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Flame Retardants
Newly halogen-free flame retardant
Flame Retardant
Flame Retardant Master
Batch
Specialized Flame
Retardant
(HT-207) Zinc Borate

 

ZINC BORATE

2ZnO·3B2O3·3.5H2O/4ZnO·B2O3·H2O/2ZnO·3B2O3

(HT-207)

一、Description
Zinc Borate is widely used as a kind of environment-friendly additive halogen-free flame retardant in various of polymers, the general chemical formula is xZnO.yB2O3.zH2O, due to the ratio of Zinc and Boron, Zinc borate’s dehydration temperature is great different so as to suitable for different applications in PVC, Polyolefins, polyurethanes, thermoset resins, thermoplastic, elastomers and rubbers.
 
二、Physical and chemical properties

 

Item
Unit
Index
ZB-223.5
ZB-237
ZB-23
B2O3
%
45.0~48.0
39.5~42.5
52.0~56.0
ZnO
%
36.0~39.0
30.5~33.5
42.0~44.0
Moisture
%
≤0.8
≤1.0
≤0.5
Loss on ignition
%
13.5~15.5
24.0~26.5
≤ 1.5
(400℃,2h)
Whiteness
%
≥94.0
≥94.0
≥92.0
Average particle size
µm
≤7
≤7
≤8
 
三、Application and Packaging
Applications:                                Packaging
●Plastics and rubber                     ●Compound paper-plastic bag
●Coating and adhesives               ●Net weight 25kg/bag, 20kg/bag
 
 
 
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