申请人:AMOCO CORPORATION
公开号:EP0178762A2
公开(公告)日:1986-04-23
A composite, such as a pre-preg or a laminate of layers of such a pre-preg, comprising thermally stable continuous fibres, especially carbon or graphite fibres, optionally sized with amide-imide polymer, and a resin matrix comprising
(I) an amide-imide copolymer comprising recurring A' units of
and B' units of
wherein the free carboxyl groups are ortho to one amide group, Z is a trivalent benzene ring or lower-alkyl-substituted trivalent benzene ring, R1 and R2 are different and are divalent aromatic hydrocarbon radicals of from about 6 to about 10 carbon atoms or two divalent aromatic hydrocarbon radicals of from about 6 to about 10 carbon atoms joined directly or by stable linkages selected from the group consisting of -0-, methylene, -CO-, -SO2-, and -S-radicals, alone or in combination with
(II) an amide-imide-phthalamide copolymer comprising units of:
and
and
where R5 is the same as R1 and as R4, X is a divalent aromatic radical and Z is a trivalent benzene ring or lower-alkyl-substituted derivative thereof and R3 and R4 are different and may each be chosen from the choices given for R, and R2,
and optionally (III) a polyetherimide; and wherein optionally at least some of the free carboxylic acid groups in the repeating units are condensed with amide groups in the ortho position thereto to form imide groups.
一种复合材料,如预浸料或由这种预浸料组成的层压板,包括热稳定的连续纤维,特别是碳纤维或石墨纤维,可选择使用酰胺酰亚胺聚合物,以及树脂基质,其中树脂基质包括
(I) 一种酰胺-酰亚胺共聚物,由以下物质的重复 A'单元和 B'单元组成
和 B'单元
其中游离羧基正交于一个酰胺基,Z 是三价苯环或低级烷基取代的三价苯环,R1 和 R2 不同,是约 6 至约 10 个碳原子的二价芳香烃基,或两个约 6 至约 10 个碳原子的二价芳香烃基,直接连接或通过选自-0-、亚甲基、-CO-、-SO2-和-S-自由基组成的组的稳定连接,单独或与之结合。
(II) 由以下单元组成的酰胺-酰亚胺-邻苯二甲酰胺共聚物
和
和
其中 R5 与 R1 和 R4 相同,X 为二价芳香基,Z 为三价苯环或其低级烷基取代的衍生物,R3 和 R4 不同,可分别从 R 和 R2 的给定选项中选择、
和任选的(III)聚醚酰亚胺;和其中任选的至少一些重复单元中的游离羧酸基团与其正交位置上的酰胺基团缩合形成酰亚胺基团。