Focus on Cellulose ethers

Ntchito za HPMC/HEC mu Zomangamanga

Ntchito za HPMC/HEC mu Zomangamanga

Hydroxypropyl methylcellulose (HPMC) ndi Hydroxyethyl cellulose (HEC) onse ndi ma ether a cellulose omwe amagwiritsidwa ntchito popanga zomangamanga chifukwa cha magwiridwe antchito osiyanasiyana. Nazi zina mwazochita za HPMC/HEC pazomangira:

  1. Kusungirako madzi: HPMC/HEC imatha kusunga madzi muzomangamanga, kuwongolera magwiridwe antchito ndikuchepetsa chiopsezo chosweka ndi kuchepa. Amapanga filimu yopyapyala kuzungulira tinthu ta simenti, zomwe zimachepetsa kutuluka kwa madzi panthawi yochiritsa.
  2. Kukhuthala: HPMC/HEC imatha kukulitsa zida zomangira, kuwongolera mawonekedwe awo amtundu komanso kumamatira. Iwo kuonjezera mamasukidwe akayendedwe osakaniza, kuchepetsa chiopsezo sagging ndi kudontha.
  3. Kumanga: HPMC/HEC imatha kukhala ngati chomangira pazomangira, kukonza mphamvu zamakina ndi kukhazikika. Amapanga mgwirizano wamphamvu ndi tinthu tating'ono ta simenti, kupititsa patsogolo mgwirizano wa osakaniza.
  4. Chitetezo cha pamwamba: HPMC/HEC imatha kuteteza pamwamba pa zida zomangira kuzinthu zachilengedwe monga chinyezi, kuwala kwa UV, komanso kukhudzidwa ndi mankhwala. Amapanga filimu yopyapyala pamwamba pa zinthuzo, kuchepetsa chiopsezo cha kuwonongeka ndi kupititsa patsogolo kukhazikika kwa zinthuzo.
  5. Kupaka mafuta: HPMC/HEC imatha kukhala ngati mafuta opangira zida zomangira, kuwongolera zomwe zikuyenda komanso kuchepetsa chiwopsezo cha kuphatikizika ndi tsankho. Iwo amachepetsa kukangana pakati pa simenti particles, utithandize workability wa osakaniza.

Ponseponse, magwiridwe antchito a HPMC/HEC amawapangitsa kukhala ofunikira pazomangira, kupititsa patsogolo magwiridwe antchito awo, ndikuwongolera magwiridwe antchito awo. Amagwiritsidwa ntchito kwambiri pazinthu zosiyanasiyana, monga matope a simenti, zomatira matailosi, zida zopangidwa ndi gypsum, ndi zokutira.


Nthawi yotumiza: Mar-21-2023
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