摘要
超高分子量聚乙烯/碳纳米管复合纤维拥有高强度,高模量等性能,在防弹等方面有广泛的应用,但在使用中容易发生蠕变。文章通过在光化学反应仪上对超高分子量聚乙烯/碳纳米管复合纤维进行紫外光辐射交联,辐射交联后分析蠕变性能及凝胶量的变化。结果表明,纤维随着交联液浓度的增加,纤维的凝胶量增加,抗蠕变性能增强;随着紫外辐射时间的延长,纤维的凝胶量增加,抗蠕变性能增强,当辐射时间较长时,其抗蠕变性能下降,紫外光辐射时间为8min时,效果较好。同超高分子量聚乙烯相比,加入碳纳米管后复合纤维有更好的抗蠕变性能,辐射交联后复合纤维抗蠕变性能有更大的改善。
Ultra-high molecular weight Polyethylene/Carbon nanotubes(UHMWPE/CNTs) composite fibers have high specific strength and modulus. The fibers are widely used in bullet-proof, etc, but that prone to creep in applications. In this paper, UHMWPE/CNTs composite fibers carry out ultraviolet cross-linking on the photochemical reaction apparatus. After cross-linking the authors analyze fibers' creep and gel content change. The results show that the improvement of creep resistance of fibers and gel con- tent increase with the increasing of dose. With UV irradiation time adding, the fiber creep resistance and gel content are increased. But the irradiation time is longer, creep resistance of fibers is decreased. When the UV irradiation time is 8 minutes, the result is better. Compared with the Ultra-high molecular weight polyethylene, after adding carbon nanotubes fibers have better creep resistance and greater creep resistance improvement after radiation cross-linking.
出处
《浙江理工大学学报(自然科学版)》
2012年第2期184-187,共4页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
作者简介
陈足论(1984-),男,浙江苍南县人,硕士研究生,主要从事化学纤维成型技术及其改性研究。