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A kind of nylon elastomer nanocomposite material and preparation method thereof

A technology of nanocomposite materials and nylon elastomers, applied in the field of nanocomposite materials, can solve the problems of polyamide failing to enter the interlayer in time, product performance impact, etc.

Active Publication Date: 2021-02-05
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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  • A kind of nylon elastomer nanocomposite material and preparation method thereof
  • A kind of nylon elastomer nanocomposite material and preparation method thereof
  • A kind of nylon elastomer nanocomposite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] In this embodiment, the mass ratio of nanomaterials to nylon elastomer is 2:100, the nylon elastomer is PA6 series, the mass ratio of PA6 to polyether block is 95:5, and the liquid medium used is water. The auxiliary agent is benzalkonium bromide, the nanomaterial used is layered nano-montmorillonite, and the anti-aging agent used is tris(2,4-di-tert-butylphenyl) phosphite, and the nanocomposite is prepared according to the following method Material:

[0103] (1) Stir the liquid medium, and at the same time add nanomaterials at a speed of 5g / min for continuous stirring and disperse evenly, and the weight ratio of liquid medium to nanomaterials is 20:1;

[0104] (2) Add additives in batches or at a time to the continuously stirring solution of step (1) at a speed of 0.1g / min to obtain a paste, the consistency of which is 66mm, and the additives and nanomaterials The weight ratio is 10:1;

[0105] (3) the paste obtained in step (2) is mixed with nylon elastomer to obtai...

Embodiment 2

[0110] In this embodiment, the mass ratio of nanomaterials to nylon elastomer is 10:100, the nylon elastomer is PA66 series, the mass ratio of PA66 to polyether block is 95:5, and the liquid medium used is trifluoro Acetic acid and water, the mass ratio of trifluoroacetic acid and water is 2:98, the auxiliary agent that adopts is polyacrylic acid and sodium stearyl sulfate, and weight ratio is 1:1, and the nanometer material that adopts is sepiolite, adopts The anti-aging agent is antioxidant 1035, and the nanocomposite material is prepared according to the following method:

[0111] (1) Stir the liquid, and at the same time add nanomaterials at a speed of 10g / min for continuous stirring to disperse evenly, and the weight ratio of the liquid medium to the nanomaterials is 100:1;

[0112] (2) Add auxiliary agent to the continuous stirring solution of step (1) with the speed of 5g / min, obtain paste, the consistency of described paste is 16mm, and the weight ratio of described au...

Embodiment 3

[0118] In this embodiment, the mass ratio of nanomaterials to nylon elastomer is 0.1:100, the nylon elastomer is PA12 series, the mass ratio of PA12 to polyether block is 95:5, the liquid medium used is water, and The auxiliary agent is polyamide epichlorohydrin resin and its oligomers, and the nanomaterials used are kaolin and sepiolite, and the mass ratio is 3:7. The nanocomposite material is prepared according to the following method:

[0119] (1) Stir the liquid medium, and at the same time add nanomaterials at a speed of 0.05g / min for continuous stirring to disperse evenly, and the weight ratio of the liquid medium to the nanomaterials is 50:1;

[0120] (2) Add additives to the continuous stirring solution of step (1) at a speed of 5g / min to obtain a paste, the consistency of the paste is 49mm, and the weight ratio of the additives to nanomaterials is 0.1 :1;

[0121] (3) the paste obtained in step (2) is mixed with nylon elastomer to obtain a premix;

[0122] (4) feedi...

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Abstract

The invention relates to the field of nano-composite materials, in particular to a nylon elastomer nano-composite material and a preparation method thereof. The nano-composite material is prepared by melt blending a premix, and the premix is It is formed by the filling and adhesion of nanomaterials combined with liquid medium between nylon elastomer particles. The preparation method includes mixing a liquid medium and a nanomaterial to obtain a paste, and adhering the paste to the surface of the nylon elastomer particle for melt blending to obtain a nanocomposite material. The nanocomposite material provided by the invention has excellent toughness, short technological process and low cost, and is suitable for popularization and use.

Description

technical field [0001] The invention relates to the field of nanocomposite materials, in particular to a nylon elastomer 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 between the layers of nanomaterials to improve the impact resistance of the composite material. However, 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. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08K3/34C08K3/02C08K3/24C08K5/098C08K3/04C08K3/18C08J3/20C08J5/00
CPCC08J3/2053C08J5/005C08J2377/02C08J2377/06C08J2405/00C08J2433/02C08K3/18C08K3/24C08K3/346C08K5/098C08K2003/023C08K2003/026C08K2201/011C08K2201/014C08K3/042
Inventor 马永梅庄亚芳向前郑鲲张京楠曹新宇尚欣欣
Owner INST OF CHEM CHINESE ACAD OF SCI
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