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Anti-static PVC composite material and preparation method thereof

A composite material and antistatic technology, applied in the field of antistatic PVC and its preparation, can solve the problems of the influence of the mechanical properties of the matrix material, the unstable antistatic effect of the composite material, etc. low density effect

Inactive Publication Date: 2021-01-05
陈金锁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the above methods, there is a problem of graphene agglomeration. Graphene tends to agglomerate to form graphite. A large amount of agglomeration in the PVC matrix causes the antistatic effect of the composite material to be unstable, and also has a certain impact on the mechanical properties of the matrix material.

Method used

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  • Anti-static PVC composite material and preparation method thereof
  • Anti-static PVC composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031]S1. Pretreatment of hollow glass microspheres: disperse the hollow glass microspheres (HGMs) in NaOH solution and ultrasonically treat them for 3 hours to remove the oil and impurities adsorbed on the surface of the HGMs. The HGM mixed solution is suction filtered using a Buchner funnel and NaOH is used The filter cake was washed with the solution and deionized water repeatedly, and then the filter cake was dried in a vacuum oven at 50°C for 24 hours to obtain clean HGMs powder.

[0032]S2. Preparation of graphene: Hummers method: Measure 55mL concentrated H2SO4(Mass fraction 98%) in a beaker, placed in a magnetically stirred ice water bath to cool, then add graphite powder and NaNO3, Slowly drip KMnO into the system4After reacting for 20 minutes in an ice bath, transfer the solution to a 37°C water bath for 30 minutes, and then add deionized water dropwise to the above reaction solution. After the addition is complete, put the temperature of the mixed solution at 90°C for 20 min...

Embodiment 2

[0037]S1. Pretreatment of hollow glass microspheres: Disperse the hollow glass microspheres (HGMs) in NaOH solution and ultrasonically treat them for 4.5 hours to remove the oil and impurities adsorbed on the surface of the HGMs. The HGM mixed solution is filtered with a Buchner funnel and used The filter cake was washed repeatedly with NaOH solution and deionized water, and then the filter cake was dried in a vacuum oven at 58°C for 24 hours to obtain clean HGMs powder.

[0038]S2. Preparation of graphene: Hummers method: Measure 55mL concentrated H2SO4(Mass fraction 98%) in a beaker, placed in a magnetically stirred ice water bath to cool, then add graphite powder and NaNO3, Slowly drip KMnO into the system4After reacting for 20 minutes in an ice bath, transfer the solution to a 37°C water bath for 30 minutes, and then add deionized water dropwise to the above reaction solution. After the addition is complete, put the temperature of the mixed solution at 90°C for 20 minutes, and then...

Embodiment 3

[0043]S1. Pretreatment of hollow glass microspheres: disperse the hollow glass microspheres (HGMs) in NaOH solution and ultrasonically treat them for 5.5 hours to remove the oil and impurities adsorbed on the surface of the HGMs. The HGM mixed solution is filtered with a Buchner funnel and used The filter cake was washed repeatedly with NaOH solution and deionized water, and then the filter cake was dried in a vacuum oven at 60°C for 24 hours to obtain clean HGMs powder.

[0044]S2. Preparation of graphene: Hummers method: Measure 55mL concentrated H2SO4(Mass fraction 98%) in a beaker, placed in a magnetically stirred ice water bath to cool, then add graphite powder and NaNO3, Slowly drip KMnO into the system4After reacting for 20 minutes in an ice bath, transfer the solution to a 37°C water bath for 30 minutes, and then add deionized water dropwise to the above reaction solution. After the addition is complete, put the temperature of the mixed solution at 90°C for 20 minutes, and then...

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Abstract

The invention relates to the field of PVC materials, in particular to an anti-static PVC composite material and a preparation method thereof. The preparation method comprises the following steps: dissolving activated graphene in an ethanol solution, slowly pouring a dispersion liquid of hollow glass microspheres into the ethanol solution under the conditions of heating and magnetic stirring, carrying out a water bath reaction for a period of time, centrifuging, carrying out suction filtration, washing, and drying to obtain graphene powder coated with the hollow glass microspheres, wherein theanti-static PVC composite material comprises the following components in parts by weight: 64-90 parts of PVC resin, 5-7 parts of a plasticizer, 1-4 parts of an organic tin heat stabilizer, 2-20 partsof hollow glass microsphere modified graphene powder and 2-5 parts of a processing aid, and after plastifing by a double-roller plastifying machine, then performing hot press molding by a full-automatic tablet press to obtain the antistatic PVC composite material. The method can effectively solve the problem of easy agglomeration of graphene, significantly improves the mechanical properties of PVC, adopts the ionic liquid to replace traditional plasticizers, reduces harm to human bodies, improves the anti-static properties of PVC, is simple to operate, is economical and environmentally friendly, and is expected to realize industrial production.

Description

Technical field[0001]The invention relates to the field of PVC materials, in particular to an antistatic PVC and a preparation method thereof.Background technique[0002]Polyvinyl chloride (PVC) is a thermoplastic resin formed by the polymerization of vinyl chloride. It has excellent chemical stability, excellent wear resistance and weather resistance, and excellent electrical insulation properties, fire resistance and self-rest. PVC has excellent comprehensive properties and low price , Is widely used in the world. However, due to the excellent electrical insulation properties of PVC, it is easy to accumulate static electricity due to friction during use. In the light, it will attract a large amount of dust on the surface of the PVC product and affect the appearance. In the worst case, it will cause dangerous accidents such as fire or explosion. The application of PVC in the fields of petroleum, chemical industry, dangerous goods, communications and electronics industry.[0003]Graphen...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/06C08K9/10C08K3/04C08K5/3472
CPCC08K5/3472C08K9/10C08K13/06C08L2201/04C08L2201/08C08K3/042C08L27/06
Inventor 陈金锁
Owner 陈金锁