Graphene reinforced PVC pipe and preparation method thereof

A PVC pipe and graphene technology, applied in the field of polymer materials, can solve the problems of material becoming brittle, reducing material toughness, and failing to enhance the effect, so as to achieve the effect of reducing agglomeration and enhancing effect

Pending Publication Date: 2021-11-12
ZHEJIANG TONGZHENG PIPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two-dimensional sheet structure of graphene makes it easy to agglomerate in polymer materials, which not only does not achieve a good strengthening effect, but also causes the material to become brittle and reduce toughness.
In order to improve the dispersion effect of graphene in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] (1) Preparation of graphene dispersion liquid

[0022] Take the following raw materials: graphene 0.05 kg, 0.952 kg of water, 0.048 kg of alcohol and 0.0025 kg sodium dodecyl benzene sulfonate.

[0023] Preparation method: Sodium graphene and dodecyl benzene sulfonate were added to the mixed solution of water and alcohol, and then placed in an ultrasonic disperser, and the ultrasonic dispersion was performed while stirring, the time was 10 min, and the graphene dispersion was obtained.

[0024] (2) Material mixing:

[0025] Take the following materials: PVC resin 100kg, calcium zinc stabilizer 3.5 kg, graphene dispersion 1.0525 kg (graphene 0.05 kg), chlorinated polyethylene 1 kg, lubricant 1.2 kg, calcium carbonate 15 kg and processing auxiliary agent 1.5 kg.

[0026] The above materials (except graphene dispersion) are invested in a high-speed mixer, mixed with 3 min under low speed conditions of 475 rpm, and put graphene dispersion during the mixing pr...

Example Embodiment

[0028] Example 2

[0029] (1) Preparation of graphene dispersion liquid

[0030] Take the following raw materials: graphene 0.1 kg, 2.86 kg of water, 0.005 kg of alcohol 0.14 kg and sodium dodecyl benzene sulfonate.

[0031] Preparation method: Sodium graphene and dodecyl benzene sulfonate were added to the mixed solution of water and alcohol, and then placed in an ultrasonic disperser, while stirring, ultrasonic dispersion was performed, and the time was 15 min to obtain a graphene dispersion.

[0032] (2) Material mixing:

[0033] Take the following materials: PVC resin 100kg, calcium zinc stabilizer 3.8kg, graphene dispersion 3.105 kg (graphene 0.1 kg), chlorinated polyethylene 1.0 kg, lubricant 1.0 kg, calcium carbonate 15 kg and processing aid 0.3 kg.

[0034] The above materials (except graphene dispersion) are put into the high speed mixer, mixed with 3 min under low speed conditions of 475 rpm, and put graphene dispersion during mixing, and then perform high speed (1200 rp...

Example Embodiment

[0036] Example 3

[0037] (1) Preparation of graphene dispersion liquid

[0038] Take the following raw materials: graphene 0.4 kg, water 3.81kg, 0.02 kg of wine 0.19 kg and sodium dodecyl benzene sulfonate.

[0039] Preparation method: Sodium graphene and dodecyl benzene sulfonate were added to the mixed solution of water and alcohol, and then placed in an ultrasonic dispersion, while stirring, ultrasonic dispersion was carried out, and the time was 20 min to obtain a graphene dispersion.

[0040] (2) Material mixing:

[0041] The following materials: PVC resin 100kg, calcium zinc stabilizer 4.2 kg, graphene dispersion 4.42 kg (graphene 0.4 kg), chlorinated polyethylene 2.0 kg, lubricant 1.2 kg, calcium carbonate 18 kg and processing aid 4.0 kg.

[0042] The above materials (except graphene dispersion) are put into the high speed mixer, mixed with 3 min under low speed conditions of 475 rpm, and put graphene dispersion during mixing, and then perform high speed (1200 rpm) mixing,...

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PUM

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Abstract

The invention belongs to the field of high polymer materials, and particularly relates to a graphene reinforced PVC pipe and a preparation method thereof. The graphene reinforced PVC pipe is prepared from the following components in parts by weight: 100 parts of PVC resin, 3 to 5 parts of calcium-zinc stabilizer, 0.01 to 0.5 part of graphene, 0.5 to 5 parts of chlorinated polyethylene, 0.5 to 2 parts of lubricant, 5 to 25 parts of calcium carbonate and 0.5 to 4 parts of processing aid. The preparation method of the graphene reinforced PVC pipe comprises the following steps: preparing a graphene dispersion liquid; mixing the materials; and extrusion molding. Graphene is dispersed in a mixed solution of water and alcohol through an ultrasonic dispersion method in advance, then the graphene dispersion liquid, PVC and other materials are mixed through a mechanical high-speed mixing method, water and alcohol are volatilized in the mixing process, uniform dispersion of graphene in PVC is achieved, and the agglomeration effect of graphene is reduced. With application of the method, under the condition of very low graphene content, graphene has an obvious enhancement effect on PVC.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a graphene-reinforced PVC pipe and a preparation method thereof. Background technique [0002] Graphene is a two-dimensional sheet structure with excellent physical properties. The strength of graphene is the highest among the tested materials, reaching 130GPa, which is more than one hundred times that of steel. Adding it to polymer materials can greatly improve the mechanical strength of the material. However, the two-dimensional sheet structure of graphene makes it easy to agglomerate in polymer materials, which not only fails to achieve a good strengthening effect, but also causes the material to become brittle and reduce its toughness. In order to improve the dispersion effect of graphene in polymer materials, modifying the surface of graphene can enhance the interaction between graphene and polymers, but there will still be some graphene sheets self-agglomerated...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/28C08K3/04
CPCC08L27/06C08L2203/18C08L23/286C08K3/042
Inventor 崔成华徐辛钱功海
Owner ZHEJIANG TONGZHENG PIPE TECH
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