Graphene composite PE material and preparation method thereof

A graphene composite and graphene technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve problems such as low regularity of composite resin particles, low utilization rate of free radical initiators, and poor product quality , to achieve good mechanical properties and barrier properties, improved antistatic properties, and good dispersion effects

Active Publication Date: 2022-03-11
ANHUI LIANJIAXIANG SPECIAL CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The results show that directly adding particles to the suspension polymerization system leads to low particle regularity of the synthesized composite resin, and low oil-water ratio leads to low yield, low utilization rate of free radical initiator, high final production consumption and high product quality. not good

Method used

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  • Graphene composite PE material and preparation method thereof
  • Graphene composite PE material and preparation method thereof

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preparation example Construction

[0030] Preparation of Graphene Oxide: Using the Modified Hummers Method

[0031] Step 1. Weigh 10g of natural graphite powder (G), 4g of potassium persulfate, and 10g of phosphorus pentoxide, and add them into a three-necked flask containing 24mL of sulfuric acid while stirring, and react in a constant temperature water bath at 60°C for 3h. Then move the three-necked flask into a constant temperature water bath at 25°C to react for 5 hours, filter with suction, wash with ionized water to neutrality, and dry in air to obtain pre-oxidized graphite (P-G);

[0032] Step 2, take by weighing 1g of pre-oxidized graphite, add in the there-necked flask that 25mL sulfuric acid is housed under the situation of stirring, put into ice-water bath, after pre-oxidized graphite is all dissolved, add the potassium permanganate of 3g, react 2h, and then moved the three-neck flask into a constant temperature water bath at 35°C for 40min, then added deionized water, continued to react at 35°C for ...

Embodiment 1

[0034] The present embodiment provides a kind of preparation method of graphene composite PE material, comprises the following steps:

[0035]S1. After dissolving 10g of graphene oxide in 100mL of 25wt% ethanol aqueous solution, it is spray-dried. The spray-drying conditions are as follows: the inlet air temperature is 80°C, the outlet air temperature is 30°C, the evaporation water is 1500mL / h, and the fineness is over 100 mesh sieve to obtain wrinkled graphene oxide; figure 1 It is the SEM picture of the wrinkled graphene oxide prepared by the present invention, as can be seen from the figure, a wrinkled structure is formed.

[0036] S2. Add 10g of the wrinkled graphene oxide prepared in step S1 into 100mL of water, disperse with 1000W ultrasonic for 30min, add 3g of 25wt% ammonia water and 1g of hydrazine hydrate, heat and stir for reaction, the heating temperature is 80°C, the time is 1h, filter and wash , to obtain wrinkled graphene;

[0037] S3. Disperse 10g of the wrin...

Embodiment 2

[0041] The present embodiment provides a kind of preparation method of graphene composite PE material, comprises the following steps:

[0042] S1. After dissolving 10g of graphene oxide in 100mL of 45wt% ethanol aqueous solution, it is spray-dried. The spray-drying conditions are as follows: the inlet air temperature is 100°C, the outlet air temperature is 80°C, the evaporation water is 2000mL / h, and the fineness is over 100 mesh sieve to obtain wrinkled graphene oxide;

[0043] S2. Add 10g of the wrinkled graphene oxide prepared in step S1 into 100mL of water, disperse with 1000W ultrasonic for 30min, add 7g of 30wt% ammonia water and 3g of hydrazine hydrate, heat and stir for reaction, the heating temperature is 100°C, the time is 3h, filter and wash , to obtain wrinkled graphene;

[0044] S3. Evenly disperse 10g of the wrinkled graphene prepared in step S2 in 100mL of 80wt% ethanol aqueous solution, add a compound mixture of 1.5g of silane coupling agent KH570 and 1g of si...

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Abstract

The invention provides a graphene composite PE material and a preparation method thereof, and belongs to the technical field of PE materials. Comprising the following steps: S1, preparing wrinkled graphene oxide; s2, preparing a wrinkled graphene forehead; s3, preparing the modified folded graphene; s4, preparing a premix; and S5, preparing the graphene composite PE material. The graphene composite PE material prepared by the invention has good mechanical property and barrier property, the antistatic property is obviously improved, the dispersion effect of graphene is good, and the graphene composite PE material has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of PE materials, in particular to a graphene composite PE material and a preparation method thereof. Background technique [0002] Graphene is a two-dimensional nanomaterial, which is a single-layer two-dimensional material composed of carbon atoms connected by sp2 hybridization. Due to this special structure, graphene has many excellent properties that other nanomaterials do not have, such as extremely high mechanical strength, excellent electrical and thermal conductivity, and large specific surface area. These properties make graphene an ideal two-dimensional nanofiller for the preparation of high-performance polymer nanocomposites. It can improve the electrical conductivity, mechanical properties and thermal stability of the polymer, so that it has high application value in the field of polymer composite materials. [0003] Polyethylene (PE) is a type of polymer material with the simplest structure and...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/06C08K9/06C08K3/04C01B32/194
CPCC08L23/06C01B32/194C08L2201/14C08L2201/04C08L51/06C08K9/06C08K3/042
Inventor 张荣淼
Owner ANHUI LIANJIAXIANG SPECIAL CABLE
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