The radiation modification filament was successfully used in reinforce heatshrinkables and can meet completely the requirements of the reinforced heat shrinkable materials.

力学性能无劣化，完全能满足增强型热缩材料的使用要求。

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Chemistry modification together with blend modification was effective for the modification of the block copolymer. Radiation modification by electron beam and ultraviolet were an important trend.

将各种化学改性方法和共混改性方法结合起来运用，有条件时进一步使用电子束或紫外光改性，是其重要的发展趋势。

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The mechanism of organic reactions promoted by microwave is briefly introduced, and developments of microwave radiation technique in chitosan modification are summarized.

简要阐述了微波促进有机反应的原理，综述了近年来微波辐射技术在壳聚糖改性中的应用研究。

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