He aha ka ʻaila Methyl Silicone?
ʻO ka maʻamau, methylʻaila siliconehe wai waihoʻoluʻu, ʻono ʻole, ʻona ʻole a me ka wai ʻole. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai, methanol a i ʻole ethylene glycol. Hiki ke hoʻopili ʻia me benzene, dimethyl ether, carbon tetrachloride a i ʻole kerosene. Hiki ke hoʻoheheʻe ʻia i ka acetone, dioxan, ethanol a me ka butanol. ʻO ka ʻaila methyl silicone, no ka mea liʻiliʻi ka ikaika intermolecular, ʻo ke kaulahao molecular he spiral, a hiki ke hoʻololi manuahi ʻia nā hui organik, he mau hiʻohiʻona maikaʻi loa ia o ka hoʻolaha ʻana i ka hana, lubricity, kiʻekiʻe a me ka haʻahaʻa haʻahaʻa haʻahaʻa, kū i ka wā, pale ʻana i ka radiation, kiʻekiʻe flash point, haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka physiological inertia, etc. Ua hoʻohana nui ʻia i nā ʻoihana o kēlā me kēia lākemika, mīkini, uila,lole lole, ka uhi, lāʻau lapaʻau a me ka meaʻai, etc.
The Na ano oʻAila Methyl Silicone
He hana kūikawā nui ka ʻaila silicone methyl.
■ Kūleʻa wela maikaʻi
I loko o ka ʻaila ʻaila silicone, ua haku ʻia ke kaulahao nui -Si-O-Si-, he ʻano like me ka polymer inorganic a loaʻa ka ikehu pili kiʻekiʻe. No laila, loaʻa iā ia ka hana maikaʻi loa o ka pale wela.
■ Kūʻai maikaʻi i ka oxidation a me ka pale ʻana i ka wā
■ Hana maikai insulating uila
He waiwai dielectric maikaʻi loa ka ʻaila silicone. Me ka hoʻololi ʻana o ka mahana a me ka helu pōʻai, hoʻololi liʻiliʻi kona ʻano uila. Ke emi nei ka dielectric mau i ka piʻi ʻana o ka mahana, akā liʻiliʻi loa ka loli. He haʻahaʻa ka mana o ka ʻaila silicone a piʻi me ka piʻi ʻana o ka mahana, akā ʻaʻohe kānāwai no ka pinepine. E emi ana ka leo resistivity me ka pi'i 'ana o ka mahana.
■ ʻO ka hydrophobicity maikaʻi loa
ʻOiai ʻo ke kaulahao nui o ka ʻaila silicone i haku ʻia me ka paʻa polar, Si-O, nā pūʻulu alkyl non-polar ma ke kaulahao ʻaoʻao e kuhikuhi ʻia i waho e pale aku i nā molekole wai mai ke komo ʻana i loko a pāʻani i kahi kuleana hydrophobic. ʻO ka ʻāʻī ma waena o ka ʻaila silicone a me ka wai ma kahi o 42 dynes/cm. Ke hoʻolaha ʻia ma luna o ke aniani, ma muli o kona hoʻopale wai, hiki i ka ʻaila silicone ke hana i kahi kihi pili ma kahi o 103 °, e like me ka paraffin wax.
■ Li'ili'i viscosity-mahana coefficient
He haʻahaʻa ka viscosity o ka ʻaila silicone a hoʻololi liʻiliʻi me ka mahana. Pili ia me ke ʻano spiral o nā ʻaila ʻaila silicone. ʻO ka aila silikoni ka mea me ka maikaʻi o ka viscosity-mahana hiʻona ma waena o nā ʻano lubricants wai. ʻO kēia hiʻohiʻona ka manaʻo nui i nā mea hoʻoheheʻe.
■ Kū'ē kiʻekiʻe i ka hoʻoemi
Ma muli o kona ʻano spiral a me ka mamao intermolecular nui, ʻoi aku ka ikaika o ka ʻaila silicone. Ke hoʻohana nei i kēia ʻano o ka ʻaila silicone, hiki ke hoʻohana ʻia e like me ka puna wai. Ke hoʻohālikelike ʻia me ka puna mechanical, hiki ke hoʻemi nui ʻia ka leo.
■ Haʻahaʻa haʻahaʻa ili
ʻO ka haʻahaʻa haʻahaʻa haʻahaʻa ke ʻano o ka ʻaila silicone. Hōʻike ka haʻahaʻa haʻahaʻa i ka hana ʻili kiʻekiʻe. No laila, ʻoi aku ka maikaʻi o ka defoaming a me ka antifoaming aila silicone, ka hana kaʻawale me nā mea ʻē aʻe a me ka hana lubricating.
■ ʻAʻohe mea ʻawaʻawa, ʻaʻole hoʻololi a physiological inertia
Mai ka manaʻo physiological, ʻo ka polimer siloxane kekahi o nā pūhui hana liʻiliʻi loa i ʻike ʻia. ʻAʻole paʻa ka ʻaila silicone dimethyl i nā mea ola a ʻaʻohe pane hōʻole me nā holoholona. No laila ua hoʻohana nui ʻia i ka ʻoihana ʻokiʻoki a me ka ʻoihana lapaʻau kūloko, lāʻau lapaʻau, meaʻai a me nā mea hoʻonaninani, etc.
■ maikai lubricity
He nui nā waiwai maikaʻi o ka aila silikoni e like me ka lubricant, e like me ke kiko uila kiʻekiʻe, kahi haʻahaʻa hau haʻahaʻa, kūpaʻa wela, liʻiliʻi liʻiliʻi liʻiliʻi me ka mahana, ʻaʻohe corrosion o ka metala a ʻaʻohe hopena maikaʻi ʻole i ka rubber, plastic, pena a me ke kiʻi pena organik, haʻahaʻa. hoʻopaʻapaʻa, maʻalahi e hoʻolaha ma ka ʻili metala a pēlā aku. I mea e hoʻomaikaʻi ai i ke kila i ke kila lubricity o ka ʻaila silicone, hiki ke hoʻohui ʻia nā mea hoʻohui i hiki ke hoʻohui ʻia me ka ʻaila silicone. Hiki ke hoʻomaikaʻi nui ʻia nā waiwai lubricating o ka ʻaila silicone ma ka hoʻokomo ʻana i ka hui chlorophenyl i loko o ke kaulahao siloxan a i ʻole ke hoʻololi ʻana i ka hui dimethyl me ka trifluoropropyl methyl group.
Ka manawa hoʻouna: ʻAukake-09-2021