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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  • 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 performa

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

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[0030] Example 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 ultrasonically 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, use a microporous membrane to filter under reduced pressure until the pH of the filtrate reaches 7.

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

Example Embodiment

[0045] Example 2

[0046]

[0047] (1) Use concentrated sulfuric acid and concentrated nitric acid (3:1) to treat 1.5 parts by weight of carbon nanotubes, first ultrasonically 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, use a microporous membrane to filter under reduced pressure until the pH of the filtrate reaches 7.

[0048] (2) Add 5 parts by weight of nylon 6 to 100ml of formic acid, stir to dissolve in an oil bath at 80°C, and add the modified carbon nanotubes obtained in step (1) to the formic acid solution ultrasonically. After nylon 6 is completely dissolved, the Pour the carbon nanotube formic acid mixture into the formic acid solution dissolved in nylon 6, mechanically stir for 100 minutes, rinse with distilled water, wash several times, and finally blow dry for 24 hours until the formic acid is completely volatilized to obtain nylon 6 and modified Carbon nanotube masterbatch.

[0049] (3) Dry ...

Example Embodiment

[0059] Example 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 ultrasonically at 50°C, 60HZ for 2 hours, then reflux at 100°C for 2 hours; use 10 times after acidification Wash with distilled water and use a microporous membrane to filter under reduced pressure until the pH of the filtrate reaches 7.

[0063] (2) Add 5 parts by weight of nylon 6 to 100ml of formic acid, stir to dissolve in an oil bath at 80°C, and add the modified carbon nanotubes obtained in step (1) to the formic acid solution ultrasonically. After nylon 6 is completely dissolved, the Pour the carbon nanotube formic acid mixture into the formic acid solution dissolved in nylon 6, mechanically stir for 100 minutes, rinse with distilled water, wash repeatedly, and finally blow dry for 24 hours until the formic acid is completely volatilized. Obtain nylon 6 and modified carbon nanotube master batch.

[0064] (3) ...

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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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