中国塑料 ›› 2013, Vol. 27 ›› Issue (03): 110-116 .DOI: 10.19491/j.issn.1001-9278.2013.03.022

• 机械与模具 • 上一篇    

长玻纤增强聚丙烯热塑性复合材料制备风光互补发电系统风能叶片的模具设计和注射成型

方鲲 吴丝竹 黄永强 张顺来 皮开红 俞红鹰   

  1. 北京化工大学材料科学与工程学院 北京纳胜通新材料科技有限公司
  • 收稿日期:2012-08-29 修回日期:2012-12-06 出版日期:2013-03-26 发布日期:2013-03-26

Mold Design and Injection Moulding of Small Wind Turbine Blades Manufactured by Long Glass Fiber Reinforced Polypropylene Composites

  

  • Received:2012-08-29 Revised:2012-12-06 Online:2013-03-26 Published:2013-03-26

摘要: 对长玻纤增强聚丙烯(LFT-PP)和短玻纤增强聚酰胺(SFT-PA6)的性能进行了测试与比较。常温时(23 ℃),悬臂梁缺口冲击强度前者比后者提高3.44 %,吸水率后者比前者高100 %,模收缩率前者比后者低10 %;低温时(-30 ℃),前者的冲击强度提高了16 %~24 %。通过优化的模具设计、模流数值计算分析和注塑工艺条件实验,选择最佳注塑工艺参数制备LFT-PP叶片,可使叶片疲劳断裂强度的最大静载荷测试值达到150 kg。

关键词: 聚丙烯, 玻璃纤维, 热塑性复合材料, 注射成型, 叶片

Abstract: This paper summarized the comparison of performance between long fiber reinforced polypropylene (LFT-PP) and short fiber reinforced polyamide (SFT-PA6) according to the test result. It showed that at room temperature (23 ℃), the Izod impact strength of LFTPP was 3.44 % enhanced than SFT-PA6; water absorption of SFT-PA6 was twice of LFT-PP; mold shrinkage of LFT-PP was 10 % lower than SFT-PA6. At low temperature (-30 ℃), impact strength of LFT-PP was 16 %~24 % enhanced.The max static load (test value) of fatigue crack of LFT-PP blades manufactured with the optimal injection processing parameters could be up to 150 kg.

Key words: polypropylene, glass fiber, thermoplastic, injection molding, blade