The Toughening
Masterbatches of Calcium Carbonate for the
Toughening Modifications of Polyolefin Plastics
Nanjing
Qiangren Plastics Material Co., Ltd
Introduction of the
Toughening Masterbatches
The
toughening masterbatches are used to toughen
HDPE, copolymer PP and homopolymer PP, which are
prepared from the micron and sub-micron calcium
carbonate fillers with the special
surface-treatment. The mechanic strength of the
composites can be improved significantly and
controlled conveniently by the added content of
the toughening masterbatches. The impact
strength of both the room-temperature and the
low-temperature can be increased in the range of
200%-400% and the flexural modulus can be
increased in the range of 25%-30%. The
toughening masterbatche granules can be mixed
easily with the plastic granules. The
processabilities of the composites, such as the
melt-rheology and the size-stability of the
plastic production, can also be improved
effectely.
Typical
properties of the toughening masterbatches
|
Grade
|
Density
(g/cm3)
|
Toughening
effect on HDPE
Charpy
notched impact strength (kJ/m2)
|
Melt
flow index (g/10min)
|
Color
*
|
Water
content
（%）
|
|
ZR—150A
|
£1.86
|
³12.0
|
0.5
~ 4
|
White
|
£
0.5
|
|
ZR—250A
|
£1.81
|
³16.0
|
0.5
~ 4
|
White
|
£
0.5
|
|
ZR—500A
|
£1.75
|
³20.0
|
0.5
~ 4
|
White
|
£
0.5
|
*
Also providing the coloured masterbatches when
needed.
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