摘要:
A resin composition for fiber-reinforced plastic (FRP) having a good balance between stability and curability and capable of producing FRP with improved strength. The composition contains (A) an epoxy resin, (B) an acid anhydride, and (C) a catalyst that is liquid at 25°C. The catalyst (C) is at least one member selected from the group consisting of (c1) a compound composed of an acid and a base and (c2) a compound composed of a quaternary onium cation and an anion.
摘要:
The present invention provides a resin composition for a fiber-reinforced plastic, the resin composition including a cyanate ester (A), an epoxy resin (B), and an aromatic amine-based curing agent that is liquid at 25°C (C), wherein the average number of cyanate groups in the cyanate ester (A) is 2.1 or greater, and/or the average number of epoxy groups in the epoxy resin (B) is 2.1 or greater. A fiber-reinforced plastic that is produced using this composition and a reinforcing fiber has favorable heat resistance and excellent tensile and bending properties, and therefore can be applied to a wide variety of fields including transport vehicles such as ships, automobiles, and aircrafts, sporting goods, building materials such as sinks and window frames, as well as industrial machinery and materials such as high-pressure gas tanks and blades for wind power generation.
摘要:
The present invention is an aqueous polyurethane resin composition for a flame retardant coated material comprised of an aqueous dispersion of a polyurethane resin obtained by extending a chain of an urethane prepolymer in an aqueous dispersion. The aqueous dispersion of the urethane prepolymer is obtained by reacting (a) a polyisocyanate component with (b) a polyol component which contains a phosphorus-containing polyol compound represented by the following general formula (1) as an essential component then dispersed the obtained prepolymer in the water,wherein a unit corresponding to the compound represented by the said general formula (1) is contained so that the phosphorus content in the urethane resin solid is 0.3 to 5.0 mass percent; R 1 in the formula (1) represents an alkylene group having 2 to 4 carbon atoms, and m and n represent a number from 1 to 10.
摘要:
Provided is a resin composition that is capable of producing a cured product having excellent environmental suitability, high strength, and excellent flame retardancy, and that is suitably usable as a matrix resin for fiber-reinforced plastics. A resin composition contains (A) an epoxy resin, (B) a cyanate resin, (C) an aromatic amine curing agent that is liquid at 25°C, and (D) a phosphorus-containing compound represented by formula (1). Preferably, in formula (1), R 1 and R 2 each independently represent an alkyl group or an aryl group, and X and Y are an oxygen atom.
摘要:
A resin composition for fiber reinforced plastic which is a resin composition comprising an epoxy resin (A), a cyanate resin (B) and a liquid aromatic amine curing agent (C), and, as necessary, further an active energy radiation absorbable component (D), wherein 20 to 100 percent by mass of the aforementioned epoxy resin (A) is an epoxy compound expressed by the following general formula (1), a cured product obtained by curing a composition containing said resin composition and a high-strength fiber-reinforced plastic;
wherein (a) and (b) each independently express an integer from 2 to 10, (c) expresses an integer from 0 to 3, R 1 and R 2 each independently express a bivalent hydrocarbon group having 2 to 5 carbon atoms, and R 3 expresses a single bond, a methylene group or -C(CH 3 ) 2 -.