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Film material for thermosetting resin molding and molded product thereof

A technology of resin molding and film materials, applied in the direction of synthetic resin layered products, layered products, metal layered products, etc., can solve the adverse effects on the health of workers, defects at the seams of molded products, and affect the mechanical properties of molded products To achieve the effect of improving material durability and mechanical properties, reducing surface grinding and easy operation

Pending Publication Date: 2021-01-19
TORAY ADVANCED MATERIALS RES LAB CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the joints at the joints are not treated in any way, the molded product will have defects at the seams, which will not only affect the appearance of the product, but may also affect the mechanical properties of the molded product
In the prior art, for the above problem 2, the preparatory work in the later painting process (blade shape trimming, blade surface roughening, primer coating) is generally done manually, and the accuracy is difficult to guarantee, so the grinding efficiency is relatively low
In addition, a large amount of dust from grinding and a large amount of organic solvents from primer coating will have adverse effects on the health of workers
In order to improve the above problems, as an existing technology, a robot grinding production line can be cited. Although the grinding efficiency can be improved to a certain extent, this technology still cannot overcome the shortcomings of a large amount of dust and organic solvents.

Method used

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  • Film material for thermosetting resin molding and molded product thereof
  • Film material for thermosetting resin molding and molded product thereof
  • Film material for thermosetting resin molding and molded product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-12

[0093] According to the composition shown in Table 1, use the 170222 series wet film preparation device produced by Shanghai Modern Environmental Engineering to apply the stock solution of the second layer on one side of the first layer, and then cure it under the curing conditions of the second layer used. To obtain the second layer with a thickness of 100 μm, use the MRK-65 model laminating machine produced by MCK Company, set the laminating roller speed of the laminating machine to 15rpm, and coat the third layer on the surface of the second layer, and the edge of the third layer flush with the second layer. Wherein, in embodiment 1-3, the second layer is arranged on the non-release surface of A1; in embodiment 4-6, the second layer is arranged on the release surface of A1; in embodiment 7-9, the second The layer was placed on the self-adhesive surface of A2; in Examples 10-12, the second layer was placed on either side of A3.

[0094] Various performance tests were carrie...

Embodiment 13-19

[0096] According to the composition shown in Table 2, use the 170222 series wet film preparation device produced by Shanghai Modern Environmental Engineering Co., Ltd. to apply the stock solution of the second layer on the release surface of A1, and then cure it under the curing conditions of the second layer used to obtain For the second layer with a thickness of 100 μm, use the MRK-65 model laminating machine produced by MCK Company, set the laminating roller speed of the laminating machine to 15rpm, and coat the third layer of different materials on the surface of the second layer. The edge of the layer is flush with the second layer.

[0097] Various performance tests were carried out on the obtained samples, and the results are listed in Table 2.

Embodiment 20-21

[0099] According to the composition shown in Table 3, use the 170222 series wet film preparation device produced by Shanghai Modern Environmental Engineering to apply the stock solution of the adhesive layer on the non-self-adhesive surface of A2, and then cure it under the curing conditions of the adhesive layer used to obtain Adhesive layer with a thickness of 5 μm.

[0100] Then, according to the composition shown in Table 3, use the 170222 series wet film preparation device produced by Shanghai Modern Environmental Engineering to coat the stock solution of the second layer on the other side of the first layer, and then use the curing conditions of the second layer Curing at the bottom to obtain a second layer with a thickness of 100 μm. Use the MRK-65 model laminating machine produced by MCK Company, set the laminating roller speed of the laminating machine to 15rpm, and coat the third layer on the surface of the second layer. The edge of the third layer is flush with the ...

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Abstract

The invention provides a film material for thermosetting resin molding, wherein the film material at least comprises a first layer, a second layer and a third layer, an interface having a peel strength of 0.02-30 N / cm exists between the first layer and the second layer at the temperature of 23 DEG C, and the third layer is a porous body. The film material for thermosetting resin molding has the characteristics that the operation is easy, the removal is easy, the size precision of the surface of a mold is not damaged, the film material functional layer is transferred to the surface of thermosetting resin after the thermosetting resin is molded, the surface of a film joint is flat and free of concave and convex, and a molded product is endowed with functionality. The problems of volatilization of an organic solvent caused by use of a liquid release agent, high dust generation and polishing technical difficulty caused by subsequent molded body surface polishing, difficulty in ensuring design precision after repeated use of the mold and the like can be solved.

Description

technical field [0001] The invention belongs to the field of macromolecular materials and relates to a film material for thermosetting resin molding. Background technique [0002] As a kind of large shaped body, wind turbine blades generally have a complex structure and require high mechanical properties. With the innovation of technology, the enlargement of blades has become an inevitable trend, which affects the shape and size of blades. Accuracy puts forward higher requirements. The molding process of the blade basically adopts vacuum infusion molding: the raw materials such as thermosetting resin and curing agent are vacuum poured into the set mold and heated to make it solidified and molded, and then the mold is removed. In order to ensure the dimensional accuracy of molded products, in the specific implementation process, there are certain requirements for the performance of the resin itself, the surface state of the mold, and the processing conditions. The technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/06B32B27/12B32B17/10B32B9/04B32B15/08B32B9/00B32B7/12B32B29/00B32B27/10B32B3/04B32B3/24F03D80/00
CPCB32B27/08B32B27/06B32B27/12B32B17/10B32B9/045B32B15/08B32B5/02B32B7/12B32B29/002B32B27/10B32B3/04B32B3/266F03D80/00F05B2240/301B32B2262/106B32B2250/03Y02E10/72
Inventor 范博文桂宗彦荒井崇苏海晖
Owner TORAY ADVANCED MATERIALS RES LAB CHINA
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