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true

电气绝缘

遮蔽反光

与所有电气设备一样,LED需要介电材料来使引线、电线和其他元件与串扰隔离。然而,随着LED设计和应用在数量和多样性方面不断扩展,内部的敏感电子元件也需要与其他环境因素隔离。制造期间和制造之后的热循环会对LED组件造成破坏性压力,而要求严苛的户外和汽车应用则会使LED暴露在更高的热量和冲击下。  

陶氏的有机硅涂料和灌封材料可帮助保护LED组件免受各种环境因素的影响。除介电绝缘外,陶氏的低模量密封剂可提供出色的机械冲击和振动保护。

Why silicones?

Silicones provide optimal insulation benefits, in comparison to other materials, because of their high dielectric strength.

Dow materials address the key performance issues that challenge the longevity of LED designs.

  • Conformal coatings – ensure durable resistance to chemical, environmental and moisture contamination.
  • Pottants – protect LED drivers from moisture and dust while dissipating damaging heat and absorbing component noise.
  • Silicone gels – provide a flexible dielectric coating that completely insulates and protects delicate parts, such as solder joints and wire bonds, from the effects of thermal expansion.

如何选择有机硅?

DOWSIL™ 3140 RTV涂料是一种流动性好的半透明粘合剂或涂料,高延伸率可提高振动/机械冲击阻尼性能,并具有低应力、良好的阻燃性,经过 UL、IPC 和军用规格测试,含有紫外线指示剂。  

SYLGARD™ 527 A&B 有机硅介电凝胶是一种双组分 1:1 混合比介电凝胶,用于密封和保护各种电子设备,特别是具有精密元件的设备  

DOWSIL™ 1-4105敷形涂料是一种单组分、透明、快速热固化、柔软、消除应力的产品,符合UL要求,含有紫外线指示剂。适合刚性和柔性电路板的防护涂层。