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Long-carbon-chain nylon nano composite material and preparation method thereof

A nanocomposite material and nanomaterial technology, applied in the field of long carbon chain nylon nanocomposite materials and its preparation, can solve the problems of polyamide failing to enter the interlayer in time, product performance impact, etc.

Active Publication Date: 2019-09-13
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method is simple and the production cost is low, but this method is to add montmorillonite mud after polyamide melting, which will cause the montmorillonite mud to be completely mixed with the copolymer in the future, and the water between the layers will be gasified due to high temperature. As a result, the polyamide failed to enter the interlayer in time. At the same time, the energy generated only by water vaporization was not enough to completely peel off the montmorillonite layer, so a completely peeled composite material could not be obtained, and its product performance was greatly affected. influences

Method used

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  • Long-carbon-chain nylon nano composite material and preparation method thereof
  • Long-carbon-chain nylon nano composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] In this embodiment, the mass ratio of nanomaterials to long carbon chain nylon is 16:100, the long carbon chain nylon is selected from PA1010, the liquid medium used is water, the auxiliary agent used is o-dichlorobenzene, and the nanometer The material is a carbon nanotube, and the nanocomposite material is prepared according to the following method:

[0088] (1) Stir the liquid medium, and at the same time add nanomaterials at a speed of 3g / min for continuous stirring. The dispersion is uniform, and the weight ratio of liquid medium to nanomaterials is 18:1;

[0089] (2) Add additives to the continuous stirring solution of step (1) in batches or once at a speed of 0.1g / min to obtain a paste, the consistency of which is 96mm, and the additives and nanomaterials The weight ratio is 20:1;

[0090] (3) the paste obtained in step (2) is mixed with long carbon chain nylon to obtain a premix;

[0091] (4) The premix of step (3) is fed into the screw extruder from the press...

Embodiment 2

[0095] In the present embodiment, the mass ratio of nanometer material and long carbon chain nylon is 10:100, and described long carbon chain nylon is selected from PA610, and the liquid medium adopted is trimethylpentane and water, trimethylpentane and The mass ratio of water is 3:1, the auxiliary agent that adopts is polyacrylic acid and pectin, and weight ratio is 1:1, and the nanometer material that adopts is nanometer lanthanum oxide, prepares nanocomposite material according to the following method:

[0096] (1) The liquid is stirred, and the nanomaterial is added at a speed of 10g / min to continuously stir and disperse evenly, and the weight ratio of the liquid medium to the nanomaterial is 100:1;

[0097] (2) Add auxiliary agent to the continuous stirring solution of step (1) with the speed of 0.5g / min, obtain paste, the consistency of described paste is 85mm, and the weight ratio of described auxiliary agent and nanometer material is 40:1;

[0098] (3) the paste obtai...

Embodiment 3

[0103] In the present embodiment, the mass ratio of nanometer material and long carbon chain nylon is 0.1:100, and described long carbon chain nylon is selected from PA612, and the liquid medium that adopts is water, and the auxiliary agent that adopts is dicyandiamide formaldehyde resin, adopts The nanomaterials are nano zirconia and nano erbium oxide, the mass ratio is 1:1, and the nanocomposite material is prepared according to the following method:

[0104] (1) The liquid medium is stirred, and the nanomaterial is added at a speed of 0.01g / min to continuously stir and disperse evenly, and the weight ratio of the liquid medium to the nanomaterial is 20:1;

[0105] (2) Add additives to the continuous stirring solution of step (1) at a speed of 10g / min to obtain a paste, the consistency of the paste is 42mm, and the weight ratio of the additives to nanomaterials is 50 :1;

[0106] (3) the paste obtained in step (2) is mixed with long carbon chain nylon to obtain a premix;

...

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Abstract

The invention relates to the field of nano composite materials and in particular to a long-carbon-chain nylon nano composite material and a preparation method thereof. The nano composite material is prepared from a premix through melting blending, and the premix is prepared from a nano material which is combined with a liquid medium and is adhered to long-carbon-chain nylon granules and fills space among the long-carbon-chain nylon granules. The preparation method comprises the following steps of: mixing the liquid medium with the nano material so as to obtain an ointment, enabling the ointment to adhere to surfaces of the long-carbon-chain nylon granules, and carrying out melting blending, so as to obtain the nano composite material. The nano composite material provided by the invention has excellent toughness, and in addition is short in process procedure, low in cost and applicable to popularization and application.

Description

technical field [0001] The invention relates to the field of nanocomposite materials, in particular to a long carbon chain nylon nanocomposite material and a preparation method thereof. Background technique [0002] In the existing technology, nanomaterials and polymers are often mixed and extruded to form composite materials. Although the tensile strength of such composite materials has been improved, due to problems such as poor compatibility between nanomaterials and polymers, this type of material The impact resistance performance is generally not high. [0003] In order to solve the above problems, methods such as intercalation in-situ polymerization are often used to make the polymer react in the gaps of nanomaterials to improve the impact resistance of the composite material, but this process takes a long time, the polymerization reaction conditions are harsh, and the solvent is not easy. Recycling will bring derivative problems such as environmental pollution. [0...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L33/02C08L5/06C08L61/22C08K3/04C08K5/03C08K3/22C08K5/18
CPCC08K3/041C08K5/03C08L77/06C08K2003/221C08K2201/011C08K2003/2244B29C2948/92704B29C48/92C08L33/02C08L5/06C08K3/22C08L61/22C08L77/00C08K7/06C08K5/18
Inventor 马永梅郑鲲张京楠曹新宇邝凤霞尚欣欣叶钢马远远
Owner INST OF CHEM CHINESE ACAD OF SCI
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