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Preparation method of static-conductive PVC (polyvinyl chloride) mining pipe

A technology of static conduction and PVC resin, which is applied in the field of preparation of static conduction PVC mine pipes, which can solve the problems of uneven resistance distribution of static conduction mine pipes, large amount of carbon nanotubes added, and poor differentiation, and achieve low price , Conducive to cost, improve the effect of conductivity

Active Publication Date: 2017-02-22
DEYANG CARBONENE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual application process of this patent, due to the large aspect ratio of carbon nanotubes, it is easy to be entangled and the difference is extremely poor, so it is very easy to cause uneven resistance distribution of the prepared static conductive mine tubes, and the carbon nanotubes The amount of pipe added is too large, resulting in higher cost

Method used

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  • Preparation method of static-conductive PVC (polyvinyl chloride) mining pipe

Examples

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Effect test

Embodiment 1

[0030] A preparation method of static-conductive PVC mine pipe, comprising the steps of:

[0031] (1) Add PVC resin and powder nano-carbon material with two-dimensional planar structure into a kneader and knead to obtain PVC / nano-carbon masterbatch; wherein, the nano-carbon material is graphene, few-layer graphene or graphite nano The graphene refers to the graphene powder with 1-2 layers, and the few-layer graphene refers to the graphene powder with 2-10 layers.

[0032] The specific process of this step is: first add PVC resin into the kneader, then add the nano-carbon material into the kneader several times at room temperature for pre-coating kneading, the time of pre-coating kneading is 10min-2h, Then knead at 80-100°C for 1-5 hours to obtain a PVC / nano-carbon masterbatch with a nano-carbon material content of 5%-20%.

[0033] (2) Take 5-15 parts by mass of PVC / nano-carbon masterbatch and add it to the reactor, then add 75-85 parts of PVC resin and 0.5-1.5 parts of conduc...

Embodiment 2

[0036] A preparation method of static-conductive PVC mine pipe, comprising the steps of:

[0037](1) First add a certain quality of PVC resin into the kneader, and then add a certain quality of graphene powder into the kneader three times at room temperature for pre-coating and kneading. The pre-coating and kneading time is 10 minutes. Then kneading at 80° C. for 1 h to obtain a PVC / nano-carbon masterbatch with a graphene content of 5%.

[0038] (2) Take 5 parts by mass of PVC / nano-carbon masterbatch and add it to the reactor, then add 85 parts of PVC resin, 1.5 parts of conductive carbon black, and 5 parts of chlorinated polyethylene to the PVC / nano-carbon masterbatch , 1 part of barium laurate, 0.5 part of stearic acid and 2 parts of acrylic polymer; after adding each component, first stir and mix in the reactor at a rate of 1r / min for 3min, and then at a rate of 300r / min Stir and mix for 5 minutes. When stirring and mixing, control the temperature of the material below 120...

Embodiment 3

[0040] A preparation method of static-conductive PVC mine pipe, comprising the steps of:

[0041] (1) First add a certain quality of PVC resin into the kneader, and then add a certain quality of graphene powder into the kneader four times at room temperature for pre-coating and kneading. The pre-coating and kneading time is 2h , and then kneaded at 100°C for 5h to obtain a PVC / nanocarbon masterbatch with a graphene content of 20%.

[0042] (2) Take 15 parts by mass of PVC / nano-carbon masterbatch and add it to the reactor, then add 75 parts of PVC resin, 0.5 parts of conductive carbon black, methyl methacrylate to the PVC / nano-carbon masterbatch— 1 part of butadiene-styrene copolymer, 5 parts of zinc stearate, 3 parts of glyceryl stearate and 0.5 part of thermoplastic polyurethane; after adding each component, first stir in the reaction kettle at a speed of 300r / min Mix for 5 minutes, then stir and mix at a rate of 2000r / min for 20 minutes. When stirring and mixing, control th...

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Abstract

The invention discloses a preparation method of a static-conductive PVC (polyvinyl chloride) mining pipe. The method comprises the following steps: (1) adding a PVC resin and a two-dimensional-plane-structure nano carbon material into a kneader, and kneading to obtain a PVC / nano carbon master batch; and (2) proportionally adding the PVC resin, conductive carbon black, a compatibilizer, a heat stabilizer, lubricant and processing aids into the PVC / nano carbon master batch, stirring and mixing, and carrying out melting and extrusion forming to obtain the mining pipe finished product. The method can enhance the static conductivity of the PVC mining pipe, and can also enhance the impact resistance, corrosion resistance, heat stability and other properties of the PVC mining pipe.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a preparation method of a static-conductive PVC mining pipe. Background technique [0002] For a long time, the coal mine industry has used cast iron pipes for drainage, ventilation, and dust collection; however, due to the problems of easy corrosion, inconvenient handling, installation, and high cost of cast iron pipes, there is an urgent need for a new type of pipe to replace cast iron pipes. Vinyl chloride resin is one of the earliest synthetic resins to realize industrial production in the world. It has the characteristics of high mechanical strength, chemical corrosion resistance, wear resistance, low price, light weight, good flame retardancy and easy installation. PVC is a good insulator with extremely poor conductivity. In coal mines and other places where static electricity is prone to be generated, it will cause gas explosion or fire due to the accumulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/04C08K7/18C08K3/04C08J3/22
CPCC08J3/226C08J2327/06C08J2427/06C08K2201/001C08K2201/011C08L27/06C08L2201/04C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L2205/08C08K13/04C08K7/18C08K3/04
Inventor 姚林何洪泉尹天平高华
Owner DEYANG CARBONENE TECH
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