Epoxy resin composition, cured product, fiber-reinforced composite material, fiber-reinforced resin molded article, and manufacturing method thereof
A technology of epoxy resin and composition, applied in the field of epoxy resin composition, can solve the problems of insufficient heat resistance of cured products, difficult to obtain thermosetting resin with mechanical strength, heat resistance and moisture and heat resistance characteristics, etc., and achieve excellent mechanical strength Effect
Active Publication Date: 2019-01-15
DIC CORP
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the epoxy resin composition provided in the aforementioned Patent Document 2 has a problem that the heat resistance of the obtained cured product is insufficient.
[0009] That is, it is difficult to obtain a thermosetting resin that has a low viscosity and exhibits excellent mechanical strength, heat resistance, and heat-and-moisture resistance in a cured product.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1～10、 and comparative example 1～2
[0144] Put epoxy resin, acid anhydride, polyol compound, curing accelerator, acid-modified polybutadiene, and polyethersulfone resin into the kettle according to the formula shown in Tables 1-2 below, and stir to homogenize. In this way, the epoxy resin compositions of Examples 1-10 and Comparative Examples 1-2 were obtained. In addition, the polyether sulfone resin used previously heat-dissolved in acid anhydride at 110 degreeC for 5 hours, and cooled. Next, the epoxy resin composition obtained above was poured into the processed template so as to have a thickness suitable for the evaluation items, and molded at 160° C. for 10 minutes to obtain a cured product.
[0145] The epoxy resins, acid anhydrides, polyol compounds, curing accelerators, and other compounds used in combination used in Examples and Comparative Examples are as follows.
[0146] epoxy resin (a)
[0147] · a-1-1: Triphenylmethane-type epoxy resin EPICLON EXA-7250 (manufactured by DIC Corporation, average n...
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
| Property | Measurement | Unit |
|---|---|---|
| viscosity | aaaaa | aaaaa |
| viscosity | aaaaa | aaaaa |
| boiling point | aaaaa | aaaaa |
Login to View More
Abstract
To provide an epoxy resin composition having a low viscosity and the resulting cured product exhibiting excellent mechanical strength, heat resistance, and heat-and-moisture resistance, a cured product having the above properties, a fiber-reinforced composite material, a fiber-reinforced resin molded product, and a fiber-reinforced A method of manufacturing a resin molded product. Specifically, an epoxy resin composition, a cured product thereof, and a fiber-reinforced composite material using the same, a fiber-reinforced resin molded article, and a method for producing a fiber-reinforced resin molded article are provided. The characteristics of the epoxy resin composition are In that, it has: epoxy resin (a), which is epoxy resin (a-1) or alicyclic epoxy resin (a-2) with an average number of functional groups of 2.3 or more; acid anhydride (b); having 2 in the molecule a polyol compound (c) having at least one alcoholic hydroxyl group and having a hydroxyl equivalent weight of 30 g / eq to 650 g / eq; and a curing accelerator (d).
Description
technical field [0001] The present invention relates to an epoxy resin composition having a low viscosity and the resulting cured product exhibits excellent mechanical strength, heat resistance, and heat-and-moisture resistance, a cured product having the aforementioned properties, a fiber-reinforced composite material, a fiber-reinforced resin molded article, and A method of manufacturing a fiber-reinforced resin molded article. Background technique [0002] Fiber-reinforced resin molded products reinforced with reinforcing fibers are attracting attention for their light weight and excellent mechanical strength, and are widely used in various structural applications such as automobile and aircraft casings and various components. [0003] Fiber-reinforced resin molded products can be produced by applying molding methods such as fiber winding method, press molding method, hand coating method, pultrusion molding method, and RTM method to fiber-reinforced composite materials. ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K5/053C08K5/1539C08K5/3445C08L23/26C08L71/02C08L81/06
CPCC08K5/053C08K5/1539C08K5/3445C08L23/26C08L63/00C08L71/02C08L81/06C08G59/245C08G59/3227C08G59/42C08J5/04
Inventor 小林厚子松井茂树谷井翔太河崎显人森永邦裕木村真实林弘司
Owner DIC CORP