HIFULL Hydrophobic Fumed Silica Amorphous Silicon Dioxide Silica Powder For Silicone Rubber

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Product Overview

Description

Hydrophobic Fumed Silica Amorphous Silicon Dioxide Silica Powder For Silicone Rubber

Product Description

Characteristics

HB-630 is a hydrophobic fumed silica which is created by subjecting  hydrophilic grades with BET of 380m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane).

 

 

Properties

High reinforcement and transparency in HTV and LSR

Anti-caking, anti-sagging, thixotrophy in coating and ink

High anti-foam property

Free flow aid and anti-caking aid for powders

 

Physical & Chemical Data 

 

Properties

Unit

Typical Value

Testing Method

Specific Surface Area(BET)

m2/g

380±30

GB/T 20020

PH value in 4% dispersion

 

5.5~8.0

GB/T 20020

Loss on drying(2 hours at 105℃)

wt%

≤0.5

GB/T 20020

Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃)

wt%

≤4.0

GB/T 20020

Silica Content(Based on ignited material)

wt%

≥99.8

GB/T 20020

Tamped Density(Based on material dried at 105℃ for 2 hours)

g/L

40~60

GB/T 20020

Carbon Content (Based on material dried at 105℃ for 2 hours)

wt%

2.5~4.0

GB/T 20020

 

 

 

HB-630 Hydrophobic Fumed Silica Modified With HMDS

 

HB-630 Hydrophobic Fumed Silica Modified With HMDS

 

HB-630 Hydrophobic Fumed Silica Modified With HMDS

Nano Silica Powder Hydrophobic Fumed Silica High BET

Nano Silica Powder Hydrophobic Fumed Silica High BET

HB-630 Hydrophobic Fumed Silica Modified With HMDS

 

HB-630 Hydrophobic Fumed Silica Modified With HMDS 

Applications

Elastomers, HTV silicone rubber and LSR

Coatings and printings ink

Defoamer                                                

Carbon Powder for Printer

 

Company profile

HB-630 Hydrophobic Fumed Silica Modified With HMDS

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Packaging & Shipping

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FAQ
1. Is your company a manufacturer or a trade company?
    A Manufacturer. We’ve been researching and manufacturing fumed silica for 17 years. 
    We are the largest manufacturer of fumed silica with well-developed and stable 
    manufacturing process in China.

2. What’s the main raw material?
    Fumed silica is synthesized by the pyrohydrolysis of silicon tetrachloride or 
    trichloromethylsilane in the flame of hydrogen and oxygen. Our main raw material is 
    silicon tetrachloride, and secondary is trichloromethylsilane.

3.  What’s the main applications ?
    Fumed silica is mainly applied in the field of HTV,RTV, electronic liquid adhesives 
    adhesives, defoaming agent, ink and coating, food and drugs, farm chemical
    animal-feeding, paintings and so on.

4.  What’s the related effects of fumed silica?
     When fumed silica is used as filler or additives, it helps in thickening, reinforcement
     transparency, free-flow, thixotropy, dielectric properties, anti-settling, heat insulation and 
     anti-sagging.

5.  Compared with other manufacturers, What’s the advantages you have?
(1) Quality Stabilization : we are the earliest fumed silica manufactures with independent 
      R&D in China, which guarantees our product stabilization.
(2) Largest Manufacturer : Our annual output of hydrophilic product is 8,000 tons and 
      hydrophobic ones is 1,000 tons.
(3) Strong R&D Team: Besides from our own R&D institute and application& technology 
      department, we’ve build research center with Sichuang University and Wuhan University
      both are top-tier university in China.
(4) Leading Authority: We have already been the influential enterprise in silicon industry in 
      China. Doctor Wang Yuelin, actual controller of Hifull, is the leader of the Sino-Germany  
      project ISO18473-3 << Fumed Silica for Silicon Rubber>> and he is granted the Outstanding
     Contribution Award by the committee.
(5) We have complete grade/model of fumed silica, including 4 hydrophilic grades and 9 
      hydrophobic grades.

6.  What are the grades you have?
(1) Hydrophilic Grade: HL-150, HL-200,HL-300,HL-380.
(2) Hydrophobic Grade: HB-151, HB-152, HB-139, HB-132
      HB-135, HB-612, HB-615,HB-615M,HB-620,HB-630.

7. How long it takes to arrange delivery after placing order?
    We will arrange delivery immediately according to manufacturing schedule and condition.Due 
    to shipping schedule or other factors, please check with sales when placing orders.

8. For the packing details of fumed silica as below : 
     N.W.:10KG/bag; G.W.:10.6KG/bag
     Package: White kraft paper bag,
     One bag dimension: 110cm*55cm*25cm
     For 20 GP it can only contains 1600kg products with 10 pallets;
     For 40 GP it can only contains 3200kg products with 20 pallets ;
     For 40 HQ it can only contains 4000kg products with 20 pallets.

 

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