A carbon fiber reinforced thermoplastic (CFRTP) based on polypropylene (PP) matrix was irradiated by an electron-beam to study its effects on tensile properties and thermal stability at different absorbed doses. Two different types of CFRTP specimens were prepared and utilized for the irradiation experiment: neat CFRTP and CFRTP containing triallyl isocyanurate (TAIC) as radiation cross-linker for PP. The irradiation experiment was conducted on CFRTP specimens by gradually increasing the absorbed dose at 100, 200, and 400 kGy under air atmosphere. It was observed that the tensile strength and Young's modulus of both types of CFRTP were enhanced by increasing the absorbed dose. Furthermore, these properties were greatly enhanced for CFRTP containing TAIC. By observing the fracture surface of CFRTP specimens after tensile testing, it was qualitatively confirmed that interfacial adhesion between PP resin and CFs gradually improved by increasing the absorbed dose. Thermogravimetric analysis (TGA) was performed to study the thermal properties of both types of CFRTP which were irradiated at different absorbed doses. The results indicated that thermal stability of both types of CFRTP improved after irradiation, especially for CFRTP containing TAIC. We infer that the tensile properties and thermal stability of CFRTPs increased due to the enhanced adhesion between CF and resin by irradiation and TAIC addition.

用电子束辐照基于聚丙烯（PP）基体的碳纤维增强热塑性塑料（CFRTP），研究其在不同吸收剂量下对拉伸性能和热稳定性的影响。制备了两种不同类型的CFRTP标本，并用于辐射实验：纯净的CFRTP和含有三烯丙基异氰脲酸酯（TAIC）作为PP的辐射交联剂的CFRTP。通过在空气中分别以100、200和400 kGy逐渐增加吸收剂量，对CFRTP标本进行了辐照实验。观察到两种类型的CFRTP的抗张强度和杨氏模量都通过增加吸收剂量而提高。此外，对于包含TAF的CFRTP，这些性能大大增强。通过观察拉伸试验后CFRTP试样的断裂表面，定性地证实，通过增加吸收剂量，PP树脂和CFs之间的界面粘附力逐渐提高。进行热重分析（TGA）以研究两种CFRTP的热性能，这些CFRTP以不同的吸收剂量进行辐照。结果表明，两种类型的CFRTP的热稳定性在辐照后均得到改善，尤其是对于含TAIC的CFRTP。我们推断，CFRTPs的拉伸性能和热稳定性由于辐照和TAIC添加而增强了CF和树脂之间的附着力而增加。结果表明，两种类型的CFRTP的热稳定性在辐照后均得到改善，尤其是对于含TAIC的CFRTP。我们推断，CFRTPs的拉伸性能和热稳定性由于辐照和TAIC添加而增强了CF和树脂之间的附着力而增加。结果表明，两种类型的CFRTP的热稳定性在辐照后均得到改善，尤其是对于含TAIC的CFRTP。我们推断，CFRTPs的拉伸性能和热稳定性由于辐照和TAIC添加而增强了CF和树脂之间的附着力而增加。