White Carbon Black The Fumed Silica

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Tianjin
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TT OR LC
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-
Supply Capability:
10000MT m.t./month

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Product Description:

                                                        The Fumed Silica  

Product Description:

Fumed Silica
1.Used in tires, tire body, with beam layer and sidewall rubber and rubber products,Shoes Etc.

2.Product Status:White powder

Suggest for Use:

(1) M-150 type is a hydrophilic fumed silica and is a white powder of high purity.Applied in rubber and room temperature vulcanized rubber(TVR) rubber, adhesives and sealants, coatings and paint, etc.As the strengthening filler of the rubber,the rheological and thixotropic fluid control systems, adhesives, polymers, etc.; dustproof, anti-sagging, thickening; improve the free flow of powder and anti-caking characteristics of powder.  

(2) M-200 type is a hydrophilic fumed silica and is a white powder of high purity.Applied in coatings and paints, unsaturated polyester resin, composite resin and gel coats,elastomer, particularly rubber and RTV rubber, adhesives and sealants, printing inks, cable compounds, plant protection, food and cosmetics.As the strengthening filler of the rubber,the rheological and thixotropic fluid control systems, adhesives, polymers, etc.; dustproof, anti-sagging, thickening; improve the free flow of powder and anti-caking characteristics of powder,high transparency etc.

 

(3) M-300 type is a hydrophilic fumed silica and is a white powder of high purity.Applied in paints and coatings, silicon rubber and other elastomers, compounds and unsaturated polyester resins, adhesives and sealants, printing inks, etc.As the strengthening filler of the rubber,the rheological and thixotropic fluid control systems, adhesives, polymers, etc.; dustproof, anti-sagging, thickening; improve the free flow of powder and anti-caking characteristics of powder.It has excellent transparency in term of unsaturated polyester resin.

(4) M-380 type is a hydrophilic fumed silica and is a white powder of high purity. Applied in paints and coatings, silicon rubber and other elastomers, cable material and unsaturated polyester resins, adhesives and sealants, printing inks, etc.It can be used as reinforcing material for elastomers; rheology and thixotropy auxiliaries; dustproof, anti-sagging, thickening; It could enhance the free flow of powder and anti-caking; It has excellent transparency in term of unsaturated polyester resin.

TDS of the Fumed Silica  Standard: GB3778-2003

Product Varieties

M-150

M-200

M-300

M-380

Test Method

Nsa Surface Area(m2/kg)BETm2/g

150±30

200±30

300±30

380±30

GB/T20020-2005

Suspension of pH value (4%)

3.6~4.5

3.6~4.5

3.6~4.5

3.6~4.5

ISO787-9

Loss on drying (dry 2H under the condition of 105 ℃) %

≤1.5

≤1.5

≤1.5

≤1.5

ISO787-2

Loss on ignition (1000 ℃ calcination for 2 hours based on105 ℃ drying after drying for 2 hours) %

≤2.5

≤2.5

≤2.5

≤2.5

ISO3262-1

45um sieve residue %

≤0.05

≤0.05

≤0.05

≤0.05

ISO787-18

Silica Content%(based on calcined products )

≥99.8

≥99.8

≥99.8

≥99.8

ISO3262-20

Apparent density(based on105 ℃ after drying for 2 hours) g/L

25~60

25~60

25~60

25~60

ISO787-11

Carbon content(based on105 ℃ after drying for 2 hours) %

≤0.2

≤0.2

≤0.2

≤0.2

ISO3262-20

Safety:

As a matter of good industrial hygiene, gloves and safety glasses with side shields or better eye protection should be worn when handing Carbon Black ,For more information, refer to the MSDS.

