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Thermoplastic vulcanized rubber nano composite material and preparation method thereof

A nano-composite material and thermoplastic vulcanization technology, which is applied in the field of nano-composite materials, can solve the problems of product performance impact, polyamide failure to enter the interlayer in time, 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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  • Thermoplastic vulcanized rubber nano composite material and preparation method thereof
  • Thermoplastic vulcanized rubber nano composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0086] In this embodiment, the thermoplastic vulcanizate is EPDM / PA6, 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 water-soluble Alkyd resin, the nano-material adopted is nano-praseodymium oxide, and the nano-composite material is prepared according to the following method:

[0087] (1) The liquid medium is stirred, and the nanomaterial is added at a speed of 3.5g / min to continuously stir and disperse evenly, and the weight ratio of the liquid medium to the nanomaterial is 14:1;

[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 40mm, and 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) The premix of step (...

Embodiment 2

[0094] In this embodiment, the thermoplastic vulcanizate is EPDM / PA6, 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 pyridine and water, and the mixture of pyridine and water The mass ratio is 1:4, the additives used are gellan gum and hyaluronic acid, the weight ratio is 1:2, the nanomaterial used is nano zinc oxide, and the nanocomposite material is prepared as follows:

[0095] (1) The liquid is stirred, and the nanomaterial is added at a speed of 15g / min to continuously stir and disperse evenly, and the weight ratio of the liquid medium to the nanomaterial is 90:1;

[0096] (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 58mm, and the weight ratio of the additives to nanomaterials is 10 :1;

[0097] (3) mixing the paste obtained in step (2) with thermoplastic vulcanizate to obtain a p...

Embodiment 3

[0102] In this embodiment, the thermoplastic vulcanizate is EPDM / PA6, wherein the rubber-to-plastic ratio is 50 / 50, the mass ratio of the nanometer material to the thermoplastic vulcanizate is 1:10, the liquid medium used is water, and the auxiliary agent used is polydimethylsiloxane Methyldiallyl ammonium chloride, the nano material that adopts is nano-titanium dioxide and nano-alumina, and mass ratio is 8:2, prepares nano-composite material according to the following method:

[0103] (1) The liquid medium is stirred, and the nanomaterial is added at a speed of 0.01g / min to continuously stir and disperse evenly, and the weight ratio of the liquid medium to the nanomaterial is 0.1:1;

[0104] (2) Add auxiliary agent to the continuous stirring solution of step (1) at a speed of 15g / min to obtain a paste, the consistency of the paste is 73mm, and the weight ratio of the auxiliary agent to nanomaterial is 4.5 :1;

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

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Abstract

The invention relates to the field of nano composite materials, and in particular relates to a thermoplastic vulcanized rubber nano composite material and a preparation method thereof. The nano composite material is obtained 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 thermoplastic vulcanized rubber particles, and the thermoplastic vulcanized rubber comprises a polar plastic and nonpolar rubber. 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 thermoplastic vulcanized rubber 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 and use.

Description

technical field [0001] The invention relates to the field of nanocomposite materials, in particular to a thermoplastic vulcanizate 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. ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L77/02C08L67/08C08L5/08C08L39/00C08K3/22C08K7/06
CPCC08L23/16C08L77/02C08K2003/221C08K2201/011C08K2003/2296C08K2003/2241C08K2003/2227C08L2205/03B29C2948/92704B29C48/92C08L67/08C08K3/22C08L5/08C08L39/00C08K7/06
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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