Vacuum perfusion epoxy resin system and preparation method and application thereof

An epoxy resin, vacuum infusion technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, wind power generation, etc., can solve the problems of short operation time, fast curing speed of epoxy resin, defects of composite materials, etc., and achieve low price , The effect of high mechanical strength and low reactivity of the product

Active Publication Date: 2020-06-05
WANHUA CHEM GRP CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When producing these composite material blades over 30 meters long, the vacuum infusion resin system is required to have the characteristics of medium viscosity, long operating time, and high curing strength. At present, common infusion resin systems on the market often encounter in production. Problems of composite defects caused by fast curing speed and short operation time of epoxy resin

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vacuum perfusion epoxy resin system and preparation method and application thereof
  • Vacuum perfusion epoxy resin system and preparation method and application thereof
  • Vacuum perfusion epoxy resin system and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of vacuum infusion epoxy resin system for wind power blades, it comprises A component and B component, and described A component comprises by weight percentage: Bisphenol A type epoxy resin 70%; Epoxy diluent I (multiple Epoxy tar) 30%, epoxy thinner II0%,;

[0041] The B component includes by weight percentage: polyetheramine curing agent 50%, isophorone diamine 50%;

[0042] The components A and B are mixed in a ratio of 100:25 by weight.

[0043] Wherein, the preparation method of the system is:

[0044] Step 1, prepare component A:

[0045] Put bisphenol A epoxy resin, epoxy diluent I and epoxy diluent II into the reactor; heat the reactor to 60°C and stir at 100rpm for 30 minutes, then stop; stop heating, cool to room temperature to get the obtained product The A component;

[0046] Step 2, prepare component B:

[0047] Add polyetheramine curing agent and isophorone diamine into the reaction kettle, stir at 100rpm for 30 minutes and then stop to obtain ...

Embodiment 2～7 and comparative example 1

[0050] The preparation methods of Examples 2-7 and Comparative Example 1 are the same as those of Example 1, and will not be repeated here. The difference lies in the proportioning composition. The proportioning composition of the vacuum infusion epoxy resin system of each embodiment sees the following table:

[0051]

[0052]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a vacuum perfusion epoxy resin system as well as a preparation method and application thereof. According to the vacuum perfusion epoxy resin system, an epoxy diluent raw material comprises the polyepoxy tar containing a cyclododecane structure, and the vacuum perfusion epoxy resin system with medium or higher initial mixing viscosity, low midpoint maximum exothermic peak temperature and long operability time can be obtained. According to the vacuum perfusion epoxy resin system, the epoxy resin system is prepared by mixing a component A and a component B, wherein the component A comprises bisphenol A epoxy resin and an epoxy diluent, and the component B comprises a polyether amine curing agent and alicyclic amine. The epoxy diluent comprises the polyepoxy tar containing the cyclododecane structure, and optionally comprises other epoxy diluents.

Description

technical field [0001] The invention relates to a vacuum infusion epoxy resin formula for wind power blades, and more specifically relates to a vacuum infusion epoxy resin system for wind power blades with better infusion, super long operating time, high curing strength and temperature resistance. Background technique [0002] During the industrial production of 1,2-epoxy-5,9-cyclododecadiene (ECDD), the main by-product is the diepoxide ( DECD), triepoxy (DECD) heavy component tar, taking a 10,000-ton ECDD plant as an example, the production of multi-epoxy tar waste is ~2000t / a (that is, tons / year), and special equipment is required in the normal production process Incinerator incineration treatment. If the comprehensive utilization of epoxy tar can be effectively carried out, it can not only reduce the production cost of ECDD and the pressure of three wastes treatment, but also develop new product series by using the special structure of macrocyclic polyepoxy. [0003] Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L63/02C08G59/50
CPCC08L63/00C08G59/5026C08G59/5013C08L2201/08Y02P70/50
Inventor 付松李俊平孟祥南董洋崔纯燹张晨丛振霞黎源
Owner WANHUA CHEM GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap