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A kind of composite material board, preparation method and application

A composite material board and composite board technology, applied in chemical instruments and methods, synthetic resin layered products, lamination, etc., to achieve the effects of short production cycle, low curing temperature, and simple combination process

Inactive Publication Date: 2015-11-18
蓝星环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are currently no reports on fiber composites containing polydicyclopentadiene layers

Method used

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  • A kind of composite material board, preparation method and application
  • A kind of composite material board, preparation method and application
  • A kind of composite material board, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Lay 5 layers of glass fiber plain weave cloth on the mold of VARTM with 0 / 90 ° cross, then lay a layer of 30mm thick Balsa wood core material to form sandwich layer 4; Lay 5 layers of glass fiber plain weave cloth again, After laying, the fabric is sewn closed along the perimeter. Finally, lay the guide fabric (such as plastic film guide cloth) and vacuum film, seal the joint between the mold and the vacuum film, vacuumize until the vacuum degree reaches 0.1Mpa, and then introduce the epoxy resin JL-236 mixture containing curing agent and additives (Changshu Jiafa Co., Ltd.), make the epoxy resin glue completely impregnate the fiber layer to form a skin layer 3, finally fill the inside of the mold, and form a 0.5mm thick rubber-rich layer 2 outside the skin layer to control the fiber content of the skin layer 50%, heated to 80°C for curing and molding.

[0054] (2) Put the solidified sandwich structure plate in step (1) into the middle of the polydicyclopentadiene ...

Embodiment 2

[0056] Mix polydicyclopentadiene reaction raw material A and reaction raw material B components uniformly in a ratio of 1:1, inject them into the polydicyclopentadiene shell mold through the injection head, and control the mold temperature at 80°C to 85°C. After the curing is completed, take out the polydicyclopentadiene shell 1. The thickness of the shell is 7 mm. There is a concave structure on the inner wall of the shell. The concave structure is a plurality of evenly distributed groove-like structures. The shell is placed on a vacuum-assisted resin transfer molding mold; 5 layers of glass fiber plain weave are cross-laid on the shell at 0 / 90°, and then a layer of 30mm thick lightweight paulownia wood core material is laid to form a sandwich Layer 4: Lay 5 layers of glass fiber plain weave cloth again, and glue and seal the fabric along the periphery after laying. Finally, lay the diversion fabric and vacuum film on the glass fiber plain cloth, seal the joint between the mo...

Embodiment 3

[0058] (1) Using a three-dimensional weaving method to weave a strip-shaped carbon fiber fabric with an "I"-shaped cross section as the reinforcing rib 5, and the upper and lower "one"-shaped transverse structures are respectively composed of two carbon fiber plain weave fabrics.

[0059] (2) Lay 6 layers of carbon fiber plain weave cloth on the RTM mold at 0 / 90° cross-laying. At the position where the reinforcing ribs are laid, only the top two layers and the bottom two layers of carbon fiber plain weave are laid on the fiber reinforced layer, and then the reinforcing ribs are laid. Place the carbon fiber plain weave cloth with "work" type reinforcement at the position, and use it as a part of the skin layer, and then lay a 30mm thick paulownia wood core material in the middle of the reinforcement to form the sandwich layer 4; lay 6 layers of carbon fiber plain weave again, and Lay the overlapping carbon fiber plain cloth of the other transverse plane of the "I" type reinforce...

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Abstract

The invention relates to a composite material plate. The composite material plate comprises a sandwich layer, two covering layers coating the outer surface of the sandwich layer, and a polydicyclopentadiene layer arranged on the outer surface of at least one of the covering layers. The invention also relates to a preparation method and a use of the composite material plate. According to the composite material plate, outside of a fiber reinforced material is coated by the polydicyclopentadiene layer, so that the problem that a conventional fiber reinforced resin-based composite material is easily suffered from layering failure and is poor in abrasive resistance when being subjected to an impact load is solved. The composite material plate can be widely applied to loading or load-bearing components on mine, railway and road transportation heavy vehicles and goods hoppers. The composite material plate material can be obtained through a reaction injection molding process combined with a vacuum auxiliary molding process, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a composite material board and a preparation method thereof, in particular to an impact-resistant and wear-resistant fiber-reinforced composite board, a preparation method and application thereof. Background technique [0002] Fiber reinforced composites have been widely used in engineering fields due to their high specific strength and specific stiffness. However, such composite materials are sensitive to impact loads, and the most fatal damage in use is often caused by impact. When the impact velocity is high, the composite laminate will be penetrated, while when the impact velocity is reduced, different failure modes will occur, such as matrix cracking, fiber breakage and delamination. Therefore, the greatest threat to the safety of reinforced composite structures is impact damage, which is the main research object of composite material damage. [0003] The damage of most composite materials is not caused all at once, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/04B32B27/12B32B27/32B32B37/10
Inventor 孟秀青田宇黎高磊汪文虎
Owner 蓝星环境工程有限公司
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