
Merchandise Introduction
Cristobalite powEPTis made of chosen vein quartz ore calcined at about 1500 ordmC, processed by non-polluting grinding, magnetic separation and classification.
The houses are stable, the silicon content is in excess of 99.eight%, the crystalline stage is tetragonal, the hardness is about six.five, the density is 2.45, huge specific surface, substantial porosity, great climate resistance, good precipitation resistance, great thermal shock resistance .
Software:
It is utilized in jewellery casting, precision casting, dental supplies, digital chip poXiHu (West Lake) Dis.Hu (West Lake) Dis.ng, poXiHu (West Lake) Dis.Hu (West Lake) Dis.ng materials, creating interior and exterior wall coatings, road reflective coatings, automotive primers, plastics, rubber, silicone rubber, adhesives, nationwide defense and other fields.
Primary Characteristics:
1. Superb optical properties. The refractive index of cristobalite decreases from one.fifty five to one.48, which is closer to that of PE, PP and some resins. The blended resin is clear and does not protect the color of the pigment by itself, although filling with other fillers will make the coloration of the pigment lighter and distorted.
two. High reflectivity. The concrete structure of cristobalite can assist ligEPT reflection and substitute glass beads as reflective paint. It can not only enhance the anti-skid house, but also improve the reflectivity of paint.
3. Substantial whiteness, reduced density and brigEPT color. The whiteness of cristobalite is more than ninety five%. It can change element of EPTium dioXiHu (West Lake) Dis.de and lessen the cost of formulation when used in coatings and paints.
four. Corrosion resistance, scratch resistance and scrubbing resistance.
5. It does not incorporate natural air pollution and has quite low steel content. It can improve the EPTresistance of the coating and has very good insulation.
6. Excellent thermal shock resistance. When quartz is heated at 220 – 240 C, a specific diploma of thermal enlargement occurs, which compensates for the shrinkage of epoxy resin and gypsum during curing response at this temperature, so that the casting physique does not deform.
7. Application of cristobalite in adhesives
It has minimal oil absorption benefit, essentially no edges and corners, minimal viscosity relative to white carbon black, more robust weathering residence than white carbon black (white carbon black is alkaline), very good bonding result ( tough floor), very good peel toughness, higher pull-out strength and large area resistance. Right after modification, it can be far better combined with epoxy resin program to eliminate bubbles and settlement.
A ideal proportion of diatomite can be extra to the formulation so as to much better boost the adhesion. The silicon powEPThas numerous joint surfaces, evident edges and corners, and difficult to bond. Kaolin is hexagonal flake, red soon after burning, and has several joints (not easy to bond).
eight. Modified quartz powEPTis typically employed as an anti-caking material for transparent PP and PE, LDPE, LLPDE. In movie manufacturing, since quartz has the same refractive index, for most polyolefin movies, this additive has little impact on the optical homes of movies. Other EPT purposes incEPT ultrathin films and double extrusion films, which demand ultrafine quartz powders. 600 mesh quartz powEPTis generally utilised as IR absorption content in greenhouse movie.
nine. Cristobalite powEPThas large area power, hydrophilic and oleophobic surface area, straightforward agglomeration. It is hard to disperse evenly in non-polar or weakly polar paints. As a result, it is required to modify the surface of ultrafine powEPTso that the area of quartz particles can be coated with a layer of natural substances (this sort of as coupling agents, surfactants, and so on.) to make it oleophobic and hydrophilic to oleophilic and hydrophobic. This not only enhances the compatibility and binding pressure amongst quartz powEPTand matrix/substrate, but also improves the dispersion of quartz.
Technical Info Sheet
| Merchandise | Device | StXiHu (West Lake) Dis.Hu (West Lake) Dis.rd Scope | Common Values |
| Look | – | White powder | 600mesh |
| SiO2 | % | ninety nine%-99.eight% | ninety nine.six |
| Indicate Grain dimension | microm | two-twenty five | 11.fifty six |
| Whiteness | % | 90-ninety eight | ninety four |
| Fe2O3 | % | le0.03 | .012 |
| Burning Vector | % | .1-.3 | .16 |
| PH Worth | 6.five-eight. | seven.two | |
| Dampness | % | .02-.1 | .08 |
| Cristobalite | % | 65-ninety five | 73.8 |
| Wager | cm3/cc | 1700-8000 | 4828 |
| Density | g/cm3 | two.45 | two.forty five |
| Moh’s hardness | five-seven | 6 | |
| Melting Position | ordmC | 1750 | 1750 |
| We can make 400-6000 mesh items with diverse specs according to consumer needs. | |||
Edge
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HangZhou EPT Mineral Merchandise Co.,Ltd.

