Silica 955GR is a high-performance precipitated white carbon black. It is commonly used as a reinforcing filler for rubber and is widely employed. Compared to conventional fillers, it emphasizes high dispersion, high reinforcing properties, and low oil absorption characteristics. It is made from silicate as the raw material, through acidification precipitation, refining and drying, and air flow pulverization. It is a white, fluffy powder with low impurity content, uniform particle size, and can well adapt to tire, shoe material, seals, silicone products, etc., effectively enhancing the rubber's wear resistance, tear resistance, and anti-slip properties.
Product parameters
|
Apperance |
Granular |
|
Specific Surface Area(N2,BET)(m2/g) |
150-180 |
|
Oil Absorption (DBP)(10-5m3/kg) |
200-250 |
|
SiO2Content(drybasis)(%) |
95-98 |
|
Moisture Loss(105°C,2 hour) (%) |
5.0-8.0 |
|
Ignition Loss(1000°C)(%) |
≤7.0 |
|
pH value(10% aq) |
5.5-7.0 |
|
Soluble salts(%) |
≤2.5 |
|
Fe Content(mg/kg) |
≤500 |
|
Mn Content(mg/kg) |
≤40 |
|
Cu Content(mg/kg) |
≤10 |
|
Residue(45um Sieve) (%) |
≤0.5 |
|
Applications |
Rubber Industry |
|
Packing |
25kgs/bag, 450 kgs/bag |
Product advantages
The reinforcing performance is outstanding, which can significantly enhance the hardness, tensile strength and wear resistance of rubber, and reduce the rolling resistance of tires. The powder is fine and uniform, with good dispersion during mixing, and is not prone to agglomeration or caking. The processing is smooth. It has strong compatibility with silane coupling agents, which can fully exert the effect of fillers. There are few impurities and the pH is moderate, which will not affect the vulcanization stability of the rubber compound. The anti-aging effect is good, the finished product has better weather resistance, and at the same time, it can improve the surface gloss of the product, and is suitable for environmentally friendly rubber formulations.
Services
It is packaged in 20kg inner PE lined kraft paper bags, suitable for small batch samples; the supply is stable and quick delivery is possible; a test report is provided, and assistance is offered in filling ratio and mixing process adjustment; after-sales service can answer practical questions such as addition amount and dispersion method.
FAQ
Q: What rubber products is 955GR mainly used for?
A: Green tires, rubber shoe soles, rubber rollers, sealing components, silicone accessories, etc.
Q: What is the difference from ordinary white carbon black?
A: It has a reasonable specific surface area, balanced reinforcement, moderate oil absorption, better processing fluidity, and wider adaptability.
Q: What should be noted when storing?
A: Store it sealed in a dry and ventilated place, prevent moisture and caking, and keep away from dust pollution.
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