The enhanced properties and performances of PEN such as high heat stability, better mechanical properties, steam and ultraviolet resistance were recounted briefly.
简述了聚萘二甲酸乙二醇酯（PEN）的优异性能，诸如高耐热性，良好的机械性能，阻气性和防紫外线性等等；
The invention can absorb the redundant heat of finger and provide heat to the finger compared with the common pen, well on being used during hot day in summer and cool day in winter.
本发明相比普通笔可以吸收手指多余的热量 和给手指提供热量，从而很适合在夏天很热的时候和冬天很冷的时候使用。
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