ULTEA Negative Thermal Expansion Fillers - Inorganic Powder for Controlled Thermal Expansion
ULTEA Negative Thermal Expansion Fillers - Inorganic Powder for Controlled Thermal Expansion
SKU:FUN-416677
Control thermal expansion with precision using ULTEA Negative Thermal Expansion Fillers - perfect for glass and resin applications.
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$49.99
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ULTEA Negative Thermal Expansion Fillers - Inorganic Powder for Controlled Thermal Expansion
$49.99
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ULTEA Negative Thermal Expansion Fillers - Inorganic Powder for Controlled Thermal Expansion
$49.99
Quantity: 1
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ULTEA Negative Thermal Expansion Fillers are specially designed inorganic powders that display a unique characteristic of contracting in response to increasing temperatures. When incorporated into glass or resin materials, these fillers effectively control thermal expansion, enhancing the overall stability and performance of the end product. With a precise diameter of 1-2 µm, a coefficient of thermal expansion (CTE) of -2 x 10^-6/K, and remarkable heat resistance up to 1000 ºC, these fillers provide exceptional functionality in various applications. Safety attributes include low toxicity and confirmed safety through rigorous examinations, making them ideal for industrial use.
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Product Specifications
Applications Applications
Sealing glass (for PDP, OEL, fluorescent display tube), sealing resin (EMC, epoxy sealant), etc.
Features Features
Negative thermal expansion appears over a wide range of temperature (up to 800 ºC).Low toxicity: Heavy metal free.Good Glass Flowability
General Properties Bulk Specific Gravity
0.8 g/cm³
General Properties Coefficient Of Thermal Expansion Cte
-2 x 10-6/K
General Properties Diameter
1 ~ 2 µm
General Properties Heat Resistance
1000 ºC
General Properties True Specific Gravity
3.2 g/cm³
Mechanism Of Negative Thermal Expansion Mechanism Of Negative Th
ULTEA® has an interesting feature that contracts upon heating rather than expanding as most materials do. According to data of lattice parameters of ULTEA® analyzed by XRD, C-axis expands while A- and B-axis contract upon heating. Considering the volume change, it is calculated that ULTEA® contracts upon heating on average. This feature is thought to depend on its special kind of crystal structure, Zr-O-P bond changes its angle by heating. ULTEA® shows reversibly-change of lattice parameter, so its negative thermal expansion appears unless its crystal structure is collapsed.
Note Note
This technical data is not product standards and subject to change without notice.Please ascertain suitability of our products for your application by experiments or research at your company.These products are for industrial use but not for medical use. Please refer to SDS or consult TOAGOSEI representatives to ensure safety when storing, using, and disposing our products.This technical data is for product introductions and assumes no liability in connection with any use of our products.
Performance Performance
Left figure shows CTE of ULTEA®-added phosphate glass, melted at 520 ºC. Right figure shows CTE of ULTEA®-added epoxy resin, bisphenol epoxy with acid anhydride, thermally cured at 150 ºC.
Safety 0 To 48 Hour Hr Daphnia Acute Toxicity Ec50
> 133 mg/dm³
Safety 0 To 72 Hour Hr Alga Growth Inhibition Erc50
> 100 mg/dm³
Safety 0 To 96 Hour Hr Fish Toxicity Lc50
> 100 mg/dm³
Safety Acute Oral Toxicity Rat Ld50
> 5000 mg/kg
Safety Mutagenicity Ames Test
Negative
Safety Primary Skin Irritation Pii
0
Safety Safety
Safeties of ULTEA® WH2 is confirmed by various examinations.