U 210 Substituted Urea Accelerator for Epoxy Curing Urea Accelerator Monuron Synonym of Omicure U-21
Delivery term:The date of payment from buyers deliver within days-
Price:
Negotiable
- minimum:
- Total supply:
-
Delivery term:
The date of payment from buyers deliver within days
-
seat:
Beijing
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Validity to:
Long-term effective
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Last update:
2019-08-20 05:58
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Browse the number:
471
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- Contactaixin:
Contactaixin:
seogoogle(Mr.)
- Email: telephone: phone:
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Area:
Beijing
Address:Rm18, 27/F, Ho King Comm Ctr, 2-16 Fayuen St, Mongkok Kowloon, Hong Kong.
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IDENTIFICATION
Chemical name: 3-(4-chlorophenyl)-1,1-dimethyl urea
Synonym : N-(4-Chlorophenyl) - N, N-Dimethyl Urea ; Monuron ; Omicure U-210
CAS Number: 150-68-5
Structural formula:
An aromatic substituted urea, used as latent accelerator in Dicyandiamide /epoxy resin curing systems
SPECIFICATION
Appearance |
Off-white powder |
Assay |
Min. 98.0% |
Melting point |
Min . 171℃ |
Particle size 98.0% |
Max. 10 μm |
Volatiles |
Max. 1.0% |
APPLICATION
U 210 Monuron accelerator similar as UR200 ,well combined with DICY by reducing the time and required temperature of epoxy curing:
★ structural adhesives e.g. conductive resin
★ Powder coatings
★ Prepregs of epoxy composites
★ Encapsulation compounds for electronic industry
★ Reinforcements e.g. carbon fiber
ADVANTAGES
U 210 Monuron with a similar function with UR200 brings a moderate curing speed . the outstanding achievement is showing a longer latency -shelf life can be up to min. 5 months for finished systems than other UR accelerators.
U 210 Monuron is suggested to be added at the percent < 5 phr Curing can be finalized within 70 minutes at 100°C and less than 20 minutes at 140°C.
FORMULATION CASES
Formulation |
1 |
2 |
3 |
U 210 Monuron |
1.0 phr |
3.0 phr |
5.0phr |
Hydrophobic fumed silica |
3 phr |
3 phr |
3 phr |
Dicyandiamide Micronized |
8 phr |
8 phr |
8 phr |
Liquid bisphenol-A-epoxy resin |
100 phr |
100 phr |
100 phr |
DSC –Onset [°C] |
148 |
138 |
136 |
DSC –Tg [°C] |
121 |
110 |
109 |
Gel time 140°C [min] |
15 |
8 |
7 |
Shelf life (double viscosity) at 23°C [weeks] |
24 |
16 |
15 |
Result values may be varied based on different used resin matrix.
Fillers and other additives to formulation can also change properties.
Packing and storage
--10 or 15kg per Box,carton,kraft bags, FIBC or customized
--Keep sealed in original package ,under a cool and dry condition ,avoid humidity. recommended storage period no exceeds 18 months.
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