• English
    • 正體中文(0)
    • 日本語(0)
    • 简体中文(0)
  • Add to favorites
  • USD
    • USD - US DollarChange
  • Sign In
  • Favorites
    • Product(0)
    • Supplier(0)
  • Items
  • Go to Taiwantrade

Ok
  • Home
  • Products
  • Hot Products
  • silicone for LED/LCD encapsulation use
  • Silicone Rubber for LED ,IC Encapsulating use
HomeProductsHot Productssilicone for LED/LCD encapsulation useSilicone Rubber for LED ,IC Encapsulating use

Silicone Rubber for LED ,IC Encapsulating use

Ray - 8637 Silicone Rubber

封裝必須讓LED有最佳的散熱性,特別是HB(高亮度)幾乎意味著HP (High Power,高功率、高用電),進出LED的電流值持續在增大,倘若不能良善散熱,則不僅會使LED的亮度減弱,還會縮短LED的使用壽命。過去LED最常用的是環氧樹脂(epoxy),不過環氧樹脂老化後會逐漸變黃(因「苯環」成份),進而影響光亮顏色,尤其波長愈低時老化愈快,特別是部分WLED使用近紫外線(Near ultraviolet)發光,與其他可見光相比其波長又更低,老化更快。矽樹脂(silicone)換替環氧樹脂矽膠除了對低波長有較佳的抗受性、較不易老化外,矽膠阻隔近紫外線使其不外洩也是對人體健康的一種保護,此外矽膠的光透率、折射率、耐熱性都很理想高達1.5∼1.53的折射率,波長範疇在350nm∼800nm間的光透率達95%,且波長低至300nm時仍有75%∼80%的光透,折射率降至1.41,如此即便是 300nm波長也能維持95%的光透性. RAY-8637為加成型矽膠,硬化後具有良好的物性,手感及緩衝性,可用於蕊片, 印刷電路板的封裝,絕緣,防潮及緩衝處理,

硬化前物性

RAY8637-A

粘度 1500 cps

比重 1.01

外觀 透明

RAY-8637-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 1.412

穿透率 95% /450nm

硬度 75 (Shore A)

熱重損失 < 0.2%

操作方法

秤重 取RAY8637- A與RAY8637- B以10:1(重量比)之比例充份混合 (此混合物粘度約1500 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 已灌入矽膠液的模具,置入100℃烘箱中50分預熱,后150℃經 150分烘烤即可.

Products are MADE IN TAIWAN not in China

Use of Data
We use cookies to process data, such as your IP address, for content personalization, advertising, and analytics.Usage data may be shared with our partners and combined with other information.
By using this site, you agree. Taiwantrade & iDealEZ’s Privacy Policy

Welcome to Taiwantrade.com

Taiwantrade.com and iDealEZ.com uses analytical cookies and other tracking technologies to offer you the best possible user experience. By using our website, you acknowledge and agree to our cookie policy.

For more information on cookies or changing your cookies settings, read Taiwantrade & iDealEZ’s Privacy Policy.