Fumed silica is the superfine micro-nano fine chemical product, which is divided into hydrophilic type
and hydrophobic type in accordance with their different surface treatments. Its appearance is white powder.
Native particle size ranges from 5nm to 40nm, with significant functions of thixotropy, reinforcing, thickening and filling.
Para.
Test Item
Standard
Standardization
Specific Surface Area BET(m2/g)
200±15
Q/(GZ) GBS01-2002
pH Value in 4% dispersion
3.8~4.2
ISO787-9
Loss on Drying 2h@ 105℃(%)
≤1.5
ISO787-2
Loss on Ignition 2h@ 1000℃(%)
≤2.0
ISO3236-1
Fe2O3 (mg/kg)
≤0.003
ISO3236-20
AL2O3 (mg/kg)
≤0.002
ISO3236-20
Chloride (mg/kg)
≤0.0056
ISO3236-20
Bulk Density (g/l)
40~60
ISO787-11
SiO2 Content(%)
≥99.8
ISO3262-20
Application
a>
Its average particle size ranges from 5nm to 40nm, it is with characteristics of thixotropy, reinforcing, thickening and filling.
b.>
It can help to improve greatly tensile resistance, tear resistance and wear- resistance of rubber products so that high tensile rubber can be made;
It can control rheological property and thixotropy of liquid system, adhesive and polymer--used as PAD for anti-settling, thickening and anti-sagging;
It is used as reinforcing agent for HCR, RTV, acidic and neutral silicone rubber.
Quality control
3 times of deacidification→Stable around 400-700 degree→Adjust PH better→Avoid hydroxy reunion and sintering
→Better dispersion (every 2 minutes sample testing /DCS control center)→Maintain the stable quality
Our Services
Company Information
Dalian Fuchang Chemical Co.,Ltd
Dalian Fuchang Chemical Co.,Ltd. is engaged in scientific research,manufacturing and trade. Currently, we have become one of the largest comprehensive chemical groups in Northeast China. The company has cooperated with many domestic reaearch institutions,adopted advanced production technology,combined with perfect management system and d etection means,some models can even completely replace imported products. We also supply goods to many valued company,BASF,HENKEL,FUJIFILM,etc.
Certifications
Our products reached the international first-class level and have passed ISO9001: 2000 International Quality System Certification, SGS Heavy Metal Detection etc
Packaging & Shipping
10kg mutli-layer paper compound material bag, or packaging according to customer's requirement.
♦packaged in multiple layer kraft paper, 10kg per bag stored in aeration-drying.
♦storage areasfor protecting the material from volatilesubstance.
♦should be used within 2 years after production.
FAQ
Q1: Are you manufacturer or trading company?
A : We are producer having our own factory and raw material. Welcome to visit our factory!
Q2: How to get sample?
A :Kindly contact us Free sample are waiting for you!
Q3: How about the packing?
A : Usually we provide the packing as 10 kg / bag . Of course, if you have special requirements on them, we will according to you
Q4: What's your payment terms?
A : We accept all payment TT,LC,DP,Paypal. But for first time, we only do LC or TT.
Q5 : What’s your main products ?
A : we product fumed silica, precipitated silica and matting agent
