Silica

Precipitated Silica(White Carbon Black)– Reinforcing Agent for Tire Tread & Industrial Rubber Goods

Product Name: Silica/ White Carbon Black

Product Details:

Chemical Formula:SiO₂.nH₂O
Appearance: White particle、White powder
Specification: Common, High- Reinforcing, Hyperfine
Standard: HG/T3061~3073—1999
Products Description: Widely used in making Synthetic sole or rubber shoe, rubber conveyer, belt, rubber roller, and damp unit rubber product.
Applications and Characteristics：This material processes well with rubber. It also absorbs and disperses easily when mixed. As a rubber reinforcing filler, it has good mechanical energy and can improve the property of the rubber product in elongation and abrasion resistance. When used with carbon black, it can ameliorate the processing property, as well as the static and dynamic property. With the dry powder fire extinguisher, it presents a fine adsorption capacity and flowability, functioning well in preventing caking.
Package: PP outer bag with film and PTFE inner bag,net weight 15kg 20kg, or packing according to customer.

Product parameters

Product type		ZH199	ZH599	ZH799
Silica content	%	≥90	≥90	≥90
Matter volatile at	（105℃.2h）%	4～7	4～7	4～8
Loss on ignition	（1000℃.2h）%	≤7	≤7	≤7
PH value of aqueous suspension	-0.05	6~7	6~7.5	6~8
Specific surface area	㎡/g	160～200	150～180	220～240
DBP Absorb the value	ml/g	2.0~3.5	2.0~3.5	2.0~3.5
Screen floating	(45μm)%	≤0.5	≤0.5	≤0.5
Apparent density after tamping	g/ml	≥0.22	≥ 0.20	≥ 0.17