T/CPCIF 0014-2018 Organic silicone sealant for LED packaging

Scope

Main technical content: It specifies the terms and definitions, technical requirements, test methods, inspection rules, and marking, packaging, transportation, and storage for organic silicone sealants used in LED packaging. **Mixing Viscosity/mPa·s**: 2000~8000 **Operating Time/h**: ≥4 **Hardness**: Shore A/30~80 **Shore D/30~70** **Transmittance (%)**: ≥93 **Refractive Index**: 1.41±0.05 **Shear Strength/MPa**: ≥2.5 **Total Chloride, Sodium, and Potassium Ions/(mg/kg)**: ＜30 **Yellow Index**: ＜0.5 **Water Vapor Permeability/[g/(m2·24h)]**: ＜-6 **Gas Permeability/cm3/m2·24h·0.1MPa**: ＜-350 --- **Explanation of Technical Terms**: 1. **Shore A/D**: A standard hardness test method for rubber and plastics. 2. **Refractive Index**: A physical property of transparent materials that measures their ability to bend light. 3. **Shear Strength**: The ability of a material to resist being pulled apart when subjected to shear forces. 4. **Yellow Index**: A measure of the yellowish tint in a material caused by impurities. 5. **Water Vapor Permeability**: The rate at which water vapor passes through a material. 6. **Gas Permeability**: The rate at which gases pass through a material. --- **Translation Notes**: - Technical terms like "organic silicone sealants" and "LED packaging" were translated to match industry standards. - Numerical values were retained in the original format (e.g., 2000~8000) and units (e.g., mPa·s, g/kg). - Test methods and inspection rules were translated with clarity to ensure technical accuracy. - Specifications like "≥4" and "≤30" were translated as "≥4" and "≤30" to preserve the numerical range. - Standards like Shore A/D were translated as "Shore A/30~80" and "Shore D/30~70" to align with industry practice. - Refractive index was translated as "Refractive Index" to maintain consistency in terminology. - Water vapor permeability and gas permeability were translated as "Water Vapor Permeability"

Development Information

Related Standards