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| ¡¡Introduction
of Brominated Epoxy Resin |
¡¡Brominated Epoxy Resin (BE OR BEO) has
been widely applied in electron, automobile, office equipment,
household electric appliances, ect. for its good electric
quality and its physical and mechanical properties. Furthermore,
with its excellent melting flow rate, high efficiency
of inflaming retarding, good heat and light stability,
as well as the excellent mechanical properties, thus£¬BE
is widely used as flame retardant with PBT, PET, ABS,
Nylon 66, thermosplastic polyurethane and PC/ABS plastic
alloy.
¡¡With high content of bromine, Brominated Epoxy Resin
is especially suitable for flame retardant to of the pressing
board in paper base and cloth base. The serious products
of Brominated Epoxy Resin products can meet the inflaming
retarding demands of different materials such as pouring
materials, maceration materials, coating and adhensine
agent and so on.
¡¡According to the structures of the terminal group, Brominated
Epoxy Resin can be classified into two types: EP and EC.
EP type posses excellent climate endurance, while EC type
posses outstanding speciabilities of heat and light stability,
good fluidity, good HDT and drawing of patterns.
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¡¡Chemical Name |
En glish Name:Brominated Epoxy Oligomers
or Brominated Epoxy Resin
Type EC Structural Formula:CAS NO.£º68928-70-1
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| Type EC Structural Formula:CAS NO.£º139638-58-7
135229-48-0 |
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Properties: not dissolving in water, alcohol,
dimethylbenzene, butanone ect. but dissolving in DMF and
ethylene glycol dimethyl ether ect.
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¡¡Typical Properties |
¡ñHigh heat stability and anti-degrodation
¡ñOutstanding processing quality
¡ñNo blooming
¡ñHigh UV stability
¡ñNo corrosion quality
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¡¡Quality Index of the Typical Products |
KBE-2010K(polymer)
Appearance: white powder
Bromine content : 52%
Molecular weight: 10000
Specific gravity: 1.80
Melting temperature range:175-185¡æ(M.P)
Color value: (10%dioxane, APHA) 100
TGA %wt loss:
1%£¨wt£© 330¡æ 5%£¨wt£© 340¡æ 10%£¨wt£©352¡æ
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KBE-2025 (polymer)
Appearance: white to yellow granule
Bromine content :53%
Molecular weight: 25000
Specific gravity: 1.80
Melting temperature range: 175-185¡æ(M.P)
Color vaule: (10% dioxane. APHA) 100
TGA %wt loss:1%£¨wt£© 337¡æ
5%£¨wt£© 344¡æ 10%£¨wt£©351¡æ
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KBE-3010K (polymer)
Appearance: white to yellow granule
Bromine content :53%
Molecular weight: 10000
Specific gravity: 1.90
Melting temperature range: 175-190¡æ(M.P)
Color vaule: (10% dioxane. APHA) 100
TGA %wt loss:1%£¨wt£© 338¡æ
5%£¨wt£© 340¡æ 10%£¨wt£©354¡æ |
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¡¡Application Features of Brominated Epoxy
Resin of Type |
| ¡¡Brominated Epoxy Resin as flaming retardant
in plastics possess many merits such as low toxicity,enviroment-friendly
and so on. It overcomes the shortcomings of the traditional
flaming retardant such as low fluidity,bed compatibility
, and producing brominated dihydro-leucolin while burning.
Therefore, it meets the requirements of flaming retardant
applied to the electron and electric appliances and automobiles
etc. electronic Brominated Epoxy Resin is mainly used
in manufacturing FR-4 steel boards and multi-layers electrical
insulating boards in order to improve the function of
preventing from ultraviolet rays and strengthening the
fluorescence. The electrical Brominated Epoxy Resin with
high purity is mainly used in the resin system with high
content of Bromine and in the electric field with high
qualities and high reliabilities. |
Application Properties of the Products |
¡¡KBE Brominated Epoxy Resin developed by
Kaimei Chemical Science and Technology (Nantong) Co. Ltd.
also possess the following advantages:
1.Non-blooming and Good Compatibility
¡¡Although the low molecule bromide compounds such as TBBA,
DBDPO possess good property of inflaming retarding, small
amount of Bromine oozing out while heating causes corrosion
to the mold as well as the metal contact points of the
electrical parts. However, The flaming retardant of KBE
Brominated Epoxy Resin have no such defects.
KBE Brominated Epoxy Resin possess excellent compatibility,
with a lot of plastics such as PS, PBT, ABS Resin, PC/ABS,
PBT/ABS alloy, ect.
2. Excellent Heat Stability
¡¡The processing temperature of engineering plastics is
above 230 ¡æ, higher than that of the all-purpose plastics,
while the heat stability by using the bromide with low
molecule is worse than that by using KBE Brominated Epoxy
Resin. The decomposition temperature of KBE Brominated
Epoxy Resin is above 300 ¡æ. Furthermore, the decomposition
temperature increases as the molecular weight increases.
3.The Least Change of Chromatism (¡÷H) (See diagram 1)
¡¡When various flaming retardants are added into the PBT
with 30% glass fiber injected to samples at the temperature
of 270¡æ for 20 min, the Chromatism has the least change
by using Brominated Epoxy Resin with high molecular weight
as the flaming retardants.
