Fast curing epoxy resin system for blades of wind driven generator and preparation method thereof

Abstract

The invention discloses a fast curing epoxy resin system for blades of a wind driven generator and a preparation method thereof. The fast curing epoxy resin system comprises a resin part and a curing agent part. The fast curing epoxy resin system is characterized in that the curing agent part includes a high-activity aliphatic amine curing agent, a high-activity aliphatic cyclic amine curing agent and a curing accelerating agent, and the proportion of the high-activity aliphatic amine curing agent to the high-activity aliphatic cyclic amine curing agent to the curing accelerating agent is (40-80): (10-50): (5-25) (in parts by weight). The fast curing epoxy resin system is formed by mixing the resin part with the curing agent part according to the proportion of 100: (20-40) in parts by weight. The invention greatly shortens the gel time under the condition of meeting the requirements for performance needed by the blades of the wind driven generator by adopting a method using the high-performance and high-activity amine curing agents and the curing accelerating agent in a mixing way; and the gel time of 100g of the fast curing epoxy resin system at a temperature of 23 DEG C is 10-60 minutes, thereby meeting the requirements for the application of the fast curing epoxy resin system for the blades of the wind driven generator of above a megawatt grade.

Description

technical field [0001] The invention relates to an epoxy resin composition required in industrial production and a preparation method thereof, in particular to a fast-curing epoxy resin system for wind power generator blades and a preparation method thereof, which is especially suitable for manufacturing megawatt-level Hand lay-up process and vacuum infusion process application for wind turbine blades above. Background technique [0002] Looking back at my country's wind power industry, it has been growing at a rate of doubling in recent years, and this rapid growth rate is still continuing. As the core component of wind turbines, blades have huge market potential. At the same time, the quality of blades directly affects the efficiency, life and performance of wind turbines. The blades of wind turbines are mainly made of composite materials, especially wind turbine blades above the megawatt level. The resin system for blades of composite materials is the key material for th...

AI Technical Summary

Problems solved by technology

For example, the shear beam and main spar cap of wind turbine blades are produced due to their relatively small volume and short manufacturing process time. At this time, the use of ordinary epoxy resin systems for blades will affect the production of blades due to their long gel time. The efficiency and output of the blade are no longer applicable; or when the manufacturer is located in the north or in winter, due to the low temperature, the gelation time of the ordinary epoxy resin system for blades is too long, which will affect the efficiency and output of blade production. no longer applicable

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