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Nylon elastomer nano composite material and preparation method thereof

A technology of nanocomposite materials and nylon elastomers, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., 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

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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

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  • Nylon elastomer nano composite material and preparation method thereof
  • Nylon elastomer nano composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0087] In this embodiment, the mass ratio of nanomaterials to nylon elastomer is 15:100, 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 lecithin, and the nano-material used is nano-praseodymium oxide, and the nano-composite 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 8g / min for continuous stirring and disperse evenly, the weight ratio of liquid medium to nanomaterials is 16:1;

[0089] (2) Add additives in batches or at a time to the continuously stirring solution of step (1) at a speed of 0.1 g / min to obtain a paste, the consistency of which is 31 mm, and the additives and nanomaterials The weight ratio is 20:1;

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

[0091] (4) feeding the premixed material in step (3) into a screw extrud...

Embodiment 2

[0095] 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 ethylene glycol Alcohol dimethyl ether and water, the mass ratio of ethylene glycol dimethyl ether and water is 6:4, the auxiliary agent adopted is polyacrylic acid and heavy polyamine epichlorohydrin resin, the weight ratio is 1:1, adopts The nanomaterial is nano-zinc oxide, and the nanocomposite material is prepared according to the following method:

[0096] (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;

[0097] (2) add auxiliary agent in the continuous stirring solution of step (1) with the speed of 0.5g / min, obtain paste, the consistency of described paste is 24mm, and the weight ratio of described auxiliary agent and n...

Embodiment 3

[0103] 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 Capres resin, and the nano-materials used are nano-silicon carbide and nano-erbium oxide, and the mass ratio is 9:1. The nano-composite material is prepared according to the following method:

[0104] (1) Stir the liquid medium, and at the same time add nanomaterials at a speed of 0.01g / min for continuous stirring to disperse evenly, and the weight ratio of liquid medium to nanomaterials is 50:1;

[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 69mm, and the weight ratio of the additives to nanomaterials is 0.1 :1;

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

[0107] (4) feeding the premixed mate...

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Abstract

The invention relates to the field of nano composite materials, and in particular relates to a nylon elastomer nano composite material and a preparation method thereof. The nano composite material isobtained by performing melt blending on a pre-mixed material, wherein the pre-mixed material is formed by packing and bonding a nano material combined with a liquid medium among nylon elastomer particles. The preparation method comprises the steps of mixing the liquid medium and the nano material to obtain paste, bonding the paste to the surfaces of the nylon elastomer particles, and performing melt blending to obtain the nano composite material. The nano composite material provided by the invention has excellent toughness, a short process flow and low costs, and is suitable for promotion anduse.

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 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. [0004] Pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K3/22C08L77/06C08L33/02C08L71/03C08K3/34C08L5/08C08K3/04C08K5/19C08L77/00C08K3/36C08L71/02C08L5/04C08L79/08C08L7/00C08J3/205B82Y30/00
CPCB82Y30/00C08J3/2053C08K3/22C08K5/19C08K2003/221C08K2003/2296C08K2201/011C08L77/02C08L77/06C08L2205/03C08L33/02C08L71/03C08K3/34C08L5/08C08K3/046C08L77/00C08K3/36C08L71/02C08L5/04C08L79/08C08L7/00C08K3/041
Inventor 马永梅张京楠曹新宇郑鲲连思铭尚欣欣叶钢
Owner INST OF CHEM CHINESE ACAD OF SCI
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