Effect of Electron Beam Irradiation upon and Electrical Conduction Mechanism for New Polymeric Materials

Polyetherketon（PEEK）和Polyimide （P1），它们在25， 50， 75上被电子束辐射，或100 Mgy被用作样本。用PEEK，辐射材料的条件在200 ° C和210 ° C之间产生了一个小峰值，并以一个密度收取空间费用，但PEA方法的产生是无法衡量的。此外，目前的退化行为和跳跃距离缩短了辐射的交叉联系效应。在另一手上，用P1，目前的辐照材料的情况显示在250 ° C左右的快速增加，但空间费用的形成是不可观察的。下一个，当轮询温度（T2 pieD 2）设置为0.5、1.0和1.5 kV时，轮询电压（T2 pieD 2）设置为100、140和180℃的温度设置为热刺激电流（TSC）的辐射PEEK形式，其峰值转换为较高的温度，即剂量增加。然后，使用XPS设备的粘合剂能量被测量了，这些粘合剂的化学转变也被分析了。作为结果，作为剂量增加，C-O和C=O债券的强度也增加，但C-C减少。这些结果揭示了当电子束变得辐射时，交叉连接需要的地方，但碰撞需要的地方在同一时间增加了密度。在添加中，结构变化之间的关系和空间电荷的形成，结果是DC偏置电压的应用（Vyy D2 b）通过PEA方法的使用进行了调查。当V-y D2 b-y D2被应用时，一种电电荷被注入，通过一种电电荷和一种均匀的空间电荷被产生，但空间电荷更难产生为剂量增加。

Polyetheretherketon (PEEK) and polyimide (P1) that had been irradiated with an electron beam at 25, 50, 75, or 100 Mgy were used as samples. With PEEK, the conduction current of irradiated materials produced a small peak at a temperature between 200 and 210℃ and a space charge with a density that was not measurable by a PEA method was generated. Also, the conduction current decreased and the hopping distance shortened due to the cross-linking effect of irradiation. On the other hand, with P1, the conduction current of irradiated materials displayed a rapid increase around 250℃, but formation of the space charge was not observed. Next, the poling voltage (VィイD2pィエD2) was supplied at 0.5, 1.0, and 1.5 kV while the poling temperature (TィイD2pィエD2) was set at 100, 140, and 180℃ The temperature at which the thermally stimulated current (TSC) of the irradiated PEEK formed its peak shifted toward higher temperatures as the dose increased. Then, the bond energy was measured using an XPS apparatus and the chemical shift of these bonds was analyzed. As a result, as the dose increased, the strength of C-O and C=O bonds also increased, but that of C-C decreased. These results revealed that when an electron beam is irradiated, the cross-linking takes place, but the collapse takes place at the same time to increase the quantity of dipoles. In addition, the relationship between structural change and the formation of the space charge that resulted from the application of DC bias voltage (VィイD2bィエD2) was investigated through the use of the PEA method. When VィイD2bィエD2 was applied, an electric charge was injected through the electrodes and a homogenous space charge was generated, but the space charge was harder to generate as the dose increased.