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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

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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

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

Examples

Experimental program
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Embodiment 1

[0103] In this embodiment, the mass ratio of the nanomaterial to the long carbon chain nylon is 7:100, the long carbon chain nylon is selected from PA1010, the liquid medium used is water, and the auxiliary agent used is fatty acid methyl ester polyoxyethylene ether, The nanometer material that adopts is layered nano-montmorillonite, and the antiaging agent that adopts is antioxidant 264, prepares nanocomposite material according to the following method:

[0104] (1) Stir the liquid medium, and at the same time add nanomaterials at a speed of 3.5g / min for continuous stirring to disperse evenly, and the weight ratio of liquid medium to nanomaterials is 70:1;

[0105] (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 86mm, and the additives and nanomaterials The weight ratio is 10:1;

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

Embodiment 2

[0111] 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 butyl chloride and water, and the mass ratio of butyl chloride and water The ratio is 8:92, the additives used are polyacrylate and locust bean gum, the weight ratio is 1:1, the nanomaterial used is kaolin, the anti-aging agent used is antioxidant 1076, and the nanocomposite is prepared according to the following method Material:

[0112] (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;

[0113] (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 92mm, and the weight ratio of described auxiliary agent and nanometer material is 50...

Embodiment 3

[0119] In this embodiment, the mass ratio of nanomaterials to long carbon chain nylon is 0.1:100, the long carbon chain nylon is selected from PA612, the liquid medium used is water, and the auxiliary agent used is polyvinylamine and its prepolymer , the nanomaterials used are nano-montmorillonite and kaolinite, the mass ratio is 3:1, and the nanocomposite material is prepared according to the following method:

[0120] (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;

[0121] (2) Add additives to the continuous stirring solution of step (1) at a speed of 12g / min to obtain a paste, the consistency of the paste is 78mm, and the weight ratio of the additives to nanomaterials is 0.1 :1;

[0122] (3) the paste obtained in step (2) is mixed with long carbon chain nylon to obtain a premix;

[0123] (4) feeding the premixed ma...

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Abstract

The invention relates to the field of nano composite materials, in particular to a long-carbon-chain nylon nano composite material and a preparation method thereof. The nano composite material is prepared by melt blending of a premix, wherein the premix is formed by filling and bonding long-carbon-chain nylon particles with a nano material which is combined with a liquid medium. The preparation method comprises the following steps: mixing a liquid medium and a nano material to obtain a paste, and sticking the paste to the surfaces of the long-carbon-chain nylon particles for melt blending to obtain the nano composite material. The nano composite material provided by the invention is excellent in toughness, short in technological process and low in cost, and is suitable for 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 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 poll...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L77/02C08L71/02C08L33/04C08L5/00C08L79/02C08L29/04C08L61/22C08L39/00C08L63/00C08K7/00C08K3/34C08K3/26C08K3/24C08K5/092C08K3/02C08K5/42
CPCC08K2201/011C08L77/02C08L77/06C08L2205/025C08L2205/03C08L71/02C08K7/00C08K3/346C08L33/04C08L5/00C08L79/02C08K3/34C08L29/04C08K3/26C08K3/24C08L61/22C08K5/092C08K3/042C08L39/00C08K3/02C08L63/00C08K5/42
Inventor 马永梅庄亚芳向前郑鲲张京楠曹新宇连思铭
Owner INST OF CHEM CHINESE ACAD OF SCI
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