Kodi ubwino ndi kuipa kwake kowonjezera hydrotalcite ku calcium zinc stabilizers ndi chiyani?

Hydrotalc ndi chinthu chofunikira kwambiri chopangira calcium zinc stabilizers. Hydrotalc ili ndi mawonekedwe apadera komanso katundu, ndipo zinthu zake zofunika kwambiri ndi alkalinity ndi multi porosity, ndi ntchito yapadera komanso yabwino kwambiri komanso yogwira mtima. Imatha kuyamwa bwino hydrogen chloride yomwe idatulutsidwa pakuwonongeka kwa PVC, ndikuchepetsa kukhazikika kwa hydrogen chloride pa PVC resin, ndikuchita ngati kuyamwa kwa asidi, komwe kumadziwikanso kuti kukhazikika kwamafuta. Amagwiritsidwa ntchito ngati matenthedwe stabilizer.
Hydrotalc ilinso ndi maubwino owonekera bwino, kutsekereza, kukana nyengo, komanso kusinthika. Siyimayipitsidwa ndi sulfides, yopanda poizoni, ndipo imatha kugwira ntchito molumikizana ndi zowongolera kutentha monga sopo wa zinki ndi malata achilengedwe. Ndi mtundu woyembekeza kwambiri wopanda poizoni wothandizira kutentha stabilizer.
Kapangidwe ka hydrotalcite ndi wosanjikiza ndi lalikulu interlayer katayanitsidwe wa 0.76-0.79nm, ndipo ali lalikulu enieni pamwamba dera, amene amalola pamwamba hydroxyl magulu ake mokwanira anachita ndi haidrojeni kolorayidi ndipo ali ndi zotsatira zabwino pa stabilizers.
Zoyipa za hydrotalcite ndi:
1. Pankhani ya kuyera koyambirira, hydrotalcite ilibe mphamvu pakusintha mtundu woyamba wa PVC kaya yokha kapena mogwirizana ndi dongosolo la calcium zinki. Pambuyo pokalamba mu uvuni wotentha wa 180 ℃, mtundu wa chitsanzo umakhala wofiira.
2. Pa kukhazikika kwa kutentha kofiira kwa Congo, ntchito imodzi ya hydrotalcite ikhoza kupititsa patsogolo nthawi ya kutentha kwa PVC, ndipo ndi kuwonjezeka kwa ndalama zowonjezera, nthawi ya kutentha kwa PVC imasonyeza kuwonjezereka, koma kuwonjezeka sikofunikira.
3. Pamene kuphatikiza kwa hydrotalcite ndi kashiamu zinc dongosolo ntchito ngati matenthedwe stabilizer, kutentha bata nthawi PVC ndi bwino kwambiri, ndipo chizolowezi kuwonjezera kutentha kukhazikika nthawi ndi kuonjezera kuwonjezera kuchuluka kumakhutitsidwanso. Choncho, dihydroxy zitsulo hydroxides ayenera m'gulu monga nthawi yaitali wothandiza matenthedwe stabilizers, amene angathe mogwira kuwonjezera nthawi yaitali matenthedwe bata la PVC. Chifukwa chake, pophatikiza ma calcium zinc stabilizers, hydrotalcite ndi imodzi mwazinthu zofunika kwambiri.