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A high-toughness fatigue-resistant resin composite material for carbon fiber bags

A resin composite material and composite material technology are used in the field of high toughness fatigue-resistant resin composite materials to achieve good strength and improved curing kinetics.

Active Publication Date: 2022-06-07
XIANGXING FUJIAN BAG ANDLUGGAGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, traditional bags are difficult to meet people's demanding requirements. High strength, light weight, cheap price, environmental protection and beautiful appearance are the general requirements of the public for luggage products.

Method used

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  • A high-toughness fatigue-resistant resin composite material for carbon fiber bags

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation method of high toughness fatigue-resistant resin composite material for carbon fiber bags, which includes the following steps:

[0027] (1) 15 parts of polyether polyol (mixed from polypropylene glycol, polyethylene glycol), 3 parts of polyester polyol (made of polyurethic acid polyester diol, polycarbonate diol mixed) and 1 part of polyisocyanate mixed to prepare polyurethane prepolymer, wherein the polyether polyol and polyester polyol in 125 ~ 135 ° C environment mixed stirring treatment; Under the protective atmosphere of inert gas, polyisocyanates are added for mixing, and the temperature of the mixing system is adjusted to 120 °C stirring treatment for 1h to obtain polyurethane prepolymers;

[0028] (2) 80 parts epoxy resin, 2 parts short cut carbon fiber, 1 part dicyanamide as curing agent, 2 parts end carboxybutynitrile rubber as toughening agent and 4 parts montmorillonite are added to the mixer at a temperature of 50 °C for 80 min to prepare the pre-mi...

Embodiment 2

[0031] Preparation method of high toughness fatigue-resistant resin composite material for carbon fiber bags, which includes the following steps:

[0032] (1) 20 parts of polyether polyols (composed of polypropylene glycol, polyethylene glycol, polytetrahydrofuran glycol mixed), 8 parts of polyester polyols (composed of adipic acid polyester diol, polycarbonate glycol, polyethylene terephthalate, phthalic anhydride polyol mixture) and 5 parts of polyisocyanate mixed to obtain polyurethane prepolymer, wherein the polyether polyol and polyester polyol in 125 ~ 135 °C environment mixed after mixing and mixing treatment; Under the protective atmosphere of inert gas, polyisocyanates are added for mixing, and the temperature of the mixing system is adjusted to 100 °C and stirred for 1.5 h to obtain polyurethane prepolymers;

[0033] (2) 90 parts epoxy resin, 3 parts short cut carbon fiber, 2 parts dicycline as curing agent, 4 parts polysulfone as toughening agent and 5 parts montmorillo...

Embodiment 3

[0036] Preparation method of high toughness fatigue-resistant resin composite material for carbon fiber bags, which includes the following steps:

[0037] (1) 25 parts of polyether polyols (mixed from polyethylene glycols, polytetrahydrofuran glycols), 15 parts of polyester polyols (composed of polycarbonate diol, polyethylene terephthalate, phthalic anhydride polyol mixture) and 8 parts of polyisocyanates to obtain polyurethane prepolymers, wherein the polyether polyols and polyester polyols are mixed and mixed under an environment of 125 ~ 135 ° C; Under the protective atmosphere of inert gas, polyisocyanates are added for mixing, and the temperature of the mixing system is adjusted to 120 °C stirring treatment for 1h to obtain polyurethane prepolymers;

[0038] (2) 100 parts epoxy resin, 4 parts short cut carbon fiber, 3 parts dicyanamide as curing agent, 6 parts end carboxybutynitrile rubber as toughening agent and 6 parts montmorillonite are added to the mixer at a temperatur...

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Abstract

The invention discloses a high-toughness fatigue-resistant resin composite material used for carbon fiber bags. A PU (polyurethane) prepolymer is synthesized by a prepolymerization method, and the epoxy resin is modified by using the PU prepolymer. Cyanoamide is used as the curing agent, and PU, CTBN, and PSF are used as the toughening agent to toughen the epoxy resin, so that the adhesive properties, mechanical properties, dynamic thermomechanical properties, and curing kinetics of the modified epoxy resin can be improved. The method of in-situ generation of nanoparticles in epoxy resin by montmorillonite is also used to improve the toughness of the epoxy resin matrix, and the epoxy resin prepolymer is inserted into the montmorillonite by taking advantage of the weak interlayer interaction of montmorillonite. During the curing process of the epoxy resin, the interlayer spacing of the montmorillonite is further expanded and peeled off, and finally dispersed evenly in the polymer in the form of a single layer, so that the composite material has good strength, toughness and fatigue resistance.

Description

Technical field [0001] The present invention relates to the technical field of luggage materials, in particular for carbon fiber bags high toughness fatigue resistant resin composites. Background [0002] Carbon fiber due to its light weight, high strength and other characteristics, has been successfully applied to luggage products abroad, Lamborghini in 2011 launched 3 fashion series bags made of carbon fiber, and highlighted the carbon fiber diagonal graphite reflection effect. In 2014, a set of bags tailored by Louis Vuitton for the BMW i8 was also made entirely of carbon fiber composites, and the carbon fiber for aviation was first unveiled in Louis Vuitton luxury leather goods. As a pioneer in the industry in the adoption of innovative materials. Carbon fiber is woven into a charcoal grey fabric lined with porous microfibers and coated with an electric blue coating, resulting in a delicate and lightweight luggage. The bag can only be ordered in select Louis Vuitton stores wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L75/08C08L13/00C08L81/06C08K7/06C08K3/34
CPCC08L63/00C08K2201/011C08L2205/03C08L75/08C08L13/00C08L81/06C08K7/06C08K3/346
Inventor 王剑磊陈琼谢孝波
Owner XIANGXING FUJIAN BAG ANDLUGGAGE GRP CO LTD