Composite material anti-layering composite adhesive membrane and preparation method of membrane

A composite material and anti-delamination technology, applied in the field of materials, can solve problems such as difficult control of product quality consistency, low degree of standardization of production process, serious fiber damage, etc., to improve anti-delamination ability and improve product quality consistency , improve the functional effect

Active Publication Date: 2017-04-26
GUANGDONG YATAI NEW MATERIAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned technology has the following shortcomings or deficiencies: (1) the production cost is high; (2) the damage to the fiber is more serious in the production process; (3) the standardization degree of the production process is low; (4) the quality consistency of the product is difficult to control; (5) ) longer production cycle

Method used

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  • Composite material anti-layering composite adhesive membrane and preparation method of membrane
  • Composite material anti-layering composite adhesive membrane and preparation method of membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 1: Grind the chopped carbon fiber with a length of 10-30 mm into a ground carbon fiber through a ball mill. The ground carbon fiber is a rigid needle-like body with sharp ends, and its length is between 0.1-2 mm. The degree is between 0.5 and 6 μm (microns).

[0021] Step 2: by mass fraction, with 10% ground carbon fiber, 75% thermosetting epoxy resin, 12% polyurethane TPU micropowder, 3% reaction accelerator (acid anhydride curing agent and potassium hydroxide, the quality of both The ratio is 55:45) to form a mixed material, and then placed at 70 ° C for 30 minutes of continuous heat treatment to form a mixture, which is sandwiched between the upper release film and the lower release paper, and passed through the pressure roller to form a 3mm thick The composite adhesive film is the anti-delamination composite adhesive film of the composite material. The anti-delamination composite adhesive film of composite material is torn off the upper release film and the lo...

Embodiment 2

[0028] Step 1: use a ball mill to grind the chopped glass fibers with a length of 10-30mm through a ball mill grinding process, and grind them into ground glass fibers with an average length of 0.1mm-2mm, which are characterized by sharp rigid needles at both ends, and The length is between 0.1 and 2 mm, and the fineness of the ground glass fiber is between 1 and 8 μm (micrometer).

[0029] Step 2: by mass fraction, with 15% ground carbon fiber, 65% phenolic resin, 18% modified polypropylene PP adhesive film, 2% reaction accelerator (acid anhydride curing agent and potassium hydroxide, both The mass ratio is 55:45) to form a mixed material, and then placed at 60 ° C for 30 minutes of continuous heat treatment to form a mixture, which is sandwiched between the upper release film and the lower release paper, and formed by pressing rollers The 3.5mm thick composite adhesive film is the anti-delamination composite adhesive film of the composite material. The anti-delamination com...

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Abstract

The invention discloses a composite material anti-layering composite adhesive membrane and a preparation method of the membrane. The adhesive membrane is prepared in the steps that 10-15% of milled fibers, 65-75% of thermosetting resin, 12-18% of thermoplastic elastomer powder or tough adhesive membrane and 2-3% of reaction accelerant are evenly mixed by mass to form a mixture, and the mixture is clamped between an upper release film and a lower release paper and pressed into the composite material anti-layering composite adhesive membrane by a press roller, wherein the thickness of the composite material anti-layering composite adhesive membrane is 0.5-5 mm. The milled fibers are introduced between layers, and after hot pressing, countless fiber flocks distributed in a three-dimensional needle shape are embedded between fabric fiber layers to achieve a connection function of a pin; a high-elasticity matrix or a tough adhesive membrane layer is introduced between the layers to achieve the aims of enhancing toughness between the layers and inhibiting layer forming and crack growth, so that impact damage resistance and layering resistance of a composite material laminated board structure are greatly improved.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a composite material anti-delamination composite adhesive film and a preparation method thereof. Background technique [0002] The problem of easy delamination of multilayer composite panels is an important indicator affecting the comprehensive performance of materials. There are some technical measures at home and abroad, such as multi-directional warp knitting technology, multi-directional weft knitting technology, fabric suture technology, three-dimensional weaving technology, quilting technology, Z-pin pin implantation technology, rigid liquid crystal in-situ composite technology, fiber felt Acupuncture technology, fine weaving puncture technology, etc. The above-mentioned technology has the following shortcomings or deficiencies: (1) the production cost is high; (2) the damage to the fiber is more serious in the production process; (3) the standardization degree of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J163/00C09J161/06C09J11/08C09J11/04
CPCC08L2205/06C08L2207/04C09J7/00C09J11/04C09J11/08C09J161/06C09J163/00C08L75/04C08K7/06C08L23/26C08K7/14
Inventor 朱增余杨朝坤罗国伟
Owner GUANGDONG YATAI NEW MATERIAL TECH CO LTD
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