U 415 Urea Accelerator for Epoxy Curing Methylene Bis (Phenyl Dimethyl Urea) Synonym of Omicure U 41
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Negotiable
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- Total supply:
- Delivery term:
The date of payment from buyers deliver within days
- seat:
Beijing
- Validity to:
Long-term effective
- Last update:
2019-04-27 00:10
- Browse the number:
304
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Beijing
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Product details
IDENTIFICATION
Chemical name: N,N''-(methylenedi-4,1-phenylene)bis[N',N'-dimethyl urea]
Synonym: 4,4'-Methylene Bis (Phenyl Dimethyl Urea); MDI URON; Omicure U-415; Omicure U-52; Technicure MDU-11M
CAS Number: 10097-09-3
Structural formula:
A substituted urea, as latent accelerator for Dicyandiamide in epoxy resin formulations
SPECIFICATION
Appearance |
Off-white powder |
Assay |
Min. 98.0% |
Melting point |
Min . 190℃ |
Particle size 95.0% |
Max. 10 μm |
Volatiles |
Max. 1.0% |
APPLICATION
U 415 well combined with DICY can reduce the time and temperature of epoxy curing by use level at 1-3 phr.
★ structural adhesives e.g. for automobiles ,plane ,ship industries
★ Powder coatings
★ composites based Prepregs
ADVANTAGES
U 415 which contents two isocyanate groups performs a best balance among reactivity, long shelf life and retention of the properties
Moderate Tg temperature
U 415 is suggested to be added < 3 phr Curing can be finalized within 80 minutes at 100°C and less than 5 minutes at 150°C.
FORMULATION CASES
Formulation |
1 |
2 |
U 415 |
1.0 phr |
3.0 phr |
Hydrophobic fumed silica |
3 phr |
3 phr |
Dicyandiamide Micronized |
8 phr |
8 phr |
Liquid bisphenol-A-epoxy resin |
100 phr |
100 phr |
DSC –Onset [°C] |
144 |
140 |
DSC –Tg [°C] |
130 |
128 |
Gel time 140°C [min] |
10 |
6 |
Shelf life (double viscosity) at 23°C [days] |
300 |
150 |
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 12 months.
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http://www.glorisochem.com/
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