Hydrophobic nano silicone powder/silica powder 2.gel flow is stopped 3.bond effect is improved, 4.seepage-proofing

Hydrophobic nano silicone powder&silica powder

Sealant, adhesive:

 

Nano silica could greatly improve performance of sealant and adhesive, its mechanism is that Nano silica has water repelling property, when it is used in sealant, a silica net structure is formed, so gel flow is stopped, curing rate speeds up, bond effect is improved. The tightness and seepage-proofing are increased because of small size of Nano silica. When Nano silica is used in adhesive, the tensile and elongation are much better than those without Nano silica.

 

MGS Series Nano-SiO2(white carbon black)Quality Index

  

Item	Quality Index
	MGS-1	MGS-2	MGS-3	MGS-4
Appearance	High dispersive white power
Heat reduction(%)(105°C 2h) ≤	3	3	3		3
Loss on Ignition(%)( 950°C 2h) ≤	6	10	10		6
SiO2 content(dry base)(%) ≥	92	90	90		92
SiO2 content (%)(950°C2h)≥	99.8
Carbon content  (%)           ≥	0.15	0.3	0.3		0.15
Specific surface area(m2/g)(BET law)	100±25	120±20	200±25		100±25
PH value	6.5~7.5	6.5~7.5	6.5~7.5		6.5~7.5
Surface density(g/ml)  ≤	0.15	0.10	0.2		0.15
Dispensability (%)(CCl4)        ≥	80	80	85		80
Oil-absorbed value(ml/100g)       ≥	250	260	260		250
Average particle size(nm)	10-25	15-25	5-15		10-25
Hydrophobicity	Strong Hydrophobicity	Extra Hydrophobicity	Hydrophobicity		Strong Hydrophobicity

Hydrophobic nano silicone powder&silica powder