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Preparation method of polysilane-molybdenum disulfide sandwich composite material

A technology of molybdenum disulfide and composite materials, which is applied in chemical instruments and methods, dyed organic silicon compound treatment, dyed low-molecular organic compound treatment, etc., can solve the problems of poor compatibility of polysilane-molybdenum disulfide composite materials, and achieve Solve the problems of dispersibility and compatibility, and the effect of simple preparation method

Inactive Publication Date: 2017-12-29
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention will solve the problem of poor compatibility of polysilane-molybdenum disulfide composite material, and provide the preparation method of polysilane-molybdenum disulfide interlayer composite material

Method used

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  • Preparation method of polysilane-molybdenum disulfide sandwich composite material
  • Preparation method of polysilane-molybdenum disulfide sandwich composite material

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specific Embodiment approach 1

[0017] Specific embodiment one: this embodiment is the preparation method of polysilane-molybdenum disulfide interlayer composite material, specifically completes according to the following steps:

[0018] 1. Preparation of soluble polysilane: soluble polysilane was prepared by using Woods synthesis method under nitrogen atmosphere with metal sodium, toluene and silane monomer solution as raw materials;

[0019] Two, the preparation of polysilane-tetrahydrofuran solution: soluble polysilane is dissolved in tetrahydrofuran, is mixed with polysilane-tetrahydrofuran solution; The quality of the soluble polysilane described in step 2 and the volume ratio of tetrahydrofuran are 1g:(10~100 ) mL;

[0020] 3. Preparation of alkyllithium-molybdenum disulfide interlayer: first, dry molybdenum disulfide under vacuum at a temperature of 50-80°C for 1h-20h to obtain dry molybdenum disulfide; dry the dried molybdenum disulfide under nitrogen protection Add molybdenum into the alkyllithium-...

specific Embodiment approach 2

[0025] Specific implementation mode two: the difference between this implementation mode and specific implementation mode one is: in step one, the specific operation process is as follows:

[0026] Add metal sodium to toluene under nitrogen atmosphere, heat the temperature at 100°C to 110°C, keep the reaction system in a reflux state, add silane monomer solution dropwise when the metal sodium floats up and melts into sodium sand, and control the drop rate to 1mL / min ~1.5mL / min, heating and reflux reaction at 80~120℃ for 3h~10h, after the end, naturally cool to room temperature, carry out solid-liquid separation to obtain the filtrate, use a rotary evaporator to concentrate the volume of the filtrate to 1 / of the original volume 20 to 1 / 2 to obtain a concentrated solution. Dissolve the concentrated solution in tetrahydrofuran, add a reaction terminator, then stir for 3h to 24h, filter, wash, and vacuum dry at a temperature of 50 to 80°C for 1h to 24h to obtain a soluble Polysil...

specific Embodiment approach 3

[0031] Specific embodiment three: the difference between this embodiment and specific embodiment two is: the silane monomer is dimethyldichlorosilane, methylphenyldichlorosilane, diphenyldichlorosilane and methylethylene One or two of the base dichlorosilanes. Others are the same as in the second embodiment.

[0032] Step 1 reaction mechanism:

[0033] Step 3 reaction mechanism: BuLi+MoS 2 →MoS 2 (BuLi);

[0034] Step 4 reaction mechanism: MoS 2 (BuLi)+H2O→MoS 2 +LiOH+BuH↑;

[0035] Step five reaction mechanism:

[0036] When the silane monomer is a mixture of two substances in dimethyldichlorosilane, methylphenyldichlorosilane, diphenyldichlorosilane and methylvinyldichlorosilane, the two substances are optionally Than mixed.

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Abstract

The invention provides a preparation method of a polysilane-molybdenum disulfide sandwich composite material, relating to a preparation method of a molybdenum disulfide sandwich composite material. The preparation method provided by the invention aims at solving the problem that compatibility of the polysilane-molybdenum disulfide composite material is poor. The preparation method comprises the following steps of: firstly, preparing soluble polysilane; secondly, preparing a polysilane-tetrahydrofuran solution; thirdly, preparing lithium alkyl-molybdenum disulfide sandwich; fourthly, preparing single-layer molybdenum disulfide dispersion liquid; and fifthly, carrying out sandwich reaction, so that the polysilane-molybdenum disulfide sandwich composite material is obtained. The preparation method provided by the invention has the advantages that the polysilane-molybdenum disulfide sandwich composite material have excellent properties of polysilane and molybdenum disulfide, the problems of dispersibility and compatibility in a preparation process of the polysilane-molybdenum disulfide composite material are better solved, and the preparation method is simple and has potential application value in the aspects of conductive materials, wear-resistant materials and the like. The preparation method provided by the invention is mainly used for preparing the polysilane-molybdenum disulfide sandwich composite material.

Description

technical field [0001] The invention relates to a preparation method of a molybdenum disulfide interlayer composite material. Background technique [0002] Polyethylene, polypropylene, polystyrene and other organic polymers are often used as the basic components of plastics, and most of them are electrical insulating materials. However, their products will generate static electricity during production, transportation, storage and use, making the products dust-absorbing and difficult to clean. Forming processing has greatly affected the application of polystyrene and other organic polymer materials. Therefore, it is of great significance to add a type of conductive filler, such as molybdenum disulfide, to prepare a composite material such as polyolefin-molybdenum disulfide, so that its resistivity is moderately reduced, so that it has a certain antistatic property. However, when conductive fillers such as molybdenum disulfide are added to organic polymers, since the two mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00C09C3/12C09C3/08C08K9/06C08K3/30C08G77/60
CPCC08G77/60C08K3/30C08K9/08C08K2003/3009C09C1/0003C09C3/006C09C3/08C09C3/12
Inventor 尚岩郑搏英张桂玲
Owner HARBIN UNIV OF SCI & TECH
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