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Acrylic impact modifier ZB-21 ZB-50

Brief introduction
ZB-21 ZB-50 is PVC impact modifier made from acrylate monomer by emulsion polymerization. It has typical core-shell structure. The core is moderate cross-linked butyl acrylate (BA), the shell is methyl methacrylate which have excellent compatibility with PVC resin. The shell can resist and disperse the energy which is put on PVC rigid product by impact.  It has excellent properties of impact and low temperature resistance.
It is very suitable for outdoor rigid and semi-rigid PVC product and those products which have higher request on impact and weatherability.
It is amorphous white flowing fine granula.  It can reduce the dusty pollution during production due to its uniform particle size.
It can be dissolved in Ketone and chlorinated hydrocarbon, but not in water and alcohol.

Quality specification

Item

ZB-21

ZB-50

Bulk density, g/cm3

0.35

0.35

Particle size(30 mesh passed) ≥%

98

98

Volatile matter,%≤

1.5

1.5

Impurity particle number(10×10)cm2≤

20

20

Izod impact strength, KJ/m2

23℃

≥15.0

≥17.0

-10℃

≥9.0

≥10.0

Property and application

Item ZB-21 ZB-50
Main Application To be used in window, window profile, pipe, fitting, board etc To be used in window, window profile, pipe, fitting, board etc
Typical Characteristic Good property of fusion , fluidity and impact resistance Excellent comprehensive property and impact resistance
Improve Fusion
●●●●
●●●●
Enhance Melt Strength
●●●
●●●
Melt viscosity
●●●
●●●
Weatherability
●●●●●
●●●●
Impact Resistance
●●●●
●●●●●

Corresponding grade

Company

Grade

Huaxing

ZB-21

ZB-50

Kaneka

FM-22 FM-21

FM-50

Rohm&Haas

KM-355 KM-334

 

Atofina

D-300 D-200

D-320

LG Chem

IM-808A

 

Mit.Rayon

W-450A W-300A

 

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