Tasaka K, Williams L, Farrar J T
Pflugers Arch. 1979 Apr 30;379(3):303-5. doi: 10.1007/BF00581438.
The physical properties of the balloons made of some polymeric substances were studied. The polyurethanes provided high frequency characteristics but air-leaking disqualified except ECD-651 which was most satisfactory: low permeability and ease of fabrication. Saran was proper but troublesome in making the balloon. Polypropylene and polyethylene, available in film, required heat sealing, which resulted in deformity and low frequency characteristics.
对一些聚合物质制成的气球的物理性质进行了研究。聚氨酯具有高频特性，但除了最令人满意的ECD - 651（低渗透性且易于制造）外，其他的都因漏气而不合格。莎纶是合适的，但制作气球时很麻烦。聚丙烯和聚乙烯有薄膜形式，但需要热封，这会导致变形和低频特性。
