High-temperature-resistant ultra-high molecular weight polyethylene fiber and preparation method thereof

• Main Authors: LIN MINGQING, WU CHUANQING, ZHOU YUNBO, YANG HENG, GAO BO
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2021
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention belongs to the technical field of polyethylene fibers, and particularly relates to a high-temperature-resistant ultra-high molecular weight polyethylene fiber which comprises the following raw materials: an ultra-high molecular weight polyethylene solution and a graphene aqueous dispersion in a weight ratio of 50-55: 1. The graphene aqueous dispersion comprises the following raw materials: graphite, sodium nitrate, potassium nitrate, concentrated sulfuric acid, potassium permanganate, deionized water and a hydrogen peroxide aqueous solution in a weight ratio of (1-3): (0.5-1.5):(1-2): (2-3): (0.1-0.3): (5-15): (2-3). The high-temperature-resistant ultra-high molecular weight polyethylene fiber can resist 158 DEG C for 5 minutes, which is far higher than the 135 DEG C of themelting point of common ultrahigh molecular weight polyethylene fibers. 本发明属于聚乙烯纤维技术领域，具体是涉及到一种耐高温超高分子量聚乙烯纤维，包括如下组分原料，超高分子量聚乙烯溶液和石墨烯水分散液，超高分子量聚乙烯溶液和石墨烯水分散液的重量比为50-55:1，所述石墨烯水分散液包括如下组分原料，石墨、硝酸钠、硝酸钾、浓硫酸、高锰酸钾、去离子水和双氧水水溶液，上述组分原料的重