Silicone Rubber for LED ,IC Encapsulating use Our silicone series for encapsulation field exclusively apply in LED, IC chips, CPU & VLSI to transfer the internal heat to outside region, stain higher temperature, moisture proof,adhesive for better weather resistance . Our silicone series is suitable for temperature (-50) to 250oC for a long time operation amd still keep their characters. It is the best material for Encapsulation purpose specially compare to the epoxy resin.
The most popular Silicone Rubber RAY-8632 for LED , specificationas and introduction as under.
RAY-8632 為加成型矽膠,硬化後具有良好的物性,手感及緩衝性,可用於電子晶片, 印刷電路板的粘著,絕緣,防潮及緩衝處理,
硬化前物性
RAY8632-A
粘度 5000 cps
比重 1.01
外觀 透明
RAY-8632-B
粘度 1500 cps
比重 1.01
外觀 透明
硬化後物性
體積電阻 > 1.0 x 1015 ohm-cm
絕緣強度 > 20 Kv/mm
折射率 1.522
穿透率 92% /450nm
硬度 30 (Shore A)
熱重損失 < 0.2%
操作方法
秤重 取RAY8632- A與RAY8632- B以10:1(重量比)之比例充份混合 (此混合物粘度約3500 cps)
去泡 將此混合物,置入真空設備中,真空度約在500 mmHg以上 (小心氣泡溢出容器外),直到氣泡被完全抽出
灌模 小心地將混合物灌入欲成模之模具中,過程中注意避 免產生氣泡
硬化 已灌入矽橡膠的模具,置入150℃烘箱中20分鐘,即可 在模具中成型
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