One component room temperature stable epoxy resin compositions for
VARTM/RTM systems
    2.
    发明授权
    One component room temperature stable epoxy resin compositions for VARTM/RTM systems 失效
    用于VARTM / RTM系统的单组分室温稳定的环氧树脂组合物

    公开(公告)号:US5942182A

    公开(公告)日:1999-08-24

    申请号:US999527

    申请日:1997-09-19

    摘要: The present invention relates to a process for forming a composite article in a resin transfer molding system. The process includes the steps of providing a fiber preform in a mold, injecting a matrix resin into the mold, allowing the matrix resin to impregnate the fiber preform, and heating the resin impregnated preform to at least about 200.degree. F. for sufficient time to produce at least a partially cured solid article. The matrix resin comprises 1) a liquid epoxy resin component selected from the group of a phenolic novolac epoxy resin,, a cycloaliphatic epoxy resin and mixtures thereof; 2) an epoxy diluent; and 3) at least one latent curing agent that cures only when subjected a temperature of at least about 200.degree. F. The partially cured solid article may be subjected to post-curing operations to produce a final composite article. The present invention also relates to a process for forming a composite article in a vacuum assisted resin transfer mold system.

    摘要翻译: 本发明涉及一种在树脂传递模制系统中形成复合制品的方法。 该方法包括以下步骤:在模具中提供纤维预成型件,将基质树脂注入模具中,使基质树脂浸渍纤维预制件,并将树脂浸渍的预成型件加热到至少约200°F足够的时间 产生至少部分固化的固体物品。 基体树脂包括1)选自酚醛清漆环氧树脂,脂环族环氧树脂及其混合物的液体环氧树脂组分; 2)环氧稀释剂; 和3)至少一种潜在固化剂,其仅在经受至少约200°F的温度时固化。部分固化的固体制品可以进行后固化操作以产生最终的复合制品。 本发明还涉及在真空辅助树脂转移模具系统中形成复合制品的方法。