Method for preparing graphene modified polypropylene fibers by adopting supercritical fluid method

• Main Authors: HE ZUZHANG, CHEN CAIBAO, ZHAO ZHIGUO, LI SINING, ZHANG YANPING
• Format: Patent
• Language: Chinese; English
• Published: 11.12.2020
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention discloses a method for preparing graphene modified polypropylene fibers by adopting a supercritical fluid method. According to the method, a supercritical carbon dioxide fluid method isutilized twice, acrylic acid graft modification is firstly performed on the polypropylene fibers, then the supercritical carbon dioxide fluid method is combined with an instantaneous pressure relief blasting method, instantaneous pressure relief is performed through a screen, and the graphene-loaded modified polypropylene fibers are prepared. The method is green and environment-friendly, the process and the product are high in controllability and stability, tensile strength, heat conductivity and anti-static performance of the prepared graphene modified polypropylene fibers are remarkably improved, and the graphene modified polypropylene fibers can be widely applied to the field of functional fabrics and textiles. 本发明公开了一种采用超临界流体法制备石墨烯改性聚丙烯纤维的方法。本发明两次利用超临界二氧化碳流体法，先将聚丙烯纤维进行丙烯酸接枝改性，再与瞬时泄压爆破法相结合经筛网瞬间泄压，制备成加载石墨烯的改性聚丙烯