                                       






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Q:Can the catalyst be a reactant in chemistry?
There is also a saying that the catalyst participates in the chemical reaction. In a general chemical reaction, the effect of the catalyst is to reduce the activation energy required for the reaction to occur, essentially to turn a more difficult reaction into two, In the second reaction, the catalyst in the first reaction plays the role of the reactant, and the catalyst in the second reaction plays the role of the product, so that the catalyst is not present before and after the reaction Variety.
Q:Why is the catalyst?
In biochemical reactions, most appear to be positive / inverse reaction combinations, in fact there are differences in peripheral product / energy offerings. In addition to the molecules of interest, there are many other small molecules involved in the reaction, and these small molecules in the forward or reverse reaction in the transformation is not completely mutually negative. Even for the same reaction, since the corresponding substrate may be removed in the subsequent step and the pulling balance occurs, it is also possible that the forward or reverse direction can occur. Decisive factors usually come from the surrounding other enzymes, coenzymes, small molecules concentration.
Q:why is palladium/platinum a good catalyst?
Palladium and platinum can form partial bonds with other molecules. By forming these partial bonds, the bond in the actual molecule gets weaker and weaker and hence, the bond becomes easier to break. Let's say for example a hydrogen molecule. There is a single bond between the 2 hydrogen atoms. Platinum/palladium will form partial bonds with the 2 hydrogen atoms. By doing so, the single bond BETWEEN THE 2 HYDROGEN ATOMS gets weaker and weaker. Hence, a smaller amount of energy is needed to break the bond between the 2 hydrogen atoms (the hydrogen molecule). As the amount of energy needed to overcome the bond between the 2 hydrogen atoms gets smaller, we say the activation energy for the reaction has been reduced. Hence, a greater amount of bonds in hydrogen molecules can be broken in a smaller time, and therefore, we say palladium/platinum has catalysed the reaction.
Q:Describe the role of a catalyst..........?
a catalyst lowers the activation energy of a reaction. By lowering the activation energy, the internal kinetic energy the reactants become sufficient for the reaction to occur on a much larger scale and thus appear faster. Without the catalyst, you would depend on the statistical probabilities of small numbers of reactant particles having enough internal kinetic energy to overcome the activation barrier. a substrate is merely the substance in the reaction being catalyzed
Q:The chemical equation of heating reaction of benzene and hydrogen under the action of catalyst
C6H6 benzene + 3H2 - (arrow) C6H12 cyclohexane (Ni catalytic heating)
Q:What is the difference between biological and chemical catalysts?
Biological catalysis involves an enzyme usually working in conjunction with a co-enzyme. These enzyme/co-enzyme systems are highly specific and are usually only effective for one reaction. Catalysis of non biological reactions is usually much more general and any one catalyst will be effective in many reactions.
Q:What is the catalyst for high chemistry?
Concentrated sulfuric acid, NI, barium bromide, copper or silver
Q:Does a catalyst have an effect on the Gibbs free energy of a reaction?
A catalyst can change the activation energy not the Gibbs energy. The Gibbs energy is the energy difference between the initial state and final state. A catalyst cannot change that. Imagine you are driving from school to home. How you drive do not change the height difference between the school and your home. However, a catalyst can change your path which can change the routine you drive from school to home. So if there is a hill in between your school and you home, you have the choice to drive through it or drive around. Here is a picture: upload.wikimedia.org/wikipedia/co... A catalyst can change the height of the barrier, but cannot alter the initial or final state.
Q:The role and significance of chemical catalysts
To speed up or slow down the chemical reaction is to make the chemical reaction more direct, simple and straightforward to adopt
Q:Question about catalysts and their function.?
Catalysts, as enzymes, only change the activation energy (the energy the compound needs to gain to transform into products), they don't change the Gibbs energy values of reactants nor products. Therefore, if the delta G of the reaction is positive, it'll still need free energy to complete. They make a reaction complete faster than in normal conditions, but don't change the actual possibility for that reaction to happen. In the human body, a lot of reactions of catabolism have a positive G value and these reactions needs to get energy from other coupled reactions that have a negative value, so the total value is still negative. Many of them use hydrolysis of ATP to provide that energy, as its hydrolysis is about -30 kJ/mol in physiological conditions. I don't know what class you're in to ask this question, so can't really know if this answer is too simple or complicated for u... sorry in advance! Joël

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