Method for graphene incorporation into a rubber compounding by using liquid plasticizer route - lpr method

Patent metadata

Field	Value
Publication number	US-2023061187-A1
Application number	US-202117463478-A
Country	US
Kind code	A1
Filing date	Aug 31, 2021
Priority date	Aug 31, 2021
Publication date	Mar 2, 2023
Grant date	—

Abstract

A method for producing a rubber composite includes mixing graphene with a liquid plasticizer to create a graphene/plasticizer solution, mixing the graphene/plasticizer solution with solid rubber and curing to form a preform, and shaping and vulcanizing the preform. The graphene/plasticizer solution may be a nonaqueous solution. The present disclosure also relates to a rubber composite part produced by the above-referenced method.

First claim

What is claimed is:

1 . A method for producing a rubber composite, the method comprising:
mixing graphene with a liquid plasticizer to create a graphene/plasticizer solution; mixing the graphene/plasticizer solution with solid rubber and curing to form a preform; and shaping and vulcanizing the preform.

2 . The method of claim 1 , wherein the graphene comprises at least one of graphene oxide, reduced graphene oxide, nanoplatelets, nanosheets, functionalized graphene, and graphene derivatives.

3 . The method of claim 1 , wherein the liquid plasticizer comprises at least one of oils, mineral oils, waxes, fatty acids, salts of fatty acids, aromatic plasticizers, naphthenic plasticizers, paraffinic plasticizers, derivatives of phthalic, adipic, and sebacic acid esters, trichresil phosphates, and diphenylcresyl phosphates.

4 . The method of claim 1 , wherein the rubber composite comprises 1-50 parts per hundred rubber (PHR) of the graphene/plasticizer solution.

5 . The method of claim 1 , wherein the graphene/plasticizer solution is a nonaqueous solution.

6 . The method of claim 1 further comprising adding auxiliary materials during the mixing of the graphene/plasticizer solution with solid rubber and curing to form the preform.

7 . The method of claim 6 , wherein the auxiliary materials comprise at least one of antioxidants, antiozonants, curing agents, vulcanization agents, and activators.

8 . A method for producing a rubber composite, the method comprising:
mixing graphene with a liquid plasticizer to form a nonaqueous graphene/plasticizer solution; and mixing the nonaqueous graphene/plasticizer solution with solid rubber and curing.

9 . The method of claim 8 , wherein the graphene comprises at least one of graphene oxide, reduced graphene oxide, nanoplatelets, nanosheets, functionalized graphene, and graphene derivatives.

10 . The method of claim 8 , wherein the liquid plasticizer comprises at least one of oils, mineral oils, waxes, fatty acids, salts of fatty acids, aromatic plasticizers, naphthenic plasticizers, paraffinic plasticizers, derivatives of phthalic, adipic, and sebacic acid esters, trichresil phosphates, and diphenylcresyl phosphates.

11 . The method of claim 8 , wherein the rubber composite comprises 1-50 parts per hundred rubber (PHR) of the nonaqueous graphene/plasticizer solution.

12 . The method of claim 8 further comprising adding auxiliary materials during the mixing of the nonaqueous graphene/plasticizer solution with solid rubber and curing.

13 . The method of claim 12 , wherein the auxiliary materials comprise at least one of antioxidants, antiozonants, curing agents, vulcanization agents, and activators.

14 . A rubber composite part produced by a method comprising the steps of:
mixing graphene with a liquid plasticizer to create a graphene/plasticizer solution; mixing the graphene/plasticizer solution with solid rubber and curing to form a preform; and shaping and vulcanizing the preform.

15 . The rubber composite part of claim 14 , wherein the graphene comprises at least one of graphene oxide, reduced graphene oxide, nanoplatelets, nanosheets, functionalized graphene, and graphene derivatives.

16 . The rubber composite part of claim 14 , wherein the liquid plasticizer comprises at least one of oils, mineral oils, waxes, fatty acids, salts of fatty acids, aromatic plasticizers, naphthenic plasticizers, paraffinic plasticizers, derivatives of phthalic, adipic, and sebacic acid esters, trichresil phosphates, and diphenylcresyl phosphates.

17 . The rubber composite part of claim 14 , wherein the rubber composite part comprises 1-50 parts per hundred rubber (PHR) of the graphene/plasticizer solution.

18 . The rubber composite part of claim 14 , wherein the graphene/plasticizer solution is a nonaqueous solution.

19 . The rubber composite part of claim 14 further comprising adding auxiliary materials during the mixing of the graphene/plasticizer solution with solid rubber and curing to form the preform.

20 . The rubber composite part of claim 19 , wherein the auxiliary materials comprise at least one of antioxidants, antiozonants, curing agents, vulcanization agents, and activators.

Assignees

• Ford Global Tech Llc

Inventors

• Polkowski Rodrigo Denizarte De Oliveira
• Herbert Cristiano Grings
• Kiziltas Alper
• Mielewski Deborah Frances
• Gonçalves Cristiane Carla

Classifications

• C08K3/042 Primary

  Graphene or derivatives, e.g. graphene oxides · CPC title

• C08K5/0016

  Plasticisers · CPC title

• B29C35/02

  Heating or curing, e.g. crosslinking or vulcanizing {during moulding, e.g. in a mould}(cold vulcanisation B29C35/18 {; vulcanising tyres, presses therefor B29D30/0601}) · CPC title

• B29C43/003

  characterised by the choice of material · CPC title

• C08L9/06

  Copolymers with styrene · CPC title