Kodi Acrylic Powder Coatings ndi chiyani

akiliriki poda kupaka ufa ali ndi zinthu zokongoletsa kwambiri, kukana nyengo, komanso kukana kuwononga chilengedwe, komanso kukhala ndi kuuma kwapamwamba. Kusinthasintha kwabwino. Koma mtengo wake ndi wokwera ndipo kukana kwa dzimbiri ndi koyipa. Choncho, mayiko a ku Ulaya jiniralGwiritsani ntchito ufa wa poliyesitala (wokhala ndi utomoni wa carboxyl, wochiritsidwa ndi TGIC); (hydroxyl-containing polyester resin imachiritsidwa ndi isocyanate) ngati zokutira zaufa zolimbana ndi nyengo.

zikuchokera

Zovala zaufa za Acrylic zimapangidwa ndi ma acrylic resins, pigment ndi fillers, zowonjezera ndi machiritso.

mitundu

Chifukwa cha magulu osiyanasiyana ogwira ntchito omwe ali mu kapangidwe ka maselo, ma resin a acrylic ali ndi mitundu iyi:
1. Acrylic resin okhala ndi glycidyl ether zinchito gulu.
2. Acrylic resin munali carboxyl zinchito gulu.
3. Acrylic resin munali hydroxyl zinchito gulu.

Kuchiritsa Zinthu

Chifukwa cha mapangidwe osiyanasiyana ndi magulu ogwira ntchito omwe ali mu utomoni wa acrylic, machiritso osankhidwa ndi njira zochiritsira ndizosiyana. Pambuyo pa kugwirizanitsa, thupi ndi mankhwala zimakhalanso zosiyana.

Machiritso a zokutira za acrylic powder ndi awa:
Kuchiritsa kutentha: 180 ℃ ~ 200 ℃;
Kuchiritsa nthawi: 15min ~ 20min;

Njira zogwiritsira ntchito zokutira za ufa wa thermosetting zitha kugwiritsidwa ntchito popaka utoto wa acrylic.

Ntchito Yopanga

Pali njira zinayi zopangira zokutira ufa wa acrylic:

Imodzi ndi njira ya evaporation.
Yachiwiri ndi njira yowumitsira utsi.
Chachitatu ndi njira yonyowa.
Pomaliza, ndizofanana ndi njira yopangira ufa wa epoxy.

Njira yachinayi yopangira imagwiritsidwa ntchito makamaka.
Njirayi ndi iyi:
Kusakaniza → extrusion → kuphwanya → sieving → kuyika