4. The effect on the physical properties of polymer
¢Å The Relation of Thermalstability with Molecular Weight
¡¡As the molecular weight of KBE Brominated Epoxy Resin
increases,thermostabile of the KBE Brominated Epoxy Resin,
the temperature of modified polymers increases too.
¢Æ The Relation of Mechanical Strength with Molecular Weight
¡¡As the molecular weight of KBE Brominated Epoxy Resin
increases, the rate of water absorption is decreasing,
and the temperature of heat deformation is becoming better.
It also can improve the property of the shocking intensity
of PC/ABS.
¢Ç Excellent weatherability (See Diagram 2)
¡¡Because of the high demand of color and luster protection
on the appearance of the instrument and equipment, the
change of the plastics Chromatism filled flaming retardants
is great important . As diagram 2 shows, various flaming
retardants are added in the samples of ABS resin, then
the samples were put outdoor and compared them with the
original sample to see the extent of being yellowish.
The diagram shows that DBDPO and TBBA is more liable to
become yellow than Brominated Epoxy Resin. Brominated
Epoxy Resin of KBE type endures the climate chang well.
5. Excellent Mixture Capability with Other Resins
¡¡In order to make resin have effective inflaming retardanting
capability, the content of Bromine must reach the range
from 13% to 15%. The content of Bromine in KBE Brominated
Epoxy Resin can reach above 53%, therefore, KBE Brominated
Epoxy Resin can mix with many other resins. Thus, effective
inflaming retardanting can be maintained and better flexibility
or other properties can be obtained as well.
6. KBE Brominated Epoxy Resin is better than other flaming
retatdants in corrosion, oozing of Bromine, heat endurance
and flow rate of the melting objects.
7. Improving the transference quality of copper endurance
(especially for printing circuit board)
8.No toxicity
¡¡KBE Brominated Epoxy Resin is polymer. Almost no poisonous
substance will be produced whether in proceies of pelleting
and burning. As for the commonly used bromide with low
molecular weight, such as DBDPO and TBBA, their poisonous
elements cannot reach the specification. |
| ¡¡ All-purpose flaming retardants are generally
mixing or filling type, i.e. the components of flaming
retardants are dispersed in the plastics in physical state.
When the recruitment increases, the quality of products
decreases. However, KBE Brominated Epoxy Resin belongs
to reaction type. The flaming retardants in it can finally
combine with the molecular chain in other resins, therefore,
its inflaming retardanting is stable and not disappear
easily. |
KBE and KMB Brominated Epoxy Resin as flaming retardants can not only replace common epoxy resins and but also possess excellent property of inflaming retarding .so it is widely applied in many fields.
1. Series of styrene Resins (ABS, PS, PC/ABS)
2. Engineering Plastics (PET, PBT, PA66)
3. Thermosetting Resins (Phenolic Resins, Unsaturated Polyesters)
4. Electron and electric field (printing circuit board, insulation powder, coating and electric layer board, etc.)
5. Semiconductor Sealing Material
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The formulation Recommended¡¡ |
The following formulation are recommended
for plastics flame retardants
component |
KBE-2040K
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KBE-3014K |
KBE-2016
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KBE-3020 |
KBE-2015K |
KBE-2025K |
| PBT |
49.8 |
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55 |
55 |
ABS
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73 |
73 |
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Glass
fiber
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30 |
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Flame
retardant
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12 |
16 |
18 |
18 |
13.6 |
13.6 |
| Antimony
trioxide |
7.5 |
5 |
6 |
6 |
6 |
6 |
Flammability
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0.8mm
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V-0 |
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V-0 |
V-0 |
1.6mm
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V-0 |
V-0 |
V-0 |
V-0 |
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| Melting
Index |
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| g/10min,200¡æ-5Kg |
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9(9.4) |
25(10) |
25(10) |
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g/10min,250¡æ-2.16Kg
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20 |
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24 |
22 |
Unnotched
impact strength
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65 |
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| V Notched
impact strength |
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19.0(38.5) |
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57 |
54 |
| Tensile
strength |
110 |
27.4(30.9) |
47 |
46 |
102 |
105 |
Elongation
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2 |
35(55) |
8.5 |
9.9 |
2.1 |
2.1 |
Flexural
strength
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1.2¡Á104 |
2.16¡Á103 |
2.4¡Á103 |
2.45¡Á103 |
8.6¡Á103 |
8.7¡Á103 |
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¡¡Packing |
¡¡Solid Brominated Epoxy Resin adopts the
paper and plastics compound package. The net weight for
each package is 25 kg. We can also pack our products according
to the needs of the clients.
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¡¡Storage and Transportationg |
| ¡¡Brominated Epoxy Resin is steady at
the normal circumstance. The products should be put in
dry room with closed container or tied pocket. Solid Brominated
Epoxy Resin can be stored and transported as products
without any poison and danger. Liquid Brominated Epoxy
Resin should avoid direct sunlight, be far from heat sources,
insulate from fire and store and transport as hazardous
materials. |
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¡¡Attention point While Using |
| ¡¡Avoid the contact with skin and eyes. Not
inhaling the powder and solution. Wear the work clothes,
gloves, blinkers and mask. |
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