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A kind of thermoplastic vulcanized rubber nanocomposite material and preparation method thereof

A nanocomposite material, thermoplastic vulcanization technology, 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., to achieve suitable The effect of promotion, improvement of solvent resistance, and improvement of tear strength

Active Publication Date: 2021-09-07
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 thermoplastic vulcanized rubber nanocomposite material and preparation method thereof
  • A kind of thermoplastic vulcanized rubber nanocomposite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0086] In this embodiment, the thermoplastic vulcanizate is NBR / PP, wherein the rubber-to-plastic ratio is 70 / 30, the mass ratio of nanomaterials to thermoplastic vulcanizate is 15:100, the liquid medium used is water, and the auxiliary agent used is tamarind Polysaccharide glue, the nano material that adopts is nano-praseodymium oxide, prepares nano-composite material according to the following method:

[0087] (1) Stir the liquid medium, and at the same time add nanomaterials at a speed of 4.2g / min for continuous stirring and disperse evenly, the weight ratio of liquid medium to nanomaterials is 16:1;

[0088] (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 28mm, the additives and nanomaterials The weight ratio is 20:1;

[0089] (3) mixing the paste obtained in step (2) with thermoplastic vulcanizate to obtain a premix;

[0090] (4) feeding the premixed material in st...

Embodiment 2

[0094] In the present embodiment, the thermoplastic vulcanizate is NBR / PP, wherein the rubber-to-plastic ratio is 20 / 80, the mass ratio of nanomaterials to thermoplastic vulcanizate is 10:100, and the liquid medium adopted is isobutanol and water, isobutanol and The mass ratio of water is 1:9, the additives used are aliphatic sulfonate and sulfonaphthalene sulfonate, the weight ratio is 1:1, the nanomaterial used is nano-zinc oxide, and the nanocomposite is prepared according to the following method Material:

[0095] (1) Stir the liquid, and at the same time add nanomaterials at a speed of 20g / min for continuous stirring to disperse evenly, and the weight ratio of the liquid medium to the nanomaterials is 100:1;

[0096] (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 18mm, and the weight ratio of described auxiliary agent and nanometer material is 10:1;

[0097] (3) mixi...

Embodiment 3

[0102] In this embodiment, the thermoplastic vulcanizate is NBR / PP, wherein the rubber-to-plastic ratio is 50 / 50, the mass ratio of nanomaterials to thermoplastic vulcanizate is 0.1:100, the liquid medium used is water, and the auxiliary agent used is polystyrene Sodium ethylene sulfonate, the nano material that adopts is nano-titanium dioxide and nano-alumina, and mass ratio is 9:1, prepares nano-composite material according to the following method:

[0103] (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 0.1:1;

[0104] (2) Add auxiliary agent to the continuous stirring solution of step (1) with the speed of 15g / min, obtain paste, the consistency of described paste is 79mm, and the weight ratio of described auxiliary agent and nano material is 30 :1;

[0105] (3) mixing the paste obtained in step (2) with thermoplastic vulcanizate ...

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Abstract

The invention relates to the field of nanocomposite materials, in particular to a thermoplastic vulcanizate nanocomposite material and a preparation method thereof, wherein the nanocomposite material is prepared by melt blending a premixed material, and the premixed material is prepared from The nanometer material combined with the liquid medium is filled and adhered between thermoplastic vulcanized rubber particles, and the thermoplastic vulcanized rubber includes non-polar plastics and polar rubbers. The preparation method comprises mixing the liquid medium and the nano material to obtain a paste, adhering the paste to the surface of thermoplastic vulcanized rubber particles for melting and blending to obtain a nanocomposite material. The nanocomposite material provided by the invention has excellent toughness, short process flow 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 thermoplastic vulcanized rubber 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 pollutio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L23/12C08L5/00C08L25/18C08L71/02C08L71/00C08K3/22C08K5/42C08L33/00C08K3/04C08L55/02C08K3/36C08L35/00C08L39/06C08L5/08C08K5/19B82Y30/00C08J3/205
CPCB82Y30/00C08J3/2053C08K2003/221C08K2003/2227C08K2003/2241C08K2003/2296C08K2201/011C08L9/02C08L23/12C08L33/00C08L55/02C08L71/00C08L2205/03C08L5/00C08K3/22C08K5/42C08L25/18C08K3/046C08L71/02C08K3/36C08L35/00C08L39/06C08L5/08C08K5/19C08K3/041
Inventor 马永梅郑鲲张京楠曹新宇尚欣欣叶钢
Owner INST OF CHEM CHINESE ACAD OF SCI
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