Mitundu ya Thermoplastic Powder Coatings

Mitundu ya Thermoplastic Powder Coatings

Thermoplastic powder zokutira mitundu makamaka amakhala ndi mitundu iyi:

  • Polypropylene
  • Polyvinyl mankhwala enaake (PVC)
  • Polyamide (nayiloni)
  • Polyethylene (PE)

Ubwino wake ndi wabwino kukana mankhwala, kulimba ndi kusinthasintha, ndipo angagwiritsidwe ntchito zokutira wandiweyani. Zoyipa zake ndi kusawoneka bwino, kusasunthika bwino komanso kusamata bwino.

Kumayambiriro kwachindunji kwa mitundu yokutira ya thermoplastic powder:

Kupaka utoto wa polypropylene

Polypropylene ufa wokutira ndi thermoplastic ufa woyera ndi tinthu awiri 50 ~ 60 mauna. Itha kugwiritsidwa ntchito polimbana ndi dzimbiri, kujambula ndi zina.

Ndi chophimba cha thermoplastic chopangidwa ndi polypropylene monga utomoni wa matrix ndikusinthidwa ndikusintha kwathupi ndi mankhwala. Ili ndi machitidwe otsatirawa: kukana nyengo yabwino, kukana kwa dzimbiri kwa mankhwala, komanso kumamatira kwambiri kuzitsulo (monga chitsulo) magawo. Njira yogwiritsira ntchito: bedi lamadzimadzi, kutsitsi kwa electrostatic ndi kutsitsi lamoto. Kuphimba pamwamba ndi lathyathyathya, makulidwe ndi yunifolomu ndipo akhoza kusinthidwa mosasamala.

Polyvinyl Chloride (PVC) Powder Powder

Polyvinyl chloride (PVC) yokutira ufa uli ndi mitundu yosiyanasiyana mtundu masanjidwe, kukana nyengo yabwino, kukana kwamphamvu kwa filimu yokutira, kukana mowa, mafuta, ndi zosungunulira za hydrocarbon zonunkhira, mphamvu zamakina apamwamba, komanso kusinthasintha kwapadera. Kukaniza kwapamwamba kwambiri ndi (4.0-4.4) × 10 4 V / mm , filimu yophimba ndi yosalala, yowala komanso yokongola, ndipo mtengo wake ndi wotsika.

The polyvinyl kolorayidi ufa ❖ kuyanika akhoza choviikidwa mu fluidized bedi, ndi tinthu kukula ❖ kuyanika ufa ayenera kukhala 100μm-200μm; kapena electrostatic ufa ❖ kuyanika, tinthu kukula ❖ kuyanika ufa chofunika kukhala 50μm-100μm.

Polyamide (Nayiloni) Powder Powder

Utoto wa Polyamide, womwe umadziwika kuti nayiloni, ndi utomoni wa thermoplastic womwe umagwiritsidwa ntchito mosiyanasiyana. Utoto wa polyamide uli ndi zabwino zonse, kuuma kwakukulu, makamaka kukana kwamphamvu kwambiri. Kanema wake wokutira ali ndi ma coefficients ang'onoang'ono osasunthika komanso osunthika, ali ndi mphamvu yopaka mafuta, ndipo amakhala ndi phokoso lotsika pogwira ntchito. Ndi nsalu yabwino yosamva kuvala yopanda nsalu. Mafuta ❖ kuyanika ndi kusinthasintha bwino ndi kumamatira kwambiri, kukana mankhwala, zosungunulira kukana, ntchito ❖ kuyanika nsalu makina mayendedwe, magiya, mavavu, zotengera mankhwala, zotengera nthunzi, etc.

Kupaka Powder Polyethylene

Polyethylene powder yokutira ndi anti-corrosion powder yokutira yopangidwa ndi high-pressure polyethylene (LDPE) monga maziko, kuwonjezera zosiyanasiyana zowonjezera ntchito ndi kukonzekera mitundu. Wosanjikiza wokutira amakhala ndi kukana kwamphamvu kwamankhwala, kukana kukalamba, kukana kwamphamvu komanso kukana kupindika. , asidi kukana, mchere kutsitsi dzimbiri kukana, ndipo ali ndi ntchito zokongoletsa pamwamba pamwamba.

Ndemanga Zatsekedwa