Madzi a Polyurethane utoto
Trapezium yapadera yochokera kunja yamadzi, National Chemical Science, Deionized Water, madzi owonjezera ndi zoteteza zachilengedwe ndi zinthu zina, ilibe benzene, banja, benzene yachiwiri ndi zina zosungunulira organic. kugwiritsa ntchito madzi opangidwa ndi aliphatic polyurethane resin monga filimu yopanga filimu, HDI monga machiritso, kuwonjezera zodzaza zachilengedwe ndi zothandizira. Filimu yathunthu, yonyezimira kwambiri, mtundu wowala. Kumamatira kwabwino, kuuma kwakukulu, kukana kwanyengo kwabwino.
Munda wofunsira
Zoyenera pazifukwa zapamwamba zapamtunda, zofunikira zotsutsana ndi nyengo za kupaka utoto wapamwamba. Amagwiritsidwa ntchito kwambiri pakukongoletsa pamwamba pazigawo zachitsulo monga mbiya yamphepo yamphepo, zida zamakina, makina omanga, chitoliro chamafuta a petrochemical, etc. Ili ndi kukana kwanyengo kwakunja komanso kukana dzimbiri.
Chithandizo chapamwamba
1. Pamwamba payenera kukhala woyera ndi wouma, ndipo chithandizo chapamwamba cha gawo lapansi chiyenera kukwaniritsa zofunikira.
2. Zida zomwe zimagwiritsidwa ntchito pomanga ziyenera kukhala zouma komanso zaukhondo. 3.
3. ndizoletsedwa kukhudzana ndi asidi ndi alkali panthawi yokonza utoto ndi kupaka.
4. nthawi yojambula iyenera kuyendetsedwa mosamalitsa, pamene kutentha ndi 25'C, nthawi yojambula sikhala yosachepera maola 12.
5. Simungathe kujambula wandiweyani, filimuyo sichitha kupitilira 40μm kapena kuwira.
6. Kumanga ndi kuyanika ndi kuchiritsa pa chinyezi wachibale si wamkulu kuposa 75%, kutentha sangakhale zosakwana 0 ℃ C, apo ayi filimu sangathe kuchiritsidwa kwathunthu chikoka.
Nthawi yotumiza: Apr-01-2024