高分子化合物在高能射线作用下可以进行交联及裂解反应;交联后高分子结构由线型转变为体型(网状结构),使性能发生显著的变化,除仍保留原来的一些基本性能外,还出现很多新的特殊性能。同时亦发现可以利用辐射裂解的方法制备某些具有特殊性能的低分子材料。因此辐射改性应该包括辐射交联及辐射裂解二方面的内容。 Polymer compounds under the action of high energy rays can be cross-linking and cracking reactions; cross-linked polymer structure from linear to body (network structure), the performance of significant changes, except still retain some of the original basic performance , There are many new special features. At the same time, it was also found that certain low molecular weight materials with special properties can be prepared by means of radiation pyrolysis. Therefore, radiation modification should include radiation cross-linking and radiation pyrolysis two aspects.