- 12
- Apr
Makhalidwe a ntchito ya chitoliro cha epoxy
Makhalidwe a ntchito ya chitoliro cha epoxy
Makhalidwe a ntchito ya chitoliro cha epoxy:
1. Mitundu yosiyanasiyana. Mitundu yosiyanasiyana ya ma resin, machiritso, ndi makina osinthira alipo kuti agwirizane ndi zofunikira zamtundu uliwonse wa ntchito, kuyambira ma viscosity otsika kwambiri mpaka zolimba zosungunuka kwambiri.
2. Zosavuta kuchiza. Pogwiritsa ntchito machiritso osiyanasiyana, makina a epoxy resin amatha kuchiritsidwa pa kutentha kwa 0 mpaka 180 °C.
3. Kumamatira mwamphamvu. Kukhalapo kwa polar hydroxyl ndi ma ether bond omwe ali mumtundu wa molekyulu ya epoxy resin [1] kumapangitsa kuti ikhale yomatira kwambiri kuzinthu zosiyanasiyana. Ma epoxy resins amakhala ndi kuchepa pang’ono akachiritsidwa ndipo amatulutsa kupsinjika pang’ono kwamkati, komwe kumathandizanso kuti kumamatira kumalire.
4. Kutsika kochepa. Zomwe utomoni wa epoxy ndi wochiritsa womwe umagwiritsidwa ntchito umachitika ndikuwonjezera mwachindunji kapena kutsegula polima kwamagulu a epoxy mu molekyulu ya utomoni, popanda kutulutsa madzi kapena zinthu zina zosakhazikika. Amawonetsa kuchepa kwambiri (osakwana 2%) panthawi yochiritsa poyerekeza ndi unsaturated polyester resins ndi phenolic resins.
5. Mawotchi katundu. Makina ochiritsidwa a epoxy resin ali ndi mawonekedwe abwino kwambiri.