Anti-sagging and anti-crystallizing wind power hand lay-up resin system and preparation method thereof
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An anti-crystallization and anti-sag technology, used in the chemical and composite fields to achieve excellent heat resistance of cured products, eliminate sagging or dripping, and enhance tolerance.
Active Publication Date: 2015-06-24
上海康达新材料科技有限公司
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Problems solved by technology
[0006] One of the technical problems to be solved by the present invention is to provide an anti-sag and anti-crystallization wind power grade hand lay-up resin system to overcome the contradiction between anti-sag viscosity and fiber wetting ability, low-temperature
Method used
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Embodiment 1
[0051] Epoxy resin component A raw material parts by weight:
[0052]
[0053]
[0054] Synthetic alicyclic amine raw material parts by weight:
[0055]
[0056] Curing agent component B raw material parts by weight:
[0057]
[0058] Preparation:
[0059] Preparation of epoxy resin component A:
[0060] According to the weight percentage of raw materials, add bisphenol A epoxy resin, heat-resistant novolac epoxy resin, flexible epoxy resin, and reactive diluent into the reactor in advance, raise the temperature to 60°C-70°C, and stir and mix at a constant temperature 2-4h; then cool down to below 40°C, add the non-reactive diluent into the reactor, and continue to stir and mix for 2-4h; then turn off the stirring to prepare epoxy resin component A, and store it in a sealable container at room temperature.
[0061] The preparation of synthetic cycloaliphatic amine:
[0062] According to the weight percentage of raw materials, add isophoronediamine, N-aminoethyl...
Embodiment 2
[0069] Epoxy resin component A raw material parts by weight:
[0070]
[0071] Synthetic alicyclic amine raw material parts by weight:
[0072]
[0073] Curing agent component B raw material parts by weight:
[0074]
[0075] The mixing weight ratio of epoxy resin component A and curing agent component B is 100:34.
Embodiment 3
[0077] Epoxy resin component A raw material parts by weight:
[0078]
[0079] Synthetic alicyclic amine raw material parts by weight:
[0080]
[0081] Curing agent component B raw material parts by weight:
[0082]
[0083] The mixing weight ratio of epoxy resin component A and curing agent component B is 100:36.
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Abstract
The invention discloses an anti-sagging and anti-crystallizing wind power hand lay-up resin system and a preparation method thereof. The hand lay-up resin system is a mixture of a compounded epoxy resin component A and a denatured curing agent component B, wherein the compounded epoxy resin component A is prepared from epoxy resin, heat-resisting novolac epoxy resin, flexible epoxy resin, active diluent and a non-activated diluent; the denatured curing agent component B is prepared from synthetic alicyclic amine, acylamino amine, aliphatic amine, cashew nut shell oil modified phenolic aldehyde amine, an accelerant, a rheological agent and a dye. The anti-sagging and the anti-crystallizing properties are obviously enhanced, the fiber wettability for fibers is excellent, the influence from the working environment is low, the comprehensive performances such as the mechanical property, the toughness, the heat resistance and the water resistance of the curing product are excellent, the practical requirement of various compound materials for hand lay-up manufacture and repair can be met, and particularly the product is suitable for being used in the large-area high-strength compound materials such as a wind power blade.
Description
technical field [0001] The invention relates to the technical fields of chemical engineering and composite materials, in particular to a hand-lay-up resin system for composite material molding and repairing and a preparation method thereof, in particular to an anti-sag and anti-crystallization wind power-grade hand-lay-up resin system and a preparation method thereof . Background technique [0002] The hand lay-up process is one of the mainstream traditional methods for manufacturing composite materials. The principle of the process is to use the hand lay-up resin system to impregnate the fiber braiding layer, then lay the layers and press them together. After the impregnated resin system is cured, a composite is formed. Material matrix. Although it seems that the hand lay-up process is prone to process hidden dangers and quality problems, it is still widely used. Even in the preparation of large-scale advanced composite materials such as MW-level wind power blades, this pr...
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
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Application Information
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