应用于热熔法聚酰亚胺预浸料制备的碳纤维预处理方法

By optimizing the carbon fiber spreading process and using solvents to remove sizing agents and mechanical vibrations, the problem of residual carbon fiber sizing agents in hot-melt polyimide prepregs was solved, achieving production stability and consistency of high-performance polyimide composite materials.

CN122210810BActive Publication Date: 2026-07-17SICHUAN ZHONGZI ENVIRONMENTAL PROTECTION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN ZHONGZI ENVIRONMENTAL PROTECTION EQUIP CO LTD
Filing Date
2026-05-21
Publication Date
2026-07-17

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Abstract

本发明公开了一种应用于热熔法聚酰亚胺预浸料制备的碳纤维预处理方法，涉及复合材料中间体制备领域。方法包括以下步骤：碳纤维纱密度与预浸料纤维面密度计算碳纤维纱锭的数量并放置在碳纤维纱架上；在碳纤维纱架上对碳纤维纱喷洒溶剂，并对去除上浆剂后的碳纤维纱进行排布与导引；碳纤维纱形成横向碳纱纱带在浸压槽内依次平直穿过若干个陶瓷辊；对经过浸压槽后的横向碳纱纱带施加机械振动以展开；将展开后的碳纤维纱与熔融状态的聚酰亚胺树脂进行浸渍复合。本申请的实施例成功消除了预浸料中的小区域弥散与微气孔缺陷，显著提升了预浸料的致密度、厚度均匀性以及复合材料的层间剪切强度。
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