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Thermoplastic vulcanized rubber nanocomposite and production method thereof

A nano-composite material and thermoplastic vulcanization technology, applied in the field of nano-composite materials, 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...

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  • Thermoplastic vulcanized rubber nanocomposite and production method thereof
  • Thermoplastic vulcanized rubber nanocomposite and production method thereof

Examples

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Embodiment 1

[0087] In this embodiment, the thermoplastic vulcanizate is EPDM / 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 chlorinated Sodium octadecyl sulfate, the nano material that adopts is nano-praseodymium oxide, prepares nano-composite material according to the following method:

[0088] (1) The liquid medium is stirred, and the nanomaterial is added at a speed of 4.2g / min to continuously stir and disperse evenly, and the weight ratio of the liquid medium to the nanomaterial is 16:1;

[0089] (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 30mm, and the additives and nanomaterials The weight ratio is 10:1;

[0090] (3) mixing the paste obtained in step (2) with thermoplastic vulcanizate to obtain a premix;

[0091] (4) The ...

Embodiment 2

[0095] In this embodiment, the thermoplastic vulcanizate is EPDM / 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 used is methanol and water, and the mixture of methanol and water The mass ratio is 8:92, the additives adopted are casein and polyaspartic acid, and the weight ratio is 1:2, the nanomaterial used is nano-zinc oxide, and the nanocomposite material is prepared according to the following method:

[0096] (1) The liquid is stirred, and the nanomaterial is added at a speed of 10g / min to continuously stir and disperse evenly, and the weight ratio of the liquid medium to the nanomaterial is 100:1;

[0097] (2) Add auxiliary agent to the continuous stirring solution of step (1) with the speed of 0.5g / min, obtain paste, the consistency of described paste is 26mm, and the weight ratio of described auxiliary agent and nanometer material is 10:1;

[0098] (3) mixing the pas...

Embodiment 3

[0103] In this embodiment, the thermoplastic vulcanizate is EPDM / 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 water-soluble Phenolic resin, 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:

[0104] (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;

[0105] (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 73mm, and the weight ratio of the additives to nanomaterials is 6 :1;

[0106] (3) mixing the paste obtained in step (2) with thermoplastic vulcanizate to obtain a premix;

[...

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Abstract

The invention relates to the field of nanocomposite, in particular to thermoplastic vulcanized rubber nanocomposite and a production method thereof. The nanocomposite is produced by conducting melt blending on a premix, wherein the premix is formed by filling thermoplastic vulcanized rubber particles with a nanometer material in combination with a liquid medium and adhering the nanometer materialin combination with the liquid medium to the thermoplastic vulcanized rubber particles, and the thermoplastic vulcanized rubber comprises non-polar plastic and non-polar rubber. The production methodcomprises the steps of mixing the liquid medium and the nanometer material to obtain a paste, and adhering the paste to the surfaces of the thermoplastic vulcanized rubber particles for melt blendingto obtain the nanocomposite. The provided nanocomposite has excellent tenacity, and is short in technology process, low in cost and suitable for use and popularization.

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): C08L23/16C08L23/12C08L7/02C08L23/22C08K3/36C08K3/04C08K3/22
CPCC08K2003/221C08K2003/2227C08K2003/2241C08K2003/2296C08K2201/011C08L7/02C08L23/12C08L23/16C08L23/22C08K3/22C08L23/06C08K3/046C08K3/36
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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