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Graphene pre-dispersed master batch as well as preparation method and application thereof

A pre-dispersed masterbatch and graphene technology, which is applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve the problems of difficult dispersion and large amount of graphene, and achieve the effect of low cost, reduced amount, and easy storage

Inactive Publication Date: 2016-11-16
NINGBO ACTMIX POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first technical problem to be solved by the present invention is to provide a graphene pre-dispersed masterbatch for the difficulty of dispersing graphene in rubber and the problem of large dosage. The graphene pre-dispersed masterbatch is convenient for storage and transportation And weighing, can effectively improve the utilization rate of graphene, reduce the amount of graphene in rubber products, reduce costs, and ensure that graphene can be evenly dispersed in subsequent rubber products, thus effectively solving the problem of graphene dispersion in rubber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The graphene pre-dispersed masterbatch of embodiment one, by weight, its percentage by weight consists of: graphene 35%, acrylate rubber 31%, silane coupling agent 8%, calcium stearate 4%, ring 7% paraffin oil, 15% inorganic filler. The preparation method of this graphene pre-dispersed master batch, comprises the following steps:

[0025] (1) Accurately weigh the raw materials required for the preparation of masterbatch according to the proportion;

[0026] (2) Heat the internal mixer to 70 °C, first put graphene into the internal mixer, then put in silane coupling agent, stir at a stirring speed of 125 r / min for 3 minutes, then put in acrylate rubber, and stir at 220 r / min Stir at a stirring speed of 100 r / min for 2 minutes, finally add calcium stearate, naphthenic oil and inorganic fillers, stir for 3 minutes at a stirring speed of 100 r / min, mix the raw materials evenly, and discharge at a temperature of 80 ° C to obtain Gum;

[0027] (3) The given rotational spee...

Embodiment 2

[0028] The graphene pre-dispersed masterbatch of embodiment two, by weight, its percentage by weight consists of: graphene 50%, EPDM rubber 20%, silane coupling agent 6%, calcium stearate 6% , naphthenic oil 8%, inorganic filler 10%. The preparation method of this graphene pre-dispersed master batch, comprises the following steps:

[0029] (1) Accurately weigh the raw materials required for the preparation of masterbatch according to the proportion;

[0030] (2) Heat the internal mixer to 80 °C, first put graphene into the internal mixer, then put in silane coupling agent, stir at a stirring speed of 150 r / min for 1 minute, and then put in EPDM rubber to Stir at a stirring speed of 230 r / min for 2 minutes, finally add calcium stearate, naphthenic oil and inorganic fillers, stir at a stirring speed of 110 r / min for 5 minutes to mix all raw materials evenly, and discharge at a temperature of 85 °C , get rubber;

[0031] (3) The given rotational speed of the control host is 80 r...

Embodiment 3

[0032] The graphene pre-dispersed masterbatch of embodiment three, by weight, its percentage by weight consists of: graphene 45%, styrene-butadiene rubber 17%, silane coupling agent 5%, calcium stearate 7%, ring 10% paraffin oil, 16% inorganic filler. The preparation method of this graphene pre-dispersed master batch, comprises the following steps:

[0033] (1) Accurately weigh the raw materials required for the preparation of masterbatch according to the proportion;

[0034] (2) Heat the internal mixer to 70 °C, first put graphene into the internal mixer, then put in silane coupling agent, stir at a stirring speed of 130 r / min for 2 minutes, then put in styrene-butadiene rubber, and stir at 200 r / min Stir at a stirring speed of 100 r / min for 3 minutes, finally add calcium stearate, naphthenic oil and inorganic fillers, stir for 6 minutes at a stirring speed of 100 r / min, mix the raw materials uniformly, and discharge at a temperature of 80 ° C to obtain Gum;

[0035] (3) T...

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Abstract

The invention discloses a graphene pre-dispersed master batch. The graphene pre-dispersed master batch is prepared from the following components in percentage by weight: 10 to 60 percent of graphene, 9 to 36 percent of rubber carrier, 3 to 10 percent of silane coupling agent, 2 to 8 percent of calcium stearate, 5 to 12 percent of naphthenic oil and 5 to 25 percent of inorganic filler. According to the graphene pre-dispersed master batch disclosed by the invention, the rubber carrier is used as a base material; meanwhile, the silane coupling agent, the calcium stearate, the naphthenic oil and the inorganic filler are added, the graphene is prepared into a pre-dispersed master batch form, is enabled to be coated in the rubber carrier and is enabled to be uniformly pre-dispersed in master batch, so that the aggregation of the graphene is avoided, and the graphene is enabled to be uniformly dispersed in subsequent rubber products; the master batch is convenient to store, transport and weigh, the utilization rate of the graphene can be effectively improved, and the cost is reduced; the graphene pre-dispersed master batch can be particularly applied to tire tread rubber having higher requirements on processability, crosslinking density, tensile property, ageing-resistant performance, rolling resistance, abrasion property and wet skid resistance, or can be applied to other high-quality rubber products.

Description

technical field [0001] The invention relates to the technical field of pre-dispersion and granulation of rubber additives, in particular to a graphene pre-dispersion masterbatch and its preparation method and application. Background technique [0002] Graphene is a new type of carbon material in which carbon atoms are closely packed in a two-dimensional plane to form a two-dimensional honeycomb lattice. At present, graphene is the thinnest but hardest nanomaterial in the world. It is almost completely transparent and only absorbs 2.3% of light; its thermal conductivity reaches 5300 W / m K, much higher than that of diamond and carbon nanotubes; at room temperature , with an electron mobility of 15000 cm 2 / V·s, much higher than that of carbon nanotubes and silicon crystals; its resistivity is about 10 -6 Ω·cm, excellent conductivity, comparable to some metals; it has a high specific surface area, the limit value can reach 2630 m 2 / g. Due to the unique characteristics of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08L51/06C08L9/06C08L23/16C08L91/00C08K13/06C08K9/06C08K3/04C08K5/098C08J3/22
CPCC08J3/226C08J2309/06C08J2323/16C08J2333/04C08J2351/06C08L9/06C08L23/16C08L33/04C08L51/06C08L2201/08C08L2205/03C08L91/00C08K13/06C08K9/06C08K3/04C08K5/098Y02T10/86
Inventor 连千荣赵永青谷建鹏徐婷张安将
Owner NINGBO ACTMIX POLYMER
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