Nano silicon dioxide powder / Silica nanopowder / SiO2 Nanoparticles

Product Detail

Product Description

Brief introduction

Product name: Silicon oxide SiO2 Purity: 99%-99.999% Particle size: 20-30nm, 50nm, 100nm, 45um, 100un, 200um, etc Type: hydrophilic, hydrophobic Color: white powder Bulk Density: <0.10 g/cm3 True Density: 2.4 g/cm3 Ultraviolet Reflectivity:>75%.

Features:

Nano-silica particles according to their structure are divided into two types: P-type (Porous particles ) and S-type (Spherical particles). P-type nano-silica surface contains a number of nano-porous with the pore rate of 0.611ml /g; therefore, P-type has much larger SSA comparing to S-type (See US3440). US3436 is S-type and its SSA is ~170-200m2/g. Further more, P-type ultraviolet reflectivity is >85% , S-type: >75%.

Specificaiton

Product	Hydrophilic Silicon dioxide
CAS No:	7631-86-9
Quality	99.9%min	Quantity:	10000.00kg
Batch no.	20072506	Size	20-30nm
Date of manufacturing:	July 25, 2020	Date of test:	July 25, 2020
Test Item	Standard	Results
Appearance	White powder	White powder
Whiteness	98%	conformed
SiO2	99.9%	>99.9%
PH value	4.5-5.5	5.0
BET m2/g	200+25	210
105℃ Loss on drying	0.5%-1%	0.6%
Loss on Ignition	1%-1.5%	1.2%
Particle size	20-30nm	20nm
Package	20kg/bag
Conclusion:	Comply to the enterprise standard

Test Methods:

1. Transmission electron microscopy (TEM) method, nano-silica particle has small size, narrow particle size distribution. 2. BET method, nano-silica particle has large specific surface area. 3. Infrared spectroscopy method, nano-silica particle exists a large number of hydroxyl groups and unsaturated residual bonds on its surface, and forms the deviation from the steady state of the silicon oxide structure. 4. Cary-5E spectrophotometer testing method, nano-silica particles--high reflectivity to long wave and visible light about UV. 5. Omnisorp100CX surface area and porosity analyzer, P-type nano-silica surface contains a number of nano porous with the pore rate of 0.611ml /g.

Application:

1 Rubber modified, sealant ceramic toughening modification, adhesives, functional fiber additive, plastic modification, paint aging additives; 2 Ceramics, nano ceramic, composite ceramic substrate; 3 Polymer: can increase the thermal stability and anti-aging polymer; 4 Flame retardant materials and coatings, high grinding medium, cosmetic products; 5 In cluster butyl benzene and chlorinated polyethylene adding a small amount of nano SiO2produce color rubber tenacity, elongation, strength, flexural performance and ultraviolet resistance and thermal aging performance and achieve or exceed epdm; 6 In traditional coating adding a small amount of nano silicon oxides, good solve the suspension stability, thixotropy and poor, poor finish.

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Product Tags

Nano Silica