ʻO Hydroxyethyl cellulose (HEC) a me ka hydroxypropyl methyl cellulose (HPMC) nā mea mānoanoa i hoʻohana pinepine ʻia.ʻO lākou nā ʻāpana o nā adhesive elastic hiki ke hoʻohana ʻia e hāʻawi i ke kū'ē, hoʻonui i ka viscosity, a i ʻole e hāʻawi i ka ductility.Ua like kā lākou hui kemika, akā aia kekahi mau ʻokoʻa.
ʻO HEC kahi analogue ethylene-acetate ka nui o ka formaldehyde, methanol a me ka sodium hydroxide.He thixotropic kiʻekiʻe a hiki ke hoʻohana ʻia e like me nā lubricants, nā mea lapaʻau ʻili a me nā mea hoʻopili no nā lako uila a me nā ʻoihana.Hiki ke hoʻohana ʻia ʻo Hecs ma ke ʻano he mānoanoa, dispersants a me nā mea paʻakikī.
ʻO HPMC kekahi analogue ethylene-acetate, ʻo ia ka nui o ka methanol, sodium hydroxide, a me ka carbonate.Loaʻa iā ia ka viscosity kiʻekiʻe, elasticity a me ka expansibility, hiki ke hoʻohana ʻia e like me nā adhesives, nā pena, nā mea hoʻomaʻemaʻe a me nā mea hoʻohui inika.Eia kekahi, hiki ke hoʻohana ʻia no ka hoʻomākaukau aniani a loaʻa ka paʻa o ka ʻōnaehana maʻalahi.
ʻO ka Hydroxyethyl cellulose HEC, ma ke ʻano he surfactant non-ionic, loaʻa iā ia nā waiwai aʻe me ka mānoanoa, hoʻokuʻu, adhesion, lana, hoʻokumu kiʻiʻoniʻoni, hoʻopuehu, paʻa wai a me nā hopena colloidal pale:
1, hydroxyethyl cellulose HEC hiki ke hoʻoheheʻe ʻia i ka wai wela a i ʻole ka wai anuanu, kiʻekiʻe ka wela a i ʻole ka paila ʻana ʻaʻole e precipitate, i loaʻa iā ia kahi ākea o ka solubility a me nā ʻano viscosity, a me ka waiwai gel non-wela;
2, hydroxyethyl cellulose HEC iho non-ionic type hiki coexist me ka laulā o ka wai-soluble polymers, surfactants, paakai, he 'ano o ka colloidal mānoanoa i loaʻa kiʻekiʻe electrolyte solution;
3, hydroxyethyl cellulose HEC hiki ke paʻa i ka wai he ʻelua kiʻekiʻe ma mua o ka methyl cellulose, me ka hoʻoponopono kahe;
4. ʻAʻole maikaʻi ka dispersion o ka hydroxyethyl cellulose HEC i ka hoʻohālikelike ʻia me ka methyl cellulose a me ka hydroxypropyl methyl cellulose, akā ikaika ka pale o ka colloid.
Ke kumu: Hoʻohana maʻamau e like me ka mea mānoanoa, mea pale pale, adhesive, stabilizer a me ka hoʻomākaukau ʻana i ka pena latex, lacquer, inika.ʻO nā mea hoʻohui i hoʻohana ʻia i ka ʻaila ʻaila, gels, ʻaila, lotion, eye clearers, suppositories a me nā papa, hoʻohana pū ʻia e like me ka hydrophilic gels, skeleton material, hoʻomākaukau ʻana i ka hoʻomākaukau hoʻokuʻu hoʻokuʻu ʻana, a hiki ke hoʻohana ʻia e like me nā stabilizers i ka meaʻai.