Fig 2 shows absolute values of surface energy for solid materials and the surface tension of many plastics including polyethylene and polypropylene is often insufficient for bonding or printing.

图2显示了绝对价值的表面能量的固体材料和表面张力的许多塑料包括聚乙烯和聚丙烯往往是不够的粘接或打印。

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Wettability depends on one specific property of the surface: surface energy, often referred to as surface tension.

润湿性依赖于某一特定财产的表面：表面能量，通常称为表面张力。

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The higher the surface energy of the solid substrate in relation to the surface tension of the liquid, the better its wettability, and the smaller the contact Angle.

较高的表面能量的固体基质有关的表面张力的液体，它的更好的润湿性，较小的接触角。

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