摘要:
A continuous reinforcing fiber sheet in which reinforcing fibers are arranged at an arbitrary angle to the main axis. The continuous reinforcing fiber sheet is well applicable to pultrusion forming without the risk of the reinforcing fibers being dispersed. This permits use of the continuous reinforcing fiber sheet in a long fiber-reinforced plastic structural member having remarkably improved torsional rigidity. The continuous reinforcing fiber sheet 1 has a continuous resin-penetrable support sheet 2 and a reinforcing fiber layer 3 held by the resin-penetrable support sheet 2. Long reinforcing fibers 4 in the reinforcing fiber layer 3 have substantially a certain length (F) and are arranged in the longitudinal direction of the resin-penetrable support sheet 2 at a prescribed angle (&agr;) to the longitudinal direction of the resin-penetrable support sheet 2.
摘要:
This invention relates to fiber-reinforced composite resin pultrusion products of circular and noncircular cross-sectional contours, manufactured by impregnating fiber tows or rovings with a resin, drawing them into a die, and forming them into an article of predetermined size and shape, and then curing it, and relates also to a method for manufacturing the same.
摘要:
An elongated lightweight fiber reinforced composite resin pultrusion-formed piece with a rectangular structural shape has an elongated light honeycomb structure body with a rectangular sectional shape and at least one fiber reinforced resin layer formed to cover at least a portion of the outer peripheral surface of the lightweight honeycomb structure body. The fiber reinforced resin layer comprises an axial fiber layer formed by aligning reinforcing fibers parallel to the longitudinal axis of the lightweight honeycomb structure body.
摘要:
A new thermosetting resin composition is disclosed which comprises a Bisphenol A-type epoxy resin having a number average molecular weight of smaller than 650 but not smaller than 450 and a ratio of the weight average molecular weight thereof to the number average molecular weight thereof of in the range of 1.3-3.0; and a curing agent capable of cross-linking the epoxy resin. The curing agent is preferably a compound represented by the following general formula: ##STR1## wherein X is --CR.sub.1 R.sub.2 --, --CO--, --COO--, --SO.sub.2 --, --SO--, --S--, --O--, --NR.sub.1 --, --SiR.sub.1 R.sub.2 -- or --POR.sub.1 -- where R.sub.1 and R.sub.2 each stands for hydrogen, a lower alkyl or a phenyl; Y and Y' each stands for hydrogen, a lower alkyl or an electron attractive group; R is a lower alkyl; and m and n each is an integer of 1-4, or a mixture thereof with a primary amine, a phenolic compound or an acid anhydride.
摘要翻译:公开了一种新的热固性树脂组合物,其包含数均分子量小于650但不小于450的双酚A型环氧树脂,其重均分子量与其数均分子量的比例 范围1.3-3.0; 和能够交联环氧树脂的固化剂。 固化剂优选为由以下通式表示的化合物:其中X为-CR 1 R 2 - , - CO - , - COO - , - SO 2 - , - SO - , - S - , - O - , - NR 1 - ,-SiR1R2-或-POR1-,其中R1和R2各自表示氢,低级烷基或苯基; Y和Y'各自代表氢,低级烷基或吸电子基团; R是低级烷基; m和n各自为1-4的整数,或其与伯胺,酚类化合物或酸酐的混合物。
摘要:
A new thermocurable composition is disclosed which comprises a Bisphenol A-type epoxy resin having a number average molecular weight of 650-1300, 10-40% by weight of the Bisphenol A-type epoxy resin having an epoxy equivalent of 180-195; and a curing agent capable of cross-linking the epoxy resin. The curing agent is preferably a compound represented by the following general formula: ##STR1## wherein X is --CR.sub.1 R.sub.2 --, --CO--, --COO--, --SO.sub.2 --, --SO--, --S--, --O--, --NR.sub.1 --, --SiR.sub.1 R.sub.2 -- or --POR.sub.1 -- where R.sub.1 and R.sub.2 each stands for hydrogen, a lower alkyl or a phenyl; Y and Y' each stands for hydrogen, a lower alkyl or an electron attractive group; R is a lower alkyl; and m and n each is an integer of 1-4, or a mixture thereof with a primary amine, a phenolic compound or an acid anhydride.
摘要翻译:公开了一种新的耐热组合物,其包含数均分子量为650-1300的双酚A型环氧树脂,10-40重量%的环氧当量为180-195的双酚A型环氧树脂; 和能够交联环氧树脂的固化剂。 固化剂优选为由以下通式表示的化合物:其中X为-CR 1 R 2 - , - CO - , - COO - , - SO 2 - , - SO - , - S - , - O - , - NR 1 - ,-SiR1R2-或-POR1-,其中R1和R2各自表示氢,低级烷基或苯基; Y和Y'各自代表氢,低级烷基或吸电子基团; R是低级烷基; m和n各自为1-4的整数,或其与伯胺,酚类化合物或酸酐的混合物。
摘要:
A flexible unidirectional glass prepreg comprising glass rovings having a thickness of 50 to 150 .mu.m and formed of glass fiber monofilaments having a diameter of 10 to 20 .mu.m and a matrix resin impregnated between the fiber monofilaments.
摘要:
A two component-type curing agent composition is disclosed which comprises a first curing agent which is capable of cross-linking an epoxy resin and which is at least one member selected from primary amines, phenolic compounds and acid anhydrides, and a second curing agent which is at least one compounds represented by the following general formula: ##STR1## wherein X is --CR.sub.1 R.sub.2 --, --CO--, --COO--, --SO.sub.2 --, --SO--, --S--, --O--, --NR.sub.1 --, --SiR.sub.1 R.sub.2 -- or --POR.sub.1 -- where R.sub.1 and R.sub.2 each stands for hydrogen, a lower alkyl or a phenyl; Y and Y' each stands for hydrogen, a lower alkyl or an electron attracting group; R is a lower alkyl; and m and n each is an integer of 1-4.