An anti-sag and anti-crystallization wind power grade hand lay-up resin system and its preparation method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An anti-crystallization and anti-sag technology, applied in the fields of chemical industry and composite materials, to achieve the effect of excellent heat resistance of the cured product, avoiding instability and eliminating the tendency of crystallization
Active Publication Date: 2017-09-19
上海康达新材料科技有限公司
View PDF5 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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 environment crystallinity and construction convenience, and Collaboratively solve the problems of curing speed and production efficiency, curing degree and temperature changes, and minimize the influence of artificial factors and temperature changes to a lower level
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
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.
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
epoxy equivalent
aaaaa
aaaaa
amine value
aaaaa
aaaaa
Login to view more
Abstract
The invention discloses an anti-sagging and anti-crystallization wind power grade hand lay-up resin system and a preparation method thereof. The hand lay-up resin system is prepared by mixing compounded epoxy resin component A and denatured curing agent component B. The compounded epoxy resin component A is prepared from bisphenol A epoxy resin, heat-resistant novolac epoxy resin, flexible epoxy resin, reactive diluent, and non-reactive diluent; the denatured curing Agent component B is prepared from synthetic alicyclic amines, amidoamines, fatty amines, cashew nut shell oil modified phenalkamines, accelerators, rheological additives, and dyes. The anti-sagging and anti-crystallization properties of the present invention are significantly enhanced, excellent in wettability to fibers, relatively less affected by the working environment, and the cured product has excellent comprehensive properties such as mechanical properties, toughness, heat resistance and water resistance, which can meet Practical requirements for hand lay-up and repair of various composite materials, especially suitable for large-area high-strength composite materials such as wind power blades.
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
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more