matrix i nā huahana mālama ʻili (2)

I ka pule i hala aku nei, ua kamaʻilio mākou e pili ana i kekahi mau mea aila a me ka pauka i loko o nā mea matrix cosmetic. I kēia lā, e hoʻomau mākou i ka wehewehe ʻana i nā mea matrix i koe: nā mea gum a me nā mea solvent.

ʻO nā mea waiwai colloidal - nā kahu o ka viscosity a me ke kūpaʻa
ʻO nā mea maka Glial nā pūhui polymer hiki ke hoʻoheheʻe ʻia i ka wai. Hiki i ka hapa nui o kēia mau mea ke hoʻonui i colloid i loko o ka wai e hana i ka pauka paʻa a me ke ʻano. Hiki iā lākou ke hoʻohana ʻia e like me nā emulsifiers e hoʻopaʻa i nā emulsions a i ʻole nā ​​mea hoʻomaha. Eia kekahi, hiki iā lākou ke hana i nā kiʻiʻoniʻoni a mānoanoa i ka gel. Hoʻokaʻawale ʻia nā mea glial raw i hoʻohana ʻia i nā mea hoʻonaninani i ʻekolu mau ʻāpana: kūlohelohe a synthetic, a me semi synthetic.

ʻO nā pūhui polimer hiki ke hoʻoheheʻe ʻia i ka wai maoli: loaʻa pinepine ʻia mai nā mea kanu a holoholona paha, e like me ka starch, ke kāʻei mea kanu (e like me ka Arabic gum), gelatin holoholona, ​​a me nā mea ʻē aʻe. ka honua, a aia ka pilikia o ka hoʻohaumia ʻana e ka maʻi bacteria a i ʻole ka poʻi.

ʻO nā pūhui polymer hiki ke hoʻoheheʻe ʻia i ka wai, me ka polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid, a me nā mea ʻē aʻe, he mau waiwai paʻa, haʻahaʻa haʻahaʻa ʻili, a me nā kumukūʻai haʻahaʻa, pēlā e hoʻololi ai i nā pūhui polymer hiki ke hoʻoheheʻe ʻia i ka wai ma ke ʻano he kumu nui o nā mea colloidal. Hoʻohana pinepine ʻia e like me kahi mea hoʻopili, mānoanoa, mea hana kiʻiʻoniʻoni, a me ka emulsifying stabilizer i nā mea hoʻonaninani.

Semi synthetic wai-soluble polymer pūhui: ʻO nā mea maʻamau he methyl cellulose, ethyl cellulose, carboxymethyl cellulose sodium hydroxyethyl cellulose, guar gum a me nā mea i loaʻa, etc.

Hoʻoheheʻe i nā mea waiwai - kī i ka hemo a me ka paʻa

ʻO ka solvent raw material nā mea koʻikoʻi i loko o ka nui o ka wai, ka paʻi, a me ka hoʻopili ʻana i nā ʻano ʻili mālama ʻili. Ke hui pū ʻia me nā mea ʻē aʻe i loko o ke ʻano, mālama lākou i kekahi mau waiwai kino o ka huahana. ʻO nā mea hoʻoheheʻe maʻamau i hoʻohana ʻia i loko o nā mea hoʻonaninani ka nui o ka wai, ethanol, isopropanol, n-butanol, ethyl acetate, etc. ʻO ka wai ka mea maʻamau i hoʻohana ʻia i nā huahana mālama ʻili.