Precipitated Silica Matting Agent 7631-86-9 With Good
Dispersibility
Description
It is a micronized synthetic amorphous precipitated silica dioxide
appearing as white powder. This silica based matting agent for both
solventbome and waterbome system. Optimal matting efficiency is
achieved by using silica with high pore volume and by fine control
of the particle size and particle size distribution. It provides a
superior matting and flatting, excellent coating appearance and
transparency, cost efficient, effective anti-settling agent and
easy dispersion, smooth, abrasion resistant films of high surface
quality. These efficient matting agent are suitable for unpigmented
and pigmented systems. It mainly used for wood coating, decorative
coating, industrial coating, plastic coating, coil coating and ink.
Characters
1, Good Transparency: Products high purity lead the refractive
index inosculate with resin index.
2, Good Disperse Heat: Special production process to make heat
quickly spread to other surfaces of paint, to extend the service
life of paint.
3, Good Suspension: This series of products the within molecular
structure and surface structure have been a special treatment,
place a long time don’t appear hard and stratified sedimentation
phenomenon.
4, Good Matting Efficiency: Advanced production technology to make
our products not only increase pore volume but also ensuring that
the particle arrangement gap uniformity to achieve very good
matting efficiency.
5, Good Dispersibility: This series of products that can easily
decentralized in any paint system, the average high-speed pulsator
with 10-20 M/S of the line speed, after 10 minutes can be ok.
Chemical Data
| Item Type | HF-620 | HF-620L | HF-630 | HF-630L | HF-650L |
| Content of sio2(dry basis) %, | ≥99.0 | ≥99.0 | ≥99.0 | ≥99.0 | ≥99.0 |
| Porosity ml/g | 1,8-2.0 | 1.8-2.0 | 1.8-2.0 | 1.8-2.0 | 1.8-2.0 |
| Oil absorption, g/100g , g/100g | 270-320 | 270-320 | 270-320 | 270-320 | 270-320 |
| Particle Size, um(Malvent,D50) | 4-4.5 | 4-4.5 | 5-5.5 | 5-5.5 | 6-7 |
| Loss on drying(105℃,2Hrs) | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 |
| Ignition loss(1000℃,2Hrs) | ≤7.0 | ≤7.0 | ≤7.0 | ≤7.0 | ≤7.0 |
| Whiteness | ≥90.0 | ≥90.0 | ≥90.0 | ≥90.0 | ≥90.0 |
| PH(5% Liquor) | 6-7 | 6-7 | 6-7 | 6-7 | 6-7 |
| Surface Treatment | NONE | Organic | NONE | Organic | Organic |
Applications
1, High Wood Coatings, Furniture Coating, Floor Coating
2, Printing Inks, Gravure Printing Ink, Offset Printing Ink, Screen
Printing Ink, Printing Packing Material.
3, Industrial Coating, Metal baking Coating, Decorative Coating
4, Automotive Coating, Car Coating.
5, Plastic Coating, 3C Coating.
