1.EPT Introduction
Urea formaldehyde (UF) is a expense-efficient thermosetting resin that is commonly used in the wooden item industry. In the laboratory,urea formaldehyde resins are ready by using urea with formaldehyde in an alkaline or neutral medium to make dimethylol urea,which then undergoes polycondensation, a chemical method that generate a polymer,when heated in an acidic medium.
one)Application
Urea formaldehyde resin cure easily and are scratch resistant.They are mostly employed in adhesives,finishes,particle board,MDF and molded objects.UF and relevant amino resins are regarded a course of thermosetting resins of which urea-formaldehyde resins make up eighty% EPTly.
2)Principal Technical Specification
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Commodity: Urea formaldehyde resin |
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item Specification Consequence |
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Physical appearance |
White powder |
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Viscosity twenty five ordmC |
3000–4500CPS |
3500CPS |
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Reliable Content material |
ge95% |
ninety eight% |
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Formaldehyde emission |
le3. |
two.5 |
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Risky material |
lt2 |
1.nine |
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Humidity content material |
le2 |
one.8 |
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PH |
7.five-eight. |
7.six |
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Specific gravity twenty five ordmC |
one.220g/cmthree |
1.one |
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mesh measurement |
eighty-120mesh |
a hundred |
three)H2o Solution
Viscosity: Powder: h2o=1:one(kg) 80-200mPa.s (twenty five degC ,77 degF) PH Worth: 7.5-8.5 Active Time period: twenty degC (68 degF) ge 10days
four)Urea Formaldehyde Resin PowEPTUsing and Sage Approach
1. Pretreatment for gluing wood substance:
A) Humidity content material attain to ten two%
B) Eliminate Knots, Cracks, oil stain and resin and so on.
C) Wooden surface area need to be flat and sleek. (Thickness Tolerance lt0.1mm)
five)Storage
1. PowEPTurea formaldehyde resin must be kept unEPTseal to stay away from direct sunligEPT and to prevent get in touch with with moisture
two. Shelf existence: 20 degC (sixty eight degF) 12 months and 30 degC (88 degF) six months Place temperature, dry and amazing spot, sealed
two.Production Line
Make contact with us:
Zoe lv
HangZhou HangZhou International trade Co.,LTD
Net:
Insert:Great wall Street,96#,TiXiHu (West Lake) Dis.Hu (West Lake) Dis. Developing,EPTian,ZheEPTng , China
