Alkaline bio-based silica

Overview:

Key words:

Rice Husk Silica

Bio-based silica

Classification:

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Product Details

【Product Introduction】

The product is made from renewable resources such as rice husk and straw using the carbon dioxide acidification process to produce the AK series of Alkaline bio-based silica (also known as bio-based white carbon black / rice husk silica / rice husk white carbon black). It is a white, non-toxic, amorphous micro pearl substance. The product is an important inorganic silicon compound with excellent properties such as porosity, easy dispersion, light weight, good chemical stability, high temperature resistance, non-combustion, and good electrical insulation.

【Application scope】

(1) The product is alkaline bio-based silica with a pH of 8.5-10.5. It can promote rubber vulcanization and shorten the vulcanization time, and even does not require modification with modifiers such as silane and PEG.

(2) Since this alkaline bio-based silica contains hydroxyl groups on the surface of the product, adding this product can improve the mechanical strength of the product, reduce compression permanent deformation, and have high resilience. It can be used in large quantities in light-colored rubber products, especially fluororubber products.

(3) The alkaline bio-based silica is suitable for high-strength and light-colored NBR oil seal O-rings, hoses, low-hardness printing rubber rollers, and high-strength, low-compression deformation, and excellent processability HNBR\ACM\AEM and other rubbers.

【Technical Indicators】

Item	Unit	EVOSIL®AK2165
Physical Form		White Microbeads
BET	m²/g	165±20
CTAB	m²/g	155±20
DBP	cm³·/g	2.0-3.5
Silica（dry basis）	%	≥95
Drying loss	%	4.0～8.0
Ignition loss (dry basis)	%	≤7.0
pH（10% aq）	/	8~11
Cu	mg/kg	≤10
Mn	mg/kg	≤40
Fe	mg/kg	≤500