Udidi: I-Thermoset Powder Coating
Thermosett powder ukutyabeka isebenzisa i-thermoset resin njengento yokwenza ifilimu, yongeza i-ejenti yokunyanga kwi-cross-linking reaction, kwaye yenza i-coating eqinile enganyibilikiyo kunye ne-infusible emva kokufudumeza. Kuba i-resin esetyenziswa kwi-thermoset powder yokwambathisa iyi-prepolymer enenqanaba elisezantsi lepolymerization, ubunzima bemolekyuli busezantsi, umgangatho wokwaleka ungcono, kwaye unomhombiso ongcono, kunye ne-prepolymer ephantsi yobunzima bemolekyuli inokunyangeka emva kokunyanga. . I-macromolecules zenza inethiwekhi idityaniswe ngokunqamlezileyo, ngoko ke i-coating inokumelana ne-corrosion engcono kunye neempawu zoomatshini.
I-Thermoset powder yokwambathisa inokwahlulwa ngokwezi ndidi zilandelayo:
I-1.Thermoset i-polyester yomgubo wokugquma
2. Iingubo ze-Thermoset epoxy powder
3. Iingubo ze-Thermoset polyurethane powder
4. Thermoset epoxy polyester powder ukutyabeka
advanteji:
1. Ukhuseleko lwezempilo kunye nokusingqongileyo.
Zonke iintlobo zezongezo eziyingozi zekhemikhali ezilulwelo ezongeziweyo ukuphumeza ukusebenza kokugquma, njengokubumba ifilimu, ukusabalalisa, ukumanzisa, ukulinganisa, ukuchasana nokubola kunye nezongezo zobungqina bokungunda, azifakwanga.
2. Uthutho olululo kunye nokugcinwa
Iipeyinti eziqhelekileyo ziqulethe malunga ne-20-50% yamanzi okanye i-solvent, ngelixa iingubo zomgubo zingenawo amanzi okanye i-solvent, kwaye ziqinile ngokupheleleyo, ezilungele kwaye zikhuselekile ukuthutha. Ukongezelela, iingubo eziqulethe amanzi okanye i-solvents zinokuthuthwa kwaye zigcinwe kumaqondo aphantsi. Kwi-0 ° C, ithanda ukukhenkceza, kwaye iingubo zomgubo azinayo le ngxaki.
3. Ipeyinti ivumba
Xa kuthelekiswa nentsalela yevumba lemfuzaral ipeyinti yemveli, umgubo ukutyabeka phantse akukho ivumba.
Ukusilela:
Iimeko zokunyanga zinemida ethile.
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