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

A nanocomposite material, thermoplastic vulcanization technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of polyamide not entering the interlayer in time, product performance impact, etc., to achieve suitable Promotion, improvement of solvent resistance, and simple and easy-to-operate process

Active Publication Date: 2021-06-04
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

[0101] In this embodiment, the thermoplastic vulcanizate is acrylic rubber / PET, wherein the rubber-to-plastic ratio is 70 / 30, the mass ratio of nanomaterials to thermoplastic vulcanizate is 2:100, the liquid medium used is water, and the auxiliary agent used is poly Sorbitate, the nano material that adopts is layered nano montmorillonite, the antiaging agent that adopts is tris (2,4-di-tert-butylphenyl) phosphite, prepares nano composite material according to the following method:

[0102] (1) Stir the liquid medium, and at the same time add nanomaterials at a speed of 5.5g / min for continuous stirring and disperse evenly, and the weight ratio of liquid medium to nanomaterials is 11:1;

[0103] (2) Add additives to the continuous stirring solution of step (1) in batches or at a time at a speed of 0.1g / min to obtain a paste, the consistency of which is 95mm, the additives and nanomaterials The weight ratio is 2:1;

[0104] (3) mixing the paste obtained in step (2) with thermopl...

Embodiment 2

[0109] In this embodiment, the thermoplastic vulcanizate is acrylic rubber / PET, wherein the rubber-to-plastic ratio is 20 / 80, the mass ratio of nanomaterials to thermoplastic vulcanizate is 10:100, and the liquid medium used is propionitrile and water, propionitrile The mass ratio to water is 1:6, the additives used are casein, tragacanth gum and safflower gum, the weight ratio is 1:2, the nanomaterial used is kaolin, and the anti-aging agent used is antioxidant 1035 , prepare nanocomposites according to the following method:

[0110] (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;

[0111] (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 32mm, and the weight ratio of the additives to nanomaterials is 10 :1;

[0112] (3) mixing the paste o...

Embodiment 3

[0117] In this embodiment, the thermoplastic vulcanizate is acrylic rubber / PET, 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 rosin Amine-ethylene oxide polycondensate, the nanomaterials used are Co / Mg-LDHs and nano-montmorillonite, the mass ratio is 1:4, and the nanocomposite material is prepared according to the following method:

[0118] (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;

[0119] (2) Add additives to the continuous stirring solution of step (1) at a speed of 13g / min to obtain a paste, the consistency of the paste is 46mm, and the weight ratio of the additives to nanomaterials is 65 :1;

[0120] (3) mixing the paste obtained in step (2) with thermoplastic vulcanizate to obtai...

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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 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 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 environmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/00C08L67/02C08K3/34C08L89/00C08L5/00C08L71/02C08K3/22C08L9/02C08L77/00C08L29/04C08K3/24C08K5/41C08L55/02C08L1/02C08K5/098C08L33/26C08K3/04C08L39/00C08K3/18C08L35/06C08L39/04C08K3/02C08J3/205B82Y30/00
CPCB82Y30/00C08J3/2053C08K2003/023C08K2201/011C08L9/02C08L33/00C08L55/02C08L67/02C08L2205/025C08L2205/03C08L2205/035C08K3/346C08L89/005C08L5/00C08L71/02C08K3/22C08L77/00C08L29/04C08K3/24C08K5/41C08L1/02C08K5/098C08L33/26C08K3/042C08L39/00C08K3/18C08L35/06C08L39/04C08K3/041C08K3/02
Inventor 马永梅张京楠郑鲲曹新宇尚欣欣叶钢
Owner INST OF CHEM CHINESE ACAD OF SCI
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