Assorted fiber fabric composite material with high nanometer content and preparation method thereof

A technology of composite materials and hybrid fibers, which is applied in fiber types, fiber processing, textiles and papermaking, etc., can solve problems such as softness reduction and limited impact resistance, and achieve increased force-bearing area, increased strength and stiffness, and increased The effect of constraints

Active Publication Date: 2013-07-03
SHENZHEN ACAD OF AEROSPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a nano-hybrid fiber fabric composite material with high softness and good impact resistance in view of the problems of the above-mentioned composite materials with reduced softness or limited impact resistance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Multi-walled carbon nanotubes were used as nanohybrid materials. Carbon nanotubes are agglomerated and need to be dispersed. The carbon nanotubes were dispersed in ethanol under the action of ultrasound, and the concentration of carbon nanotubes was controlled at about 10%. A silane coupling agent (KH550) of 1 wt. % by weight of the carbon nanotubes was added dropwise while being sonicated. Standby for 3 hours after sonication. Spread the ultra-high molecular weight polyethylene fiber fabric on the work surface, and spray the nanoparticles on the surface of the fabric. The number of spraying is 1-2 times, pay attention to spraying evenly. Then, it was dried in a blast drying oven at 80°C to remove the solvent.

[0030] The polyester film is compounded with the dried fabric, and is compounded by a hot rolling process, and the thickness of the polyester film is 60 μm.

[0031] The 24 layers of nanoparticle hybrid fiber fabric composites were superimposed, and the dyn...

Embodiment 2

[0033] The prepared nano-SiO 2 Add a certain amount of ethanol solution to the monodisperse stock solution, nano-SiO 2 The concentration is controlled at about 35%, and it will be used after ultrasonic for 1 hour. The nano-SiO is made by padding method. 2 It is compounded on the surface of aramid (Kevlar) fiber fabric. Then, it was dried in a blast drying oven at 80°C to remove the solvent.

[0034] The cyclobutene terephthalate (CBT160) resin is compounded with the dried fabric, and the molding process is adopted for compound molding, and the content of the CBT160 resin after molding is 40 wt.%.

[0035] 22 layers of nano-particle hybrid fiber fabric composite materials were superimposed, and the bulletproof test was carried out according to the GA141-2003 standard. The dynamic stab resistance performance test is carried out according to the GA68-2008 standard. The results meet the standard requirements.

Embodiment 3

[0037]Graphene was used as a nanohybrid material. Graphene is agglomerated and needs to be dispersed. The graphene was dispersed in ethanol under the action of ultrasound, and the graphene concentration was controlled at about 5%. A silane coupling agent (KH570) of 1 wt. % by weight of graphene was added dropwise while sonicating. Standby for 3 hours after sonication. The aramid (Kevlar) fiber fabric was laid flat on the work surface, and then the nanoparticles were sprayed on the surface of the fabric. The number of spraying is 1-2 times, pay attention to spraying evenly. Then, it was dried in a blast drying oven at 80°C to remove the solvent.

[0038] The polyethylene resin is compounded with the dried fabric, and the coating process is adopted for compound molding, and the content of the polyethylene resin after molding is 30wt.%.

[0039] Superimpose 24 layers of nano-particle hybrid fiber fabric composite materials, and carry out bulletproof test according to GA141-2...

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Abstract

The invention relates to an assorted fiber fabric composite material with high nanometer content and a preparation method thereof, belonging to the field of protective composite materials. Aiming at the problems of decreased flexibility and poor impact resistance of the traditional protective composite material, the invention provides a composite material and a preparation method thereof. The composite material has favorable flexibility and strong impact resistance. The preparation method comprises the following steps of: (1) dispersing treatment of nanoparticles; (2) nanometer complex treatment of fiber fabric; (3) drying; and (4) complex treatment of the fiber fabric with thermoplastic resin. Through carrying out a protective standard test on the composite material, a test result can meet the requirements on GA141-2003 bulletproof standards and GA68-2008 puncture-proof standards. The composite material provided in the invention is not only suitable for civil fields, such as sport protection, building and decoration industrial personnel protection, protection of motorcycle racing drivers, safety protection of taxi drivers and the like, but also suitable for military, police department, safety department and the like.

Description

technical field [0001] The invention relates to the field of protective composite materials, in particular to a hybrid fiber fabric composite material with high nanometer content and a preparation method thereof. Background technique [0002] High-performance fiber fabrics include: ultra-high molecular weight polyethylene fabrics (UHMWPE), aramid fabrics and polyparaphenylene benzobisoxazole (PBO) fabrics. This type of fabric is widely used as a fabric for soft body armor due to its light weight, softness and good energy absorption. Coating the thermoplastic resin on the fiber cloth can restrain the movement of the fiber tow, instantaneously transmit and diffuse the impact force in a large area, thereby further improving the impact resistance, bulletproof and puncture resistance of the composite material. [0003] At present, it is not difficult to prepare protective clothing that is bullet-proof, fragment-proof and stab-proof at the same time. The main problems are the lig...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/79D06M11/74D06M11/76D06M11/77A41D31/00D06M101/36D06M101/20D06M101/30D06M101/34
Inventor 曹海琳晏义伍
Owner SHENZHEN ACAD OF AEROSPACE TECH
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