Preparation method of master batch for graphene/PVC (Polyvinyl Chloride) composite material and master batch

A composite material and graphene technology, which is applied in the field of preparation of graphene/PVC composite material masterbatch, can solve problems such as unstable product quality, inability to fully disperse, and inability to continue production, and achieve improved mechanical properties, stable quality, The effect of no pollution to the environment

Active Publication Date: 2017-05-17
SHANDONG LUTAI HLDG GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current problems that graphene is not well dispersed in PVC materials, continuous production is impossible, and product quality is unstable, the invention provides a method for preparing a graphene/PVC composite material masterbatch and the masterbatch prepared by

Method used

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  • Preparation method of master batch for graphene/PVC (Polyvinyl Chloride) composite material and master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Take the following masterbatch components by weight, 30kg graphene.

[0050] (2) Add the material weighed in step (1) into a high-speed dispersion mixing tank with an ultrasonic vibrating rod, and add 300 kg of tetrahydrofuran into the high-speed dispersion mixing tank, and perform stirring and ultrasonic dispersion for 6 hours.

[0051] (3) Weigh 150kg of PVC powder and add it into a closed stirring tank, add 1000kg of tetrahydrofuran at the same time, adjust the temperature to 46.5°C to completely dissolve PVC.

[0052] (4) Pump the mixed liquid prepared in step (2) (3) into a closed mixing tank with a volume of 2 cubic meters, and mix well for 1 hour.

[0053] (5) Pump the mixed liquid mixed in step (4) into the closed cycle spray drying equipment under airtight conditions, adjust the temperature of the air inlet to 100°C, and the temperature of the air outlet to 55°C. The bottom of the drying tower is discharged to prepare masterbatch powder particles suitable ...

Embodiment 2

[0056] (1) Take the following masterbatch components by weight, 5kg graphene, 10kg carbon nanotubes, and 10kg carbon fibers.

[0057] (2) Add the material taken in step (1) into a high-speed dispersion mixing tank with an ultrasonic vibrating rod, and add 200 kg of a mixed solution of dichloroethane, chloroform, and acetone to the high-speed dispersion mixing tank, and stir and ultrasonically Disperse for 4 hours.

[0058] (3) Weigh 150kg of PVC powder and add it to a closed mixing tank, add 800kg of dichloroethane, chloroform, and acetone mixture at the same time, and adjust the temperature to 40°C to completely dissolve PVC.

[0059] (4) Pump the mixed liquid prepared in step (2) (3) into a closed mixing tank with a volume of 2 cubic meters, and mix well for 1 hour.

[0060] (5) Pump the mixed liquid mixed in step (4) into the closed cycle spray drying equipment under airtight conditions, adjust the temperature of the air inlet to 100°C, and the temperature of the air outle...

Embodiment 3

[0063] (1) Take the following masterbatch components by weight, 5kg graphene, 1kg carbon nanotube, 30kg carbon black.

[0064] (2) Add the material weighed in step (1) into a high-speed dispersion mixing tank with an ultrasonic vibrating rod, and add 400 kg of acetone and carbon disulfide mixed solution to the high-speed dispersion mixing tank, and stir and ultrasonically disperse for 4 hours.

[0065] (3) Weigh 150kg of PVC powder and add it to a closed mixing tank, add 900kg of acetone and carbon disulfide mixture at the same time, and adjust the temperature to 45°C to completely dissolve the PVC.

[0066] (4) Pump the mixed liquid prepared in steps (2) and (3) into a closed stirring tank with a volume of 2 cubic meters, and mix well for 0.5 hours.

[0067] (5) Pump the mixed liquid mixed in step (4) into the closed cycle spray drying equipment under airtight conditions, adjust the temperature of the air inlet to 100°C, and the temperature of the air outlet to 40°C. The bot...

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Abstract

The invention relates to a preparation method of a master batch for a graphene/PVC (Polyvinyl Chloride) composite material and the master batch. The preparation method comprises the following steps: adding graphene in a solvent, and dispersing, thus obtaining a first mixed solution; adding PVC in the solvent, and dissolving the PVC, thus obtaining a second mixed solution; drying after mixing the first mixed solution and the second mixed solution which are obtained in the first two steps, thus obtaining the master batch. According to the preparation method disclosed by the invention, the problem of dispersing the graphene in the PVC is solved, the prepared master batch can be compounded and mixed with the PVC in any proportions, and the application field of a PVC material can be expanded. According to the master batch prepared by the preparation method, the proportions of all components in the master batch can be regulated according to actual needs, so that different using effects can be achieved; the master batch can be prepared into antistatic materials, heat conduction materials and high-performance composite materials according to the purpose of the PVC material.

Description

technical field [0001] The disclosure of the present invention relates to the technical field of graphene / polymer composite materials, in particular to a method for preparing a graphene / PVC composite material masterbatch and the masterbatch. Background technique [0002] Polyvinyl chloride (PVC) is the second largest synthetic plastic in the world and has been widely used in various fields. However, due to the disadvantages of low impact strength and poor thermal stability of PVC, its application is limited to a certain extent. Therefore, the modification of PVC has attracted the attention of researchers. With the development of nanotechnology and material preparation technology, PVC modification research has made new progress. Introducing nanomaterials into PVC modification research, the modified PVC resin has excellent properties such as excellent toughness, processing fluidity, dimensional stability, thermal stability, etc., and has broad application prospects in many f...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/04C08K3/04C08K7/24C08K7/06
CPCC08K3/04C08K7/06C08K7/24C08K13/04C08K2201/014C08L2310/00C08L27/06
Inventor 薛培华栾晓波侯士峰苏伟光吕瑞江朱峰云李娜
Owner SHANDONG LUTAI HLDG GRP CO LTD
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