Research progress of pultrusion process for carbon fiber reinforced polymer composites

doi:10.19936/j.cnki.2096-8000.20260428.018

Abstract

Abstract: Pultrusion process possesses unique advantages in the production of carbon fiber reinforced polymer (CFRP) due to its high productivity, high raw material utilization, and outstanding designability. It is widely used in various fields such as wind turbo blade and aeronautics. This paper reviews the pultrusion application status. Since resin plays the role of matrix materials of CFRP, we discuss in detailthe pultrusion related to the classification of thermosetting resin and thermoplastic resin. Thermosetting resin possesses low viscosity, low molding temperature and a series of advantages, including epoxy resin, polyester resin. The most obvious characteristic of thermoplastic resin is recyclability, but the high viscosity and high molding temperature restrict its application. The specific cross section structures of CFRP can be fabricatedcorresponding to the advantageous of pultrusion, for example, linear, rounded and H-shaped profiles and other shaped profiles could be quantity produced using pultrusion. We further clarified the specific production process and corresponding optimization design scheme, including fiber arrangement, fiber impregnation, curing molding, described the test methods and evaluation of pultruded composite, including tensile strength, bending strength, interlaminar fracture toughness related to mechanical properties, and C-scan related to nondestructive testing. Finally, we discussed CFRP recycling, the existing problems of pultrusion process in CFRP and expected the future development trend.

Key words: CFRP, thermosetting/thermoplastic resin, pultrusion process, performance test, application status

CLC Number:

TB332

HU Yujie , ZENG Yonghong , LIU Yonghong , SUN Lin , ZHANG Lianhe , ZHU Hongqiang , LU Wenfeng , CAI Yadi , ZHU Minjiang , ZHOU Zewen , ZHANG Hui. Research progress of pultrusion process for carbon fiber reinforced polymer composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(4): 144-160.

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