Fiber surface treatment method

A treatment method and fiber surface technology, which is applied in fiber treatment, fiber type, textiles and papermaking, etc., can solve the problems of poor bonding performance between fiber and resin matrix, achieve large-scale production, good application prospects, and improve mechanical properties. performance effect

Active Publication Date: 2021-07-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the interface between the fiber and the resin matrix is ​​poor due to the inertness of the fiber surface, and to pr

Method used

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Example Embodiment

[0023] DETAILED DESCRIPTION OF THE INVENTION A fiber surface treatment method is described in this embodiment, the method comprising the steps of:

[0024] Step 1: The fiber is immersed in 0.1% to 15% small molecular surfactant solution 1 to 120 min, and the small molecule surface activator can form a chemical link to the fiber inert surface, improve the surface of the fiber surface, and activate fiber 1;

[0025] Step 2: Immersion of the activated fiber 1 in a concentration of 1% to 40% polymer solution 1 min ~ 60min, ultrasonic treatment, after drying, the surface is dried to activate the fiber 2;

[0026] Step 3: Immerse the activation fibers 2 in a 0.1% to 60% crosslinker solution, chemically crosslinking, the polymer forms a three-dimensional crosslinked network structure on the surface of the fiber to obtain activated fibers 3;

[0027] Step 4: Immersion the activated fiber 3 in a 0.1% -15% resin solution 1min to 60 min, and fill the resin solution to the polymer cross-linki...

Example Embodiment

[0030] DETAILED DESCRIPTION OF THE INVENTION 2: DETAILED DESCRIPTION OF THE INVENTION A Fiber Surface Treatment Method of FIG. 1, in step one, the fiber is PBO fiber, aramid fiber, carbon fiber, polyester fiber, glass fiber, nylon 66, polyphenylene sulfide One of the fibers, basalt fibers or ultra-high molecular weight polyethylene fibers.

Example Embodiment

[0031] DETAILED DESCRIPTION OF THE INVENTION 3: DETAILED DESCRIPTION OF THE INVENTION A fiber surface treatment method, in step one, the small molecule surface activator is a silane coupling agent, ethylene chloride, adipic chloride, butylene diacyl chloride, C One or more mixed in diachlor chloride, glutaraldehyde or caprolactone. These small molecular surface activators are capable of activating the fiber surface, increasing the fiber surface active group, facilitating the composite of the fibers and the polymer network.

[0032] DETAILED DESCRIPTION OF THE INVENTION 4: DETAILED DESCRIPTION OF THE INVENTION A fiber surface treatment method according to the third embodiment, the silane coupling agent is KH-550, KH-560, KH-570, KH-151, KH-171 or KH-792. One or more compounds. These silane coupling agents can form an amine group on the surface of the fibers to increase the surface energy of the fibers.

[0033] DETAILED DESCRIPTION OF THE INVENTION 5: DETAILED DESCRIPTION OF THE IN...

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Abstract

The invention provides a fiber surface treatment method, and belongs to the field of fiber surface modification. The method comprises the following steps: placing fibers in a micromolecular surfactant for surface activation, dipping the fibers in a polymer dilute solution, and drying surface moisture after ultrasonic treatment; dipping the fibers in a cross-linking agent for chemical cross-linking to form a layer of polymer cross-linked network structure on the surfaces of the fibers; and placing the fibers in a resin solution, filling the resin solution into the polymer cross-linked network structure through solution replacement, and constructing a cross-linked dual-network structure on the surface of the fibers. Compared with the prior art, the method provided by the invention has the following advantages that the tensile strength of a fiber body is improved while the bonding strength of the fiber and the resin matrix is improved, and the method is simple and beneficial to large-scale production and use.

Description

technical field [0001] The invention belongs to the technical field of fiber surface modification, and in particular relates to a fiber surface treatment method. Background technique [0002] Fiber-based resin composite material is an advanced composite material with great application value and application prospect. It is composed of high-performance fiber and polymer resin. It has high strength, high modulus, fatigue resistance, Corrosion resistance, strong designability, easy processing and molding. High-performance composite materials were developed and industrialized in the 1960s, which promoted the development of national defense and aerospace technology. For decades, high-performance fiber composite materials have been continuously developed, and have been rapidly promoted from the aerospace field to protective equipment, sports equipment, transportation, construction, industrial equipment and other fields. In addition, high-performance fibers such as PBO fibers and ...

Claims

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Application Information

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IPC IPC(8): C08J5/06C08L63/00C08L79/04C08L77/10C08L77/00D06M13/513D06M15/333D06M13/123D06M15/55D06M13/192D06M15/03D06M15/41D06M11/82D06M15/59D06M101/30D06M101/36
CPCC08J5/06D06M13/513D06M15/333D06M13/123D06M15/55D06M13/192D06M15/03D06M15/41D06M11/82D06M15/59C08J2363/00C08J2479/04C08J2477/10C08J2377/00D06M2101/30D06M2101/36
Inventor 黄玉东刘梦元黎俊刘丽胡桢
Owner HARBIN INST OF TECH
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