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Preparation method of graphene/butyl rubber composite masterbatch and composite material

A technology of butyl rubber and composite materials, which is applied in the field of preparation of graphene/butyl rubber composite masterbatch and composite materials, can solve the problems of environmental protection and long time consumption, and achieve reduced preparation time, easy operation and good mechanical properties Effect

Active Publication Date: 2019-11-05
成都创威新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole process takes a long time and uses toxic substances such as hydrazine hydrate, which is not conducive to environmental protection

Method used

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  • Preparation method of graphene/butyl rubber composite masterbatch and composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, the preparation of graphene / butyl rubber composite masterbatch

[0021] After dehydration and purification, 3500g of methyl chloride, 820g of isobutene, and 25g of isoprene were cooled to -100°C in a cooler, sent into the reactor, and stirred with a strong mechanical stirrer. 30g AlCl 3 Dissolve in 200ml of methyl chloride, cool to -100°C in a cooler, and send it into a reactor for polymerization to obtain a polymer, which precipitates in methyl chloride to form a granular slurry.

[0022] Slurry liquid is sent to fill 5000ml liquid temperature in the flash tank of 2% (mass fraction) graphene solution of 60 ± 5 ℃, evaporates methyl chloride and unreacted monomer, obtains graphene / butyl rubber slurry liquid, Send the slurry into an extruder, squeeze out the water, and dry it to a constant weight at a vacuum degree of 0.09 MPa and a temperature of 120° C. to obtain a butyl rubber / graphene composite masterbatch.

Embodiment 2

[0023] Embodiment 2, the preparation of graphene / butyl rubber composite material

[0024] The butyl rubber / graphene composite masterbatch prepared by 500g embodiment 1, 2kg butyl rubber, 125g zinc oxide, 75g stearic acid, 75g sulfur, 14g diphenylguanidine, 7.5g dibenzothiazole disulfide, 37.5g N-cyclohexyl-2-benzothiazole sulfenamide, mixed evenly by double rollers, the time is 40 minutes, and the butyl rubber / graphene composite material is prepared by molding vulcanization, the vulcanization temperature is 180 ° C, and the vulcanization time is 70 minutes .

Embodiment 3

[0025] Embodiment 3, the preparation of graphene / butyl rubber composite material

[0026] After dehydration and purification, 3500g of methyl chloride, 820g of isobutene, and 25g of isoprene were cooled to -100°C in a cooler, sent into the reactor, and stirred with a strong mechanical stirrer. 30g AlCl 3 Dissolve in 200ml of methyl chloride, cool to -100°C in a cooler, and send it into a reactor for polymerization to obtain a polymer, which precipitates in methyl chloride to form a granular slurry.

[0027] Slurry liquid is sent to fill 5000ml liquid temperature in the flash tank of 0.2% (mass fraction) graphene solution of 60 ± 5 ℃, evaporates methyl chloride and unreacted monomer, obtains graphene / butyl rubber slurry liquid, Send the slurry into an extruder, squeeze out the water, and dry it to a constant weight at a vacuum degree of 0.09 MPa and a temperature of 120° C. to obtain a butyl rubber / graphene composite masterbatch.

[0028] 500g of the above butyl rubber / graphe...

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Abstract

The invention provides a preparation method of a graphene / butyl rubber composite masterbatch. The preparation method comprises the following steps: (1) reacting isobutene with isoprene in the presenceof methyl chloride and AlCl3 at the temperature of minus 100 DEG C to minus 90 DEG C so as to obtain slurry; and (2) mixing the slurry with a graphene aqueous solution at the temperature of 25-85 DEGC, and conducting flashing and drying to obtain the graphene / butyl rubber composite masterbatch. The invention also provides a graphene / polymer composite material. Experimental results prove that thepreparation method disclosed by the invention is short in consumed time, simple and convenient to operate, and safe and environment-friendly in preparation process, and the graphene / butyl rubber composite material prepared by the invention also has good mechanical properties and is quite suitable for industrial production.

Description

technical field [0001] The invention relates to a graphene / butyl rubber composite masterbatch and a preparation method and application of the composite material. Background technique [0002] Graphene is a new carbonaceous material with a two-dimensional honeycomb lattice structure formed by the close packing of sp2 hybridized carbon atoms, with a thickness of one or more atomic layers. According to the number of layers, it can be divided into one or more layers of graphene. The theoretical research on graphene has a history of more than 60 years. Until 2004, two-dimensional graphene sheets that can truly exist independently were obtained by Novoselov from the University of Manchester in the United Kingdom by using tape to peel off highly oriented graphite. Due to the excellent mechanical properties, electrical properties and thermal properties of graphene, there are many reports on graphene / polymer composite materials, such as graphene fillers have been successfully disper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08K13/02C08K3/04C08J3/22
CPCC08J3/226C08L23/22C08J2323/22C08L2205/025C08K13/02C08K3/042
Inventor 夏和生叶平
Owner 成都创威新材料有限公司