Enhanced TDS
Knowde-enriched technical product data sheet
Identification & Functionality
- Chemical Name
- CASE Ingredients Functions
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Materials Features
- Features and Benefits
- The flame-retarding action is based mainly upon the endothermic decomposition of metal hydroxide (heat-sink effect) and simultaneous release of water vapor and CO2. This reaction starts at about 240°C. Securoc® C 10 is used in applications where processing temperatures exceed 200 oC, making ATH unsuitable. The main uses are in PVC and chloroprene wire & cable compounds and PVC/NBR foams.
- Development of Halogen Free Flame Retardant (HFFR) products is one of the on-going high priority areas of the industry. The application of mineral based flame-retardant fillers is one of the options to replace the traditional halogenated FR-products that are in the process of new regulatory measures from the authorities. Hot topics are the persistency of halogenated flame retardants in the environment and the formation of poly-halogenated toxic compounds during thermal degradation of certain halogenated flame-retardants.
- SecurocĀ® C 10 products are utilized as effective and economical flame retardants and/or smoke suppressants. They are not classified as a dangerous substance (DSD and CLP) and do not contain Substances of Very High Concern (SVHC), including their decomposition products from fire.
- Product Background
- Securoc C10 and Securoc D10 products are different blends of two minerals: Huntite and Hydromagnesite
- Huntite particles have a platy morphology and the particles are usually about 1 μm or less in diameter, much smaller than hydromagnesite particles. It has the following chemical formula and thermally decomposes between about 450°C and 750°C in two stages, releasing only carbon dioxide, leaving a solid residue of magnesium oxide and calcium oxide: Mg3Ca(CO3)4 ā 3MgO + CaO + 4CO2
- The solid residue is called ācharā and is critical to obtain smoke suppression . Char coming from Huntite has better mechanical properties than char generated by the thermal decomposition of hydromagnesite (which only consists of MgO)
- Natural hydromagnesite particles have a āblockyā morphology and once processed the majority of the particles are usually between 1 and 10 μm in diameter depending on the processing.
- It thermally decomposes between about 220°C and 550°C in two stages, initially releasing water then carbon dioxide, leaving a solid residue of magnesium oxide: Mg5(CO3)4(OH)2Ā·4H2O ā 5MgO + 4CO2 + 5H2O
Applications & Uses
- Markets
- Applications
- Compatible Polymers & Resins
- Plastics & Elastomers End Uses
Properties
- Physical Form
- Physical Properties
Value Units Test Method / Conditions Surface Area 11.0 m²/g BET Color (D65;10Āŗ, L*) 97.4 - CIELAB Spectrophotometer Color (D65;10Āŗ, a*) 0.0 - CIELAB Spectrophotometer Color (D65;10Āŗ, b*) 1.2 - CIELAB Spectrophotometer Moisture Content (at 105°C) 0.5 % Moisture analyser pH 10.0 - ISO 787/9 Density 2.7 g/cm³ He pycnometer Loose Apparent Density 0.4 g/cm³ Internal method Hardness 2 - 3 - Mohsā scale Refractive Index 1.61 ā 1.64 - - Thermal Stability approx. 240 °C DSC - Particle Size Distribution
Value Units Test Method / Conditions Percentage Passing on Individual Sieve (45 μm) 0.01 % Alpine air jet sieved Particle Size (D10) 1.0 μm - Particle Size (D50) 4.0 μm Laser diffraction Sympatec Particle Size (D50) 0.6 μm Sedigraph D 5000 Particle Size (D90) 10.0 μm - Particle Size (D97) 16.0 μm - - Chemical Analysis
Value Units Test Method / Conditions Magnesium Oxide (MgO) 36.0 wt% XRF Calcium Oxide (CaO) 9.9 wt% XRF Silicon Dioxide 0.19 wt% XRF Ferric Oxide (FeāOā) 0.015 wt% XRF Fatty acid 3.0 wt% Titrimetric Loss on Ignition (1000°C, 1 hour) 53.4 wt% XRF
Regulatory & Compliance
- Certifications & Compliance