The effects of γ-irradiation and thermal drying treatments at an industrial level, and accelerated ageing on the properties of pure cellulose paper are investigated with a multi-disciplinary approach. Viscometry is used for measuring the degree of polymerisation, visible reflectance spectroscopy for colour changes, tensile strength and tearing resistance tests for mechanical properties, Fourier transform IR spectroscopy and scanning electron microscopy for possible chemical or physical modifications of the surface. The results indicate that γ-rays (5 and 10 kGy) cause a sizeable reduction of the degree of polymerisation, but only small colour changes, while larger effects on the colour are caused by the synergetic effect of ageing. In spite of the large degree of polymerisation decrease, γ-irradiation is found to only slightly affect the mechanical properties, as well as thermal and ageing treatments. No clear evidence for changes in the FTIR spectral features due to the treatments employed is found.

采用多学科方法研究了工业水平上的γ辐射和热干燥处理以及加速老化对纯纤维素纸性能的影响。粘度测定法用于测量聚合度，可见反射光谱法用于颜色变化，抗张强度和抗撕裂性测试以用于机械性能，傅立叶变换红外光谱法和扫描电子显微镜用于表面可能的化学或物理改性。结果表明，γ射线（5 kGy和10 kGy）会引起聚合度的显着降低，但只有很小的颜色变化，而对颜色的较大影响则是由老化的协同作用引起的。尽管聚合度大大降低，发现γ辐照仅会轻微影响机械性能以及热处理和时效处理。没有明确证据表明由于所采用的处理方法，FTIR光谱特征发生了变化。