Benzoxazine resin composition, prepreg and fiber reinforced composite
A resin composition, benzoxazine technology, applied in the field of benzoxazine resin composition, prepreg and fiber reinforced composite materials, carbon fiber reinforced composite materials, can solve low solubility, insufficient drapability, drapability Poor and other issues
Inactive Publication Date: 2016-12-07
TORAY IND INC
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Also using benzoxazine resins, studies on blending tougheners such as thermoplastic resins and thermoplastic elastomers have been conducted, but the solubility of these tougheners in benzoxazine resins is low enough to improve tensile strength There have been problems with the amount of blending
Additionally, incorporation of tougheners will increase viscosity and has been problematic with processing and handling during prepreg manufacture, as well as poor tack and drapability when used in prepregs. good question
[0010] Although polyfunctional phenols have been used as curing agents together with epoxy resins in the prior art (for example, see JP-2012-36347-A), when used as prepregs, due to the resulting benzene The viscosity of the oxazine resin composition increases, but there are problems of insufficient tackiness and insufficient drapability
Method used
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Embodiment
[0155] In the following examples, the benzoxazine resin composition of the present invention and a prepreg and a fiber-reinforced composite material using the same are described in more detail. Hereinafter, methods for producing resin raw materials, prepregs, and fiber-reinforced composite materials used in the present invention, methods for evaluating open-hole compressive strength, and methods for evaluating tensile strength are described. Unless otherwise specified, in the examples, the fabrication and evaluation of the prepregs were carried out under an atmosphere of room temperature (25°C±2°C) and a relative humidity of 50%.
[0156] carbon fiber
[0157] T800S-24K-10E (carbon fiber having 24,000 filaments, tensile strength 5.9 GPa, tensile modulus 294 GPa, tensile strain 2.0%, manufactured by Toray Carbon Fibers America, Inc.).
[0158] Benzoxazine resin
[0159] F-a (bisphenol F-aniline type, manufactured by Shikoku Chemicals Corp.).
[0160] P-d (phenol-diaminodip...
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Abstract
Embodiments herein relate to benzoxazine resin compositions, prepregs, and carbon fiber reinforced composites. More specifically, embodiments herein relate to benzoxazine resin compositions that have excellent mechanical strength in extreme use environments such as high temperature and high humidity environments, and thus provide suitable Carbon fiber reinforced composite materials for use as manufacturing materials, embodiments herein also relate to prepregs and carbon fiber reinforced composite materials. One embodiment comprises a benzoxazine resin composition having a multifunctional benzoxazine resin; liquid at 40°C and having three or more glycidols sulfonate; and optionally at least one thermoplastic resin. The resin may include an interpenetrating network structure after curing.
Description
[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application No. 61 / 664,803, filed June 27, 2012, U.S. Provisional Application No. 61 / 681,834, filed August 10, 2012, and U.S. Provisional Application No. 61 / 681,834, filed May 20, 2013. 61 / 825,259, which are incorporated herein by reference. technical field [0003] The present invention relates to benzoxazine resin compositions, prepregs and fiber reinforced composite materials, such as carbon fiber reinforced composite materials. More specifically, the present invention provides a benzoxazine resin composition for fiber-reinforced composite materials, which has excellent kinetics in extreme use environments (such as high-temperature, high-humidity environments) characteristics, and has excellent mechanical properties, including but not limited to elongation and elasticity after curing, and has excellent mechanical properties when used in combination with reinforcing fibers as ...
Claims
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IPC IPC(8): C08L79/04C08L63/00C08L81/06C08L81/04C08L81/02C08K5/42C08K7/14
CPCC08K7/06C08L79/04C08L81/02C08L81/04C08L2205/14C08L2205/05C08L2205/03C08L2205/035C08L2205/02C08J2363/00C08J2381/06C08J2379/04C08J5/243C08L63/00C08L81/06C08K5/42C08K5/3435C08G73/0233C08L79/02C08L63/04C08J2377/00C08J2481/06C08L2203/12C08L2207/04
Inventor 新井厚仁J·A·萨特怀特J·C·休斯坂田宏明吉冈健一
Owner TORAY IND INC