Nā huahana
ʻO Dipropylene Glycol
Hui Pū ʻIa
Na Waiwai Kino
Ke ʻano: kala ʻole, wai ʻala ʻole
Kahi hehee:-32°C
Punila paila: 90-95°C1mmHg
Māmā:1.023g/mLat25°C(māmā)
Māmā māhu:4.6(vsair)
Pumi mahu:<0.01mmHg(20°C)<br /> Hoʻohālua:n20/D1.441(ʻā)
Kekahi uila:280°F
Waiwai PH:6-7(100g/l,H2O,20°C)
ʻIkepili Palekana
No ka waiwai weliweli
Code dute: 2909499000
Ka uku hoʻihoʻi ʻauhau i waho (%):13%
Palapala noi
ʻO Didipropylene glycol kahi mea inu waiʻona, kahi i hoʻohana nui ʻia i nā kula e koi ana i nā mea waiwai kiʻekiʻe e like me nā mea ʻala, nā mea hoʻonaninani, nā mea holoi a me nā mea hoʻohui meaʻai.ʻO ka hope he haʻahaʻa haʻahaʻa i ke kumukūʻai, a hoʻohana nui ʻia e like me ka solvent ʻoihana ʻaʻole pono ke kiʻekiʻe o DPG, a me nā mea maka no ka hana ʻana i ka polyester unsaturated a me ka varnish nitrocellulose.
(1) ʻO Dipropylene glycol ka mea hoʻoheheʻe maikaʻi loa no nā mea ʻala a me nā mea hoʻonaninani.He wai maikaʻi loa kēia mea maka, ka aila a me ka hydrocarbon co-solubility a he ʻala ʻoluʻolu, liʻiliʻi ka huhū o ka ʻili, haʻahaʻa haʻahaʻa, ka hāʻawi like ʻana i ka isomer a me ka maikaʻi maikaʻi loa.
(2) Hiki ke hoʻohana ʻia ka dipropylene glycol ma ke ʻano he mea hoʻohui a me ka mea hoʻomaʻemaʻe i nā noi hoʻonaninani he nui.I loko o ka meaʻala, hoʻohanaʻia ka dipropylene glycol ma mua o 50%;i kekahi mau noi ʻē aʻe, hoʻohana maʻamau ka dipropylene glycol ma lalo o 10% ma ke kaumaha.ʻO kekahi mau noi huahana kikoʻī: nā lotions lauoho lauoho, nā mea hoʻomaʻemaʻe ʻili (nā ʻili anu, nā holoi kino, ʻauʻau a me nā lotions kino) nā deodorants, nā maka, nā lima a me nā huahana mālama ʻili kino, nā huahana mālama ʻili a me nā lehelehe.
Hoʻomākaukau: I loko o ka ipu hao 5L, hoʻohui i 30g sodium methanol, 750g propylene oxide a me 2250g propylene glycol ma ke ʻano he alkali catalyst, hoʻouka i ka nitrogen i 0.3MPa, hoʻāla i ka hoʻoulu ʻana, wela a hiki i 110 ℃ i 30 mau minuke, hoʻokuʻu mālie i ka nitrogen i ka wā. ke kaʻina hana hoʻomehana, mālama i ke kaomi i loko o ka ipu hao ma 0.3MPa i ka wā e hoʻomehana ai i ka 120 ℃ ma Chemicalbook, ka manawa pane 2 hola.Ma hope o ka pau ʻana o ka hopena, e hoʻoʻalili i lalo a kaomi i ka mea wai i loko o ka ipu hao.Ua kālailai ʻia ka huahana hopena e ke kinoea chromatography a ʻo ka maʻemaʻe o ka huahana he 99.87%;ʻO ka helu hau hau o ka huahana i loaʻa ma lalo o ke kūlana o ka alkaline catalyst he 4 ℃.
