Hydrophobic Fumed Silica Iota Hb4132 Used as Defoamer and Toner

• Raw Material: Silica
• Material: Silicone Rubber
• Appearance: Powder
• Model NO.: IOTA HB4132
• Form: Powdered Rubber
• Color: White
• pH Value in 4% Dispersion: 7.0~8.5
• Silica Content(Based on Ignited Material: ≥99.8
• Carbon Content (Based on Material Dried: 2.5~4.0
• Transport Package: Kraft Paper Bag
• Specification: 10KG/Bag
• Trademark: IOTA
• Origin: Cn
• HS Code: 3910000000
• Production Capacity: 500mt/Month

Product Description

 

Product description

HB4132 is hydrophobic fumed silica which is produced by HL4200 after chemical post-treatment with HMDS (Hexamethyldisilazane).

 

Specification	IOTA HB4132
Specific sunface area(BET), m^2/g	160
pH value in 4% dispersion	7.0~8.5
Loss on drying(2 hours at 105ºC), %	≤0.5
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), %	≤4.0
Sieve Residue(45μm), mg/kg	-
Silica Content(Based on ignited material), %	≥99.8
Tamped Density(Based on material dried at 105ºC for 2 hours), g/dm²	40~60
Carbon Content (Based on material dried at 105ºC for 2 hours), %	2.5~4.0

 

Applications 

Silicone rubber

Defoamer

Toner                       

Adhesives and Sealants

 

Properties

Low thickening effect and excellent processability enable high loading in polymers

Excellent reinforcing properties in silicone rubber especially at high filler loading levels (RTV-1, RTV-2, LSR)

Good transparency performance

Free flow aid and anti-caking aid for powders

 

Package & Loading