Abstract In the production of carbon fiber reinforced plastic (CFRP), sizing agents are used to protect against fiber damage due to friction and to improve the affinity between the fiber and the matrix. The sizing agent improves the wettability between the fiber surface and the resin, reduces voids between the CFRP, and increases the physical properties. If the sizing agent is selected incorrectly, problems such as deterioration of physical properties and action as contaminants may occur. Therefore, it is necessary to develop a sizing agent having adhesiveness, workability, durability, water resistance and flexibility. Therefore, in this study, the water-dispersed polyurethane resin with the properties required above was synthesized and its properties were evaluated.

中文翻译：

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用于 CFRP 应用的聚氨酯基施胶剂

摘要 在碳纤维增强塑料（CFRP）的生产中，上浆剂用于防止纤维因摩擦而损坏，并提高纤维与基体之间的亲和力。上浆剂提高了纤维表面与树脂之间的润湿性，减少了CFRP之间的空隙，增加了物理性能。如果上浆剂选择不正确，可能会出现物理性能下降和污染物作用等问题。因此，有必要开发一种具有粘合性、可加工性、耐久性、耐水性和柔韧性的施胶剂。因此，在本研究中，合成了具有上述性能要求的水分散聚氨酯树脂并对其性能进行了评价。