Main technical indicators of nano-silica

Mar 09, 2017

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Members of nano-silicon dioxide solution have how many? Nano-silicon dioxide with small particle size, micro-Condo, large specific surface area, high surface hydroxyl content, UV, visible light and infra-red reflection ability and so on. Especially with the perfection of the product surface treatment technology, Nano-particle-free reunion measurably less, good compatibility with organic polymer materials, greatly broadened the product applications.

Nano-silicon dioxide technical specifications:

Average particle size of bulk density purity hydroxyl content of ultraviolet reflectivity

Model (nm) (g/cm3) (%) (%) (%)

VK-SP50 microporous particles 50 ± 5 <0.12 >99.5 >45 >85

VK-SP30 microporous particles 30 ± 5 <0.12 >99.5 >45 >85

VK-SP15 microporous particles 15 ± 5 <0.12 >99.5 >45 >85

Name:	Chemical Composition	Melting Range	Appearance/ Supply Form	Applications
RF-5	Blend of fatty acid ester, Zn soaps and fillers	85-105	whitish pastilles	Acting as one excellent dispersion promoter for high loading silica compounds. it shows excellent behavior in silica/carbon black compounds. RF-5 improves filler dispersion and reduces mixing and Mooney viscosities. RF-5 increases scorch safety and reduced energy consumption in extrusion. Used in tire, molded and extruded articles of all types, hard rubber.
PETS	pentaerythrityltetrastearate	55-65	Whitish flakes or powders	PETS it can effectively prevent the sticking of the compounds to the rubber rolls, and has positive effect regarding the flow and demoulding properties with the injection and mould pressing process, suitable for ACM, H-NBR, EVA, CSM, ECO/CO, IIR/CIIR/BIIR, CR, etc.
RPA	combination of zinc salts of higher molecular fatty acids	97 - 105 °C	light brown pastilles	Excellent peptizing effect in NR and IR upwards of 60°C, can decrease the viscosity of compounds based on NR resulting in an easier processing, which leads to higher extrusion rates, better dimensional stability and a stable die swell. RPA provides a good dispersion of the fillers and rubber chemicals in the compound. Used in tire, molded and extruded articles of all types, hard rubber.
LRPA	Blend of zinc salts of higher molecular, mostly unsaturated fatty acids	75-90	Light brown pastilles	Low melting-point grade processing promoter, more effective in NR and IR rubber at a mill temperature as low as 60 °C. Suitable for low temperature continuous mixing and open mill mixing for tire, molded and extruded articles of all types, hard rubber.

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Main technical indicators of nano-silica

Product Details: