Scholarlink

<p>Despite the advantages of thermoplastic resin, pultrusion process has struggled to create bidirectional laminates, resulting in weaknesses in joint connections and transverse properties. To tackle this issue, the study focuses on developing a methodology for pultruding bidirectional laminates. Initially, two types of sheet thermoplastic prepreg of glass fiber and polypropylene were produced: one with transverse (90°) orientation of fibers and another with longitudinal (0°) orientation of fibers. These sheets are then integrated into a single pack where fibers are oriented both transversely and longitudinally, and fed into the pultrusion machine. The resulting strip profiles (75 × 3.5&#xa0;mm) demonstrate threefold increase in pin-bearing strength and transverse properties, showing a considerable promise for applications that demand robust joint connections and dimensional stability. The addition of transversely reinforced plies makes it possible for the pultruded profile to meet the EN&#xa0;13706-3 requirements to mechanical performance. The bidirectional thermoplastic profiles produced in this study demonstrated high mechanical properties and are suitable for use in composite structures with bolted joints.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Pultrusion of glass fiber reinforced polypropylene bidirectional composites and their mechanical performance

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月14日

查看全文
  • Mohiuddin Emon,
  • Kirill Minchenkov,
  • Sergey Gusev,
  • Chenggao Li,
  • Guijun Xian,
  • Alexander Safonov

摘要

Despite the advantages of thermoplastic resin, pultrusion process has struggled to create bidirectional laminates, resulting in weaknesses in joint connections and transverse properties. To tackle this issue, the study focuses on developing a methodology for pultruding bidirectional laminates. Initially, two types of sheet thermoplastic prepreg of glass fiber and polypropylene were produced: one with transverse (90°) orientation of fibers and another with longitudinal (0°) orientation of fibers. These sheets are then integrated into a single pack where fibers are oriented both transversely and longitudinally, and fed into the pultrusion machine. The resulting strip profiles (75 × 3.5 mm) demonstrate threefold increase in pin-bearing strength and transverse properties, showing a considerable promise for applications that demand robust joint connections and dimensional stability. The addition of transversely reinforced plies makes it possible for the pultruded profile to meet the EN 13706-3 requirements to mechanical performance. The bidirectional thermoplastic profiles produced in this study demonstrated high mechanical properties and are suitable for use in composite structures with bolted joints.