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Carbon fiber thermoplastic prepreg fabric with diversion infiltration layer and preparation method and application of carbon fiber composite thermoplastic resin material

A thermoplastic resin and thermoplastic resin technology, applied in the direction of synthetic resin layered products, fiber treatment, chemical instruments and methods, etc., can solve the problems of wettability, low fluidity, high viscosity, etc., and achieve uniform distribution and effective flow Sequence, improve the effect of infiltration effect

Pending Publication Date: 2020-09-22
山东宽原新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation process of thermoplastic carbon fiber prepreg fabric, the heating and infiltration of thermoplastic resin is the focus and difficulty in the preparation technology process. However, the inventors have found that: due to the high viscosity and low fluidity of thermoplastic resin itself, the physical characteristics lead to The wettability between the resin and the monofilaments of the fiber fabric in the molten state is affected, which in turn affects the performance of thermoplastic composites

Method used

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  • Carbon fiber thermoplastic prepreg fabric with diversion infiltration layer and preparation method and application of carbon fiber composite thermoplastic resin material

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0023] 1. A carbon fiber thermoplastic prepreg fabric with a diversion infiltration layer, refer to figure 1 , which includes a thermoplastic mesh layer 1, a porous skeleton layer 2 and a unidirectional carbon fiber strength layer 3. A layer of porous skeleton layer 2 is laid on the thermoplastic mesh layer 1, a layer of unidirectional carbon fiber strength layer 3 is laid on the porous skeleton layer 2, and a layer of porous skeleton layer is laid on the unidirectional carbon fiber strength layer 3 2. A layer of thermoplastic omentum layer 1 is laid on the porous framework layer 2 . The porous skeleton layer 2 is filled with thermoplastic resin powder with a particle size of nanoscale.

[0024] Further, the thermoplastic omentum layer 1 is made of polyethylene thermoplastic resin fibers through a melt-blown process, with a thickness of about 0.05mm and a grammage of about 5g / m 2 .

[0025] The porous skeleton layer 2 is a porous structural layer formed by random arrangemen...

no. 2 example

[0030] 1. A carbon fiber thermoplastic prepreg fabric with a diversion infiltration layer, refer to figure 1 , its structure is the same as that of the first embodiment, the difference is:

[0031] The thermoplastic omentum layer 1 is made of polypropylene thermoplastic resin fibers through a spun-bonding process, with a thickness of about 0.5mm and a grammage of about 8g / m 2 .

[0032] The porous skeleton layer 2 is a porous structural layer formed by three-dimensional four-way weaving of T700 carbon fibers, with a thickness of 0.2 mm, an internal pore diameter of 50 μm, and a skeleton layer weight of about 10 g / m 2 .

[0033] The thermoplastic resin powder is superfine particles made of polypropylene frozen in liquid nitrogen and pulverized, with an average particle diameter of about 50nm, and the mass of the thermoplastic resin powder accounts for 28% of the overall mass of the prepreg fabric.

[0034] The unidirectional carbon fiber strength layer 3 is formed by 12K T80...

no. 3 example

[0037] 1. A carbon fiber thermoplastic prepreg fabric with a diversion infiltration layer, refer to figure 1 , its structure is the same as that of the first embodiment, the difference is:

[0038] The thermoplastic omentum layer 1 is made of polyamide thermoplastic resin fibers through a spun-bonding process, with a thickness of about 0.4 mm and a grammage of about 10 g / m 2 .

[0039] The porous skeleton layer 2 is a porous structural layer formed by random arrangement of T800 carbon fibers, with a thickness of 0.09 mm, an internal pore diameter of 27 μm, and a skeleton layer weight of about 6 g / m 2 .

[0040] The thermoplastic resin powder is an ultrafine particle formed by crushing polyamide after being frozen in liquid nitrogen, and its average particle diameter is about 27nm, and the mass of the thermoplastic resin powder accounts for 25% of the overall mass of the prepreg fabric.

[0041] The unidirectional carbon fiber strength layer 3 is formed by 6K T1000 carbon fi...

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Abstract

The invention relates to the technical field of carbon fiber prepreg fabrics, in particular to a carbon fiber thermoplastic prepreg fabric with a flow guide infiltration layer and a preparation methodand application of a carbon fiber composite thermoplastic resin material. The structure of the pre-impregnated fabric comprises a thermoplastic net film layer, a porous framework layer, a unidirectional carbon fiber strength layer, a porous framework layer and a thermoplastic net film layer which are sequentially laid from bottom to top; wherein the porous skeleton layer is filled with thermoplastic resin powder, and the particle size of the powder is micron and / or nanoscale. According to the invention, the grid micropores of the porous skeleton layer are filled with the thermoplastic resin powder; in the process that the prepreg fabric is heated to infiltrate into the unidirectional carbon fiber strength layer, the hot melting flow track of powder is rectified through the infiltration flow guide effect of grids, it is guaranteed that the powder obtained after hot melting flows orderly and is evenly distributed, and the infiltration effect of the thermoplastic prepreg fabric is improved; and random penetration into the interlayer of the unidirectional carbon fiber strength layer, which influences the uniformity of resin distribution, is avoided.

Description

technical field [0001] The invention relates to the technical field of carbon fiber prepreg fabrics, in particular to a preparation method and application of a carbon fiber thermoplastic prepreg fabric with a diversion infiltration layer and a carbon fiber composite thermoplastic resin material. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] With the wide application of thermosetting resin-based composite materials, the application characteristics of its own material properties are also constantly emerging. Among them, the three-dimensional network resin structure formed by the thermosetting resin itself after being cross-linked by the curing agent, although...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B9/04B32B27/02B32B27/28B32B27/32B32B27/34B32B27/36B32B3/08B32B3/24B32B37/06C08J5/04C08L101/12C08K7/06C08K7/02D06M17/00
CPCB32B5/02B32B5/022B32B5/26B32B3/085B32B3/266B32B37/06C08J5/042C08J5/046D06M17/00B32B2250/20B32B2250/40B32B2260/021B32B2260/046B32B2262/02B32B2262/0253B32B2262/0261B32B2262/0284B32B2264/0257B32B2264/0264B32B2264/0278B32B2264/02B32B2309/02B32B2309/04B32B2605/18C08J2300/12C08J2300/22C08K7/06C08K7/02
Inventor 朱波乔琨曹伟伟林志涛
Owner 山东宽原新材料科技有限公司