A kind of propeller with carbon fiber-porous nylon composite structure and its preparation method
A composite structure, carbon fiber technology, used in rotating propellers, chemical instruments and methods, rotary thrusters, etc., to achieve the effects of weight reduction, improved impact resistance, and wide application prospects
Active Publication Date: 2020-06-02
DALIAN JIAOTONG UNIVERSITY
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- Description
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Problems solved by technology
The invention mainly utilizes the carbon fiber-porous nylon composite multi-layer structure to prepare the propeller blade inside the aluminum alloy abrasive tool, which reduces the overall weight and enhances its toughness, thereby effectively solving the problem of high-speed rotation and impact resistance
Method used
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Embodiment 1
[0032] The present invention also discloses a method for preparing the above propeller with carbon fiber-porous nylon composite structure, comprising the following steps:
[0033] S1. Apply epoxy resin impregnating glue: cut the porous nylon mesh to the preset size, apply the mixture of epoxy resin and curing agent to the porous nylon mesh, wait for the epoxy resin to cure to obtain porous nylon-epoxy resin Composite layer;
[0034] S2. Lamination and mold fixing: After the epoxy resin impregnating glue on the porous nylon mesh is cured for 12 hours, the carbon fiber prepreg is coated on the outside of the porous nylon-epoxy resin composite layer, and the surface of the propeller is paved as a whole. Layer, covering 3-4 layers; then choose aluminum alloy material as the mold material of the part, apply a layer of demoulding machine to the aluminum alloy mold, put the overall structure after layering into the mold and press it;
[0035] S3. Heating prepreg and curing: Put the ...
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Abstract
The invention provides a propeller with a carbon fiber-porous nylon composite structure. The propeller is structurally characterized in that the following layer structures are additionally arranged from inside to outside of the propeller successively: a porous nylon-epoxy resin composite layer, a carbon fiber-epoxy resin composite layer and a carbon fiber surface glue layer, wherein the porous nylon-epoxy resin composite layer is obtained by coating a mixture of epoxy resin and a curing agent to the surface of porous nylon screen cloth sheared to a preset dimension to be cured; the carbon fiber-epoxy resin composite layer is obtained by coating a carbon fiber prepreg to the outer part of the porous nylon-epoxy resin composite layer to integrally pave the propeller and putting the paved integral structure in a mold to heat and cure the carbon fiber prepreg; and the carbon fiber surface glue layer is arranged on the surface of the ground and polished carbon fiber-epoxy resin composite layer. The invention also discloses a preparation method of the propeller with the carbon fiber-porous nylon composite structure. According to the structure provided by the invention, the impact performance is improved obviously and the weight is greatly reduced. The propeller with the carbon fiber-porous nylon composite structure has a wide application prospect in the field of unmanned aerial vehicles and the like.
Description
technical field [0001] The invention relates to a power device, in particular to a propeller with a carbon fiber-porous nylon composite structure and a preparation method thereof. Background technique [0002] The propeller is a kind of power device, relying on the rotation of the blades, it can convert the power of the generator into the driving force. The propeller is made of carbon fiber composite material, which has the advantages of light weight, high strength, low rotation noise, good toughness, and strong Corrosion resistance. Carbon fiber propellers have been widely used, from drones to other related fields, and the life of propellers has also been greatly improved. [0003] At present, most of the methods for preparing carbon fiber propellers are vacuum heating molding method integrated molding technology, but this kind of method has insufficient impact resistance and high brittleness of carbon fiber propellers. And other issues. The utility model patent (publica...
Claims
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IPC IPC(8): B32B9/00B32B27/34B32B3/24B32B9/04B32B27/02B32B27/12B32B33/00B32B37/06B32B37/10B32B38/00B63H1/26
CPCB32B3/266B32B5/02B32B5/26B32B9/047B32B27/12B32B33/00B32B37/06B32B37/1018B32B38/00B32B2255/02B32B2255/26B32B2262/0269B63H1/26
Inventor 刘向梁瑶武素梅
Owner DALIAN JIAOTONG UNIVERSITY