Effect of electron-beam radiation on thermoplastic composites
Effect of electron-beam radiation on thermoplastic composites
复制标题
电子束辐射对热塑性复合材料的影响
DOI：
10.1179/174328905x48568
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
K. Friedrich
中科院分区：
文献类型：
--
作者：
S. Wiedmer;D. Gellner;K. Friedrich
研究了电子束辐照对碳纤维增强热塑性塑料(PBT、PPS、PA)复合材料的影响。为了澄清交联剂是否可以在没有交联剂的情况下或仅在交联剂存在的情况下发生，特别注意将这种交联剂加入到碳纤维含量为50%(体积比)的聚合物片材中。对材料辐照前后在不同辐照剂量下的热性能和力学性能进行了评价。对于以PBT、PPS和PA46为基的材料，辐照后材料的性能没有明显变化。然而，在辐照后交联剂的存在下，CF/PA66发生了一些变化，这可能与辐照引发的交联反应有关。辐照对材料的弯曲性能影响不大，但对材料的蠕变行为有改善作用。还制备了非增强尼龙66板材，凝胶含量测量表明，成功地诱导了交联剂的形成。更多的研究使这种交联剂在聚合物中的变化得以量化。
The effect of electron beam (EB) radiation on carbon fibre reinforced (CF) thermoplastic (PBT, PPS, PA) composites was investigated. To clarify whether crosslinking could take place without or only with the presence of a crosslinking agent, special attention was paid to the incorporation of this agent into polymer sheets with a carbon fibre content of 50% by volume. The thermal and mechanical properties of the materials before and after exposure under different irradiation doses were evaluated. For materials based on PBT, PPS and PA46, no significant changes in properties after irradiation could be observed. However, CF/PA66 exhibited some changes in the presence of a crosslinking agent after irradiation, which could be related to an irradiation-induced crosslinking reaction. The effect of irradiation on the flexural properties was insignificant but an improvement in the creep behaviour was observed. Non-reinforced PA66 plates were also manufactured and a gel content measurement indicated that crosslinking was successfully induced. Additional studies allowed the changes in the polymer due to this crosslink to be quantified.