ngā hua

Ngā kupu taurite i te reo Pākehā

Ethylene glycol, 1, 2-ethylenediol, EG te whakarapopototanga

ngā āhuatanga matū

Tātai matū: (CH2OH)2 Taumaha ngota: 62.068 CAS: 107-21-1 EINECS: 203-473-3 [5 Pūwāhi rewa: -12.9 ℃ Pūwāhi koropupū: 197.3 ℃

Te whakataki me ngā āhuatanga o te hua

Ko te CH2OH2, koinei te diol māmā rawa. He wai reka, kāore he tae, kāore he kakara, he iti te paitini ki ngā kararehe te ethylene glycol. Ka taea te wairewa ngātahi i te ethylene glycol ki te wai me te acetone, engari he iti tōna wairewatanga i roto i ngā ethers. Ka whakamahia hei whakarewa, hei ārai huka me te rauemi mata polyester hangai. Ko te polymer o te ethylene glycol, polyethylene glycol (PEG), he whakakorikori whakawhiti āhuahanga, ā, ka whakamahia hoki i roto i te hanumi pūtau.

whakamahi

Ko te nuinga o te wā e whakamahia ana mō te hanga polyester, polyester, polyester resin, ngongo makuku, plasticizer, kaiāwhina mata, muka hangai, whakapaipai me ngā mea pahū, ā, hei whakarewa mō ngā tae, waituhi, me ētahi atu, te whakarite i te kaiāwhina ārai huka o te miihini, te kaiāwhina whakamaroke hau, te hanga kaiāwhina, ka taea hoki te whakamahi mō te cellophane, te muka, te hiako, te kaiāwhina whakamakuku piri. Ka taea te whakaputa kaiāwhina hangai PET, te muka PET he muka polyester, te PET poro pounamu mō te hanga pounamu wai kohuke me ētahi atu. Ka taea hoki te whakaputa kaiāwhina alkyd, glyoxal, me ētahi atu, ka whakamahia hoki hei ārai huka. Haunga te whakamahi hei ārai huka mō ngā motuka, ka whakamahia hoki mō te kawe i te kaha whakamatao ahumahi, e kiia ana ko te kawe refrigerant, ā, ka taea hoki te whakamahi hei kaiāwhina whakatōtō pērā i te wai.
Ko ngā hua o te raupapa Ethylene glycol methyl ether he whakarewa waro kounga teitei, hei waituhi tā, hei horoi ahumahi, hei paninga (peita muka hauota, wanihi, enamel), pereti parahi pania, hei whakarewa tā me te tae me ngā mea whakarewa; Ka taea te whakamahi hei rauemi mata mō ngā hua matū pēnei i ngā takawaenga patu pepeke, ngā takawaenga rongoā me te wai parai hangai. Hei electrolytes mō ngā pūnga hiko, hei kaihoko tae muka matū mō te tanning, me ētahi atu. Whakamahia hei āwhina kakahu, hei tae wai hangai, me te whakamahine tongi me te hinu i roto i te hanga rauemi mata desulfurizer.
Me mōhio ki ngā āhuatanga o te ethylene glycol ina whakamahia hei kawe hauhautanga:
1. Ka rerekē te pūwāhi tio i te kukū o te ethylene glycol i roto i te wairewa. Ina iti iho te kukū i te 60%, ka heke te pūwāhi tio i te pikinga o te kukū o te ethylene glycol i roto i te wairewa, engari ina neke atu te kukū i te 60%, ka piki te pūwāhi tio i te pikinga o te kukū o te ethylene glycol, ā, ka piki te matotoru i te pikinga o te kukū. Ina eke te kukū ki te 99.9%, ka piki tōna pūwāhi tio ki te -13.2℃, he take nui tēnei e kore ai e taea te whakamahi tika i te ārai tio kukū (wai whaea ārai tio), ā, me kukume i te aro o te kaiwhakamahi.
2. Kei roto i te ethylene glycol te rōpū hydroxyl, ka waikurahia hei waikawa glycolic, kātahi ka waikawa oxalic, arā, te waikawa glycolic (waikawa oxalic), kei roto ngā rōpū carboxyl e rua, ina mahi i te 80-90 ℃ mō te wā roa. Ka pā te waikawa oxalic me ōna hua taha ki te pūnaha io matua, kātahi ki te ngākau, kātahi ki ngā whatukuhu. Ka puta te waikura me te turuturu o ngā taputapu i te waikawa glycolic ethylene glycol. Nō reira, i te wā e whakarite ana i te ārai huka, me whai matū tiaki hei ārai i te waikura o te maitai, te konumohe me te hanganga o te unahi.

mōkihi me te kawe

B. Ka taea te whakamahi i tēnei hua, 25KG, 200KG, 1000KGBAERRLS.
C. Penapenahia kia hiri ki roto i te wāhi hauhautanga, maroke, me te hauhautanga. Me hiri rawa ngā ipu i muri i ia whakamahinga i mua i te whakamahinga.
D. Me hiri pai tēnei hua i te wā e kawe ana kia kore ai e uru te makuku, te kawakore me te waikawa kaha, te ua me ētahi atu poke.