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U 210 Substituted Urea Accelerator for Epoxy Curing Urea Accelerator Monuron Synonym of Omicure U-21

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period for delivery: Consignment Deadline Days
area: Beijing
Expiry date : Long Effective
last update: 2019-09-06 22:34
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Product details

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
(EEW 182 -192)

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.


For further information about U 210 Monuron,please leave a message and we will get you prompt response

http://www.glorisochem.com/

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