A kind of compound and preparation method thereof

A technology of mixing materials and nanomaterials, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, and can solve the problems of polyamide failing to enter the interlayer in time and product performance impact

Active Publication Date: 2021-01-26
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 compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] 1. Preparation of sticky material

[0085] The nano material is nano silicon oxide, the liquid medium is water, the auxiliary agent is pectin, the thermoplastic polymer is PA6, and the antiaging agent is antioxidant 264.

[0086] Nanomaterial 1 part by weight

[0087] 10 parts by weight of liquid medium

[0088] Auxiliary 0.01 parts by weight

[0089] The nanomaterials and additives are sequentially added into the liquid medium and dispersed, wherein the adding speeds of the nanomaterials and additives are respectively 0.01 g / min to obtain a sticky coating with a consistency of 5 mm.

[0090] 2. Preparation of mixture

[0091] Thermoplastic polymer 5 parts by weight

[0092] Anti-aging agent 0.005 parts by weight

[0093] The adhesive, anti-aging agent and thermoplastic polymer are mixed to obtain a compound.

[0094] 3. Preparation of nanocomposites

[0095] Melt and blend the mixed materials, wherein, the mixed materials are added to the solid conveying area of...

Embodiment 2

[0097] The nano material is nano carbon, the liquid medium is isopentane, the auxiliary agent is chitosan, the thermoplastic polymer is PP, and the antiaging agent is antioxidant TNP.

[0098] 1. Preparation of sticky material

[0099] Nanomaterial 1 part by weight

[0100] Liquid medium 5 parts by weight

[0101] Auxiliary 1.5 parts by weight

[0102] The nanomaterials and additives are sequentially added into the liquid medium and dispersed, wherein the adding speeds of the nanomaterials and additives are respectively 1 g / min to prepare a coating with a consistency of 20 mm.

[0103] 2. Preparation of mixture

[0104] 50 parts by weight of thermoplastic polymer

[0105] Anti-aging agent 0.1 parts by weight

[0106] The adhesive, anti-aging agent and thermoplastic polymer are mixed to obtain a compound.

[0107] 3. Preparation of nanocomposites

[0108] Melt and blend the mixed materials, wherein, the mixed materials are added to the solid conveying area of ​​the twin-...

Embodiment 3

[0110] The nano material is nano silicon carbide, the liquid medium is dimethylamine, the auxiliary agent is xanthan gum, the thermoplastic polymer is PC, and the antiaging agent is antioxidant 3114.

[0111] 1. Preparation of sticky material

[0112] Nanomaterial 1 part by weight

[0113] 30 parts by weight of liquid medium

[0114] Auxiliary 5 parts by weight

[0115] The nanomaterials and additives are sequentially added into the liquid medium and dispersed, wherein the adding speeds of the nanomaterials and additives are respectively 10 g / min to prepare a coating with a consistency of 50 mm.

[0116] 2. Preparation of mixture

[0117] 100 parts by weight of thermoplastic polymer

[0118] 1 part by weight of anti-aging agent

[0119] The adhesive, anti-aging agent and thermoplastic polymer are mixed to obtain a compound.

[0120] 3. Preparation of nanocomposites

[0121] Melt and blend the mixed materials, wherein, the mixed materials are added to the solid delivery ...

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Abstract

The invention relates to a kind of mixed material, which comprises thermoplastic polymer and paste-like coating on the surface of thermoplastic polymer particles. media and auxiliaries. It also relates to a method for preparing the mixture as described above, including: (1) mixing nanomaterials, liquid media and additives to prepare a paste-like adhesive coating; (2) mixing the adhesive coating with a thermoplastic polymer, The adhesive is pasted on the surface of the thermoplastic polymer particles to obtain a compound. The adhesive coating of the present invention can be added to the reaction system in a pressureless state, which is convenient for production and processing. After the adhesive coating is mixed with thermoplastic polymers, it is adhered to the surface of thermoplastic polymer particles, and the obtained mixture is added to the extruded It will not slip after being placed in a machine and other equipment, and the nanocomposite material can be directly prepared, which is convenient for production and processing, and avoids the problem of poor performance of the nanocomposite material caused by premature gasification of the liquid medium in the prior art.

Description

technical field [0001] The invention relates to a mixed material and a preparation method thereof. Background technique [0002] In the existing technology, layered 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 the poor compatibility between layered nanomaterials and polymers, As a result, the impact resistance of such materials is generally not high. [0003] In order to solve the above problems, methods such as intercalation in-situ polymerization are often used to make polymers react between layers of layered nanomaterials to improve the impact resistance of composite materials, but this process is time-consuming and the polymerization conditions are harsh. The solvent is not easy to recycle, which will bring derivative problems such as environmental pollution. [0004] Patent No. CN101081928A, proposed a kind of preparation method of polyamide / nano...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L23/12C08L69/00C08L71/12C08L55/02C08L59/02C08L5/06C08L5/08C08L5/00C08L33/02C08L79/08C08L61/22C08K3/36C08K3/04C08K3/34C08K3/22C08K3/02B82Y30/00C08J3/205
CPCB82Y30/00C08J3/2053C08K2003/221C08K2201/011C08L23/12C08L55/02C08L59/02C08L69/00C08L71/12C08L77/02C08L5/06C08K3/36C08L5/08C08K3/04C08L5/00C08K3/34C08L33/02C08K3/22C08L79/08C08K3/041C08L61/22C08K3/02
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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