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Toughened reinforced nylon 6 ternary composite material and preparation method thereof

A composite material and nylon technology, applied in the field of thermoplastic elastomers, can solve problems such as poor dispersion, and achieve the effects of ensuring performance, uniform distribution, and excellent mechanical properties

Inactive Publication Date: 2014-08-20
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in order to improve the notched impact performance of nylon 6, some inorganic additive fibers are often used for modification. Since the inorganic particles or fibers are easy to agglomerate in the nylon 6 matrix, the dispersion is not good, although the notched impact performance There is a certain improvement, but the improvement is limited, while sacrificing the excellent bending and tensile properties of nylon itself
Patents have not been proposed for significantly improving the impact strength of nylon 6 without sacrificing the flexural and tensile properties of nylon 6

Method used

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  • Toughened reinforced nylon 6 ternary composite material and preparation method thereof
  • Toughened reinforced nylon 6 ternary composite material and preparation method thereof
  • Toughened reinforced nylon 6 ternary composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031]

[0032] (1) Treat 1.5 parts by weight of carbon nanotubes with concentrated sulfuric acid and concentrated nitric acid (weight ratio: 3:1), first ultrasonic at 50°C and 60HZ for 2 hours, and then reflux at 100°C for 2 hours; after acidification Wash with 10 times distilled water, and filter under reduced pressure with a microporous membrane until the pH value of the filtrate reaches 7.

[0033] (2) Add 5 parts by weight of nylon 6 into 100ml of formic acid, mechanically stir and dissolve in an oil bath at 80°C, and at the same time, add the modified carbon nanotubes in step (1) to the formic acid solution for ultrasonication, and after the nylon 6 is completely dissolved, the modified Pour the carbon nanotube formic acid mixture into the formic acid solution dissolved in nylon 6, stir mechanically for 100 minutes, rinse with distilled water, wash several times, and finally blast and dry for 24 hours until the formic acid is completely volatilized, and nylon 6 and mod...

Embodiment 2

[0046]

[0047] (1) Treat 1.5 parts by weight of carbon nanotubes with concentrated sulfuric acid and concentrated nitric acid (3:1), first ultrasonicate at 50°C and 60HZ for 2 hours, and then reflux at 100°C for 2 hours; after acidification, use 10 Wash with distilled water twice, and filter under reduced pressure with a microporous membrane until the pH value of the filtrate reaches 7.

[0048](2) Add 5 parts by weight of nylon 6 into 100ml of formic acid, mechanically stir and dissolve in an oil bath at 80° C., and simultaneously add the modified carbon nanotubes obtained in step (1) into the formic acid solution for ultrasonication. After nylon 6 is completely dissolved, the modified The carbon nanotube formic acid mixture was poured into the formic acid solution dissolved in nylon 6, mechanically stirred for 100 minutes, rinsed with distilled water, washed several times, and finally blown and dried for 24 hours until the formic acid was completely volatilized to obtain ...

Embodiment 3

[0060]

[0061]

[0062] (1) Treat 1.5 parts by weight of carbon nanotubes with concentrated sulfuric acid and concentrated nitric acid (3:1), first ultrasonicate at 50°C, 60HZ for 2 hours, and then reflux at 100°C for 2 hours; after acidification, use 10 times Wash with distilled water, and filter under reduced pressure with a microporous membrane until the pH value of the filtrate reaches 7.

[0063] (2) Add 5 parts by weight of nylon 6 into 100ml of formic acid, mechanically stir and dissolve in an oil bath at 80° C., and simultaneously add the modified carbon nanotubes obtained in step (1) into the formic acid solution for ultrasonication. After nylon 6 is completely dissolved, the modified The carbon nanotube formic acid mixture was poured into the formic acid solution dissolved in nylon 6, mechanically stirred for 100 minutes, rinsed with distilled water, washed several times, and finally blasted and dried for 24 hours until the formic acid was completely volatilize...

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Abstract

The invention discloses a toughened and reinforced nylon 6 ternary composite material and a preparation method thereof, belongs to the field of polymer composite materials and relates to a nylon 6 ternary composite material applied to automotive trim and some parts. The toughened and reinforced nylon 6 ternary composite material comprises the following components in parts by weight: 70-80 parts of nylon 6, 20-30 parts of thermoplastic elastomer and 0.5-1.5 parts of carbon nano tube. The prepared nylon 6 ternary composite material has excellent gap impact property and thermal property, the defect of nylon 6 that gap impact property is low can be overcome; meanwhile, bending property and tensile property of the nylon 6 still can be maintained; application field of the nylon 6 is further expanded; meanwhile, experimental raw materials are simple and easily available, and the preparation method is practicable.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a ternary composite material of thermoplastic elastomer, carbon nanotube and nylon 6 with good performance, which is used for automobile interior decoration and some automobile parts, and its preparation technology. Background technique [0002] Nylon 6 (PA6) is the earliest variety developed in engineering plastics, and it is one of the varieties with the largest output in polyamide plastics. Compared with other resin materials, PA6 has the advantages of high mechanical strength, good electrical properties, wear resistance, shock resistance and sound absorption, oil resistance, weak acid resistance, weak alkali resistance, weak polar organic solvents, and good processing fluidity. It is widely used in the automotive industry, Electronics, machinery and other fields. However, nylon 6 is notch-sensitive material, once a small gap appears in the material, it ...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L51/06C08K9/04C08K7/00C08K3/04B29C47/92B29C48/92
CPCB29B7/7461B29B7/46B29B9/06B29C47/0011B29B9/14B29B2009/125B29B7/90B29C2947/92704B29C2947/92485B29C47/92B29B7/72B29C2947/92266B29C48/92B29C2948/92704C08K2201/003C08K2201/004C08K2201/006C08K2201/011C08L77/02C08L2205/025C08L2207/04C08L51/06C08K9/04C08K9/02C08K7/24B29C48/04B29C48/40B29C2948/92266B29C2948/92485B29C2948/9259
Inventor 吴唯蔺兴清
Owner EAST CHINA UNIV OF SCI & TECH
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